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CB/T4303 Wafer Check Valve With PTFE Seals for Corrosive Media
Product Spotlights
Designed for corrosive media systems, this wafer check valve features PTFE seals for superior chemical resistance. Its compact wafer design saves space and weight. Built to CB/T4303 standard, it offers reliable one-way flow control, protects equipment from backflow, and reduces maintenance. Available in multiple sizes and body materials (carbon steel, stainless steel) to suit various applications.
Negotiable
MOQ: 10 Units (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Carbon Steel / Stainless Steel / Other Metals
Application:
Other, Corrosive Media Handling Systems
Standard:
Other, CB/T4303 Standard
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
7 days
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Material
Other, Carbon Steel / Stainless Steel / Other Metals
Application
Other, Corrosive Media Handling Systems
Standard
Other, CB/T4303 Standard
Size Range
DN50 to DN300 (2“ to 12“)
Seal Material
PTFE (Polytetrafluoroethylene)
Connection Type
Wafer Type (Between Flanges)
Operating Pressure
PN10 to PN16 (Customizable)
Temperature Range
-20°C to 150°C (Optional Higher)
End Connection
Flanged Ends (RF or FF)
Optional Features
Lockable Handle, Different Trim Materials
As a professional manufacturer with ISO9001 certified quality management since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in producing high-performance valves for demanding industrial applications. Our CB/T4303 Wafer Check Valve with PTFE Seals is engineered specifically to provide reliable, one-way flow control in systems handling corrosive media. With an annual export value reflecting our global reach across North America, Europe, Asia, and beyond, we understand the critical need for durable components that withstand aggressive fluids, acids, and chemicals. This valve represents our commitment to delivering solutions that enhance system safety, reduce maintenance costs, and ensure long-term operational integrity.
Core Product Features & Technical Specifications:
- Advanced Seal Design: The valve utilizes PTFE (Polytetrafluoroethylene) seals, renowned for exceptional chemical resistance, low friction, and stability across a wide temperature range. This ensures the valve remains leak-proof and functional even when exposed to highly corrosive liquids or gases.
- Compact Wafer Construction: Designed as a wafer-type valve, it installs conveniently between two pipeline flanges, saving space and weight compared to traditional flanged check valves. This design is ideal for systems with limited installation space.
- Robust Body Materials: The valve body is available in various materials such as carbon steel, stainless steel (304/316), or other alloys to match specific corrosion resistance and strength requirements of your application.
- Precision Flow Control: The internal mechanism allows fluid to flow freely in one direction while automatically preventing reverse flow (backflow) upon pressure change, protecting upstream equipment from damage.
- CB/T4303 Standard Compliance: Manufactured according to the CB/T4303 standard, ensuring dimensional accuracy, performance consistency, and compatibility with standard piping systems.
Detailed Technical Parameters:
| Parameter | Specification / Range | Notes |
|---|---|---|
| Nominal Diameter (DN) | DN50, DN80, DN100, DN150, DN200, DN250, DN300 | Corresponding to 2", 3", 4", 6", 8", 10", 12" |
| Pressure Rating (PN) | PN10, PN16 | Higher ratings available upon request |
| Operating Temperature | -20°C to 150°C | PTFE seal suitable for this range |
| Body Material Options | Carbon Steel, Stainless Steel 304, Stainless Steel 316, Duplex Steel | Select based on media corrosiveness |
| Seal Material | PTFE (Standard) | Other elastomers optional for non-corrosive use |
| Connection Face | Raised Face (RF) or Flat Face (FF) | Matches flange standards |
| Testing Standard | Hydrostatic shell test, seat leakage test | Ensures integrity before shipment |
Benefits for Your Operations:
- Enhanced System Protection: Prevents backflow of corrosive media, safeguarding pumps, meters, and other sensitive equipment from potential damage and contamination.
- Reduced Maintenance & Downtime: The combination of a corrosion-resistant PTFE seal and a durable body material minimizes wear, leakage, and the frequency of replacements, leading to lower operational costs.
- Space & Weight Savings: The wafer design is lighter and requires less installation space than standard check valves with separate flanges, beneficial in compact plant layouts.
- Flexibility & Compatibility: Available in a range of sizes and materials, this valve can be tailored to fit into existing systems handling various corrosive chemicals, acids, alkalis, or saline solutions.
- Reliable Performance in Tough Conditions: Designed to maintain its sealing function and structural integrity under the challenging conditions presented by corrosive media flow.
Trust in a product backed by real manufacturing expertise. Shanghai Zhibang Valve, established in 2016 and holding ISO9001 certification, ensures every valve meets stringent quality controls. Our products reach diverse markets from North America and Europe to Southeast Asia and Africa, supported by an annual export value demonstrating consistent global demand. We offer flexible shipment from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing. Choosing our CB/T4303 Wafer Check Valve means investing in a component designed for durability, safety, and cost-efficiency in corrosive environments. Contact us today to discuss your specific requirements, request a quotation, or learn more about how this valve can optimize your fluid handling system.
Frequently Asked Questions (FAQ):
-
Q: What makes PTFE seals suitable for corrosive media?
A: PTFE, or Polytetrafluoroethylene, is a synthetic fluoropolymer known for its high chemical inertness. It resists attack from most acids, bases, solvents, and oxidizing agents, making it an ideal sealing material for valves handling aggressive fluids. -
Q: Can this wafer check valve be used in high-temperature applications beyond 150°C?
A: The standard PTFE seal is rated for the specified range. For higher temperature applications, we can discuss optional seal materials or customized designs based on your exact operating conditions. -
Q: Is the valve suitable for both liquid and gas corrosive media?
A: Yes, the valve design and PTFE seal are effective for controlling the flow of both corrosive liquids and gases, provided the pressure and temperature ratings are within the specified limits. -
Q: How does the wafer installation differ from a standard flanged check valve?
A: A wafer valve is installed by bolting it between two existing pipeline flanges. A standard flanged check valve has its own flanges that bolt to the pipeline flanges. The wafer type is more compact and often lighter. -
Q: What body material should I choose for my application?
A: The selection depends on the specific corrosive media and operating environment. Stainless steel 316 offers higher corrosion resistance than 304. Carbon steel is economical for less aggressive media. We provide guidance based on your details. -
Q: Does the valve come with any locking mechanism to hold it open or closed?
A: A lockable handle or similar mechanism is an optional feature available upon request. The standard valve operates automatically based on flow direction and pressure differential. -
Q: Are there other seal materials available besides PTFE?
A: Yes, for applications where PTFE is not required (e.g., non-corrosive media), we can offer valves with other elastomer seals like EPDM or NBR. PTFE is the standard for corrosive service. -
Q: What is the typical lead time for orders of this valve?
A: Lead times vary based on order quantity, size, and material specifications. Standard sizes and materials often have shorter lead times. We provide accurate timelines upon receipt of your inquiry.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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