# 大乾国际贸易（海口）有限责任公司 > ## Pages LPG Valve Series CHNLGVF丨中國大乾閥門's LPG Valve Series is specially designed for liquefied petroleum gas (LPG) applications, offering reliable sealing performance, high safety standards, and stable operation under demanding pressure and temperature conditions. Widely used in LPG storage, transportation, filling stations, and gas pipeline systems, all products comply with international standards, providing safe and dependable fluid control solutions. The Valve Product Overview Needle instrument Valve Series CHNLGVF丨中國大乾閥門's Needle Instrument Valve Series is designed for precise flow control, suitable for measurement and monitoring systems. Made from high-quality materials, they ensure stability and reliability in high-pressure and high-temperature environments. Compliant with international standards, they are widely used in oil, chemical, and research laboratory fields. The Valve Product Overview Check Valve Series CHNLGVF丨中國大乾閥門's Check Valve Series effectively prevents backflow of media, utilizing precise design and highly corrosion-resistant materials to ensure reliability and durability. Suitable for various fluid media, they can operate stably in high-pressure and high-temperature environments. Compliant with international standards, they are widely used in oil, chemical, and power industries. The Valve Product Overview Oilfield Valve Series CHNLGVF丨中國大乾閥門's Oilfield Valve Series is specially designed for oilfield, petroleum, natural gas, and energy industry applications. The series offers reliable sealing performance, high-pressure resistance, and stable operation under demanding working conditions. Widely used in drilling, transmission pipelines, wellhead systems, and oil & gas processing facilities, all products comply with international standards, providing dependable industrial fluid control solutions. The Valve Product Overview Safety Valve Series CHNLGVF丨中國大乾閥門's Safety Valve Series is designed to protect equipment safety, automatically opening in case of overpressure to prevent damage. Made from high-pressure-resistant materials, they ensure reliability in harsh conditions. All products comply with international safety standards, suitable for oil, chemical, and power industries. The Valve Product Overview Electric Actuator Series CHNLGVF丨中國大乾閥門's Electric Actuator Series utilizes advanced electric control technology for precise fluid control and automation. With high response speed and stability, they are suitable for driving various valves. All electric actuators comply with international standards, providing efficient control solutions. The Valve Product Overview Contact Us DAQIAN Valves R&D Dynamics 核心業務網站國際閥門業務網站: www.DAQIANValves.com 全球品牌形象網站: www.DAQIANGlobal.com Customer services 區域及專業業務網站中國綜合業務網站: www.daqiancn.com 智能製造智控網站: www.daqianIndustries.com 中國閥門業務網站: www.cnlgvf.com 中國閥門業務網站: www.cnlgvalve.cn Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Special Valve SeriesGate Valve Series CHNLGVF丨中國大乾閥門's Gate Valve Series is made from high-quality materials, offering excellent sealing performance and wear resistance, making them suitable for high-temperature and high-pressure environments. With a simple structure, they are easy to operate and maintain, widely used in oil, chemical, and power industries. All gate valves comply with international standards, ensuring safety and reliability. The Valve Product Overview Power Station Valve Series CHNLGVF丨中國大乾閥門's Power Station Valve Series is designed for the power industry, capable of withstanding high-temperature and high-pressure working environments, ensuring safe and reliable fluid control. Utilizing advanced manufacturing processes, the product performance is stable and meets international power standards. Widely used in thermal and hydroelectric power generation. The Valve Product Overview Forged Steel Valve Series CHNLGVF丨中國大乾閥門's Forged Steel Valve Series offers exceptional strength and durability, suitable for high-pressure and high-temperature conditions. Made from high-quality forged steel materials, they ensure reliability in harsh environments. All forged steel valves comply with international standards, widely used in oil, chemical, and power industries. The Valve Product Overview Preservative Valve Series CHNLGVF丨中國大乾閥門's Preservative Valve Series is designed to prevent fluid corrosion and damage, made from high-quality corrosion-resistant materials. Suitable for oil, chemical, and other harsh environments, they ensure safety and reliability. All valves comply with international standards, meeting various application needs. The Valve Product Overview Social Responsibility Global integrated service provider with 40 years of trade excellence and supply chain management. Factory And Production Global trade leader since 1980. Global Presence Global service provider you trust Subscribe to our newsletter. Nostrud amet eu ullamco nisi aute in ad minim nostrud adipisicing velit quis. Duis tempor incididunt dolore. Contact Us Weekly articles Non laboris consequat cupidatat laborum magna. Eiusmod non irure cupidatat duis commodo amet. No spam Officia