Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Valve > Check Valve > 304 Stainless Steel High Temp Check Valve 425℃, Metal-to-Metal Seal, Flanged, BV Certified
304 Stainless Steel High Temp Check Valve 425℃, Metal-to-Metal Seal, Flanged, BV Certified
Product Spotlights
This 304 stainless steel high temp check valve (425°C) features a metal-to-metal seal and flanged connections, BV certified. Its all-metal construction ensures zero leakage at extreme temperatures, reducing maintenance. Suitable for steam, oil, gas, and chemical applications. Customizable sizes (DN15-DN600) and pressure ratings (PN16-PN100). Backed by Shanghai Zhibang Valve (established 2016, ISO9001, US$1M+ annual exports).
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, 304 Stainless Steel
Application:
Other, High temperature steam
Temperature Rating:
425℃ (797°F)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
Zhibang Marine Cryogenic Check Valve, Working Temp -196℃, 316SS Body, DN15-DN100, PN1.6-4.0MPa, Flanged End, LR ApprovedNegotiableMOQ: 1 Unit -
Low Temp Check Valve -196 Deg C, Marine Grade, 316L SS, Flanged Ends, DN15-DN100, PN16-PN40, Standard Compliant, LR ApprovedNegotiableMOQ: 1 Unit
-
Cryogenic Check Valve -196℃ for Marine, Stainless Steel, Extended Bonnet, Flanged, DN15-DN100, PN1.6-4.0MPa, Mill Test Report IncludedNegotiableMOQ: 1 Unit
-
Offshore Marine Check Valve for Low Temp -196℃, Suitable for Shipboard Cryogenic Systems, SS316, Extended Stem, Flanged, LR ApprovedNegotiableMOQ: 1 Unit
-
Marine Cryogenic Non-Return Valve -196℃, Forged Stainless Steel, Flanged Connection, Size 1/2"-4", Pressure Class 150-300, LR Type ApprovalNegotiableMOQ: 1 Unit
Material
Other, 304 Stainless Steel
Application
Other, High temperature steam
Temperature Rating
425℃ (797°F)
Seal Type
Metal-to-Metal
Connection
Flanged
Certification
BV (Bureau Veritas)
Size Range
DN15-DN600 (1/2“-24“)
Pressure Rating
PN16-PN100 (150LB-600LB)
Shanghai Zhibang Valve Manufacture Co., Ltd. (established 2016) is proud to present our premium 304 Stainless Steel High Temp Check Valve rated for 425℃ with a robust metal-to-metal seal and flanged connections. Designed for demanding industrial applications, this valve ensures reliable backflow prevention even under extreme thermal conditions. Manufactured with precision in our Shanghai facility, our check valves have been exported worldwide (North America, Europe, Southeast Asia, etc.) with annual export value exceeding US$1 million. Every valve is BV Certified (Bureau Veritas), guaranteeing strict quality control and performance consistency. Whether you need a standard size or custom solution, our engineering team is ready to support your project.
Key Features & Technical Specifications
- High Temperature Resistance: Designed for continuous operation up to 425℃ (797°F), suitable for superheated steam, thermal oil, and high-temp process lines.
- Metal-to-Metal Seal: Machined stainless steel disc and seat provide zero leakage (Class VI shutoff) and eliminate elastomer degradation at elevated temperatures.
- 304 Stainless Steel Construction: Corrosion-resistant, durable, and easy to maintain – ideal for harsh chemical and marine environments.
- Flanged Ends (ANSI/DIN/GB): Available in raised face, flat face, and RTJ facings; bolt holes conform to standard drilling templates for easy installation.
- BV Certification: Each valve is independently tested and certified by Bureau Veritas, ensuring adherence to international quality and safety standards.
- Low Pressure Drop: Streamlined flow path minimizes energy loss; suitable for pump discharge and pipeline protection.
- Full Port Design (Optional): Reduces turbulence and wear; ideal for viscous fluids or slurry applications.
- Customizable Spring-Loaded (Optional): For vertical or horizontal mounting with rapid closure.
| Parameter | Value |
|---|---|
| Body Material | 304 Stainless Steel (CF8) |
| Disc Material | 304 Stainless Steel |
| Seat Material | 304 Stainless Steel (Metal-to-Metal) |
| Temperature Range | -20℃ ~ 425℃ |
| Pressure Rating | PN16/PN25/PN40/PN64/PN100 (150LB~600LB) |
| Connection Standard | ANSI B16.5 / DIN EN 1092-1 / GB/T 9119 |
| Size Range | DN15 (1/2") to DN600 (24") |
| Leakage Rate | API 598 / ISO 5208 Class VI |
| Certification | BV (Bureau Veritas), ISO9001:2015 |
| Port of Shipment | Shanghai, Guangzhou, Hong Kong, Beijing |
Why Choose Our 304 SS High Temp Check Valve?
