Cement
Engineered valve solutions tailored for critical Cement operating processes.
Silenced Check Valve
Resistant
Sealing
Operation
Long Life
Alis Valves is an Silenced Check Valve Manufacturer Supplier in India Offer designed to prevent reverse flow and minimize pressure surges and valve noise during operation. Its guided closing mechanism helps provide smooth, quiet shut-off, making it suitable for water supply, pumping stations, HVAC, industrial pipelines, and water treatment systems.
Product Specifications and Overview
ALIS Valves offers Silenced Check Valves for industrial applications requiring reliable non-return flow control and reduced noise during valve operation. These valves are designed to allow fluid to flow in one direction and prevent reverse flow, helping protect pipelines, pumps and connected equipment. Depending on the design, the closing mechanism can also help minimize water hammer and pressure surges.
Silenced Check Valves are suitable for compatible applications in water treatment plants, pumping stations, HVAC systems, power generation and industrial fluid handling systems. The appropriate valve selection depends on operating pressure, flow rate, temperature, fluid type, valve size and material requirements.
At ALIS Valves, we help you identify a suitable Silenced Check Valve based on your application requirements and project specifications. Contact us to discuss your needs and find the right valve solution for your system.
Size Range
DN40–DN500 (1½"–20")
Pressure Rating
PN10 / PN16 / PN25 / PN40 / Class 150
Body Material
Ductile Iron / Carbon Steel / Stainless Steel
Disc Material
Stainless Steel / Ductile Iron / Carbon Steel
Seat Material
EPDM / NBR / PTFE / Metal
Spring Material
Stainless Steel
Water Hammer Control
Non-Slam / Fast Spring-Assisted Closure
Closing Mechanism
Spring-Loaded Guided Disc
Design
Spring-Assisted, Non-Slam
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Frequently Ask Questions
It is an automatic non-return valve with spring-assisted closing designed to prevent reverse flow and reduce water hammer and valve slam.
The spring provides controlled, fast disc closure and helps prevent sudden valve slamming.
A short stroke allows faster response to flow changes and helps reduce closing time and pressure transients.
Yes. It is commonly used at pump discharge lines to prevent backflow and reduce water-hammer effects on pumps and piping.
Differential pressure affects disc opening, flow capacity, pressure drop and the force acting on the sealing surfaces.
NBR may be preferred where oil or hydrocarbon compatibility is required, subject to the specific medium and temperature.
Forward flow pushes the guided disc open. When flow decreases, the spring moves the disc toward the seat and closes the valve before significant reverse flow develops.
The disc closes before substantial reverse flow develops, reducing the sudden flow reversal responsible for pressure surges.
It provides a smoother flow path and can reduce flow resistance and pressure loss compared with less streamlined designs.
Many designs permit horizontal and vertical installation, but the permitted orientation should be confirmed for the specific valve design.
EPDM is commonly selected for compatible water and general aqueous services. Chemical compatibility and temperature must be checked.
Yes. ALIS Valves offers industrial check valve solutions in India, with valve selection based on pressure, flow, medium, temperature and application requirements.
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