PRESSURE REDUCING VALVE DIRECT ACTING PRV 25/2 S Forged steel body. Saturated steam, compressed air and other gases compatible with the construction.
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1 PRESSURE REDUCING VALVE DIRECT ACTING PRV / S Forged steel body DESCRIPTION The PRV/S series direct acting pressure reducing valves are designed for use on steam, compressed air and other gases. They are suitable for reducing steam pressure at the point of use on laundry machines, dyeing, food industries, sterilizers, etc. Connections are female screwed or flanged. MAIN FEATURES Compact design. Bellows specially designed for high durability. Built-in strainer. OPTIONS: USE: AVAILABLE MODELS: RECOMMENDED APPLICATIONS : SIZES: CONNECTIONS: INSTALLATION: Regulating screw with top cap. Saturated steam, compressed air and other gases compatible with the construction. PRV/S metal to metal seating PRV/SG soft valve PRW/S soft valve balanced PRV/S steam and compressed air PRV/SG steam and compressed air where tight off is required PRW/S water, compressed air ½, ¾, 1 ; DN1, DN0 and DN. Female screwed ISO7/1Rp(BS 1). Flanged EN PN0 or ANSI. Horizontal installation. An Y strainer should be provided upstream the valve. See IMI, installation and maintenance instructions. CE MARKING (PED - European Directive 97//EC) PN Category DN 1 to SEP - art., paragraph VALSTEAM IS PR. E 07.07
2 LIMITING CONDITIONS PRV/S PRV/SG PRW/S Body design conditions Max.upstream pressure Max.downstream pressure Min.downstream pressure Max.design temperature Max.cold hydraulic test Max.reducing ratio PN PN PN 17 bar 17 bar 1 bar 8, bar 8, bar 8, bar 0,1 bar 0,1 bar 0, bar 10ºC 180ºC 7ºC 8 bar 8 bar 8 bar 10:1 10:1 10:1 CAPACITIES (See selection table) Valve Size 1 0 KVs 1,7,,1 DIMENSIONS (mm)-screwed EN109-1 Flanges SIZE DN A B C F WGT. Kgs D E WGT. Kgs 1/" ,7 10 7,, /" ,7 10,,8 1" ,, VALSTEAM IS PR. E 07.07
3 VALSTEAM IS PR. E 07.07
4 STEAM CAPACITY TABLE (Kg/h) COMPRESSED AIR CAPACITY TABLE ( Nm/h-0ºC-1,01bar ) WATER CAPACITY TABLE (m/h) INLET bar OUTLET bar SAT. STEAM INLET OUTLET COMPRESSED AIR D.P. WATER DN1 DN0 DN bar bar DN1 DN0 DN bar DN1 DN0 DN 0, 0, 7 8 1, , , , , , , , , , , 70 8, , , , , 18 19, , , , , , , , , 1 77, , , , , , ,9 1 81, 1 0, , , , , , , , , 9 8 1, , , , , , , , , , , , ,,1,18,8,,7,8,9,,7,,,,8,8,9,1, 7, 8,8 7, 8,7 1,8 9 10,7 VALSTEAM IS PR. E 07.07
5 PRESSURE REDUCING VALVE DIRECT ACTING PRVI Stainless steel (CF8M) DESCRIPTION The PRVI series direct acting pressure reducing valves are designed for use on steam, compressed air and other gases. They are suitable for reducing steam pressure at the point of use on laundry machines, dyeing, food industries, sterilizers, etc. Connections are female screwed or flanged. MAIN FEATURES Compact design. Bellows specially designed for high durability. Built-in strainer. OPTIONS: USE: AVAILABLE MODELS: RECOMMENDED APPLICATIONS : SIZES: CONNECTIONS: INSTALLATION: Regulating screw with top cap. Saturated steam, compressed air and other gases compatible with the construction. PRV I metal to metal seating PRVIG soft valve PRWI soft valve balanced PRVI steam and compressed air PRVIG steam and compressed air where tight off is required PRWI water, compressed air ½, ¾, 1 ; DN1, DN 0 and DN. Female screwed ISO7/1Rp(BS 1). Flanged EN PN0 or ANSI. Horizontal installation. An Y strainer should be provided upstream the valve. See IMI, installation and maintenance instructions. CE MARKING (PED - European Directive 97//EC) PN Category DN 1 to SEP - art., paragraph VALSTEAM IS PR.0 E 08.07
