Double Flanged Check Valve

Name: Double Flanged Check Valve
Brand: Types Of Industrial Valves Casting Supplier Manufacturer in China | THRIVEON Valve
Availability: InStock
Rating: 4.2 (73 reviews)

High-Performance Double Flanged Check Valve Supplier | Custom OEM | Fast Delivery

Reduce unplanned downtime & lower total cost of ownership. Engineered for water, oil & gas, and chemical applications — direct from China's integrated valve manufacturing base.

📩 Get Free Quote & Spec Sheet in 24h

✓ ISO 9001:2015 & CE Certified ✓ 4-6 Week Lead Time ✓ 100% Pressure Tested

Thriveon Valve manufacturing facility, Hebei China

📑 Contents

The Hidden Costs
Thriveon Solution
Technical Specs
Social Proof
FAQ
Reviews
Get a Quote

The Hidden Costs of Poor Pipeline Protection: Are You Risking Your Operation?

For procurement and operations leaders, a double flanged check valve is a small component with a massive impact. When it fails, it's not just a part replacement — it's cascading operational disaster. Here are the real risks you face with substandard suppliers:

Unplanned downtime costing $260k/hour. A backflow surge caused by a failed check valve can shut down an entire processing line. One hour of downtime often wipes out any "savings" from a cheap valve.
High rejection rates & field failures. Low-cost imports often use sub-grade materials (e.g., SG iron instead of ductile iron) leading to cracking, leakage, and costly emergency replacements.
Supply chain delays (16-24 weeks). Global lead times are still volatile. Relying on non-integrated suppliers means your project gets delayed waiting for standard flanged check valves.
Inconsistent dimensional tolerances. Valves that don't meet ASME B16.5 face-to-face dimensions cause installation nightmares on-site. You waste labor hours trying to force-mate flanges.
Hidden total cost of ownership (TCO). A valve priced 20% lower but requiring replacement in 2 years vs. 10 years is a bad investment. Your stakeholders want lifecycle cost, not initial price.

The bottom line: You need a partner who guarantees quality, delivery, and technical compliance — not just a low PO price.

The Thriveon Standard: Engineered for Reliability & Lowest TCO

Ningjin Thriveon Valve Co., Ltd. delivers industrial check valves designed for the toughest conditions. As a vertically integrated factory in Northern China, we control every step — from raw material casting to final pressure testing. Here's how we solve your pain points:

🏭 Powerful Factory Direct

Cut out the middlemen. You get factory-direct pricing with 4-6 week lead times for standard sizes. Our 15,000 sqm facility runs 3 production lines dedicated to flanged valves.

🛡️ Rigorous Quality Assurance

Every double flanged check valve is 100% hydrostatically tested. We provide Mill Test Reports (MTR) and NDT documentation. Traceability from melt to finished product.

⚙️ Full OEM/ODM Customization

Need a special face-to-face dimension? Exotic materials (Duplex, Super Duplex, Monel)? Our engineering team has 10+ years of experience designing custom flanged check valves for compressors, pumps, and offshore skids.

🌍 Cost-Effective Logistics

We partner with major freight forwarders to offer competitive shipping rates to the USA, Europe, and the Middle East. We manage the logistics so your landed cost stays predictable.

Technical Specifications: Double Flanged Check Valve (API 594 / BS 1868)

Parameter	Available Range
Design Standards	API 594, API 6D, BS 1868, ASME B16.5
Sizes (Diameter)	2" to 48" (DN50 – DN1200)
Pressure Ratings	Class 150 to Class 2500 (PN16 to PN420)
Body Materials	WCB (Carbon Steel), CF8M (Stainless 316), Ductile Iron, Cast Iron
Disc / Trim Materials	WCB, CF8M, Duplex SS, Nylon Coated, Bronze
Seat / Seal Materials	NBR, EPDM, Viton, PTFE, Metal-Seated (for high temp)
Temperature Range	-29°C to +350°C (depending on material selection)
End Connections	Flanged End (RF, FF, RTJ)

double flange check valve flanged check valve flange check valve

Custom designs for special end-to-end dimensions and dual-plate configurations are available upon request.

