Best Diaphragm Valve Manufacturers Suppliers
WENZHOU SANTHAI VALVE PIPE FITTING CO., LTD.
🇨🇳 China
200651-100 peopleManufacturer/Trading CompanyOEM manufacturer
ODM manufacturer
Product customization
High-tech enterprise
Shipments
90
Key customer
DN TECHNOLOGY
Key market
Europe
Review
4.4
Butterfly Valve Body Rough Embryo Semi-forged Steel$8
Sa Food/Sanitary Grade Stainless Steel Crimping Tri-clamp Hose Couping Pipe Fittings Ferrule With Neck Barbed Hose Tails Ferrule$4.5
SANTHAI SS304/316L Centering Ring Outer Ring O' Ring Deep Groove Ball Thin-wall Bearing$0.22
Untreated Steel Plate, Sanitary Grade Stainless Steel Plate$1
SANTHAI SS304/316L Sanitary Double Pin Clamp(13MHHM-DP/13SF)$2.7
Sanitary Ferrule Rough Embryo Semi-formed Cast Iron$0.5
Santhai Sanitary Stainless Steel 304 316L SMS RJT DIN 11851 Union Hot Selling End Cap with chain$8
Lianke Valve Co., Ltd.
🇨🇳 China
198211-50 peopleManufacturer/DistributorEstablished brand
OEM manufacturer
Low MOQ
ODM manufacturer
Shipments
71
Key customer
FLOWCON TEKNIK INDONESIA
Key market
North America
Review
5
Stainless Steel Basket Strainer Screen$80
Kaixin Pipeline Technologies Co., Ltd
🇨🇳 China
1999201-300 peopleManufacturer/Trading Company/WholesalerEstablished brand
OEM manufacturer
Product customization
High-tech enterprise
Shipments
251
Key customer
VIMEX
Key market
North America
Description
Kaixin Pipeline Technologies Co., Ltd, also known as Ningbo Kaixin Pump & Valve Manufacture Co., Ltd, is a high-tech manufacturer and wholesaler established in 1999 and headquartered in Ningbo, China. Operating from a 25,000 square meter facility with nearly 300 employees, the company specializes in the research, development, and production of industrial plastic pipeline systems and corrosion-resistant equipment. Their extensive product portfolio includes plastic valves (diaphragm, ball, butterfly, globe, and check), pipes, and fittings manufactured from high-performance materials such as CPVC, UPVC, PVDF, PPH, FRPP, and RPP. Notably, the company is a unique manufacturer in China capable of producing DN1000 plastic butterfly valves and molding DN600 pipe fittings in a single process.
Kaixin Pipeline Technologies serves a diverse range of demanding sectors, including chemical processing, pharmaceutical, lithium battery production, steel, and water treatment. Their technical capabilities are supported by a fully automated R&D center and advanced testing laboratories, utilizing raw materials imported from Japan, France, and the United States. The company holds several key certifications, including ISO 9001:2000, ISO 14001, and the National Pressure Pipeline Registration Safety License (TS). As a member of the SINOPEC equipment source network, they provide OEM and ODM services to global markets. With an annual turnover nearing 200 million yuan, the company exports its specialized fluid control solutions to over 150 countries across Europe, North America, and Asia.
Best Factory PVDF Diaphragm Valve, Chemical Valve, Plastic Valve$9
Best Quality Pph Diaphragm Valve, Chemical Valve, Plastic Valve$6.7
Best Factory Rpp Diaphragm Valve, Chemical Valve, Plastic Valve$6.7
Best Factory CPVC Diaphragm Valve, Chemical Valve, Plastic Valve$6.7
Plastic Valve, Plastic Material PVDF Diaphragm Valve, Chemical & Industrial Use$6.7
Plastic Valve, Plastic Material Pph Diaphragm Valve, Chemical & Industrial Use$6.7
Plastic Valve, Plastic Material UPVC Diaphragm Valve, Chemical & Industrial Use$6.7
Best Factory Rpp Diaphragm Valve, Industrial Plastic Valve, PVC Valve$6.7
Best Factory Pph Diaphragm Valve, Industrial Plastic Valve, PVC Valve$6.7
Plastic Valve, Plastic Material CPVC Diaphragm Valve, Chemical & Industrial Use$6.7
Best Quality PVDF Diaphragm Valve, Industrial Plastic Valve, PVC Valve$9
Plastic Valve, Plastic Material Rpp Diaphragm Valve, Chemical & Industrial Use$6.7
Crane Instrumentation & Sampling PFT Corp.
