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Slow Closing Butterfly Check Valve With Stainless Steel Disc and Shaft, DN50 to DN600
Product Spotlights
A durable butterfly check valve featuring a stainless steel disc and shaft for corrosion resistance, combined with a unique slow-closing mechanism to effectively prevent water hammer and protect pipeline systems. Available in a wide DN50 to DN600 size range with customizable connections, seals, and pressure ratings, it ensures reliable backflow prevention, operational safety, and low maintenance for diverse industrial fluid control applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Industrial Fluid Control Systems
Standard:
ISO9001 Certified Manufacturer
Material:
Stainless Steel Disc and Shaft
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Industrial Fluid Control Systems
Standard
ISO9001 Certified Manufacturer
Material
Stainless Steel Disc and Shaft
Size Range
DN50 to DN600
Type
Slow Closing Butterfly Check Valve
Connection
Flanged, Wafer, Optional
Pressure Rating
Customizable, Available upon request
Operation
Manual or Actuator Operated
Sealing
Rubber or PTFE Seal, Optional
As a professional manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in producing high-quality industrial valves for global markets. Our Slow Closing Butterfly Check Valve with Stainless Steel Disc and Shaft is engineered to provide reliable, durable, and efficient flow control in a wide range of piping systems. This valve combines the robustness of stainless steel critical components with a unique slow-closing mechanism to prevent water hammer, protect pipeline infrastructure, and ensure smooth operation. It is an ideal solution for applications requiring precise backflow prevention and pressure management from DN50 to DN600 sizes.
Product Features and Technical Advantages:
- Durable Stainless Steel Construction: The disc and shaft are made from high-grade stainless steel, offering excellent corrosion resistance and longevity, especially in harsh or corrosive fluid environments.
- Slow Closing Mechanism: The valve features a controlled, gradual closing action. This significantly reduces the risk of water hammer—the sudden pressure surge caused by rapid valve closure—which can damage pipes, pumps, and other equipment.
- Versatile Size Range: Available in nominal diameters from DN50 (approx. 2 inches) to DN600 (approx. 24 inches), catering to diverse pipeline requirements in water supply, HVAC, industrial processing, and more.
- Effective Check Valve Function: Primarily designed to prevent backflow, it automatically closes when flow reverses, ensuring fluid moves only in the intended direction and protecting system integrity.
- Multiple Connection Options: Typically supplied with flanged or wafer-style connections for easy installation into existing piping networks. Specific connection types can be customized upon request.
- Flexible Sealing Options: The seat sealing can be provided with materials like EPDM rubber or PTFE to match different fluid temperatures and chemical compatibilities.
- Manual or Automated Operation: Can be operated manually via a handwheel or lever, or equipped with an electric, pneumatic, or hydraulic actuator for remote or automated control systems.
- Low Maintenance Design: Simple structure with few moving parts ensures easy inspection and maintenance, reducing long-term operational costs.
Technical Specifications Table:
| Parameter | Details / Range |
|---|---|
| Product Type | Slow Closing Butterfly Check Valve |
| Critical Material | Stainless Steel (Disc & Shaft) |
| Size Range (Nominal Diameter) | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Connection Types | Flanged, Wafer (Specific type available upon request) |
| Seat Seal Material Options | EPDM Rubber, PTFE, NBR (Customizable) |
| Pressure Rating | Customizable based on application (e.g., PN10, PN16, etc.) |
| Operation Mode | Manual (Handwheel/Lever) or with Actuator (Optional) |
| Primary Function | Check Valve / Backflow Prevention with Slow Closing |
| Typical Applications | Water Treatment, HVAC Systems, Industrial Process Lines, Pump Protection, Fire Protection Systems |
Benefits for Your Project:
- System Protection: The slow-closing feature is a key benefit, actively preventing water hammer and the associated stress on pipes, joints, pumps, and instruments, leading to lower maintenance and repair costs.
- Enhanced Reliability: Stainless steel components resist corrosion and wear, ensuring the valve performs consistently over long periods, even with aggressive or variable fluids.
- Operational Safety: Prevents unwanted backflow, which can contaminate systems or cause operational hazards, enhancing overall process safety.
- Broad Compatibility: The wide size range and customizable options (seals, connections, pressure ratings) make it adaptable to many existing and new system designs.
- Cost-Efficiency: Durable construction and low maintenance needs contribute to a lower total lifecycle cost compared to valves requiring frequent service or replacement.
Shanghai Zhibang Valve, an ISO9001 certified manufacturer with an annual export value between US$1 Million and US$1.5 Million, has built a strong reputation for quality and reliability since 2016. Our valves are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, and have been successfully supplied to markets across North America, South America, Europe, Asia, Africa, and Oceania. This global experience means we understand diverse industrial requirements and standards. Choosing our Slow Closing Butterfly Check Valve means partnering with a proven supplier committed to delivering products that enhance your system's performance, durability, and safety. We encourage you to contact us for specific sizing, pressure requirements, or to discuss how this valve can benefit your application.
Frequently Asked Questions (FAQ):
-
Q: What exactly does "slow closing" mean for this butterfly check valve?
A: "Slow closing" refers to a designed mechanism that controls the speed at which the valve disc closes when flow stops or reverses. Instead of snapping shut instantly, it closes gradually over a few seconds. This dampens the pressure wave (water hammer) that can occur with rapid closure, protecting the pipeline system. -
Q: Why are the disc and shaft specifically made from stainless steel?
A: The disc and shaft are critical moving parts exposed to the fluid. Stainless steel offers high strength, excellent corrosion resistance, and good wear properties. This ensures these components last longer, especially when handling water, mild chemicals, or other fluids that could corrode ordinary materials. -
Q: Can this valve be used for gases or steam applications?
A: This valve is primarily designed for liquid flow control. Its sealing materials and design may not be suitable for high-temperature steam or certain gases. Please consult with our technical team for specific gas or steam application requirements; alternative models or customizations may be available. -
Q: How do I select the right size (DN) for my pipeline?
A: The DN (Nominal Diameter) should match the inner diameter of your connecting pipe. Common conversions: DN50 ≈ 2", DN100 ≈ 4", DN200 ≈ 8", DN600 ≈ 24". Provide your pipe size and we can recommend the corresponding valve DN size. We offer the full range from DN50 to DN600. -
Q: Is an actuator available for automated operation?
A: Yes, actuator operation is an optional feature. The valve can be configured with electric, pneumatic, or hydraulic actuators for integration into automated control systems. The specific actuator type and controls would be customized based on your system requirements. -
Q: What are the common pressure ratings (PN) for these valves?
A: Pressure ratings are customizable. Common standard ratings include PN10 (10 bar) or PN16 (16 bar), but we can manufacture valves to meet higher or specific pressure requirements based on your application data. Please provide your required working pressure. -
Q: What maintenance does this valve typically require?
A: Due to its robust stainless steel construction and simple design, maintenance is minimal. Periodic inspection of the seal for wear and lubrication of the shaft (if applicable) is recommended. The slow-closing mechanism itself is generally maintenance-free. -
Q: Does the valve come with any certifications?
A: Our manufacturing process is certified to ISO9001, ensuring consistent quality management. The valve itself may comply with various industry standards depending on configuration and market. Specific certifications for the product can be discussed and provided upon request based on your regional requirements.
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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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