Frequently Asked Questions About Double Flanged Check Valves

1. What is a double flanged check valve used for?

It is used to prevent backflow in pipelines, protecting pumps, compressors, and other equipment. The flanged ends allow for secure bolting directly to mating flanges, making it ideal for high-pressure, high-temperature applications in water, oil, gas, and chemical systems.

2. What is the difference between a wafer and a flanged check valve?

A wafer check valve sits between two flanges and is held in place by bolts. A double flanged check valve has integral flanges that bolt directly to pipe flanges. Flanged types are easier to install and remove for maintenance, offer higher pressure ratings, and are more stable in critical service.

3. Do you provide OEM/ODM services for specialized dimensions or materials?

Yes. Our engineers have designed custom flanged check valves for Duplex, Super Duplex, and Monel materials. We can accommodate special face-to-face dimensions, NACE MR0175 compliance, and custom coating requirements (e.g., PTFE, nylon).

4. What are your typical lead times for bulk orders to the USA?

For standard sizes (2"-12", Class 150/300), our lead time is 4-6 weeks. For larger sizes or higher pressure classes, typical lead time is 8-12 weeks. We also offer expedited manufacturing for urgent projects.

5. How does Thriveon ensure valve quality before shipping?

We perform 100% hydrostatic shell and seat testing per API 598. Additionally, we offer optional NDT (X-ray, MPI), positive material identification (PMI), and dimensional inspection reports. We welcome third-party inspections (SGS, BV, Lloyds).

6. What payment terms and warranty do you offer for international buyers?

We offer flexible terms (T/T, L/C, Western Union). Our standard warranty is 18 months from shipment date against manufacturing defects. We also provide free standard samples for qualified projects.

7. Can you provide material certifications and test reports?

Absolutely. Each order includes Mill Test Reports (MTR) for body and trim materials. We also provide NDT reports, pressure test charts, and certificates of conformance (COC) as standard documentation.

Real Feedback from Global Operations Managers

John D. — Water Treatment Supervisor, USA

"We installed 18 double flanged check valves from Thriveon on our raw water intake lines. The fit and finish were perfect. No leaks, no issues. Flawless integration with our existing ASME flanges."

Ahmed Al-Rashid — Oil & Gas Contractor, UAE

"Competitive pricing is one thing, but the durability of these valves is outstanding. We used them on a high-pressure water injection project. They've been running 24/7 for 14 months without a single failure."

Marco V. — Manufacturing Engineer, Italy

"We needed a custom short face-to-face flanged check valve for a pump package. Thriveon's engineering team understood the requirement immediately. The OEM specs were perfect, and the delivery was faster than our local suppliers."

David H. — Chemical Processing Plant Manager, USA

"Corrosion resistance was our main concern. We ordered CF8M stainless steel flanged check valves with PTFE seats. The material certification matched exactly, and the valve bodies looked fantastic. Superior quality."

Sarah K. — Mining Operations Manager, Canada

"Thriveon is a reliable partner. They handle our large volume orders (600+ units per quarter) without missing deadlines. The consistent quality means we don't have to re-inspect every single piece."

⏳ Secure Your Supply Chain Before Global Lead Times Extend Further

Don't let valve failures or delayed shipments put your next project at risk. With Thriveon, you get a partner who ensures quality, speed, and competitive pricing.

📩 Request Free Quote & Sample 💬 Chat on WhatsApp

🚚 Risk-Free First Order: 100% QC Inspection | 18-Month Warranty | Money-Back Guarantee

📞 Contact our technical sales team today:

📧 info@thriveonvalve.com | 📞 +86-311-86935302

📍 South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China

🌐 https://www.thriveonvalves.com/contactus.html

✍️ James Albright

Senior Flow Control Applications Engineer with 22 years of experience in industrial pipeline integrity, valve material selection, and B2B supply chain optimization. James has consulted for Fortune 500 companies across the oil & gas, water, and chemical sectors, specializing in reducing customers' total cost of ownership through robust valve engineering. He is based in Hebei, China, and works closely with the Thriveon engineering team.