Cut valve procurement costs by 30% • Lead times as low as 4 weeks • Full OEM/ODM capability
⚙️ 50,000 ft² manufacturing base – Ningjin, China
👉 You need a partner that delivers certified quality, fast lead times, and fair pricing — not just a product.
Our double non return valve (dual plate check valve) is designed by engineers, for engineers. It meets the rigorous demands of water, wastewater, power, and industrial processing plants across North America.
Short disc stroke & spring-assisted closure prevent surge damage. Extends pump & pipeline life.
Dimensions per ASME B16.10, flanges per B16.5/B16.47. Drop-in replacement for major brands.
Every valve undergoes shell & seat test per API 598. Full material traceability (EN 10204 3.1).
4–6 weeks for standard sizes (2″–24″). Stock sizes (2″–12″) ship in 2 weeks. Express air freight available.
Duplex, Super Duplex, Inconel, Monel. Extended bonnets, NACE MR0175, low-temp carbon steel.
Factory-direct pricing & integrated supply chain (casting → machining → assembly). No middleman markup.
| Parameter | Available Options |
|---|---|
| Size | 2″ – 48″ (DN50 – DN1200) |
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Body Material | WCB, WCC, LCB, CF8 (304), CF8M (316), CD3MN (Duplex), ASTM A351 |
| Disc / Seat Material | SS304, SS316, SS316L, Duplex, Stellite overlay (optional) |
| End Connection | Wafer (short/long pattern), Lug, Flanged (RF / RTJ) |
| Design Standard | API 6D / ISO 17292 / ASME B16.34 |
| Test Standard | API 598 (100% hydrostatic shell & seat test) |
double acting valve double backflow valve gas non return valve
A double non return valve uses two spring-loaded plates that open when flow is forward and close quickly when flow stops or reverses. It prevents backflow, reduces water hammer, and is much lighter and more compact than a traditional swing check valve.
We offer WCB (carbon steel), SS304, SS316, SS316L, Duplex (CD3MN), Super Duplex, and monel. Seats can be PTFE, nylon, or metal (stellite overlay). All materials come with EN 10204 3.1 certification.
Absolutely. We have an experienced engineering team that can adapt dimensions, pressure ratings, materials, and end connections to match your specific requirements. Minimum order quantities are flexible.
Standard lead time is 4–6 weeks. Stock sizes (2″–12″) can ship in 2 weeks. Shipping cost to US ports (Long Beach, Houston, Newark) is very competitive; we can provide a detailed CIF or DDP quote based on your order.
Our factory is ISO 9001:2015 certified. We can also certify valves to PED/CE, API 6D, NACE MR0175, and ATEX when required. Every valve is pressure tested per API 598.
We offer a 2-year warranty against manufacturing defects. Our US-friendly support team (email / WhatsApp) responds within 4 hours. We also provide technical documentation, installation guides, and spare parts support.
Yes, we provide free samples for standard sizes. You just pay shipping. This allows you to test fit, material quality, and performance under your actual operating conditions.
Simply contact us via the form below, email info@thriveonvalve.com, or call/WhatsApp +86-311-86935302. Provide your size, pressure class, material, and quantity, and we will send a quotation within 24 hours.
“Ordered 30 units of 8″ class 300 for a wastewater upgrade. The quality exceeded our expectations. On-site testing was perfect.”
“I was impressed by the technical support. They helped me select the right duplex material for a corrosive environment. Valves arrived in 5 weeks.”
“Excellent value for money. We compared quotes from major OEMs and Thriveon gave us a 35% savings with better delivery. Will order again.”
Limited Time: Free sample kit for qualified projects + priority OEM engineering slot. No minimum quantity for standard sizes.
📩 Get My Free Quote in 24h✅ 100% API 598 tested | ✅ ISO 9001 factory | ✅ 2-year warranty | ✅ US-friendly logistics
Nikolas has worked with over 200 industrial plants across the US, Europe, and the Middle East, helping them optimize valve specifications, reduce lead times, and lower total cost of ownership. He leads the technical team at Ningjin Thriveon Valve Co., Ltd.
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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 
🤝 Trusted by 50+ Industrial Customers Worldwide
“Thriveon’s dual plate check valves saved us 25% compared to domestic bids. Delivery was 5 weeks, and the quality passed our third-party inspection with flying colors.”
“We needed 16″ SS316 valves with NACE compliance. Thriveon delivered exactly what we specified. Great communication and fast turnaround.”
“I was skeptical about importing, but their US support team made it easy. The valves fit perfectly into our existing system. Highly recommended.”