Solve backflow, water hammer, and costly downtime with our API/ISO-compliant dual plate check valve. Built for engineers and procurement managers who demand reliability without the premium price tag.
✅ 10+ years OEM/ODM experience | ✅ ISO 9001 · CE · RoHS | ✅ 2,000+ valves shipped to US plants monthly
Every procurement manager knows the temptation: a lower upfront price tag. But in the field, the hidden costs of a substandard dual plate check valve can cripple your operation.
👉 If even one of these sounds familiar, keep reading. We've solved them for 40+ plants across the US, Saudi Arabia, and Europe.
Every valve is cast, machined, and tested in our own foundry. No outsourcing, no quality gambling. You get consistent wall thickness, precise disc alignment, and 100% pressure testing.
Need a special face‑to‑face length? Different spring material? Custom coating? Our engineers (15+ years experience) will adapt the flanged dual plate check valve to your exact spec. MOQ as low as 10 pieces.
We keep 50+ popular sizes (2"–24", Class 150/300) in semi‑finished stock. Final machining and testing take 5–7 days, then we ship via air or sea. Typical lead time: 3 weeks instead of 10.
Our valves meet ASME B16.5 (flange dimensions), API 594 (check valve design), and are CE marked. We provide material certs (EN 10204 3.1), pressure test reports, and origin certificates with every order.
Dual plate design minimizes water hammer. Stainless steel springs (AISI 301/316) ensure rapid closing. Body materials: WCB, CF8, CF8M, or Duplex. Working pressure up to 300 psi, temperature -20°C to 350°C.
You won't be passed to a junior sales rep. Our technical team answers within 2 hours (even during US night time via WhatsApp). We help you select the right valve, avoid costly mistakes, and keep your project on track.
| Parameter | Class 150 | Class 300 |
|---|---|---|
| Size range | 2″ – 24″ (DN50 – DN600) | 2″ – 24″ (DN50 – DN600) |
| Flange standard | ASME B16.5 RF / RTJ | ASME B16.5 RF / RTJ |
| Body material | WCB / CF8 / CF8M / Duplex | WCB / CF8 / CF8M / Duplex |
| Disc material | SS304 / SS316 / Duplex | SS304 / SS316 / Duplex |
| Spring material | AISI 301 / 316 (optional Hastelloy) | AISI 301 / 316 (optional Hastelloy) |
| Max working pressure | 285 psi (20 bar) | 740 psi (51 bar) |
| Temperature range | -20°C to 350°C | -20°C to 350°C |
| Design standard | API 594 / ASME B16.34 | API 594 / ASME B16.34 |
| Face-to-face | ASME B16.10 / API 594 | ASME B16.10 / API 594 |
| Test standard | API 598 / ISO 5208 | API 598 / ISO 5208 |
| Certificates | CE, ISO 9001, RoHS, Material cert 3.1 | CE, ISO 9001, RoHS, Material cert 3.1 |
double flanged dual plate check valve dual plate double flanged check valve dual plate check valve double flanged
📌 Need a different size or material? Tell us your spec – we’ll quote within 8 hours.
A dual plate check valve uses two spring-loaded plates that close quickly, minimizing water hammer and allowing installation in any orientation (horizontal, vertical, or angled). Swing checks rely on gravity and can cause pressure surges. Dual plates are lighter, more compact, and ideal for pump discharge lines and tight spaces.
Yes. Our dual plate design with spring-loaded discs works reliably in vertical (upward flow), horizontal, and angled installations. The spring ensures positive closing even at low flow rates, preventing backflow in any orientation.
All our flanged dual plate check valves are designed to ASME B16.5 (flange dimensions), API 594 (check valve design), and API 598 (testing). We provide ISO 9001:2015, CE/PED, RoHS, and material certificates per EN 10204 3.1. We can also perform NACE MR0175 for sour service upon request.
For standard sizes (2"–24", Class 150/300) we ship in 14–21 working days after order confirmation. Custom materials or special face-to-face dimensions may require 25–30 days. We offer air freight for urgent orders – delivery in 5–7 days.
Yes. We provide 1–2 sample valves at a reduced price, and we'll cover the shipping cost if you place a production order within 60 days. This lets you verify fit, pressure rating, and material quality risk-free.
Send us your pipe size, operating pressure, temperature, and media (fluid type). Our engineers will recommend the correct dual plate check valve within 24 hours. We can also review your P&ID to ensure the valve is properly specified.
We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for established US customers we can discuss net‑30 terms after the first order. All payments are secured via our bank accounts in China and Hong Kong.
Our sales and technical team is available via WhatsApp (+86-311-86935302) and email (info@thriveonvalve.com) from 8:00 AM – 10:00 PM EST. Most queries are answered within 1–2 hours. We also have a dedicated US rep for urgent site support.
"We installed six 12" Class 300 dual plate check valves from Thriveon on our crude oil transfer skid. The delivery was 3 weeks ahead of schedule, and every valve passed hydrotest on the first try. I've been in this industry for 22 years—this supplier is the real deal."
"I specified Thriveon's dual plate check valves for a hospital HVAC upgrade. The engineering team helped me confirm the exact face-to-face dimensions and spring cracking pressure. The valves are compact, quiet, and the price was 22% under the next bid. Specifying them again on my next project."
"We were skeptical about importing valves from China due to quality concerns. Thriveon changed our minds. They provided video inspections during manufacturing, full material certs, and the valves performed flawlessly in our pump station. We've saved 31% compared to our previous US supplier."
"I've purchased over 200 dual plate check valves from Thriveon in the last 18 months. The quality is consistent, the paperwork is always accurate, and their team responds to RFQs within hours. They've become our primary check valve supplier."
"We needed a custom alloy 20 dual plate check valve for a corrosive sulfuric acid line. Thriveon's engineering team designed it, cast it, and delivered within 28 days. The valve has been in service for 8 months with zero issues. Excellent technical support throughout."
No pushy sales. No hidden fees. Just a detailed quote, technical recommendation, and delivery timeline tailored to your project.
All product data, customer quotes, and performance figures are based on actual project records. Individual results may vary depending on application conditions. Contact us for a detailed application review.
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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 40+ Plants Across the US, Saudi Arabia, South Africa & Italy
"We replaced a competitor's valve that failed after 5 months. The Thriveon dual plate check valve has been running for 14 months without any leak. Saved us $9k in emergency repairs."
✔ 14 months trouble-free · $9k saved"We needed 18 valves in 3 weeks for a critical skid. Thriveon delivered in 19 days, with full material certs and NACE compliance. The client accepted without a single query."
✔ 19-day delivery · 100% acceptance"The price was 18% lower than our previous supplier, but the quality is actually better. Casting finish is smooth, disc seal is tight. We've ordered another 30 pieces."
✔ 18% cost reduction · reorder within 2 months