| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Experience unmatched fluid control with our industrial-grade stainless steel threaded check valve. This top-tier automatic non-return valve is meticulously crafted for excellence in liquid and gas pipeline systems. Forged from premium stainless steel, it boasts exceptional corrosion resistance, high-pressure endurance, and remarkable thermal stability. It is the ultimate solution for challenging applications across chemical processing, petroleum, water treatment, and HVAC industries. Engineered to enforce unidirectional flow, it safeguards essential equipment by eliminating backflow damage.
Construction & Design
1. Materials
- Body/Bonnet: Crafted from 304/316 stainless steel, ensuring superior resistance to corrosion
- Disc: Available in robust stainless steel or reinforced engineering polymer (POM) for long-lasting durability
- Seals: Choose from EPDM, NBR, or FKM seal options, tailored for comprehensive media compatibility
- Connection: Features threaded connections (G/NPT/BSP standards) for secure and easy installation
2. Key Features
- Spring-assisted closure: Select models offer rapid response and exceptional water hammer prevention
- Low-pressure drop: Engineered flow path design minimizes system resistance for optimal efficiency
- Compact footprint: Thoughtfully designed to save space in constrained environments
- Maintenance-free operation: The self-actuating mechanism eliminates the need for external control systems
Operating Principle
Operating on differential pressure dynamics, this valve allows forward flow as fluid pressure elevates the disc, while reverse flow triggers the disc to seal automatically via gravity, spring force, or backpressure, effectively preventing backflow.
Technical Specifications
- Media Compatibility: Engineered for use with water, oils, steam, gases, and mildly corrosive fluids
- Pressure Rating: Ranges from 0.6-4.0 MPa, with higher ratings available to meet your needs
- Temperature Range: Operates efficiently between -20°C to 180°C, contingent upon seal material
- Connection Sizes: Available in DN15-DN100 (½"-4"), with custom sizes available upon request
- Cracking Pressure: Adjustable range from 0.05-0.1 MPa, especially in spring-assisted models
Typical Applications
-Petrochemical: Essential for pipeline transport and tank inlets/outlets
-Water Treatment: Ideal for pump discharges, filtration systems, and desalination processes
-HVAC: Perfect for boiler feedwater systems and cooling circuits
-Food/Pharma: Compliant with GMP standards for sanitary pipelines
-Industrial Machinery: Optimal for compressors, hydraulic systems, and fire protection applications
Product Advantages
1.Superior Reliability: Engineered with corrosion-resistant materials, ensuring performance without leaks
2.Reduced Maintenance: The self-operating design significantly reduces service demands
3.Broad Compatibility: Versatile for a wide array of media and piping standards
4.System Protection: Spring-assisted models effectively mitigate the impact of hydraulic shock
Installation & Maintenance
-Orientation: Ensure installation aligns with the flow arrow to match media direction accurately
-Maintenance: Regular checks of disc movement and seal integrity are advised for optimal performance





| Working pressure | PN16 |
| Suitable medium | Water, gas, air and some corrosive liquid |
| Investment | Casting body and cap |
| Delivery time | Usual 15 days |
| Shipping port | NingBo,YiWu |