excepteur ullamco ut sint duis proident non adipisicing. Voluptate incididunt anim. About Us China DAQIAN Ocean Trade (中國大乾洋貿, officially DAQIAN International Trade (Haikou) Co., Ltd.) was established in April 2024 with the approval of the relevant authorities of the People's Government of Hainan Province, China. As a platform for expanding the import and export business of China DAQIAN Valves and CHNLGVF Valves, China DAQIAN aims to strengthen its global business expansion and international trade operations. Founded in 1980, after more than 40 years of development, the company has built a core supply chain management business in valves, sanitary ware and the tea industry. It integrates tea cultivation, factory production, and trade, covering various aspects such as research and development, design, manufacturing, production, and sales in these industries. Recognized as an “AAA-level Enterprise of Contract Compliance and Creditworthiness,” China DAQIAN Ocean Trade is also a carrier and practitioner of the "Blue Min Merchants" spirit of the Maritime Silk Road. The company is committed to international maritime trade and cross-border import and export operations. China DAQIAN Ocean Trade specializes in providing integrated industrial and trade solutions for Europe, America, Russia, the Middle East, Central Asia, Southeast Asia, Belt and Road Initiative countries, and world-class participants in the valve, sanitary ware, and tea industries. With its rich experience and resources in these industries, China DAQIAN Ocean Trade is committed to becoming a trusted global service provider and promoting the international market growth of China DAQIAN Valves and CHNLGVF Valves. Valve Manufacturing Capabilities Valve Manufacturing Capabilities of CHNLGVF丨中國大乾閥門 CHNLGVF丨中國大乾閥門, as a leading global valve manufacturer, possesses outstanding engineering and manufacturing capabilities in the valve production field, along with extensive experience in international projects. Relying on strong production technology, the group provides efficient and reliable valve solutions for various complex conditions. The company has five manufacturing bases and three foundry and forging plants, covering over 300 mu. It is equipped with large CNC machining centers, automated horizontal machining centers, fully automated welding machines, and gantry lathes, ensuring high precision and efficiency in product processing. Employee Team Currently, CHNLGVF丨中國大乾閥門 employs over 1,000 staff, includin... 核心業務網站國際閥門業務網站: 全球品牌形象網站: Customer services 區域及專業業務網站中國綜合業務網站: 智能製造智控網站: 中國閥門業務網站: 中國閥門業務網站: Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Copper Valve Series CHNLGVF丨中國大乾閥門's Electric Actuator Series utilizes advanced electric control technology for precise fluid control and automation. With high response speed and stability, they are suitable for driving various valves. All electric actuators comply with international standards, providing efficient control solutions. The Valve Product Overview Regulating Valve Series CHNLGVF丨中國大乾閥門's Regulating Valve Series offers precise flow control capabilities, widely used in various industrial systems. Made from high-quality materials and advanced manufacturing processes, they ensure stability and durability under high-temperature and high-pressure conditions. All regulating valves comply with international standards, providing reliable flow regulation solutions. The Valve Product Overview Butterfly Valve Series CHNLGVF丨中國大乾閥門's Butterfly Valve Series is known for its lightweight and simple structure, widely used in fluid control and regulation. Made from high-quality materials, they ensure excellent performance under high-temperature and high-pressure conditions. The design of the butterfly valve complies with international standards, offering good sealing and durability. The Valve Product Overview Titanium nickel zirconium Valve Series CHNLGVF丨中國大乾閥門's Titanium Nickel Zirconium Valve Series is made from advanced alloy materials, offering excellent corrosion resistance and high-temperature stability. Suitable for aerospace, marine, and high-tech industries, they ensure safety and reliability in extreme environments. Compliant with international standards, they meet various specialized application needs. The Valve Product Overview Contact Us Valve Product Introduction Valve Product Introduction Overview 核心業務網站國際閥門業務網站全球品牌形象網站 Customer services 區域及專業業務網站中國綜合業務網站智能製造智控網站中國閥門業務網站中國閥門業務網站 Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Slab Type Knife Gate Valve Series CHNLGVF丨中國大乾閥門's Knife Gate Valve Series is designed for reliable shut-off and isolation in slurry, powder, wastewater, pulp, mining, and other demanding media applications. Featuring a compact structure, low flow resistance, and excellent cutting performance, these valves are suitable for handling high-consistency and particle-containing media. All products comply with international standards, delivering dependable industrial fluid control solutions. The Valve Product Overview Water Power Control Valve Series CHNLGVF丨中國大乾閥門's Water Power Control Valve Series is designed