Slow-Closing Silent Check Valve: Hydraulic Control For Water Hammer Elimination​

Applications

Building Services: Water supply systems in high-rise buildings, residential complexes, and drainage systems to protect pumps and prevent water hammer on pump stoppage.

Fire Protection Systems: Installed at pump discharges in firefighting pipelines to ensure system integrity and prevent backflow.

HVAC Systems: Used in heating, ventilation, and air conditioning circuits for both hot and cold water to maintain efficient flow and protect equipment.

Industrial Processes: Critical for water and process fluid lines in industries such as chemical processing, power plants, and water treatment facilities.

VFD Pump Systems: Specially designed models are compatible with Variable Frequency Drive (VFD) controlled pumps in booster systems, minimizing hydraulic shocks and flow losses.

Advantages

Water Hammer Elimination: The primary technical advantage is effective prevention of pressure surges (water hammer) that can damage pipelines and equipment.

Significant Noise Reduction: Spring-assisted closure and optimized disc geometry reduce operating noise to 30-50 dB, compared to 60-80 dB for traditional swing check valves. This is particularly beneficial for noise-sensitive environments like hospitals, hotels, and residential buildings.

Minimal Pressure Loss: Streamlined internal flow path design ensures low flow resistance, contributing to energy efficiency.

Reliable Backflow Prevention: Rapid closure ensures no reverse flow, protecting pumps and preventing contamination.

Durable Construction: Manufactured with corrosion-resistant materials such as stainless steel for the disc and spring, and ductile iron or cast iron for the valve body, ensuring long service life even under demanding conditions.

Flexible Installation: Compact design allows for horizontal or vertical installation (depending on model), providing layout flexibility in space-constrained applications.