🇺🇸 United States
1925201-300 peopleManufacturer/DistributorEstablished brand
OEM manufacturer
Own brand
High-tech enterprise
Shipments
4522
Key customer
RELIANCE INDUSTRIAL
Key market
🇺🇸 United States
Description
Crane Instrumentation & Sampling PFT Corp., a business unit of Crane Co., is a premier manufacturer of hydraulic and pneumatic control products and components. Established in 1925 and headquartered in Spartanburg, South Carolina, the company operates a significant manufacturing facility and employs between 200 and 300 professionals. They specialize in high-performance fluid handling solutions under globally recognized brands including HOKE®, GYROLOK®, GO REGULATOR®, DOPAK®, and TEXAS SAMPLING®. Their extensive product portfolio features precision instrumentation valves (ball, needle, diaphragm, and check), pressure regulators, tube fittings, sampling cylinders, and modular sampling systems. These components are engineered from superior alloys such as 316 stainless steel, Monel®, Hastelloy®, and titanium to ensure safety and reliability in critical environments. The company serves a diverse range of industries, including oil and gas, chemical and petrochemical, power generation, pulp and paper, and alternative fuels. As an OEM and contract manufacturer, they provide both standardized and custom solutions, supported by a global distribution network spanning over 67 countries. Their commitment to quality is demonstrated through certifications such as ISO 9001:2015, ASME, RoHS, REACH, and EAC, ensuring compliance with international safety and environmental standards.
Diaphragm Valves
Instrumentation Valves
Instrumentation Valves
Instrumentation Valves
Connect Tube Fittings Together
CT76
Lapped Flange Connectors
Bonded Seals
Spare Parts
Lapped Flange Connectors
Wenzhou Yuanyu Mechanical Co., Ltd.
🇨🇳 China
200251-100 peopleManufacturer/Trading CompanyEstablished brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
3
Key customer
LAURUS BIO
Key market
North America
Description
Wenzhou Yuanyu Mechanical Co., Ltd. is a professional manufacturer and trading company based in Wenzhou, China, specializing in high-precision sanitary valves, pipe fittings, and fluid equipment. Established in 2002, the company operates a factory equipped with advanced CNC machinery and testing equipment to produce hygiene-grade components from stainless steel SUS304 and SUS316L. Their extensive product portfolio includes sanitary butterfly valves, ball valves, diaphragm valves, check valves, and various pipe fittings such as elbows, tees, ferrules, and clamps. They also provide specialized fluid equipment, including sanitary pumps, cleaning balls, sight glasses, and manhole covers.
With over two decades of industry experience, the company serves a diverse range of sectors, including dairy, beer, food, pharmaceutical, beverage, cosmetics, and chemical industries. Wenzhou Yuanyu Mechanical Co., Ltd. is a verified supplier for major brands such as Snowflake Beer and the Panda Group. Their manufacturing processes adhere to rigorous international standards, including ISO, CE, DIN, SMS, 3A, RJT, and BPE, ensuring high-quality mirror-polished finishes and precision engineering.
The company employs between 51 and 100 people and generates an annual revenue of approximately US$5 million to US$10 million. As an export-oriented business, they offer OEM and ODM services to international markets across North America, Europe, Southeast Asia, and South America. They are committed to providing competitive pricing and reliable fluid solutions through an advanced management system and strict quality control protocols.
Sanitary Electric Butterfly Valve (D921X-C)
Sanitary Welded Butterfly Valve
Sanitary Quick-Install Butterfly Valve
Sanitary 3-Way Non-Encapsulated Ball Valve
Sanitary Welded Check Valve
Sanitary Thread Butterfly Valve
Sanitary Flange
Sanitary Movable Fittings
Qingdao Elite Machinery Manufacture Co., Ltd.
🇨🇳 China
2001101-200 peopleManufacturer/Trading CompanyEstablished brand
High-tech enterprise
OEM manufacturer
ODM manufacturer
Shipments
881
Key customer
CAMOZZI
Key market
North America
Description
Qingdao Elite Machinery Manufacture Co., Ltd. (ESG), founded in 2001, is a high-tech manufacturer and trading company specializing in fluid process control system solutions. Based in Qingdao, China, the company operates a 16,000-square-meter facility and employs between 101 and 200 skilled professionals. ESG is recognized as a specialized and innovative "Little Giant" enterprise, integrating R&D, precision casting, CNC machining, assembly, and rigorous testing within its vertically integrated production model.
The company's core product portfolio includes a comprehensive range of pneumatic and stainless steel valves, such as angle seat valves, shuttle valves, ball valves, butterfly valves, diaphragm valves, and check valves. They also manufacture steam traps, strainers, pressure reducing valves, and pneumatic actuators. These products serve 19 major industries, including new energy, rubber and plastics, and hygienic sectors. Beyond fluid control, the company leverages its in-house foundries to provide OEM and ODM services for investment casting and CNC machining parts, and maintains a diverse line of automotive steel and alloy wheels.
ESG maintains high quality standards with ISO 9001, CE, and CU-TR certifications. Their quality control infrastructure features advanced equipment, including Swiss CMMs, German spectrometers, and Japanese roughness testing meters. With an established export presence in over 60 countries, ESG has become a trusted supplier for global corporations such as Emerson, Samsung, GM, and ITT Corporation, offering one-stop services for complex industrial projects and equipment assembly.
DN25 Stainless Steel Wafer Type Check Valve$7
Wenzhou Nuomeng Technology Co., Ltd.