for hydroelectric power generation and water treatment industries, capable of reliable operation in high flow and high-pressure environments. Made from highly corrosion-resistant materials, they ensure longevity and low maintenance requirements. Compliant with international standards, they are widely used in various hydraulic systems. The Valve Product Overview Globe Valve Series CHNLGVF丨中國大乾閥門's Globe Valve Series is designed for precise flow control, featuring excellent sealing performance and low fluid resistance. Made from high-strength materials, they ensure long-term stable operation under extreme conditions. Widely used in oil, chemical, and power industries, they meet a variety of operational needs. The Valve Product Overview 中國大乾閥門丨China Leading Global Valve Factory China DAQIAN upholds the strategic philosophy of "DAQIAN QIANDA · QIAN's Grand Realm" . China DAQIAN operates several well-known brands, including China DAQIAN Valves (Including CHNLGVF), China DAQIAN Intelligent Manufacturing, China DAQIAN Smart Control, and China DAQIAN Ocean Trade. As a key participant in the global supply chain, we provide leading integrated industrial trade solutions, serving markets in Europe, the Americas, Russia, the Middle East, Central Asia, Southeast Asia, and countries along the Belt and Road Initiative. We also maintain long-term, stable partnerships with top global players in the valve, bathroom, and tea industries. Get Started Learn more We are committed to providing our customers with high-quality services and products that meet their needs and expectations. Learn More 核心業務網站國際閥門業務網站 : 全球品牌形象網站 : Customer services 區域及專業業務網站中國綜合業務網站 : 智能製造智控網站 : 中國閥門業務網站 : 中國閥門業務網站 : Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Our Team of Experts Nick Francis China DAQIAN is China's Leading Global Valve Factory. China DAQIAN operates several well-known brands, including China DAQIAN Valves (Including CHNLGVF), China DAQIAN Intelligent Manufacturing, China DAQIAN Smart Control, and China DAQIAN Ocean Trade. Recognized as an “AAA-level Enterprise of Contract Compliance and Creditworthiness”, the company demonstrates excellence in fulfilling commitments and maintaining outstanding business integrity. Jeff Francis China DAQIAN is China's Leading Global Valve Factory. As an integrated enterprise, China DAQIAN combines tea planting, manufacturing, and trade, covering the R&D, design, production, and sales of valves, sanitary ware, and tea products. The company embodies the legacy and innovation of Fujian merchants, inheriting the spirit of the "Maritime Silk Road." It is also a pioneering trans-oceanic enterprise in international marine trade and import-export business. Bil Newman China DAQIAN, as a key participant in the global supply chain, provides leading integrated industrial trade solutions, serving markets across Europe, the Americas, Russia, the Middle East, Central Asia, Southeast Asia, and countries along the Belt and Road Initiative. They maintain long-term, stable partnerships with top global players in the valve, sanitary ware, and tea industries, delivering excellence and innovation worldwide. Contact Us Special Valve Series CHNLGVF丨中國大乾閥門's Special Valve Series is made from high-strength materials, offering excellent corrosion resistance, high-temperature, and high-pressure performance for harsh industrial environments. These valves are widely used in the oil & gas, chemical processing, and power industries, addressing unique operational challenges. All valves meet international standards, ensuring safe and reliable long-term operation. The Valve Product Overview 核心業務網站國際閥門業務網站: www.DAQIANValves.com 全球品牌形象網站: www.DAQIANGlobal.com Customer services 區域及專業業務網站中國綜合業務網站: www.daqiancn.com 智能製造智控網站: www.daqianIndustries.com 中國閥門業務網站: www.cnlgvf.com 中國閥門業務網站: www.cnlgvalve.cn Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Contact Us RFQs Welcome · Global Cooperation Starts Here Inquiry Form - 大乾閥門姓名公司郵箱國家電話號碼領英丨WA 需求詳情 Submit Inquir Leave your information and we will contact you shortly to discuss your valve solutions. We are committed to providing our customers with high-quality services and products that meet their needs and expectations. 我们相信我们的机器可以在使用的每个阶段为您提供支持。 DAQIAN Valves Global Export Division Email: QianhaiExport@daqianvalves.com WinstonMarketing@daqianvalves.com Production base 1: No. 32, Jinhai Road, Longwan District, Wenzhou City, Zhejiang Province, China 中国浙江省温州市龙湾区金海大道核心業務網站國際閥門業務網站: www.DAQIANValves.com 全球品牌形象網站: www.DAQIANGlobal.com Customer services 區域及專業業務網站中國綜合業務網站: www.daqiancn.com 智能製造智控網站: www.daqianIndustries.com 中國閥門業務網站: www.cnlgvf.com 中國閥門業務網站: www.cnlgvalve.cn Copyright ©️ 2024，大乾國際貿易（海口）有限責任公司版權所有；「中國」及「China」僅用於描述地理位置或「Made in China」，無其他附加含義。本聲明適用於符合當地法律的市場。 