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Cast Steel Check Valve CF8M Body With PTFE Seat for Corrosion Resistant Water Circulation
Product Spotlights
Corrosion-resistant CF8M (316 SS) body with PTFE seat for bubble-tight shut-off and low friction. Suitable for water circulation, chemical, and seawater applications. Swing check design minimizes pressure drop. ISO9001 certified, customizable sizes and connections. Reliable backflow prevention and long service life.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Water Circulation
Standard:
Other, ISO9001, API 6D (optional)
Body Material:
CF8M (Stainless Steel 316)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Water Circulation
Standard
Other, ISO9001, API 6D (optional)
Body Material
CF8M (Stainless Steel 316)
Seat Material
PTFE (Polytetrafluoroethylene)
Type
Swing Check Valve
Size Range
DN50 - DN300 (2“ - 12“)
Pressure Rating
Class 150 - Class 300
Connection Type
Flanged (RF/FF) or Threaded
Introducing the High-Performance Cast Steel Check Valve CF8M Body with PTFE Seat – engineered specifically for corrosion-resistant water circulation systems. As a trusted manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd brings years of expertise in producing reliable fluid control components. This check valve is designed to prevent backflow effectively while offering exceptional durability against corrosive media, making it an ideal choice for water treatment plants, chemical processing, and industrial cooling circuits. Our commitment to quality is backed by ISO9001 certification, ensuring every valve meets rigorous international standards.
Key Features & Technical Specifications
- Superior Material Construction: The body is made of CF8M (equivalent to AISI 316 stainless steel), offering excellent corrosion resistance against chlorides, acids, and aggressive fluids. The disc and seat are crafted from PTFE (Teflon), providing low friction, non-stick properties, and high chemical inertness.
- Reliable Sealing Performance: PTFE seat ensures bubble-tight shut-off even at low pressures, minimizing leakage and enhancing system efficiency.
- Versatile Installation: Available in flanged (RF/FF) or threaded connections, with sizes ranging from DN50 to DN300 (2" to 12"). Suitable for pressure classes 150 and 300.
- Easy Maintenance: The swing-type design allows quick access to internal components, reducing downtime during servicing.
- Wide Temperature Range: Operates effectively from -20°C to +180°C, accommodating various industrial processes.
| Parameter | Specification |
|---|---|
| Body Material | CF8M (Stainless Steel 316) |
| Seat Material | PTFE |
| Disc Material | CF8M with PTFE overlay |
| Pressure Rating | Class 150 / Class 300 (PN16/PN40) |
| Connection Type | Flanged (RF/FF), Threaded (NPT/BSP) |
| Size Range | DN50 – DN300 (2" – 12") |
| Applicable Medium | Water, seawater, chemicals, oils, gases |
| Operating Temperature | -20°C to +180°C |
Advantages for Your Business
- Extended Service Life: The combination of CF8M and PTFE resists pitting, crevice corrosion, and stress corrosion cracking, delivering years of trouble-free operation even in harsh environments.
- Low Pressure Drop: The streamlined flow path and lightweight disc minimize resistance, saving energy in pumping systems.
- Backflow Prevention: The swing check mechanism instantly closes when flow reverses, protecting pumps and other equipment from damage.
- Customizable Options: We offer custom sizes, pressure ratings, and end connections to meet specific project requirements. Additional coatings or materials are available upon request.
Trust & Reliability from Shanghai Zhibang Valve Manufacture Co., Ltd
With an annual export value of US$1 million to US$1.5 million, we have successfully supplied valves to global markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our factory in Shanghai, China, is ISO9001 certified, ensuring consistent quality control from raw material procurement to final testing. We ship from major ports such as Shanghai, Guangzhou, Hong Kong, and Beijing, offering flexible logistics solutions. Our experienced team provides prompt technical support and after-sales service, making us a reliable partner for your fluid handling needs.
Contact us today to request a quote or discuss your specific requirements. Choose the Cast Steel Check Valve CF8M with PTFE Seat for unbeatable corrosion resistance and long-term performance in water circulation systems.
Frequently Asked Questions (FAQ)
-
What is the difference between CF8M and CF8?
CF8M is the molybdenum-bearing grade (equivalent to 316 stainless steel), offering better corrosion resistance against chlorides and acids compared to CF8 (304 stainless steel). -
Can this valve be used for hot water up to 100°C?
Yes, the PTFE seat and CF8M body can handle temperatures up to 180°C, making it suitable for hot water systems. -
Is the valve suitable for horizontal or vertical installation?
It is designed for horizontal installation with the disc hanging vertically, but can also be used in vertical flow (upward) with proper orientation. Consult our technical team for specific applications. -
What pressure testing standards are applied?
Each valve undergoes hydrostatic shell and seat leakage tests per API 598 or ISO 5208, depending on the order. -
Do you provide certificates of material or test reports?
Yes, we can supply material certificates (EN 10204 3.1) and hydrostatic test reports upon request. -
What is the lead time for standard sizes?
For standard sizes (DN50-DN200), lead time is typically 15–20 working days. Custom sizes may require 25–30 working days. -
Can the valve be used in seawater applications?
Absolutely. CF8M (316 stainless steel) combined with PTFE offers excellent resistance to seawater corrosion. -
Are replacement parts available?
Yes, we stock spare parts such as PTFE seats, gaskets, and disc assemblies for quick maintenance.
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
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