Slow Closing Butterfly Type Check Valve

Corrosion
Resistant
Leak Tight
Sealing
Automated
Operation
Low Maintenance
Long Life

Alis Valves is an Slow Closing Butterfly Check Valve Manufacturer in India offering designed to prevent reverse flow while providing controlled, gradual valve closure to help reduce water hammer and pressure surges. It is suitable for water supply, pumping stations, HVAC systems, irrigation, and industrial pipeline applications.

Product Specifications and Overview

ALIS Valves is a manufacturer and supplier of Slow Closing Butterfly Type Check Valves in India, offering flow control solutions designed to help prevent reverse flow and reduce sudden pressure surges in industrial piping systems. Featuring a butterfly-type disc mechanism with a controlled closing arrangement, this valve helps minimize water hammer and supports smoother, more reliable operation in demanding pipeline applications.

Designed for water supply networks, water treatment plants, pumping stations, industrial process lines and other fluid handling systems, the Slow Closing Butterfly Type Check Valve allows fluid to flow in the intended direction while helping prevent backflow when flow conditions change. Its controlled closing action can help reduce the impact of abrupt valve closure, protecting connected pipelines, pumps and associated equipment from excessive pressure fluctuations.

ALIS Valves offers industrial check valve solutions with options based on valve size, body material, pressure rating, end connection and application requirements. Depending on the system design, suitable configurations can be selected for water distribution, pump discharge lines and other industrial applications where dependable non-return flow control is required.

Size Range

DN50–DN1000

Pressure Rating

PN10 / PN16 / PN25 / Class 150

Body Material

Ductile Iron / Carbon Steel / Stainless Steel

Disc Material

Ductile Iron / Carbon Steel / Stainless Steel

Seat Material

EPDM / NBR / PTFE

Buffer System

Hydraulic / Oil Pressure Buffer

Installation

Horizontal / Pump Discharge

Closing Action

Two-Stage Fast + Slow Closing

Slow Closing Butterfly Type Check Valve

Industries Served

Cement

Cement

Engineered valve solutions tailored for critical Cement operating processes.

Chemical

Chemical

Engineered valve solutions tailored for critical Chemical operating processes.

Data centres

Data centres

Engineered valve solutions tailored for critical Data centres operating processes.

Fertilizer

Fertilizer

Engineered valve solutions tailored for critical Fertilizer operating processes.

Applications

Ammonia

Ammonia

Industrial Valves for Ammonia Applications Industrial valves used in ammonia systems are selected according…

CO₂

CO₂

High-performance flow automation engineered for CO₂ operations.

Compressed Air

Compressed Air

High-performance flow automation engineered for Compressed Air operations.

Cryogenic

Cryogenic

High-performance flow automation engineered for Cryogenic operations.

Frequently Ask Questions

It is a butterfly-type non-return valve with controlled closing designed to prevent reverse flow and reduce water hammer.
The disc can close quickly initially and then slow down near the closed position, reducing the severity of hydraulic shock.
It controls the final disc-closing speed and provides damping during the closing cycle.
Differential pressure affects disc forces, flow velocity, sealing load and the required closing characteristics.
EPDM provides suitable sealing performance for many water applications, subject to temperature and chemical compatibility.
In hydraulic slow-closing designs, the closing speed/time can often be adjusted through the hydraulic damping system.
ALIS Valves offers industrial check valve solutions in India, with selection based on pipeline size, flow, pressure, medium and water-hammer requirements.
It controls the disc-closing sequence and helps reduce sudden pressure surges when pump flow stops.
It is commonly installed at pump discharge lines, water transmission pipelines, water treatment plants and industrial circulation systems.
The valve closes rapidly through most of its travel and then changes to slower closing near the seat to reduce water hammer.
For large-flow pipelines where maintaining acceptable velocity and pressure loss is important.
Yes, where increased corrosion resistance is required and stainless-steel compatibility is confirmed for the process medium.
Some hydraulic self-controlled designs operate from pipeline conditions without external pneumatic or electrical power; the exact arrangement depends on the valve design.