Bellows Valve Series CHNLGVF丨中國大乾閥門's Bellows Valve Series features a bellows seal design that effectively prevents media leakage, ensuring safety and environmental protection. Suitable for various liquid and gas media, especially in highly corrosive and high-purity applications. All products comply with international standards, providing reliable fluid control solutions. The Valve Product Overview Contact Us Company Valve R&D Dynamics Valve Manufacturing Capabilities Valve Manufacturing Capabilities of CHNLGVF丨中國大乾閥門 CHNLGVF丨中國大乾閥門, as a leading global valve manufacturer, possesses outstanding engineering and manufacturing capabilities in the valve production field, along with extensive experience in international projects. Relying on strong production technology, the group provides efficient and reliable valve solutions for various complex conditions. The company has five manufacturing bases and three foundry and forging plants, covering over 300 mu. It is equipped with large CNC machining centers, automated horizontal machining centers, fully automated welding machines, and gantry lathes, ensuring high precision and efficiency in product processing. Employee Team Currently, CHNLGVF丨中國大乾閥門 employs over 1,000 staff, including nearly 200 R&D and technical personnel. This large team not only enhances production capacity but also strengthens product development and technological innovation, ensuring a quick response to market demands. Equipment and Technology The company features a modern automated production line that enables end-to-end automated production from raw material processing to final product assembly. CHNLGVF丨中國大乾閥門’s technical team focuses on innovation and technology optimization, producing tens of thousands of various types of valves annually, including gate valves, ball valves, butterfly valves, globe valves, and check valves. These products are widely used in industries such as oil and gas, power generation, petrochemicals, metallurgy, chemicals, and water supply. Quality Management Systems and International Certifications CHNLGVF丨中國大乾閥門 is committed to providing valve products that meet the highest standards for the global market and has obtained multiple international valve management system certifications. These certifications include: ISO 9001: Quality management system ISO 14001: Environmental management system ISO 45001: Occupational health and safety management system API 6D, API 600, API 602, API 609: Various American Petroleum Institute standards CE/PED: Pressure Equipment Directive certification API 607 and API 6FA: Fire safety certifications ISO 15848-1: Low-leakage standard EAC Certification: Compliance with standards in Russia and the Eurasian Economic Union TüV Certification: Compliance with European market standards LLC Certification: Special certification for Russia and Eastern Europe TC Certification: Technical standard certification for CIS countries Market Applications and Global Reach CHNLGVF丨中國大乾閥門’s products are widely applied in various domestic and international industries and projects. Through strict quality control and efficient production management, the group actively expands its global market reach, exporting products to regions such as Europe, North America, Russia, Russian-speaking countries, the Middle East, Southeast Asia, and Africa, earning widespread recognition and a solid reputation. 核心業務... Ball Valve Series CHNLGVF丨中國大乾閥門's Ball Valve Series features quick opening and closing, suitable for applications with high flow rates and low pressure loss. Made from high-performance materials, they ensure good sealing and durability, suitable for various industrial environments. All products comply with international standards, providing reliable fluid control solutions. The Valve Product Overview ## Products Liquefied gas special valve Liquefied gas special valve Liquefied gas special valve Liquefied gas special valve Liquefied gas special valve Liquefied gas special valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Needle type instrument valve Swing check valve Cast iron slow closing check valve Lift check valve Cast iron lift check valve Stainless steel check valve Power station check valve Axial flow check valve Quick closing check valve for air extraction Cast steel check valve Axial flow check valve Vertical check valve Power station check valve American standard check valve Oilfield Special Valve Oilfield Special Valve Double Block and Bleed Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Oilfield Special Valve Large diameter gate valve Micro opening closed check valve High temperature and high pressure safety valve Spring fully open safety valve Pilot operated safety valve High temperature and high pressure safety valve Insulated jacket safety valve Micro lift safety valve Spring impulse safety valve Micro lift safety valve Fully enclosed safety valve High temperature and high pressure safety valve American standard fully open safety valve High temperature and high pressure safety valve Spring fully open safety valve Stainless steel safety valve Double spring safety valve Pneumatic actuator Pneumatic actuator Electric actuator Electric actuator Electric actuator Electric actuator Pneumatic actuator Electric actuator Electric actuator Electric actuator Electric actuator Electric actuator Pneumatic actuator Manual gas gate valve Pneumatic gate valve Soft seal gate valve Dark stem gate valve Stainless steel hard seal dark stem gate valve