- Proven Reliability: Thousands of units deployed in power plants, refineries, chemical processing, and offshore platforms worldwide.
- Metal-to-Metal Seal Advantage: No soft seals to degrade – ideal for cyclic temperature swings and high-pressure steam.
- BV Certification Guarantees Quality: Independent testing of materials, dimensions, hydrostatic and pneumatic tests ensures zero defects.
- Cost-Effective Longevity: 304 stainless steel resists pitting and crevice corrosion, reducing maintenance frequency and replacement costs.
- Flexible Customization: Available with lever & weight, spring-loaded, or counterweight designs; also can be supplied with NACE MR0175, oxygen cleaning, or cryogenic service options upon request.
Trust & Partnership with Shanghai Zhibang Valve
Since our founding in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. has grown into a reliable manufacturer with annual export value between US$1 Million and US$1.5 Million. Our main markets cover North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. We are ISO9001 certified and every high temp check valve offered here is BV certified – a testament to our commitment to quality.
Our engineering team provides full technical support, from selection to installation. With ample stock of common sizes (e.g., DN50, DN80, DN100) and fast production cycles (2-4 weeks for custom orders), we ensure your project deadlines are met. All shipments are made from Shanghai or other major ports (Guangzhou, Hong Kong, Beijing).
Ready to upgrade your high-temperature flow control? Contact us today for a quote, sample, or technical datasheet. We look forward to being your trusted partner in valve solutions.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum operating temperature of this check valve?
A: The valve is rated for continuous service up to 425℃ (797°F). For short-term peaks up to 450℃, please consult our engineers. -
Q: Can this valve be used for vertical pipelines?
A: Yes. The standard design works in horizontal or vertical upward flow. For vertical downward flow, a spring-assisted version is recommended. -
Q: Does the valve comply with API 6D or API 602?
A: This check valve is designed per API 6D (pipeline) and API 602 (compact) standards. Material traceability and NDE reports are available upon request. -
Q: What pressure ratings are available?
A: We offer PN16 (150LB) up to PN100 (600LB). Higher pressure ratings (900LB/1500LB) can be custom-manufactured. -
Q: Is the metal-to-metal seal suitable for abrasive media?
A: Yes, the hardened stainless steel seal is more resistant to erosion than soft seals. For extremely abrasive or high-velocity fluids, we recommend a full-port design or a disc with stellite coating (optional). -
Q: Can you provide a certificate of compliance and test reports?
A: Absolutely. Each valve comes with a BV certificate, material certificates (EN 10204 3.1), and a hydrostatic test report as standard. -
Q: What is the lead time for custom sizes?
A: Standard sizes (DN15-DN300) are in stock. Custom sizes (DN350-DN600) and special pressure classes typically require 3–4 weeks after order confirmation. -
Q: Do you offer samples for testing?
A: Yes, we can provide sample units for evaluation. Sample cost and shipping terms can be discussed with our sales team.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
You May Also Like
-
Stainless Steel Low Temp Check Valve for Marine, Temp -196℃, Extended Stem, Flanged, PN1.6-4.0MPa, Size 1/2"-4", LR Type ApprovedNegotiableMOQ: 1 Unit
-
Marine Low Temperature Swing Check Valve -196℃, 304SS Body, Full Bore, Flanged Connection, DN15-DN100, Pressure PN16-PN40, LR CertifiedNegotiableMOQ: 1 Unit
-
LNG Marine Low Temperature Check Valve -196℃, Used for Cryogenic Fluid Lines, Stainless Steel Body, Flanged, DN15-DN100, PN1.6-4.0MPaNegotiableMOQ: 1 Unit
-
Reliable Marine Cryogenic Check Valve -196℃, Factory Warranty, Complete Test Certificate, SS Body, Flanged, Size DN15-DN100,NegotiableMOQ: 1 Unit
-
Marine High Temperature Check Valve 425℃, Carbon Steel Body, Metal Seal, DN50-DN150, BV CertifiedNegotiableMOQ: 1 Unit
-
Marine Low Temp Check Valve -196℃, 1-Year Warranty, Stainless Steel, Mill Test Report, Flanged Connection, DN15-DN100, PN1.6-4.0MPa, LR ApprovedNegotiableMOQ: 1 Unit
-
Duplex Stainless Steel Swing Check Valve, DN150 PN16, Bolted Cover, Full Port, API 6D DesignNegotiableMOQ: 1 Unit
-
Marine Duplex Check Valve Used in Offshore Desulfurization Lines, DN80 PN25, Lug TypeNegotiableMOQ: 1 Unit
-
Marine Grade Duplex Steel Check Valve, 2205 SS, DN80 PN25, Wafer Type, NACE MR0175 CompliantNegotiableMOQ: 1 Unit
-
Marine Duplex Check Valve, 2507 Steel, DN65 PN100, Butt Weld Ends, High Temperature RatedNegotiableMOQ: 1 Unit
