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CB/T4303 Wafer Check Valve for Chemical Transfer Lines in Pharmaceutical Processing
Product Spotlights
ISO9001-certified wafer check valve designed for pharmaceutical chemical transfer. Compact flange-between installation saves space. Corrosion-resistant materials (316SS, Hastelloy C, PTFE) ensure reliability with aggressive chemicals. Prevents backflow contamination, protects pumps. Available in sizes DN15-DN300, pressures PN16-PN40. Features low pressure drop, optional visual indicator. Supports GMP compliance and process safety.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Chemical transfer lines in pharmaceutical processing
Material:
316 Stainless Steel, Hastelloy C, or PTFE-lined
Size Range:
DN15 to DN300 (1/2“ to 12“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Chemical transfer lines in pharmaceutical processing
Material
316 Stainless Steel, Hastelloy C, or PTFE-lined
Size Range
DN15 to DN300 (1/2“ to 12“)
Connection Type
Wafer type, between flanges
Sealing Mechanism
Spring-assisted or gravity-operated
Standards
CB/T4303, ISO9001 certified manufacturing
Pressure Rating
PN16 to PN40 (Class 150 to Class 300)
Temperature Range
-20°C to +150°C (-4°F to +302°F)
Optional Features
Lockable handle, visual flow indicator
As a specialized manufacturer with ISO9001-certified processes, Shanghai Zhibang Valve Manufacture Co., Ltd. designs the CB/T4303 Wafer Check Valve to meet the stringent demands of pharmaceutical chemical transfer lines. Our valve ensures unidirectional flow control, preventing costly backflow contamination and protecting sensitive processes. Engineered for reliability in corrosive environments, it offers a compact, low-maintenance solution that integrates seamlessly into your existing piping systems.
This valve is a critical component for maintaining process integrity. Its core function is to allow fluid flow in one direction only, automatically closing when flow stops or reverses. This simple yet vital mechanism safeguards pumps, prevents mixing of different batches, and protects against pressure surges.
Key Technical Specifications & Advantages:
- Robust Construction for Chemical Resistance: Available in materials like 316 Stainless Steel, Hastelloy C, or with PTFE lining, the valve body and internal components resist attack from a wide range of aggressive pharmaceuticals, solvents, and cleaning agents.
- Compact Wafer Design: The valve installs between two pipeline flanges, requiring no additional bolts or nuts for the valve itself. This saves space, reduces weight, and simplifies installation and maintenance compared to flanged check valves.
- Precise & Reliable Sealing: Utilizes a spring-assisted or gravity-operated disc to ensure swift, positive closure. The sealing surface is precision-machined and paired with a compatible seat (e.g., PTFE, reinforced elastomer) to achieve leak-free performance.
- Low Pressure Drop: The internal design minimizes flow obstruction, reducing energy loss and maintaining efficient system pressure, which is crucial for sensitive transfer operations.
- Easy Inspection & Maintenance: Many models feature a lockable external handle or a visual indicator to show the disc position. The simple design allows for quick inspection and, if necessary, easy replacement of internal parts without removing the entire valve from the line.
Detailed Parameter Table:
| Parameter | Typical Range / Specification |
| Standard | CB/T4303 |
| Nominal Diameter (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 |
| Pressure Rating (PN) | 16, 25, 40 (Common) |
| Temperature Range | -20°C to +150°C (Standard); Customizable for higher/lower |
| Body Material Options | 316L SS, Hastelloy C, Carbon Steel (lined) |
| Seat/Disc Material Options | PTFE, PEEK, FKM, Metal-to-metal |
| End Connection | Wafer (between flanges), Face-to-face dimensions per standard |
| Optional Features | External lever with lock, flow direction indicator, special coatings |
Benefits for Your Pharmaceutical Operation:
- Process Safety: Eliminates risk of backflow, preventing cross-contamination between different chemical streams or batches, a critical requirement for GMP compliance.
- System Protection: Shields pumps and other equipment from damage caused by reverse flow or water hammer, reducing downtime and maintenance costs.
- Operational Efficiency: The low pressure drop design helps maintain consistent flow rates, while the compact installation saves valuable space in often crowded processing areas.
- Long-Term Reliability: Constructed from corrosion-resistant materials, the valve offers extended service life even with frequent cleaning cycles and exposure to harsh chemicals, providing a dependable long-term investment.
- Simplified Compliance: Manufactured under an ISO9001 quality system, the product supports your quality documentation and traceability requirements.
With an annual export value demonstrating our global reach and reliability, and serving key markets including North America, Europe, and Southeast Asia, Shanghai Zhibang has built a reputation for delivering precision valves that perform. Our CB/T4303 Wafer Check Valve embodies this commitment. It is not just a component; it is a safeguard for your pharmaceutical production integrity. To discuss specific material selections, sizes, or custom requirements for your chemical transfer lines, contact our technical team today.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a wafer-style check valve over a flanged check valve?
A: The wafer design is significantly more compact and lighter. It installs directly between two existing pipeline flanges using the flange bolts, eliminating the need for separate valve flange bolts and nuts. This saves space, reduces weight, and lowers installation time and cost. -
Q: Can this valve handle aggressive pharmaceutical chemicals and solvents?
A: Yes. By selecting the appropriate body material (e.g., 316 Stainless Steel, Hastelloy C) and seat material (e.g., PTFE, PEEK), the valve can be configured to resist corrosion and degradation from a wide spectrum of chemicals used in pharmaceutical processing. -
Q: Is the valve suitable for sterile or clean-in-place (CIP) applications?
A: The design can be adapted for such requirements. Smooth internal surfaces, specific material choices, and configurations that minimize dead spaces are available upon request to support CIP and sterility needs. -
Q: How does the valve close? Is it spring-assisted or gravity-operated?
A: Both types are available. Spring-assisted valves provide faster, more positive closure, especially in horizontal lines or low-flow conditions. Gravity-operated models are often used in vertical upward flow lines. The choice depends on your specific piping orientation and flow characteristics. -
Q: What pressure ratings are typically available?
A: Common pressure ratings align with PN16 (Class 150), PN25, and PN40 (Class 300). Higher pressure ratings can be engineered based on your system requirements. -
Q: Are there visual indicators to show if the valve is open or closed?
A: Yes, an optional external lever or indicator is available. This feature allows operators to visually confirm the disc position, which is helpful for troubleshooting and process verification. -
Q: Does the valve comply with any international standards beyond CB/T4303?
A> The valve is manufactured according to the CB/T4303 standard. While the design can be produced to meet the functional requirements of other international standards (like API, ANSI), specific certification to those standards would be a customizable option and should be discussed during the ordering process. -
Q: What is the typical delivery lead time?
A> Lead times vary based on size, material, and quantity. Standard configurations in common sizes often have shorter lead times. We operate multiple shipment ports (Shanghai, Guangzhou, Hong Kong, Beijing) to facilitate efficient logistics to our global markets.
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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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