大乾閥門·大乾智造·乾大天下

China DAQIAN Valves · DAQIAN Intelligent Manufacturing · QIAN's Grand Realm

1.產品基本資訊丨Basic Product Information

· Product Name: GB Standard Flanged Gate Valve

· Product ID: DQYM-DAQIAN-02ZFM-0006 [国标法兰闸阀]

· Product Category: Gate Valve (閘閥)

· Application:

o Manufactured by CHINA DAQIAN Valves, utilizing DAQIAN Intelligent Manufacturing technology.

o Applied in petroleum, chemical, and thermal power plants, pipelines for oil, water, and steam as a shut-off device.

2.產品特點丨Product Features

· Compact Structure: Designed for rigidity with a small flow coefficient.

· High-Quality Sealing: Stainless steel and carbide sealing surfaces ensure longevity.

· Advanced Packing: Flexible graphite packing ensures reliable sealing, lightweight, and easy operation.

· Diverse Drive Modes: Options include manual, pneumatic, electric, and gear-driven.

· Structural Variety: Includes elastic wedge single gate, rigid wedge single gate, and double gate types.

3.執行標準丨Executive Standards

· Design Specification: GB/T 12234

· Structure Length: GB/T 12221

· Flange Connection: JB/T 79.1

· Testing & Inspection: JB/T 9092

· Pressure-Temperature: GB/T 9131

· Product Identification: GB/T 12220

4.适用介质和适用温度丨Suitable Medium and Temperature

· Carbon Steel (C type): For water, steam, and oil, ≤425°C.

· Chromium Nickel Titanium Steel (P type): For nitric acid, ≤200°C.

· Chromium Nickel Molybdenum Titanium Steel (R type): For acetic acid, ≤200°C.

· Chrome Molybdenum Steel (I type): For water, steam, and oil, ≤550°C.

5.主要部件材料丨Main Part Materials

· Materials: Carbon steel, stainless steel, or chrome-molybdenum steel for valve body and bonnet.

· Sealing: Carbide or stainless steel; Graphite or Teflon for packing materials.

6.詢價丨Inquiry

Dear Customer,

Thank you for your interest in China DAQIAN Valves. Should you have any inquiries regarding pricing or potential cooperation, please feel free to contact us:

· Email: chnlgvf@daqiancn.com

· Fill out the inquiry form, and we will respond within 24 hours.

We are committed to providing you with tailored quotes and solutions based on your needs, and we look forward to building a long-term, mutually beneficial partnership.

Thank you for your trust and support!

American standard power station gate valve American standard stainless steel gate valve High pressure American standard gate valve Cast steel dark stem gate valve American standard stainless steel gate valve High pressure flange gate valve Stainless steel bevel gear gate valve Pneumatic gate valve High temperature gate valve Pneumatic gate valve Bevel gear gate valve Pneumatic parallel double gate valve Stainless steel electric gate valve American standard high pressure power station gate valve Electric gate valve

DAQIAN Valves · DAQIAN Intelligent Manufacturing · QIAN's Grand Realm

DAQIAN Valves is a global leader in valve manufacturing, committed to providing high-quality valve solutions worldwide with the philosophy of "DAQIAN Valves · DAQIAN Intelligent Manufacturing · QIAN's Grand Realm" Our stainless steel gate valves are designed using advanced intelligent manufacturing processes and precision engineering, ensuring each product delivers outstanding performance and reliability.

Product Features

· High-Quality Design
This GB standard stainless steel gate valve is ideal for pipeline systems in industries such as petrochemical and thermal power generation, performing exceptionally well in high-pressure and high-temperature environments. Key components, including the valve body, bonnet, gate, and stem, are made from high-quality stainless steel to ensure corrosion and wear resistance, making it suitable for harsh operating conditions.

· Low Fluid Resistance & Bidirectional Flow
The valve design focuses on low fluid resistance, ensuring the medium flows without directional loss and minimizing pressure drop. Its bidirectional flow design allows it to function in pipelines with changing flow directions, ensuring smooth and uninterrupted flow.

· Effortless Operation & Compact Design
The valve features easy operation with minimal torque for opening and closing, making it suitable for frequent cycling operations. The compact design saves installation space, making it an efficient control device in pipelines.

Technical Parameters

· Material Choice: Austenitic stainless steel, offering excellent corrosion resistance, particularly in oxidizing and acidic environments.

· Application Range: Suitable for industries like petrochemicals and thermal power plants, with sizes from DN 15 to DN 800, pressure ratings from 1.6 MPa to 20.0 MPa, and a maximum temperature of 200°C.

· Reliability: High-quality valve body, bonnet, seat, and stem ensure long-lasting and efficient operation.

Commitment of DAQIAN Valves

With the philosophy of "DAQIAN Intelligent Manufacturing, QIAN's Grand Realm," DAQIAN Valves is dedicated to providing high-quality valve products for the global market and advancing the continuous progress of global manufacturing. Each product carries the wisdom and strength of MADE IN CHINA, offering efficient, reliable solutions for users worldwide.

Contact us now for a personalized quotation and solution tailored to your needs!

