Silent Check Valve
Resistant
Sealing
Operation
Long Life
Alis Valves is an Silent Check Valve Manufacturer Supplier in India Offer designed to prevent reverse flow and minimize water hammer and operating noise in piping systems. Its spring-assisted closing mechanism provides quick and smooth shut-off, making it suitable for water supply, pumping stations, HVAC, water treatment, and industrial applications.
Specifications
Size Range
DN40 to DN500 (1½" to 20")
Pressure Rating
PN10, PN16, PN25, PN40
Body Material
Ductile Iron / Carbon Steel / Stainless Steel*
Seat Material
EPDM / NBR / PTFE
Operating Temperature
Up to 120°C*
Closing Mechanism
Spring-Assisted Quick Closing
Disc Material
Stainless Steel / Ductile Iron / Carbon Steel*
Spring Material
Stainless Steel
Product Images
Frequently Ask Questions
A Silent Check Valve is an automatic non-return valve designed to prevent reverse flow while reducing valve noise, pressure surges and water hammer.
Its spring-assisted closing helps the disc close before significant reverse flow develops, reducing sudden flow reversal and pressure surges.
Yes. Silent Check Valves are commonly used on pump discharge lines where reverse-flow prevention and reduced water hammer are required.
The disc opens with forward flow and closes quickly with the help of a spring when flow decreases or reverses.
PTFE may be selected where chemical compatibility, low friction or higher temperature capability is required.
Yes, ALIS Valves is a Silent Check Valve Manufacturer in India, offering check valve solutions for water supply, pumping, water treatment, HVAC and industrial pipeline applications.
