Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Valve > Butterfly Valve > Cast Steel CB/T4303 Check Valve for Steam, Temperature Range up to 200°C
Cast Steel CB/T4303 Check Valve for Steam, Temperature Range up to 200°C
Product Spotlights
Cast steel construction for durability in high-temperature steam up to 200°C. CB/T4303 standard compliant for reliable performance. Swing check design ensures automatic backflow prevention. Available in a wide size range (DN15-DN600) and pressure ratings. ISO9001 certified manufacturer with global export experience ensures quality and dependable supply.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Standard:
CB/T4303
Application:
Other, Steam Lines
Material:
Cast Steel (ASTM A216 WCB)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
OEM Check Valve for Marine Engine Cooling Water Circuits, Conforming to CB/T4303NegotiableMOQ: 1 Unit -
Marine Pipeline Check Valve per CB/T4303, OEM Production With Fire-Safe Design to API 607NegotiableMOQ: 1 Unit
-
OEM Manufacturer of CB/T4303 Marine Check Valves, Providing Technical Drawings and SupportNegotiableMOQ: 1 Unit
-
PN4.0MPa High Pressure Marine Steam Check Valve, CB/T4303 StandardNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve for Steam Systems, Cast Steel Body & Metal SealNegotiableMOQ: 1 Unit
Standard
CB/T4303
Application
Other, Steam Lines
Material
Cast Steel (ASTM A216 WCB)
Temperature Range
Up to 200°C (392°F)
Connection Type
Flanged (Standard), Threaded Optional
Pressure Rating
PN16, PN25, PN40 (Customizable)
Sealing
Metal-to-Metal Seat
Swing Type
Globe Type Swing Check
Size Range
DN15 to DN600 (1/2“ to 24“)
As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Cast Steel CB/T4303 Check Valve, engineered specifically for demanding steam applications. Designed to operate reliably in temperatures up to 200°C, this valve is a cornerstone for industrial systems requiring robust, one-way flow control. Our commitment to precision manufacturing and stringent material selection ensures this valve delivers long-lasting performance, protecting your critical pipelines from damaging backflow and pressure surges.
This valve is not just a component; it's a safeguard for your high-temperature operations. We understand the critical nature of steam systems in power generation, chemical processing, and heating applications. That's why we've focused on creating a product that combines the strength of cast steel construction with a design adhering to the CB/T4303 standard, offering you a reliable and compliant solution trusted by clients across North America, Southeast Asia, Europe, and beyond.
Key Features & Technical Advantages:
- Superior Material Integrity: The valve body and critical components are manufactured from premium-grade cast steel (typically ASTM A216 WCB), offering excellent mechanical strength and resistance to thermal stress, making it ideal for the high-temperature steam environment.
- Precision-Engineered for Steam: Specifically designed for steam service, the internal mechanism and sealing surfaces are optimized to handle the unique properties of steam, minimizing wear, water hammer effects, and ensuring a tight seal against reverse flow.
- Robust Swing Check Design: Features a globe-type swing disc mechanism. When forward flow is present, the disc swings open freely with minimal pressure drop. When flow stops or reverses, the disc swiftly and automatically closes, preventing backflow and protecting upstream equipment.
- Metal-to-Metal Sealing: Utilizes a metal seat and disc for sealing, which provides exceptional durability and resistance to erosion under high-temperature, high-velocity steam flow, unlike soft-seated valves that may degrade.
- Versatile Pressure Handling: Available in standard pressure ratings like PN16, PN25, and PN40, with options for higher ratings upon request, ensuring compatibility with a wide range of system pressures.
- Broad Size Range: We offer a comprehensive selection from DN15 (1/2") to DN600 (24"), allowing for seamless integration into both new installations and retrofit projects across various scales.
- Standard & Custom Connections: Primarily supplied with flanged ends per common standards (ASME B16.5, DIN, etc.), with threaded (NPT, BSP) connections available as an option to meet specific piping requirements.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Product Standard | CB/T4303 |
| Body Material | Cast Steel (A216 WCB) |
| Max. Working Temperature | 200°C (392°F) |
| Pressure Rating | PN16, PN25, PN40 (Others available) |
| Seat/Disc Material | Stainless Steel (Standard) / Alloy Steel (Optional) |
| Connection | Flanged (Standard), Threaded (Optional) |
| Size Range | DN15 - DN600 (1/2" - 24") |
| Flow Direction | Horizontal or Vertical (Flow direction marked on body) |
Benefits for Your Operations:
- Enhanced System Safety: Effectively prevents dangerous backflow of steam or condensate, protecting boilers, turbines, and other sensitive equipment from damage.