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metal hard-sealed butterfly valve Gas-liquid linkage butterfly valve Pneumatic butterfly valve Soft-sealed turbine butterfly valve Electric wafer butterfly valve Soft-sealed handle butterfly valve Wafer butterfly valve Soft seal Turbine butterfly valve High-pressure butterfly valve Ventilation butterfly valve Two-way pressure-welding butterfly valve Pneumatic quick-cut butterfly valve Hydraulic-controlled butterfly valve Ventilation butterfly valve Double eccentric butterfly valve Metal-to-metal butterfly valve Butt-welding butterfly valve Wafer butterfly valve Two-way pressure-metal-to-metal butterfly valve Stainless steel flange butterfly valve Two-way pressure-welding butterfly valve Metal-to-metal butterfly valve Hard-to-metal sealed flange butterfly valve Two-way sealed metal-to-hard wafer butterfly valve Two-way sealed metal-to-hard flange butterfly valve Titanium ball valve Special material shut-off valve Pneumatic low-temperature ball valve Electric titanium ball valve Electric 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low temperature globe valve National standard globe valve High pressure Y-type globe valve Stainless steel flanged globe valve High pressure stainless steel globe valve Large diameter cast steel flanged globe valve Bevel gear national standard globe valve Stainless steel flanged globe valve Bevel gear low temperature globe valve American standard globe valve Ammonia globe valve American standard corrugated pipe globe valve Special globe valve for liquefied gas Cryogenic globe valve Bevel gear low temperature globe valve High temperature and high pressure globe valve Oxygen globe valve Forged steel Angle globe valve Antibiotic globe valve Angle ammonia globe valve Large-caliber American standard gate valve American standard oxygen globe valve Electric ultra-high pressure parallel K-plate gate valve GB standard oxygen globe valve Gas-liquid linkage fully welded spherical ball valve Sampling valve Ultra-high pressure special material forged steel check valve Titanium turbine fixed ball valve Large-caliber high-temperature axial flow regulating valve Pneumatic regulating valve American standard high-pressure stainless steel flange gate valve High-temperature and high-pressure power station plug valve Embedded discharge ball valve Electric flow regulating and pressure regulating valve American standard high-pressure stainless steel welded globe valve Electric flow regulating and pressure regulating valve Ultra-high pressure special material forged steel globe valve Gas-liquid linkage fully welded spherical ball valve 2 Discharge valve High-temperature and high-pressure power station gate valve American standard high pressure stainless steel flange globe valve American standard high pressure stainless steel flange gate valve American standard high pressure stainless steel flange check valve American standard high pressure welded Y-type globe valve Bellows valves Bellows gate valve Bellows valves Extended stem globe valve Bellows valves Bellows valves Bellows gate valve American standard high-pressure flange ball valve Forged steel hard seal ball valve Stainless steel turbine ball valve Electric flange forged steel ball valve Double release gas special ball valve Stainless steel turbine ball valve Stainless steel turbine ball valve High platform ball valve Manual titanium ball valve Double release gas special ball valve High pressure flange ball valve Pneumatic hydraulic dual release ball valve Electric three-way ball valve Stainless steel fixed ball valve Double release gas special ball valve Double release gas special ball valve Forged steel hard seal ball valve Fixed flange ball valve Forged steel hard seal ball valve Electric gas ball valve High pressure forged steel ball valve Turbine flange ball valve Top mounted flange ball valve Fully welded buried double relief ball valve Forged steel hard seal ball valve Fixed ball valve Stainless steel fixed ball valve Fixed ball valve Gas specific ball valve Top mounted stainless steel flange ball valve Forged steel flange ball valve Fully welded buried double relief ball valve Liquefied gas special ball valve Fully welded ball valve Soft sealed floating ball valve Manual eccentric hemispherical valve Flange high temperature valve Track ball valve Three way ball valve Turbine welded ball valve Stainless steel threaded ball valve Stainless steel hard sealed V-shaped ball valve Pneumatic hydraulic direct buried ball valve Low temperature pneumatic ball valve Three way ball valve Forced sealing ball valve Fully welded spherical flange ball valve ## Articles 1.Project Update This DN500 bevel gear-operated pressure seal butt-weld gate valve for power plant service has been designed and tested in strict accordance with ASME B16.34 and JB/T 3595, the dedicated standard for power plant valves. 