Chemical
Engineered valve solutions tailored for critical Chemical operating processes.
Piston Adjustable Pressure Reducing Valve
Resistant
Sealing
Operation
Long Life
Alis Valves Is an Piston Adjustable Pressure Reducing Valve Manufacturer in India Offering designed to reduce and maintain downstream pressure at a preset level, helping protect pipelines and equipment from excessive pressure. Its adjustable piston mechanism allows controlled pressure regulation for water supply, irrigation, water treatment, pumping stations, and industrial piping systems.
Product Specifications and Overview
ALIS Valves offers Piston Adjustable Pressure Reducing Valves for industrial applications requiring reliable downstream pressure regulation. These valves are designed to reduce higher inlet pressure to a controlled outlet pressure, helping maintain suitable operating conditions in compatible piping systems.
Piston Adjustable Pressure Reducing Valves are suitable for applications in water treatment plants, industrial process systems, power generation and other fluid handling installations. The appropriate valve selection depends on inlet pressure, required outlet pressure, flow rate, operating temperature, fluid type and material specifications.
At ALIS Valves, we help you identify a suitable Piston Adjustable Pressure Reducing 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
DN15 to DN100 (½" to 4")*
Pressure Rating
PN16 / PN25 / PN40
Maximum Inlet Pressure
Up to 25 bar*
Adjustable Outlet Pressure
0.5 to 6 bar / 1 to 10 bar
Operating Temperature
0°C to +80°C
Body Material
Brass / Ductile Iron / Cast Steel / Stainless Steel
Piston Material
Stainless Steel / Engineering Polymer
Seat Material
Stainless Steel / NBR / EPDM
Product Gallery
Industries Served
Applications
Compressed Air
High-performance flow automation engineered for Compressed Air operations.
High Pressure
High-performance flow automation engineered for High Pressure operations.
Steam
High-performance flow automation engineered for Steam operations.
Water
High-performance flow automation engineered for Water operations.
Frequently Ask Questions
It is an automatic valve that reduces higher inlet pressure and maintains the downstream pressure at an adjustable preset value.
The adjustment range depends on the spring and valve design. Typical designs offer ranges such as 0.5–6 bar or higher.
Many direct-acting piston pressure reducing valves are self-actuated and operate using the pressure difference in the pipeline.
Differential pressure determines the hydraulic forces acting on the piston and must be considered when sizing the valve.
Stainless steel may be selected where improved corrosion resistance or process-fluid compatibility is required.
The piston responds to downstream pressure and changes the flow passage to maintain the required outlet pressure.
For common water-service piston PRVs, 0°C to +80°C is a typical published range.
It allows the outlet pressure to be matched to the requirements of downstream equipment and piping.
A properly selected pressure-reducing valve adjusts its opening to help maintain the required downstream pressure.
Yes, adjustable piston PRVs generally use an adjustment mechanism or spring setting to set the required downstream pressure.
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