🇨🇳 China
201351-100 peopleManufacturer/Trading CompanyOEM manufacturer
ODM manufacturer
Own brand
Product customization
Shipments
484
Key customer
DAT NGUYEN PHAT
Key market
North America
Review
4
Premium Sanitary Stainless Steel SS304/316L Aseptic Sample Valve$15
Zhejiang Doxi Valve Co., Ltd.
🇨🇳 China
1990501-1000 peopleManufacturer/Trading CompanyHigh capacity factory
Established brand
Own brand
Product customization
Shipments
15
Key customer
OTKONSAS
Key market
North America
Description
Zhejiang Doxi Valve Co., Ltd., a member of the Xuanda Industrial Group, is a prominent manufacturer and trading company specializing in high-performance anti-corrosion valves and fluid control equipment. Established in 1990 and headquartered in Wenzhou, China, the company operates from a 66,000-square-meter facility in the Xuanda Industrial Park. With a workforce of over 600 employees, including a dedicated team of engineers and technicians, the company has established itself as a National High-Tech Enterprise and an executive member of both the China Valve Association and the China Pump Industry Association.
The company specializes in the design and manufacture of PFA, PTFE, and FEP lined valves, which are engineered specifically for aggressive fluids and corrosive applications in industries such as chemical processing, oil and gas, metallurgy, and semiconductor manufacturing. Its extensive product portfolio includes lined butterfly, ball, diaphragm, plug, and check valves, as well as specialized high-temperature valves capable of withstanding up to 1,200°C. Doxi Valve also provides industrial pumps, pipe fittings, and sulfuric acid storage tanks.
Equipped with advanced manufacturing capabilities, the company operates a Class 10,000 cleanroom for high-purity applications and maintains a Technology Center and Anti-Corrosion Research Institute to drive innovation. They offer comprehensive OEM, ODM, and contract manufacturing services, ensuring products meet international standards including ANSI, DIN, JIS, and GB. Zhejiang Doxi Valve Co., Ltd. holds numerous quality certifications, including ISO 9001, ISO 14001, CE/PED, API 6D, and FDA, supporting its export operations across North America, South America, and Europe.
Stainless Steel PTFE Lined Diaphragm Valve$192
Donjoy Technology Co., Ltd.
🇨🇳 China
1993301-500 peopleManufacturer/Trading Company/Wholesaler/DistributorEstablished brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
3119
Key customer
FESTO
Key market
🇺🇸 United States
Review
5
DONJOY EPDM PTFE 3 Way Diaphragm Valve Stainless Steel Sanitary Diaphragm Valve Diaphragm Valve$80.7
DONJOY Sanitary 2-way Direct Manual Operated Diaphragm Valve Diaphragm Control Valves Sanitary Diaphragm Valve$46.56
Aseptic Radial Diaphragm Valve$80
Radial Tank Bottom Diaphragm Valve$80
Stainless Steel Multiport Diaphragm Valve$80
Sanitary Grade Pneumatic Radial Diaphragm Valve$50
Pneumatic Stainless Steel Multiport Diaphragm Valve$80
Radial Diaphragm Valve with Flexible Body$80
Multiport Stainless Steel Diaphragm Valve Body$80
Welded Pneumatic Tank Bottom Diaphragm Valve$50
Sanitary Grade Multiport Pneumatic Diaphragm Valve$250
Pneumatic Welded Tank Bottom Diaphragm Valve$50
Xuanda Industrial Group Co., Ltd.
🇨🇳 China
1990501-1000 peopleManufacturer/Trading Company/Service Company/DistributorHigh capacity factory
Established brand
OEM manufacturer
ODM manufacturer
Key customer
YUNNAN INSTITUTE OF CHEMICAL TECHNOLOGY
Key market
North America
Description
Xuanda Industrial Group Co., Ltd., established in 1990 in Wenzhou, China, is a comprehensive manufacturer, trading company, distributor, and service provider specializing in industrial valves, pumps, pipes, tanks, and fittings. Recognized as a National Emphasis High-Tech Enterprise, the company operates a 66,000m² factory and employs 501-1000 people, including a dedicated team of engineers and technicians. Xuanda Industrial Group is a leading manufacturer of anti-corrosion products, offering OEM and ODM services. Their extensive product portfolio includes various types of lined and unlined valves such as ball, gate, butterfly, check, globe, diaphragm, and plug valves, with a specialization in lined valves for corrosive applications. They also produce industrial pumps, pipe fittings, storage tanks, and reaction kettles, including specialized items like high-temperature valves and sulfuric acid plant equipment. Products are manufactured to international standards including ISO 9001, ISO 14001, CE, API 6D, PED, and GB/T28001. With a strong focus on R&D and environmental protection technology, Xuanda Industrial Group serves diverse industries including oil and gas, petrochemical, chemical, metallurgy, power generation, foodstuff, paper making, and construction. The company exports to North America, South America, Eastern Europe, the Middle East, and Asia, and is expanding its production capacity with a new 56,000 square meter industrial plant to enhance automated and intelligent manufacturing.
Stainless Steel PTFE Lined Diaphragm Valve$192
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