Model PRV30

Product catalog summary

Basic Information
The document provides details about the PRV30 model, a self-operated pressure reducing valve with a piston. It has a Kv range of 2.0 to 3.0 m³/h·bar and a Cv range of 2.3 to 3.5 gpm·psi. The valve operates by closing when the outlet pressure increases. It is suitable for liquids, compressed air, neutral gases, and steam, with a temperature range of 0 to 220ºC (32 to 428ºF). The valve is available in sizes DN15, DN20, and DN25 (1/2”, 3/4”, and 1”) with flanged or threaded connections.

Materials
The valve components are made from various materials, including carbon steel (C.S.) and stainless steel (S.S.), with specific references to ANSI/ASTM and DIN/EN standards. Key parts include the body, seal screw, gasket, spring cover, and regulation screw, among others.

Dimensions and Kv
The document lists dimensions for different sizes of the valve, including DN (15, 20, 25 mm) and NPS (1/2”, 3/4”, 1”). The Kv values are 2.0, 2.5, and 3.0, while the Cv values are 2.3, 2.9, and 3.5. The weight for each size is approximately 2.5 kg.

Standard Configurations
The standard configurations include detailed measurements for EN and ANSI standards, such as A, H1, H2, D1, D2, D3, B, C, and the number of holes. The weight for each configuration is 5 kg.

Operation
The PRV30 operates through direct action, where the inlet pressure closes the valve due to section differences. Adjusting the regulating screw alters the outlet pressure. The valve maintains outlet pressure even when downstream flow is zero. Recommendations include leaving a space of 0.5 to 1 meter before the check valve for better compensation.

Standard Installations
The document outlines standard installations, including components like check valves, filters, inlet and outlet pressure manometers, and safety valves. It notes that the information is subject to change and advises users to verify technical data before use.

Catalog excerpts

Pressure Reducing Valve - Model PRV30BASIC INFORMATION Type Self-operated pressure reducing valve with piston Operation Valve tends to close when outlet pressure increases Model PRV30 Connections Flanged (DIN - ANSI) or Threaded (BSP - NPT) Ends RF - RF, NPT, BSP Kv Cv Temperature Inlet max. pressure Outlet pressure Suitable for 16 [barg] 0,2 - 9 [barg] Liquids, compressed air, neutral gases and steam GALILEO 8, POL. IND. CAN ESTELLA 08635 ST ESTEVE SESROVIRES, BARCELONA, SPAIN www.efSVaIVeS.c°m REV. 01/ 14 This information is subjected to changes

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Model PRV30 - Pressure Reducing Valve REV. 01/ 14 This information is subjected to changes GALILEO 8, POL. IND. CAN ESTELLA 08635 ST ESTEVE SESROVIRES, BARCELONA, SPAIN www.efsvalves.c°ITI

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Model PRV30 - Pressure Reducing Valve IMPORTANT NOTE: Kv or CV reduced is available In red color, sizes out of standards GALILEO 8, POL. IND. CAN ESTELLA 08635 ST ESTEVE SESROVIRES, BARCELONA, SPAIN www-efsvalves-c°m REV. 01/ 14 This information is subjected to changes

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Model PRV30 – Pressure Reducing Valve OPERATION PRV concept is direct action. Inlet pressure comes into the valve and closes it because of the sections difference. When we compress the spring (10) through the regulating screw (9), the stem-seal (11, 17 and 3) opens the valve and allows the regulation. When any downstream valve is closed and flow=0, PRV will absorb the oscillations and keep the outlet pressure according to the regulation. The valve closes when the downstream pressure exceeds the regulating set pressure. It is recommended to leave a space (between 0,5 and 1 meter) until the c heck...

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Model PRV30

Model PRV30

Catalog excerpts

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