Industrial Ball Valve Manufacturer & Supplier in China – J-VALVES
J-VALVES is a China ball valve manufacturer and industrial ball valve supplier of API 6D trunnion mounted, floating, DBB, fully welded and cryogenic ball valves. Our valves serve oil & gas pipelines, LNG terminals, offshore topside, and general industrial plants.
We manufacture ball valves from 1/2" to 56" (DN15–DN1400), Class 150 to 2500 (PN16–PN420), in WCB carbon steel, CF8M stainless steel, duplex and nickel alloys. Soft-seated valves suit clean media and bubble-tight shutoff; metal-seated valves are selected for high temperature or abrasive service. All designs follow API 6D and ASME B16.34, with fire-safe certification to API 607.
J-VALVES operates two manufacturing plants in Wenzhou and Lishui, China. Both plants are certified to ISO 9001, CE and API 6D, and supports third-party inspection with full documentation - material certificates, pressure test reports and witnessed testing. As a China valve factory, we also offer OEM and private-label manufacturing for EPC and trading partners. Request a quotation and our engineers will match the right valve to your service condition.
Efficient Application of Trunnion Ball Valves in Industrial Fluid Control
Fire Safety Certification: Design Standards for J-VALVES Ball Valves - A Detailed Explanation of API 607/ISO 10497 Testing Requirements
Ball Valve Standards in The Petrochemical Industry: Key Requirements of API6D And ASME B16.34
J-VALVES operates two manufacturing plants in Wenzhou and Lishui, China. Both plants are certified to ISO 9001, ISO 14001 and ISO 45001, and hold API 6D, API 600 and API 602 monogram authorization, together with CE (PED 2014/68/EU), SIL functional safety and EAC certification, with quality reports audited by SGS. These credentials qualify our valves for oil & gas, offshore and LNG projects requiring third-party verified quality systems.
ISO 9001 / ISO 14001 / ISO 45001 certified quality, environmental and HSE management systems
API 6D, API 600 and API 602 monogram authorization - pipeline, gate and forged small-bore valves
CE (PED 2014/68/EU), SIL functional safety and EAC approval for EU, offshore and CIS projects
Floating Ball Valves
• Oil & gas pipelines - trunnion and DBB valves for reliable section isolation and pigging service
• LNG & cryogenic plants - ultra-low temperature ball valves with extended bonnet, rated to -196°C
• Offshore & FPSO topside - fire-safe, NACE-compliant valves for process and utility systems
• Petrochemical & refining - metal-seated and fire-safe designs for high temperature duty
• Water & general industry - floating ball valves for cost-efficient on/off service
Led by an engineer-led sales team, J-VALVES supports FPSO, offshore topside, EPC and OEM valve programs with API 6D ball valves manufactured in our Wenzhou factory - from specification review to third-party witnessed testing.
Inconel surfacing welding
Both Inconel 625 and Inconel 825 are nickel-based superalloys. In industrial projects, the selection of materials is as important as the design. These two alloys are widely used in multiple fields due to their excellent corrosion resistance and high-temperature.
Production Equipment
J-VALVES is equipped with advanced production facilities and modern processing centers. High-precision CNC machine tools enable efficient and precise processing of components. Inspection equipment strictly controls quality, ensuring product performance and reliability.
Product Specification Requirements
When assembling ball valves, inspect, clean, and install components in order. For the pressure test, ensure assembly completion and equipment normalcy. Conduct shell strength test by raising pressure to 1.5 times nominal pressure and hold for 5 -10 minutes.
Quality Control
Company is in possession of its own physicochemical laboratory and is furnished with comprehensive inspection equipment. Regarding quality control of products, we give it the highest priority. Quality is the fundamental for the survival of an enterprise.
Technology
J-VALVES features precise 3D design and innovative product design, meeting the demands of multiple scenarios. With strong technical strength, it leads the industry trend and provides high-quality solutions for global customers.
Customer Market
J-VALVES valves, with their high performance ball valves, are widely used in fields such as oil and gas, Marine engineering, and LNG ships, providing reliable support for the energy industry.
About J-VALVES – API 6D Ball Valve Manufacturer & Supplier in China
International Oil & Gas Valve Solutions Expert – J-VALVES manufactures API 6D trunnion mounted, DBB, floating, cryogenic and fully welded ball valves from 1/2" to 56" for FPSO, offshore, LNG and EPC / OEM projects worldwide. Contact our engineers for a factory quote.
Factory Area
Years of Experience
Annual Capacity
FAQ
Contact J-VALVES – Get a Factory Quote
Send us your valve type, size, pressure class and quantity - our engineers will reply with a quotation within 24 hours. For urgent projects, call or WhatsApp +86-13600648865 or email info@j-valves.com.