Eliminate backflow and system downtime with our ASME-rated flanged check valves. Designed for water, oil, gas, and chemical lines – trusted by engineers in 20+ countries.
Get Free Quote in 24h →✔ Free samples available ✔ OEM/ODM support ✔ Fast global shipping
Stainless steel flanged check valves are critical for preventing reverse flow, protecting pumps and compressors. Yet many buyers face these recurring challenges:
These pain points cost your facility thousands in repair hours and lost production. But you don’t have to settle.
Backed by a powerful factory in Northern China and over a decade of engineering expertise, our flanged check valves deliver reliability and value that major brands can’t match.
Request a quote and compare our performance vs. your current supplier.
| Parameter | Available Options |
|---|---|
| Size Range | 1/2″ – 24″ (DN15 – DN600) |
| Pressure Class | Class 150, 300, 600, 900 (PN16 – PN160) |
| Body Material | CF8 (304), CF8M (316), 316L, 904L, Duplex (F51/F53) |
| Disc Material | SS304/316, with PTFE or metal seat |
| End Connection | Flanged (RF, FF, RTJ) – ASME B16.5 / EN 1092-1 |
| Design Standard | API 6D, ASME B16.34, BS 1868 |
| Temperature Range | -196°C to +800°C (depending on material) |
| Operation | Automatic (swing check, lift check, tilting disc) |
| Test Standard | API 598 / ISO 5208 – Rate A |
stainless steel flange check valve stainless steel check valve flanged stainless steel check valve
All dimensions and tolerances strictly follow ASME B16.10 and B16.5. Ask for our full datasheet and drawing →
“We switched to Thriveon flanged check valves for our Texas water plant. Price was 35% lower than our previous supplier, and delivery took only 3 weeks. Three years in service – zero failures.”
— Marc L., Operations Manager, ClearWater Infrastructure, USA
“Their 316SS Class 300 check valves exceeded our hydraulic test expectations. The factory test report gave us full confidence. Highly recommend for critical chemical services.”
— Dr. Ahmed R., Senior Process Engineer, SABIC
Certifications: ISO 9001:2015, CE/PED (2014/68/EU), API 6D, ABS, DNV-GL type approval (available upon request).
A swing check valve uses a hinged disc that swings open with forward flow and closes when flow reverses. It’s ideal for horizontal lines and low-pressure drop applications. A lift check valve has a disc that lifts perpendicularly; it’s better for vertical lines and high-pressure services. We offer both types in stainless steel flanged configuration.
Yes. We produce lockable flanged check valves for maintenance safety. Options include padlock, chain lock, or manual locking handle. Specify your requirement when ordering.
Every valve undergoes pressure testing (shell, seat, backseat) per API 598. We also offer optional third-party inspection (SGS, BV, Lloyds). Material certificates and test reports are provided with each shipment.
Standard lead time is 25–30 days for sizes up to 12″. Shipping cost to US West Coast (LCL) averages $200–$400 per cubic meter, depending on consolidation. We can arrange DDP terms for hassle-free delivery.
Absolutely. We can cast your logo, pressure rating, and specification plate. Minimum order quantity is flexible for long-term partners.
We accept T/T (30% deposit, 70% balance before shipment), irrevocable L/C at sight, and for repeat customers, net 30 days (upon credit approval).
Yes. We offer free samples for standard sizes (DN50-DN100) with the customer paying shipping. Contact us to arrange a trial order.
“We replaced a batch of costly German check valves with Thriveon’s 8″ 300# 316L swing checks. Performance is identical, but our cost dropped by 40%. Their technical team answered all our questions within hours.”
“I was initially worried about quality from an offshore supplier. After receiving the factory inspection video and third-party test report, I was convinced. Installed six months ago – no leaks, no issues.”
“Thriveon provided custom face-to-face dimensions for an old skid retrofit. They even matched the paint color to our existing line. Fast turnaround and excellent communication.”
“We ordered 200 pieces of 2″ 150# flanged check valves for a fire safety project in Dubai. They arrived 10 days early and all passed pressure tests. Will definitely reorder.”
“They helped us select the correct material for a high-temp sulfuric acid line. The duplex check valve has been performing flawlessly for over a year. Knowledgeable and honest.”
Written by Henry Zhao
Senior Valve Engineer & Industry Analyst – 18 years in flow control. Henry started his career at a state-owned valve research institute in China and has since supervised the design and testing of over 50,000 industrial valves for global clients. He now leads technical support at Ningjin Thriveon Valve Co., Ltd., helping international buyers find reliable, cost-effective solutions.
Request your personalized quote today and receive a free valve sizing recommendation.
Or call/WhatsApp: +86-311-86935302 | Email: info@thriveonvalve.com
Ningjin Thriveon Valve Co., Ltd. – South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei, China
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+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
