Discover a curated selection of certified relief valve manufacturers, specializing in hydraulic, pneumatic, and safety solutions for various industrial applications.
Reliable suppliers typically have a proven operating history, consistent export activity, relevant certifications, clear communication, and established quality control processes. Reviewing company information and past performance can help reduce sourcing risks.
Ningbo Weisenbl Machinery Manufacturing Co., Ltd.
🇨🇳 China
2010101-200 peopleManufacturer
OEM manufacturer
ODM manufacturer
Product customization
Low MOQ
Key customer
CHENGLI GROUP
Key market
🇯🇵 Japan
Description
Ningbo Weisenbl Machinery Manufacturing Co., Ltd. is a manufacturer of hydraulic components and mechanical accessories based in Ningbo, China. Established in 2010, the company specializes in the design, development, and manufacturing of a wide range of hydraulic valves, including overcenter valves, pilot operated check valves, throttle valves, control valves, diverter valves, solenoid change valves, check valves, sequence valves, ball valves, directional control valves, hydraulic locks, and relief valves. They also produce hydraulic power units. With over 20 years of professional manufacturing experience in hydraulic components, Ningbo Weisenbl Machinery Manufacturing Co., Ltd. operates with a strong independent processing capacity, producing over 80% of its accessories in-house. The company offers OEM and ODM services and is committed to strict quality control processes, holding ISO 9001 and ISO 14001 certifications. Their products are designed for diverse applications across various industries, including mining, industrial equipment, construction machinery, sanitation, marine equipment, and agricultural machinery. They serve major clients such as Zoomlion Heavy Industry Co., Ltd., Sany Heavy Industry Co., Ltd., and Chengli Group, and export to international markets including Japan, the United States, Europe, and Southeast Asia.
Shanghai Valve Factory Co., Ltd. is a century-old enterprise, established in 1921 and privatized in 2006, operating as a manufacturer and trading company based in Shanghai, China. With 1001 to 2000 employees, the company specializes in providing complete fluid control solutions and is a key enterprise and vice chairman of the China General Machinery and Industrial Association. They operate a factory and a dedicated Valve Testing and Research Center, with a new factory expanding in Huzhou. Shanghai Valve Factory Co., Ltd. offers a vast portfolio of approximately 6000 different types of high and medium pressure industrial valves, including gate valves, ball valves, butterfly valves, globe valves, check valves, safety valves, control valves, cryogenic valves, and specialized valves for nuclear and military applications. These valves are designed for a wide range of sizes (3/25" to 120"), pressure ratings (150Lb to 4000Lb), and temperatures (-196C to 750C), utilizing materials such as carbon steel, stainless steel, and alloy steel. They also provide various actuators including manual, motorized, pneumatic, and pneumatic-hydraulic drives. The company holds certifications such as ISO 9001 and CE, along with API, safety registration, and licenses for producing NPP valves. Their products are widely used in the nuclear, power, fossil energy, clean energy, oil and gas, chemical, shipbuilding, and marine engineering industries, serving customers like CNOOC and CNPC. Shanghai Valve Factory Co., Ltd. offers OEM and ODM services and exports globally, with an annual turnover between $10,000,000 US and $100,000,000 US.
Relief Valve (SFA-27C150C1)
Pressure Relief Valve (SFA-27C300Q)
Safety Relief Valve for Liquid (SFA-41C600C)
High Pressure Safety Valve (SFA-42C1500P1)
Steam Application Safety Valve for Boiler (SFA-44C600C1)
Pressure Safety Valve (SFA-48C150C1)
Conventional Spring Loaded Safety Valve (SFA-41C300C1)
Pilot Operated Safety Valve (SFA-46C1500R)
Shanghai Bestone Auto-Control Valve Co., Ltd
🇨🇳 China
2003301-500 peopleManufacturer/Trading Company
Established brand
Product customization
Low MOQ
OEM manufacturer
Shipments
2
Key customer
ASC PROCESS SYSTEMS
Key market
Asia
Review
5
Low Lift Pressure Relief Safety Valve Carbon Steel and Stainless Steel Spring Safe and Efficient Product$9
Factory Priced AQ702 AB712 Bronze Spring Loaded Safety Valve Low Lift Air Water Steam Pressure Relief Valve$14.5
Hot Sale C9004 PVC Electric Ball Valve 2/2 Way 24V 220V 110V AC DC Customizable OEM Support$30
C8004 Electric Motorized Ball Valve 2/2 Way 110v/220v/24v / Stainless Steel Carbon Steel Electric Motorized Ball Valve OEM$88
Manual Rising Stem Gate Valve Z41 Carbon Steel Flanged Type High Temperature Resistance$101
High Quality Thread ZCD 2/2 Way Pilot Operated Piston Solenoid Valve NC/NO for Low Temperature Medium$27.5
T256 Carbon Steel Electronic Electric Single Sealing Control Valve New Sleeve Regulating for Water Gas Oil OEM Supported$226
High Temperature Manual Ductile Iron DI Soft Sealing Worm Wheel Flange Wafer Butterfly Valve Model DF810 Center Lined$8
TF100 Adjustable Liquid Level Control Float Valve Fixed Type F100 for Media Base$23
Manual Stop Thermodynamic Steam Trap Valve Carbon Steel and Stainless Steel High Temperature Base Media CS19 CS49 CS69$22
C6004 Stainless Steel 2/2 Two-Way Electric Motorized Ball Valve with Open/Close & On/Off Functionality OEM Customizable$11
Z197-A Series 2 Way Pilot Operated Diaphragm Magnetic Holding Pulse Plastic Solenoid Valve$26
Zhejiang Zhonggong Valve Group Co., Ltd.
