Catalog excerpts
Type Operation Model Connections Ends Ratings Sizes PARTS Pressure Reducing Valve - Model PRV44 Self-operated pressure reducing valve with bellows Valve tends to close when outlet pressure increases PRV44 Flanged (DIN - ANSI) or Threaded (BSP - NPT) RF - RF, NPT, BSP PN16 (150#) Kv Cv Temperature Inlet max. pressure Outlet pressure Suitable for 16 [barg] 0,2 - 8 [barg] Steam, compressed air, water and neutral gases 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
Open the catalog to page 1Model PRV44 - 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
Open the catalog to page 2Model PRV44 - 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
Open the catalog to page 3Model PRV44 – 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...
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