Pressure Reducing Valve

Pressure Reducing Valve Manufacturer in Germany

Pressure reducing valves (PRVs) are used to maintain a controlled downstream pressure when the available supply pressure is higher than the pressure required by a process or piece of equipment. They automatically adjust the flow passage as demand changes, helping maintain a consistent outlet pressure across industrial piping and utility systems.

Our manufacturing range includes pressure reducing valves for steam, water, compressed air, nitrogen, industrial gases and compatible process fluids. These valves are used in power plants, chemical processing facilities, water distribution networks, industrial heating systems and general plant utilities.

Available configurations can be selected to suit the required inlet and outlet pressures, flow capacity, operating temperature and installation conditions.

Pressure Reducing Valve Types

Our range includes:

Direct Acting Pressure Reducing Valve

Pilot Operated Pressure Reducing Valve

Steam Pressure Reducing Valve

Water Pressure Reducing Valve

Gas Pressure Reducing Valve

Compressed Air Pressure Reducing Valve

High Pressure Reducing Valve

Pressure Reducing Valve Technical Specifications

Parameter	Technical Specification
Size Range	DN15–DN300
Pressure Rating	PN16, PN25, PN40 / ASME Class 150–600
Valve Design	Direct acting or pilot operated
Body Materials	Cast iron, ductile iron, ASTM A216 WCB carbon steel, ASTM A351 CF8/CF8M stainless steel and bronze for selected designs
Trim Materials	Stainless steel, bronze or suitable corrosion-resistant alloys
Diaphragm Materials	NBR, EPDM or other service-compatible materials
Seat and Seal Materials	NBR, EPDM, FKM, PTFE or metal seating, depending on service
End Connections	Flanged, threaded or butt-weld, depending on valve design
Pressure Adjustment	Adjustable downstream pressure within the selected regulator’s spring or pilot range
Controlled Media	Steam, water, compressed air, nitrogen, compatible industrial gases and process fluids
Flange Standards	EN 1092-1, EN 1092-2 or ASME B16.5, as applicable
Pressure Testing	EN 12266-1 or applicable project requirements
European Compliance	PED 2014/68/EU, where applicable

Specifications depend on the selected valve design and operating conditions. Available sizes, pressure ratings and material combinations should be confirmed for each application.

Downstream Pressure Regulation and Performance

A pressure reducing valve responds to changes in downstream pressure by adjusting the position of its regulating element. When system demand increases, the valve allows more flow. As demand decreases, it restricts the flow to maintain the selected outlet pressure.

The ability to maintain a consistent pressure depends on the valve’s regulating mechanism, available differential pressure and operating flow range.

Several performance characteristics should be considered during selection:

Downstream pressure adjustment range

Minimum and maximum flow capacity

Pressure droop or offset

Response to changing system demand

Minimum operating differential pressure

Shut-off performance

Pressure droop refers to the variation in regulated outlet pressure as flow demand changes. Its magnitude depends on the selected regulator and operating conditions.

For systems with considerable changes in flow demand, the valve must have sufficient capacity to maintain acceptable regulation at both minimum and maximum operating conditions.

Pressure Reducing Valve Sizing and Selection

Correct sizing is essential for reliable pressure regulation. Selecting a valve based only on pipeline diameter can lead to insufficient flow capacity, unstable pressure control or excessive noise.

The following operating data should be considered when selecting an industrial pressure reducing valve:

Selection Parameter	Required Information
Inlet Pressure	Minimum, normal and maximum supply pressure
Outlet Pressure	Required downstream pressure and acceptable variation
Flow Capacity	Minimum, normal and maximum flow rates
Process Medium	Type of fluid and relevant physical properties
Operating Temperature	Minimum and maximum process temperature
Flow Coefficient	Required Kv or Cv
Differential Pressure	Available pressure drop across the regulator
Turndown	Required operating flow range
Installation	Pipe size, connection type and available space

Applications involving substantial pressure reduction require additional consideration of flow velocity and fluid behavior.

For liquid service, cavitation can occur when local pressure falls below the fluid’s vapor pressure. In gas and steam applications, high pressure ratios may lead to choked flow and increased noise.

Where a single valve cannot accommodate the required pressure reduction or operating range, staged pressure reduction may be considered.

Pressure Reducing Valve Industries and Applications

Pressure reducing valves are installed in industrial systems where equipment or downstream piping requires a controlled supply pressure.

Industry	Typical Applications
Oil and Gas	Utility gas regulation, compressed air supply and auxiliary process systems
Petrochemical	Steam distribution, nitrogen supply and process utility pressure control
Power Generation	Boiler auxiliary steam, plant utilities and water pressure regulation
Chemical Processing	Process water, compressed air, industrial gases and heating systems
Water and Wastewater Treatment	Distribution networks, pumping stations and pressure management
HVAC and District Heating	Heating water, steam supply and utility pressure regulation
Marine and Shipbuilding	Steam, compressed air, freshwater and marine utility systems
Food and Pharmaceutical	Utility steam, process water and compressed air systems
General Manufacturing	Equipment supply pressure, industrial heating and plant utility networks

Pressure Reducing Valve Installation and Accessories

A pressure reducing valve should be installed in the specified flow direction, with sufficient access for adjustment, inspection and maintenance.

The piping arrangement may include upstream and downstream isolation valves, strainers, pressure gauges and associated pilot accessories. These components support routine monitoring and help protect the regulator from contaminants in the supply line.

Steam installations may require condensate separation and drainage, while water systems with significant pressure reduction should be assessed for cavitation and downstream piping conditions.

Where regulator failure could expose downstream equipment to excessive pressure, a separate overpressure protection arrangement may be necessary. A pressure reducing valve is intended for pressure regulation and should not be treated as a replacement for a suitably specified safety or relief device.