- Reduced Maintenance & Downtime: The robust cast steel construction and durable metal sealing significantly extend service intervals, lowering lifecycle costs and minimizing unplanned shutdowns.
- Improved Process Efficiency: Maintains designed system pressure and flow direction, contributing to stable and efficient operation of your steam-dependent processes.
- Global Compliance & Compatibility: Manufactured to the CB/T4303 standard, it is a recognized and trusted product, facilitating its use in international projects and supply chains.
- Reliable Supply from an Expert: Sourced directly from our ISO9001-certified factory established in 2016, you benefit from consistent quality, competitive pricing, and the technical support of a dedicated manufacturer.
Our commitment to quality is reflected in our ISO9001 certification and proven by our successful export track record, with annual exports valued between US$1 Million to US$1.5 Million, serving diverse markets worldwide from North America and Europe to Southeast Asia and Africa. We ship efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to your project site. Choose Shanghai Zhibang's Cast Steel Check Valve for a combination of rugged reliability, technical precision, and manufacturer-direct value. It's a strategic investment in the safety and efficiency of your high-temperature fluid systems.
Frequently Asked Questions (FAQ):
-
Q: Is this valve suitable for saturated steam service at 200°C?
A: Yes, it is specifically designed and rated for steam service with a maximum continuous working temperature of 200°C, making it suitable for many saturated steam applications. -
Q: Can I use this valve in a vertical pipeline with upward flow?
A: Yes, this swing check valve can be installed in both horizontal and vertical pipelines. For vertical installation, upward flow is required to allow the disc to swing open properly. -
Q: What is the main difference between the CB/T4303 standard and other check valve standards?
A: CB/T4303 is a Chinese national standard for shipboard valves, known for its rigorous requirements on materials, pressure-temperature ratings, and testing, ensuring high reliability which is also valued in general industrial applications. -
Q: Are soft seats available for better sealing at lower temperatures?
A: This model features a standard metal-to-metal seat optimized for high-temperature steam. For applications requiring bubble-tight sealing at lower temperatures, please inquire about alternative seat material options. -
Q: What is the typical lead time for an order of DN100, PN25 valves?
A: For standard specifications, we maintain stock for common sizes. Lead times vary based on quantity; please contact us with your specific requirements for an accurate delivery schedule. -
Q: Do you provide pressure test reports and material certificates with the valves?
A: Yes, as an ISO9001 certified manufacturer, we can provide standard inspection reports and material certificates (MTC) upon request. Third-party inspection can also be arranged. -
Q: Is the valve suitable for other fluids besides steam?
A: While optimized for steam, it can be used for other high-temperature fluids like hot water, thermal oil, or certain gases, provided the fluid is compatible with cast steel and the operating conditions are within the valve's rated temperature and pressure limits. -
Q: What is your warranty policy for this product?
A: We offer a standard warranty against manufacturing defects. The specific warranty period and terms can be provided upon request and are detailed in our commercial contract.
Send Inquiry to This Supplier
* Email
Want the best price?
Post an RFQ now!
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
You May Also Like
-
CB/T4303 Marine Steam Check Valve With Mill Test Report, DN150 SizeNegotiableMOQ: 1 Unit
-
CB/T4303 Standard Compliant Steam Check Valve, Including Installation GuideNegotiableMOQ: 1 Unit
-
CB/T4303 Steam Check Valve for Shipboard Pipeline ProtectionNegotiableMOQ: 1 Unit
-
Marine Steam System CB/T4303 Check Valve, For Boiler Feedwater ApplicationsNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve With 2-Year Warranty on Seal ComponentsNegotiableMOQ: 1 Unit
-
DN50-DN200 PN16 Marine Check Valve for Compressed Air Systems per CB/T4303 StandardNegotiableMOQ: 1 Unit
-
Standard Compliant Marine Check Valve CB/T4303, Technical Support AvailableNegotiableMOQ: 1 Unit
-
For Ship Compressed Air Lines: CB/T4303 Marine Check Valve With DN100 FlangeNegotiableMOQ: 1 Unit
-
Marine Grade Check Valve for Compressed Air Piping, Meets CB/T4303, Cast Iron & RubberNegotiableMOQ: 1 Unit
-
Compressed Air System Marine Check Valve, CB/T4303 Design With Wafer ConnectionNegotiableMOQ: 1 Unit
