Conventional designs cause 12–18% more pressure loss, increasing pump energy costs by up to $2,800/year per valve in a 6-inch line.

43% of importers report late deliveries from Asian suppliers. Your project schedule shouldn't depend on a factory that misses deadlines.

Porosity, misaligned flanges, and off-spec disc materials cause leakage within 18 months. You need dual plate double flanged check valve that passes API 598 tightness tests every time.

Distributors add 25–40% to factory prices. Why pay for a layer that doesn't engineer or manufacture anything?

When a valve fails, most suppliers disappear. You need a partner who answers the phone — from engineering support to replacement parts.

Powerful Factory — Direct Control

double flanged dual plate check valve dual plate check valve double flanged flanged dual plate check valve

Own casting line, CNC machining center, and automated test bench. 15,000 sqm facility with 200+ workers. Every valve is cast, machined, assembled, and tested in-house.

Zero-Leak Guarantee

Every dual plate double flanged check valve passes API 598 hydrostatic shell test (1.5x rated pressure) and seat test. Bubble-tight shut-off certified.

OEM/ODM Design Flexibility

Custom flanges (ASME B16.5 Class 150/300/600), disc materials (SS316, Duplex, Super Duplex), and spring options. Lead time for custom orders: 25–35 days.

High-Speed Delivery

Standard sizes (2"–24") ship in 15–20 days from order. 40-ft container loads ready for FOB Tianjin, with real-time tracking shared via email.

Full Certification Package

ISO 9001:2015, CE/PED, API 598 test report, material certificates (EN 10204 3.1). Independent third-party inspections accepted (SGS, BV, TÜV).

30–50% Cost Advantage

Factory-direct pricing eliminates distributor layers. Typical savings vs. US/EU brands: $120–$680 per valve depending on size and pressure class.

"We ordered 186 pcs of 6" Class 150 dual plate double flanged check valves for a Texas water treatment plant. Thriveon delivered 3 days early — and every valve passed our API 598 test on the first try. The pressure drop was actually 38% lower than our previous supplier."

David R. Procurement Manager, Texas Water Infrastructure

"After switching to Thriveon's dual plate check valves, our pump maintenance intervals doubled. The OEM custom spring setting they designed for our 10-inch crude oil line eliminated slamming entirely. Engineering team was responsive even at 10 PM their time."

Ahmed S. Technical Director, Gulf Oil & Gas

"We compared quotes from four Chinese valve suppliers. Thriveon wasn't the cheapest, but their engineering support and willingness to do a factory audit won us over. We've now placed 3 repeat orders. Quality is consistent — that's rare."

Maria L. Supply Chain Manager, Italy Chemical Process

Q: What's the difference between a dual plate check valve and a swing check valve?

A: A dual plate double flanged check valve uses two spring-loaded plates that open and close quickly, reducing water hammer and pressure drop. Swing checks rely on a single disc that swings open — they are bulkier, slower to close, and cause higher pressure loss. Dual plate designs are preferred for horizontal and vertical installations where space and energy efficiency matter.

Q: Can you supply dual plate double flanged check valves with Class 300 flanges? How about custom drilling?

A: Absolutely. We manufacture Class 150, 300, 600, and 900 in ASME B16.5 (up to 24") and B16.47 Series A/B. Custom bolt hole patterns and facing finishes (RF, RTJ, FF) are available. Just send your drawing or flange specification with your inquiry.

Q: What is the typical lead time for a 10-inch dual plate double flanged check valve?

A: For standard sizes 2"–24" in WCB/SS316 with EPDM seat, lead time is 15–20 working days from order confirmation. For larger sizes (26"–48") or special materials (Duplex, Super Duplex), expect 25–35 days. We ship via FOB Tianjin, CIF, or DDP depending on your terms.

Q: Do you provide free samples for testing?

A: Yes. For qualified corporate buyers, we offer 1–2 free samples (freight collect) to evaluate fit, finish, and performance. We also support paid samples with full credit toward your first bulk order. Contact our sales team to arrange.

Q: What payment methods do you accept for US buyers?

A: We accept T/T bank transfer (30% deposit + 70% against BL copy), L/C at sight (preferred for large orders), and Alibaba Trade Assurance for qualified buyers. For first-time orders under $5,000, PayPal is also accepted.

Q: How do you handle after-sales support and warranty?

A: Every dual plate double flanged check valve comes with a 12-month warranty against manufacturing defects. We have English-speaking technical support available via email (response within 4 hours) and WhatsApp (+86-311-86935302). Replacement parts are shipped within 48 hours for warranty claims.

Q: Can these valves be installed vertically?

A: Yes, our dual plate design can be installed in horizontal, vertical (flow upward), and inclined piping. The spring-loaded plates close automatically by spring force and reverse flow, so no gravity dependency. For vertical down-flow installations, we recommend a spring-assisted model — just specify when ordering.

"We've been using Thriveon's dual plate check valves for 2 years across three plants. Zero failures. The price is 40% lower than what we paid before, and the quality is actually better. They even helped us redesign the spring for a high-vibration application. Highly recommended."

James K. Operations Manager, Pennsylvania Chemicals

"The OEM service is outstanding. We needed a custom 24-inch dual plate double flanged check valve with Hastelloy C-276 trim for a seawater injection project. Thriveon delivered in 30 days — 3 weeks faster than our EU supplier. Fit and finish were perfect."

Robert C. Project Engineer, Offshore Oil & Gas

"I was skeptical about importing valves from China, but Thriveon's team provided full material certs, video of hydro testing, and even arranged a third-party inspection. Communication was clear and prompt. The valves are installed and working perfectly. Will order again."

Tom B. Procurement Lead, Florida Water Utility