2.Project H 1.Project Update This delivery covers a DN400 bevel gear operated Y-pattern pressure seal butt-weld globe valve, primarily designed for main steam and hot reheat steam systems in 1,000 MW-class thermal power generation units. It is suitable for med 1. Product Overview This custom-engineered valve is supplied in DN200 / NPS 8 and is mainly suitable for power plant main steam lines, high-temperature and high-pressure steam systems, high-pressure feedwater lines, coal chemical high-pressure proce 1. Project Update This delivery covers customized valve sizes ranging from DN200 to DN1800, specifically engineered as electric high-pressure pressure seal butt-weld gate valves for power plant main steam systems and long-distance transmission pipeli 1. Introduction: Valve Procurement Has Shifted from Cost-Driven to Risk-Driven Decision Making In modern EPC power plant, petrochemical, and energy infrastructure projects, valve selection is no longer a simple equipment procurement task. It has —— DAQIAN Valves | Engineering-Driven Valve Selection for Power Projects 🔹Why Many Valve Failures Start at Procurement In power plant projects, valve failures are often discovered during operation. But in reality, most problems are already decide 1. Project Update The delivered DN50–DN400 stainless steel high-pressure gate valves are designed for critical applications in power plants and petrochemical industries, covering pressure ratings from Class 600 to Class 2500 (PN100–PN420), and are st The delivered DN150–DN400 high-temperature and high-pressure pressure seal butt-weld gate valves are engineered for critical power plant applications, designed for operating temperatures above 540°C and pressure ratings from Class 1500 to Class 2500. 1. Project Update The delivered DN400 to DN1600 pneumatic flanged gate valves with manual handwheel override represent DAQIAN Valves’ flagship solution, engineered for demanding applications such as large-scale municipal trunk pipelines, long-distanc 1. Project Update The delivered DN600 power plant high-temperature and high-pressure pressure self-sealing check valve is strictly designed and manufactured in compliance with international and industry standards such as ASME B16.34, API 602, and DL/ 1. Project Update The delivered DN300 and DN350 bellows flange globe valves are meticulously designed, manufactured, and fully tested in strict compliance with DIN 3353 and ASME B16.34 standards. 2. Project Highlights The valve body is precision-cas 1. Project Update The delivered DN100 CL1500, DN80 CL2500, and DN200 CL600 high-pressure forged steel globe valves for power plant applications are designed, manufactured, and tested in strict accordance with ASME B16.34 and API 602 standards, ensuri 1. Project Update The delivered DN1200 fire gate valve has been designed and pressure-tested in strict accordance with AWWA C515, EN 1074-2, and API 598 standards. 2. Project Highlights The valve body is made of ductile iron QT450-10, ensuring outst ——DAQIAN Valves | High-Performance Valves for Thermal & Gas-Fired Power Plants 🔹 Quick Overview Reliable Service Life: Consistent Performance: System-Level Engineering: Global Trust: Reduce maintenance costs and prevent operational downtime with DAQ 1. Project Update The delivered DN2000 and DN2800 motorized large-diameter non-rising stem gate valves are designed, manufactured, and tested in strict accordance with AWWA C509 / AWWA C515, EN 1074-2, ASME B16.34, and ISO 5208 international standard 1. Project Update The delivered DN400 safety valve is designed, manufactured, and tested in strict compliance with API 526, API 520, ASME Section VIII, and ISO 4126, ensuring accurate and reliable overpressure protection across various pressure syste 1. Project Update The delivered DN3200 motorized large-diameter flanged butterfly valve is primarily applied in coal gas and natural gas long-distance transmission pipeline systems. The product is strictly designed, manufactured, and tested in accord 1. Project Update The delivered DN100 Free Float Steam Trap has been designed, manufactured, and tested in strict accordance with ISO 6552 and EN 26704 standards. 2. Project Highlights The valve body is made of ASTM A216 WCB carbon steel, ensuring e 1. Project Update The delivered DN1000 large‑diameter check valve has been designed and tested in strict compliance with BS EN 12334 and EN 12266‑1 standards. 2. Project Highlights Its body is constructed from ductile iron GGG50, ensuring reliable a 1. Project Update The delivered DN600 Power Plant Globe Valve is designed and manufactured strictly in accordance with BS 1873 and ASME B16.34, with pressure and sealing tests performed according to API 598, ensuring exceptional safety and reliabilit 1. Project Update The delivered DN300 and DN600 power plant gate valves are fully designed and tested in strict accordance with API 600 and ASME B16.34 standards, ensuring outstanding performance and reliable operation for every valve. 2. Project Hi 1. Project Update The delivered DN600 Pneumatic Knife Gate Valve is fully designed and tested in strict accordance with API 609 and ISO 14313 standards, ensuring outstanding performance and reliable operation for every valve. 2. Project Highlight 1. Inquiry Invitation｜Welcome RFQs & Global Valve Cooperation Looking for reliable valve suppliers or engineering support? We welcome your RFQs, cooperation proposals, and technical inquiries. DAQIAN Valves · DAQIAN Intelligent Manufacturing DAQIAN O 1. Project Update The newly delivered 10″ lug type butterfly valve is meticulously designed and rigorously tested in full compliance with API 609 and ASME standards. 