Engineered to ASSE 1015 standards · Factory-direct pricing · Eliminate system contamination & cut procurement costs by up to 40%
Get Free Samples & OEM Specs →Local codes (UPC, IPC, ASSE 1015) are strict. One cross-connection failure can contaminate potable water, leading to fines, lawsuits, and reputational damage. Off-brand assemblies often fail certification audits.
Traditional supply chains add 30–50% margin. If you're buying dual check valve assemblies through middlemen, you're overpaying without getting better quality or warranty support.
Low-quality internals, weak springs, and poor machining cause chatter, water hammer, and eventual valve seizure. Unplanned downtime in a municipal or industrial plant is expensive.
Waiting 10+ weeks for a simple assembly? Getting ignored after placing a PO? Inefficient suppliers waste your project timeline and tie up your working capital.
Result: Overspending, compliance anxiety, and system inefficiency. You deserve a better partner.
Ningjin Thriveon Valve Co., Ltd. combines 20+ years of foundry expertise with a modern, export-focused factory. We deliver dual check valve assemblies that meet the strictest international standards — at direct-from-manufacturer pricing.
Own your supply chain. We design, cast, machine, assemble, and test under one roof in Hebei, China. No markups, no surprises.
Custom branding, packaging, end connections (NPT/BSP/SW), and materials (lead-free brass, SS316, ductile iron). Your spec, our precision.
Every dual check valve assembly undergoes hydrostatic and pneumatic testing. We provide certified test reports with each batch.
We handle DDP, FOB, CIF — including customs clearance. Typical sea freight to US West Coast: 18–25 days. Air express available.
| Parameter | Standard Configuration | Custom Options |
|---|---|---|
| Body Material | Lead-Free Brass (C46500) | SS316, Ductile Iron, Bronze |
| End Connections | Threaded NPT ½" – 2" | SW, BSP, Flanged (ANSI 150#) |
| Pressure Rating | 200 WOG (600 PSI) | Up to 400 WOG |
| Temperature Range | –20°F to 250°F | High-temp version available |
| Spring Material | Stainless Steel 302 | SS316, Hastelloy |
| Seals / Elastomers | NBR (Buna-N) | EPDM, Viton, Silicone |
| Standards Met | ASSE 1015, CSA B64, UL, ASTM | AWWA, FM, API, CE |
| Certifications | ISO 9001:2015, RoHS | NSF 61, FDA, WRAS |
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A dual check valve assembly incorporates two independent spring-loaded check valves in a single body. This provides redundant backflow protection, meaning if the first valve fails to seal, the second backup valve prevents contamination. It is required by most plumbing codes (ASSE 1015) for high-hazard cross-connections.
Absolutely. We offer full OEM/ODM services, including custom casting of your logo, branded packaging, and private label documentation. Minimum order quantities are flexible. Send us your artwork and we’ll handle the rest.
Our standard dual check valve assembly is certified to ASSE 1015 and CSA B64. Selected models are UL listed and NSF/ANSI 61 certified for potable water. We can provide certification documentation for your local code compliance inspection.
For standard sizes (½" – 2" NPT, lead-free brass), lead time is 15–25 working days after confirmation. Larger orders or custom alloys may require 30–35 days. We hold inventory for popular models — express shipping available.
Consider three factors: 1) End connection size and type (NPT, BSP, flanged). 2) Pressure and temperature of your system. 3) Fluid compatibility (potable water, wastewater, glycol, etc.). Our engineering team can review your system specs within 24 hours — just contact us.
We accept T/T (wire transfer), L/C, and for established relationships, net 30/60 terms. Delivery terms: FOB (Tianjin), CIF (your port), or DDP (door-to-door, including duties). We are flexible to match your procurement policy.
All dual check valve assemblies carry a 5-year warranty against manufacturing defects. We provide free technical support, replacement parts, and on-site troubleshooting guidance. Our English-speaking team responds within 12 hours.
Ethan has dedicated his career to backflow prevention and industrial valve design. He holds a B.S. in Mechanical Engineering from Tianjin University and has directly assisted over 80 municipalities and OEMs in North America, Europe, and the Middle East with code-compliant, cost-efficient valve solutions. His technical articles have been featured in Valve Magazine and Pumps & Systems.
Get factory-direct pricing, full compliance packages, and lead times that keep your project on schedule.
📞 Get a Custom Quote in 24 HoursRisk-free offer: Request free samples and a 15% discount on your first bulk order. DDP terms available — no surprise duties.
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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 
