Silencing Check Valve China Factory and Reliable Suppliers of Water Hammer Control Valves
The STORAEN Silencing Check Valve is a precision-engineered fluid control solution designed to ensure unidirectional flow while eliminating the disruptive noise and destructive pressure surges associated with traditional check valves. By integrating a specialized spring-loaded mechanism and noise-dampening materials, this valve provides a critical defense against water hammer, safeguarding the structural integrity of piping systems in residential, commercial, and industrial environments.
Engineered for high-performance applications, our silencing check valves are available in both swing-type and lift-type configurations to meet diverse pressure and flow requirements. From high-rise water supply networks to industrial manufacturing plants, STORAEN delivers a seamless balance of safety and serenity, extending equipment lifespan and reducing long-term maintenance costs through superior hydraulic shock absorption and corrosion-resistant materials.
Detailed Parameters
| Nominal Diameter (DN) | 40mm to 500mm | Max Pressure | Up to 2.5MPa |
|---|---|---|---|
| Body Material | Ductile Iron / 316L Stainless Steel | Temperature Range | -10°C to 80°C (Up to 150°C for SS) |
| Sealing Material | EPDM / NBR Rubber coated | Connection Standard | ASME B16.5 / GB/T 17241.6 |
| Closure Speed | 0.3s to 15s (Adjustable) | Cycle Life | 50,000+ Cycles |
| Noise Level | ≤65dB to ≤75dB | Structure Standard | GB/T12221-2005 |
Key Advantages
Water Hammer Defense
Dual-stage shutoff mechanism reduces pressure surges to ≤1.3x working pressure, protecting pipes from rupture.
Acoustic Dampening
Rubber-infused sealing and waist-shaped bodies cut hydraulic noise by up to 40% compared to metal valves.
Precision Engineering
PTFE-coated guide sleeves eliminate friction and high-pitched squeaks for smoother valve operation.
Versatile Application
Compatible with high-rise buildings, HVAC systems, and industrial plants with DN40-DN500 sizing.
Enhanced Durability
Skeleton rubber seal rings are embedded in the body to prevent direct scouring and extend service life.
Optimized Flow Path
Streamlined interior design minimizes turbulence and lowers the flow resistance coefficient.
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System Compatibility
Easy integration with standard ASME and GB flange systems for seamless piping upgrades.
Maintenance Efficiency
Low-friction PTFE sleeves reduce the frequency of lubrication and operational downtime.
Noise Monitoring
Compliant with ISO 3744 standards to ensure acoustic environments meet regulatory levels.
Pressure Regulation
Adjustable needle valves allow fine-tuning of the closure speed to match system dynamics.
Inventory Versatility
Wide range of sizes (DN40-DN500) reduces the need for multiple specialized vendors.
Lifecycle Control
Robust material selection ensures 50,000+ cycles, maximizing the total cost of ownership.
Investment Return Comparison
| Feature | Traditional Check Valve | STORAEN Silent Valve |
|---|---|---|
| Noise Level | High (Metallic Slam) | Low (Cushioned Seal) |
| Water Hammer Risk | Significant Pressure Spikes | Controlled (≤1.3x Pressure) |
| Maintenance Cost | Frequent due to wear | Low (PTFE/Rubber Enhanced) |
| System Lifespan | Reduced by vibrations | Extended via shock absorption |
| Operational Comfort | Disruptive in living areas | Silent for office/residential |
Frequently Asked Questions
Swing-type valves use a hinged disc for lower pressure loss and are ideal for large diameters (DN80-DN600). Lift-type valves use a vertical stem for tighter control and higher pressure precision, best for small to medium diameters (DN15-DN200).
It employs a dual-stage shutoff: the disc closes 80% rapidly to stop backflow, and the remaining 20% closes slowly (adjustable via needle valve), preventing the sudden pressure surge that causes water hammer.
For corrosive environments, we recommend 316L Stainless Steel bodies with EPDM seals, which provide superior resistance to chemical degradation and oxidation.
Typically, silencing check valves should be installed in horizontal pipelines with the bonnet facing upward to ensure the disc seats correctly via gravity and spring tension.
These valves are primarily designed for clean media. They are not suitable for use in media containing high concentrations of solid particles or high-viscosity fluids, as this may interfere with the sealing mechanism.
Our valves feature PTFE-coated non-metallic lubrication sleeves that significantly reduce friction, meaning they require far less periodic lubrication than traditional metal-on-metal guides.
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