Eliminate costly adapters and system redesigns. Our metric check valves (DIN, BS, JIS) are designed for direct integration into international pipelines, offering certified quality, OEM flexibility, and fast global shipping to the USA, Europe, and the Middle East.
Target Audience: Procurement Managers, Pipeline Engineers, and Plant Operators seeking certified, high-performance non-return valves.
⚙️ Request a Custom Quote & Free CAD Drawing✓ Free samples available for qualified projects ✓ 18-month warranty
At Ningjin Thriveon Valve Co., Ltd., we've addressed these exact pain points by combining a powerful Northern China foundry base with a decade of international export experience. We don't just sell valves; we provide a tailored flow control solution.
Our core range follows strict DIN 3202 (F4, F6), BS 1868, and EN 1092-1 standards. We also offer JIS B2071 valves, ensuring seamless retrofitting or new system integration without dimensional clashes.
We control the entire process from raw material to finished casting. Advanced spectrometers and UT/MT/RT testing ensure Class 1 quality. We reject internal defects before they become your problem.
Need a specific facing length, a special coating (FBE, Nylon 11), or a customized spring load? Our senior engineers (10+ years experience) provide rapid OEM/ODM design and prototyping support.
Strategically located near Tianjin Port, we maintain a rolling stock of standard sizes (DN50-DN300). Typical lead times: 25-35 days for bulk orders; 7-10 days for urgent stock items.
| Valve Type | Size Range (DN) | Pressure Rating | Materials (Body/Seat) | Face-to-Face Standard |
|---|---|---|---|---|
| Wafer Check Valve (Spring Loaded) | DN50 - DN600 | PN10 / PN16 / PN25 / PN40 | WCB, CF8, CF8M / SS304, PTFE | DIN 3202 F4/F6 |
| Swing Check Valve (Flanged End) | DN50 - DN300 | PN16 / Class 150 | Cast Iron, Ductile Iron, WCB / Bronze | BS 1868 / DIN 3202 |
| Piston Check Valve | DN15 - DN200 | PN40 / PN100 / Class 150-1500 | A216 WCB, A351 CF8M / Stellite | API 602 / DIN 3202 |
| Silent Check Valve (Spring Loaded) | DN25 - DN250 | PN10 / PN16 | WCB, Ductile Iron / NBR, EPDM | DIN 3202 F5 |
metric butterfly valves pressure check valves small check valves
Note: Custom lengths, dual-plate designs, and specific flange drillings (DIN 2501, ANSI 125/150, JIS 10K) are available upon request.
Challenge: A major EPC contractor required 400 pcs of metric check valves (DN200 PN40) with full material traceability and anti-hydrogen sulfide (H2S) capability for a new gas processing facility.
Solution: Thriveon supplied flanged swing check valves with a WCB body and Inconel 718 spring, fully machined to DIN 3202 F6 standards. We provided a 3.2 mm corrosion allowance and certified NACE MR0175 compliance.
Result: The valves passed third-party inspection (SGS) with zero NCRs. On-time delivery was achieved within 28 days, helping the client avoid a costly project standstill.
Certifications & Compliance:
"We were struggling with lead times from European suppliers. Thriveon's stock of DN80 PN16 metric wafer check valves saved us 6 weeks. The quality was verified by our own inspector — excellent machining and clean casting."
— Marcus R., Senior Procurement Manager, Water Utilities (Italy)"Their engineering team designed a custom dual-plate check valve for our ammonia plant. The OEM support was exceptional — they understood our requirements immediately and provided full stress analysis reports."
— Ahmed S., Project Director, Petrochemical Plant (South Africa)"As a US distributor, our clients demand reliability. Thriveon's carbon steel metric check valves have a failure rate of less than 0.2% in the field. That's a level of trust we can build a business on."
— David Thompson, VP Supply Chain, Industrial Flow Solutions (USA)⭐⭐⭐⭐⭐
"Excellent quality on the DN400 PN10 wafer checks. The rubber lining was flawless and the disc movement was smooth. Shipping was well-packed and arrived faster than expected. Will definitely order again."
— Karl H., Mechanical Engineer, Municipal Water Project (Germany)⭐⭐⭐⭐⭐
"We requested a custom JIS 10K swing check valve with a special bronze trim. Thriveon delivered exactly what we needed in just 21 days. The price was 30% more competitive than our previous Japanese supplier."
— Takashi M., Operations Manager, Shipbuilding (Singapore)⭐⭐⭐⭐⭐
"Very professional team. They provided immediate technical support via WhatsApp. The 18-month warranty gave our finance team confidence. A truly reliable partner for metric valve supply."
— Luis R., Founder, Pipeline Solutions (UAE)A: While similar in nominal pressure, they are not interchangeable. Class 150 (ASME B16.5) has a specific pressure-temperature rating and different flange dimensions (drilling, bolt holes) than PN16 (EN 1092-1). Our metric valves strictly follow DIN/EN flange dimensions, ensuring a perfect seal in metric piping systems. Using an ASME valve in a PN16 system often requires an intermediate flange adapter.
A: Absolutely. We specialize in OEM/ODM manufacturing. We can cast your logo, apply your specified paint color (RAL codes), and provide custom crating and documentation. This is a core part of our service for US and European distributors looking to expand their product line without capital investment in new tooling.
A: Quality is embedded from the start. We use a rigorous 3-step inspection process: 1) Chemical composition analysis via spectrometer on every heat; 2) NDT (UT, MT, or X-ray) on pressure-containing parts as per standards; 3) 100% hydrostatic shell and seat test. We can also facilitate third-party inspections (SGS, BV, Lloyds) at your request.
A: Shipping costs depend on weight and volume. For a standard FCL (20ft or 40ft container), sea freight to the US West Coast (Long Beach, Los Angeles) is generally the most cost-effective. We can consolidate small orders via LCL shipping. Please contact us with your specific DN size and quantity, and we'll provide a CFR or CIF quote. We have partners like Maersk and MSC for reliable transit times.
A: Our MOQ for standard material (WCB / Ductile Iron) sizes DN50-DN300 is 10 pieces per size. For stainless steel (CF8/CF8M) or special alloys (e.g., Hastelloy, 316L), the MOQ is 5-10 pieces depending on the specification. We do keep stock for popular sizes, allowing lower MOQs for immediate dispatch.
A: Yes, we support qualification samples. For standard sizes in stock (e.g., DN50 PN16 Wafer Check), we can provide one sample free of charge. The buyer is responsible for shipping costs. This allows your engineering team to verify dimensions, material quality, and performance before committing to a production order.
A: We accept standard international trade terms: T/T (Telegraphic Transfer, 30% deposit / 70% against BL copy), L/C at sight (Irrevocable Letter of Credit via major banks), and for established clients, DP (Documents against Payment). We are compliant with US and EU trade regulations.
Don't let incompatible dimensions or slow lead times derail your next project. Take the next step towards a reliable, cost-effective partnership.
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Email: info@thriveonvalve.com | Address: South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei, China
With over 14 years of experience in the valve manufacturing industry, David has overseen the design and production of over 1 million industrial valves for export to 40+ countries. He is a certified ISO 9001 internal auditor and an expert in international valve standards (API, ASME, DIN, BS, JIS). David is dedicated to helping global procurement professionals navigate the complexities of sourcing high-quality industrial valves from China with full traceability and compliance.
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Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