🇨🇳 China
1999501-1000 peopleManufacturer/Trading Company
High capacity factory
Established brand
Own brand
Patented technology
Shipments
12
Key customer
MEPSAN PETROL
Key market
Europe
Description
Zhejiang Zhonggong Valve Group Co., Ltd. is a leading manufacturer and trading company based in Wenzhou, China, specializing in the research, development, design, manufacturing, and sales of a comprehensive range of industrial valves. Established in 1999, the company operates with over 680 employees and boasts a significant operational footprint across Wenzhou, Lishui, and Qingtian, including a headquarter covering over 23,800 square meters. They offer OEM services and are equipped with over 300 sets of high-precision machinery and advanced testing equipment, ensuring robust R&D capabilities and stringent quality control. Their extensive product portfolio includes Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, Power Station Valves, API Valves, Forged Steel Valves, Bellows Valves, and Safety Valves, manufactured from various materials such as carbon steel, stainless steel, and alloy steel. These products adhere to international and national standards including API, ANSI, JIS, DIN, GB, and HG. Zhejiang Zhonggong Valve Group Co., Ltd. holds numerous certifications, including ISO 9001, ISO 14001, ISO 45001, CE, API 6D, and TS AI, underscoring their commitment to quality and safety. They are a trusted supplier to major clients like CNPC, Sinopec, and CNOOC, serving diverse industries such as coal chemical, power, pharmaceutical, and metallurgy, with a strong presence in both domestic and international markets.
Samco Engineering Inc. is a family-owned manufacturer, wholesaler, and distributor based in Sunrise, Florida, with over 50 years of industry experience. Established in 1994, the company has grown into a leading provider of aftermarket replacement parts for HVAC and refrigeration compressors. Operating with a dedicated team of up to 50 employees, Samco Engineering serves local, national, and international markets as a trusted supplier for major brands including Bitzer, Bock, Carrier, Copeland, Dorin, Frascold, McQuay, Trane, Vilter, and York.
Ono Valve Co., Ltd. is a Wenzhou, China-based manufacturer, trading company, and service provider specializing in the export of industrial valves and petroleum machinery. Established in 2005, the company operates with 51-100 employees and is comprised of ten leading valve and machine professional companies, managing their international trading affairs. Ono Valve Co., Ltd. offers a comprehensive range of over 2000 types of valves, including Gate Valves, Ball Valves, Butterfly Valves, Check Valves, Safety Valves, Globe Valves, Relief Valves, Slab Gate Valves, High Pressure Globe Valves, Mud Gate Valves, and Cylinder Valves, alongside hundreds of petroleum machineries and pipe fittings. They also provide customization services for non-standard products. The company holds certifications such as ISO 9001, ASME, GOST, API, EN, JIS, DIN, BS, GB, and ГOCT, ensuring high quality and adherence to international standards. Their products are available in sizes from 1/2 inch to 56 inches (DN15-DN1400), suitable for temperatures from -196℃ to 650℃, and pressure ratings from CLASS 150 to CLASS 2500 (PN16-PN420), utilizing materials like WCB (A105), LCB (LF2), C5 (F5), WC6 (F11), WC9 (F22), CF8 (F304), CF8M (F316), 4A (F51), 5A (F53), 6A (F55), CK3MCUN (F44), MONEL, and INCONEL (625, 825). With a strong technical guidance team and specialists in international trade, Ono Valve Co., Ltd. exports to diverse global markets across the Americas, Africa, Asia, and Europe, serving prominent clients such as Aramco, PDO, and PTT.
Three Way Ball valve
Forged Steel Flange Gate Valve
Wafer Lug Eccentric Butterfly Valve
Mud Gate Valve
Flange Eccentric Butterfly Valve
Flat Gate Valve
Lift Check Valve
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