2. Project Highlights 🔹 Technical Highlights: Its body is crafted from ASTM A216 WC 1. Project Update Delivered with excellence! DAQIAN Valves has successfully completed the delivery of 32", 30", and 12" API bevel gear-operated globe valves, strictly designed and tested in accordance with API 602 and ASME standards—empowering global 1. Project Update Smooth delivery accomplished! DAQIAN Valves has successfully delivered multiple 18", 16", 12", 8", and 6" NPS6 2500LB (including 1500LB) pneumatic high-temperature and high-pressure control valves. All products are strictly engineer 1. Project Update The API 600 standard carbon steel gate valve shipped this time strictly follows American API and ASME standards for design and testing. It uses ASTM A216 WCB steel for the valve body, with a 13Cr hard alloy overlay on the sealing su Introduction to CHNLGVF丨中國大乾閥門 Valve Product Series As a global leader in valve manufacturing, CHNLGVF丨中國大乾閥門 is committed to delivering high-quality, reliable valve solutions that are widely used across industries such as oil and gas, power, chemica CHNLGVF丨中國大乾閥門 Needle Instrument Valve Series The Needle Instrument Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes CHNLGVF丨中國大乾閥門 Electric Actuator Series Introduction The Electric Actuator Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes CHNLGVF丨中國大乾閥門 Copper Valve Series Introduction The Copper Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and qualit CHNLGVF丨中國大乾閥門 Liquefied Gas Valve Series Introduction The Liquefied Gas Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing proces CHNLGVF丨中國大乾閥門 Oilfield Valve Series Introduction The Oilfield Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and qu CHNLGVF丨中國大乾閥門 Titanium Nickel Zirconium Valve Series The Titanium Nickel Zirconium Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufact CHNLGVF丨中國大乾閥門 Flat Knife Gate Valve Series Introduction The Flat Knife Gate Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing pr CHNLGVF丨中國大乾閥門 Corrosion-Resistant Valve Series The Corrosion-Resistant Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing proces CHNLGVF丨中國大乾閥門 Bellows Valve Series Introduction The Bellows Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and qual CHNLGVF丨中國大乾閥門 Forged Steel Valve Series Introduction The Forged Steel Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processe CHNLGVF丨中國大乾閥門 Water Power Control Valve Series The Water Power Control Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing proces CHNLGVF丨中國大乾閥門 Regulating Valve Series Introduction The Regulating Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes an CHNLGVF丨中國大乾閥門 Safety Valve Series Introduction The Safety Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and qualit CHNLGVF丨中國大乾閥門 Power Station Valve Series Introduction The Power Station Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing proces CHNLGVF丨中國大乾閥門 Butterfly Valve Series Introduction The Butterfly Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and CHNLGVF丨中國大乾閥門 Ball Valve Series Introduction The Ball Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and quality ma CHNLGVF丨中國大乾閥門 Check Valve Series Introduction The Check Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and quality CHNLGVF丨中國大乾閥門 Globe Valve Series Introduction The Globe Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and quality CHNLGVF丨中國大乾閥門 Special Valve Series Introduction The Special Valve Series from CHNLGVF丨中國大乾閥門 is specifically developed to meet diverse industrial requirements with high-performance valve products. We utilize advanced manufacturing processes and qual Abstract With the rapid development of the global economy, the demand for high-quality valve products in the Russian language market is increasing day by day. In order to ensure that products can successfully enter this market, EAC certification has Abstract This article discusses CHNLGVF丨中國大乾閥門 has successfully developed and manufactured high-quality valve products that meet API quality standards through in-depth research on the American Petroleum Institute (API) valve quality standards and adj Abstract As a key control component in industrial automation, electric regulating valves’ dynamic characteristics and control accuracy directly affect the operating efficiency and stability of the system. This article conducts in-depth research on th Abstract This paper conducts in-depth research on the opening and closing dynamic characteristics of high-parameter steam spring-type safety valves. Through a combination of experimental analysis and numerical simulation, the valve response character Abstract Large-diameter triple-eccentric metal hard-seal butterfly valves are widely used in petroleum, chemical, metallurgy, electric power and other industrial fields. They have compact structure, excellent sealing performance, high temperature and Abstract In the nuclear power industry, stop valves are important equipment for controlling the flow of media and cutting off pipelines, and have high safety and reliability requirements. Especially in nuclear-level applications, the design of stop v Abstract With the continuous advancement of industrialization, especially in high-temperature, high-pressure and corrosive environments such as petroleum, chemical industry, electric power, and metallurgy, hard-sealed high-temperature and wear-resist Abstract With the increasing demand for industrial pipeline transportation, gate valves, as an important control equipment, are increasingly used in chemical, petroleum, natural gas and other fields. However, the gas-solid two-phase flow inside the g Abstract Butterfly check valves are important control equipment in industrial pipeline systems and are widely used in many fields such as petroleum, chemical industry, and food. In order to improve the performance and durability of butterfly check va Abstract With the continuous growth of global energy demand, underwater oil production technology has gradually become the main means of obtaining marine oil and gas resources. As the core component of the fluid control system, the performance of und