6 LIMITING CONDITIONS PRVI PRVIG PRWI Body design conditions Max.upstream pressure Max.downstream pressure Min.downstream pressure Max.design temperature Max.cold hydraulic test Max.reducing ratio PN PN PN 17 bar 17 bar 1 bar 8, bar 8, bar 8, bar 0,1 bar 0,1 bar 0, bar 10ºC 180ºC 7ºC 8 bar 8 bar 8 bar 10:1 10:1 10:1 CAPACITIES (See selection table) Valve Size 1 0 KVs 1,7,,1 PRESSURE RANGES Spring colour Blue * Yellow ** Green Red Red.Press. bar 0, - 1,7 0,1-1,7 1, -,0, - 8, *Applicable only on the PRW ; ** Appl.only on the PRV Where control spring ranges overlap,always use the lower range to give better control and precision. DIMENSIONS (mm)-screwed EN109-1 Flanges SIZE DN A WGT. B C F D Kgs E WGT. Kgs 1/" 9 8, ,, /" 9 8, , 1" 9 8, 17 7,9 10 7,, VALSTEAM IS PR.0 E 08.07
7 MATERIALS POS. DESIGNATION MATERIAL 1 VALVE BODY CF8M / 1.08 COVER CF8M / 1.08 *SEAT AISI 1 / 1.01 *GASKET COPPER *VALVE HARDENED ST.STEEL.1 *O-RING NBR. *VALVE HEAD NBR. *VALVE HEAD PTFE/GRAPHITE *VALVE RETURN SPRING AISI 0 / *STRAINER SCREEN AISI 0 / PUSHROD AISI 1 / BOTTOM CAP CF8M / *CAP GASKET ST.ST./ GRAPHITE 11 COVER BOLTS STAINLESS STEEL 1 *GUIDE BUSH AISI 1 / *BELLOWS AISI 1 TI / *BELLOWS GASKET ST.ST./ GRAPHITE 1 *ADJUSTMENT SPRING STEEL 17 TOP SPRING PLATE BRASS 18 ADJUSTMENT SCREW AISI 0 / LOCKNUT AISI 0 / HANDWHEEL PLASTIC 1 SPRING IDENT.PLATE ALUMINIUM * Available spare parts. VALSTEAM IS PR.0 E 08.07
8 STEAM CAPACITY TABLE (Kg/h) COMPRESSED AIR CAPACITY TABLE ( Nm/h-0ºC-1,01bar ) WATER CAPACITY TABLE (m/h) INLET bar OUTLET SAT. STEAM INLET OUTLET COMPRESSED AIR D.P. WATER bar DN1 DN0 DN bar bar DN1 DN0 DN bar DN1 DN0 DN 1, , , , , , , 1,,, ,,, 0, , 0, 0, 0, 0, , 0, 0, 0, 1, , 8 1,1,,9,,8,1,8,8,18,7,,,8, 7, 9,8,8,7,,9 7, 8,7 10, , , , 1 77, , , , , , ,9 1 81, 1 0, , , , , , , , , 9 8 1, , , , , , , , , , , , VALSTEAM IS PR.0 E 08.07
9 PRESSURE REDUCING VALVE DIRECT ACTING PRV/SS Stainless steel (barstock) DESCRIPTION The PRV/SS series direct acting pressure reducing valves are designed for use on steam, compressed air and other gases. They are suitable for reducing steam pressure at the point of use on laundry machines, dyeing, food industries, sterilizers, etc. Connections are female screwed or flanged. MAIN FEATURES Compact design. Bellows specially designed for high durability. Built-in strainer. OPTIONS: USE: AVAILABLE MODELS: RECOMMENDED APPLICATIONS : SIZES: CONNECTIONS: INSTALLATION: Regulating screw with top cap. Saturated steam, compressed air and other gases compatible with the construction. PRV/SS metal to metal seating PRV/SSG soft valve PRW/SS soft valve balanced PRV/SS steam and compressed air PRV/SSG steam and compressed air where tight off is required PRW/SS water, compressed air ½, ¾, 1 ; DN1, DN 0 and DN. Female screwed ISO7/1Rp(BS 1). Flanged EN PN0 or ANSI. Horizontal installation. An Y strainer should be provided upstream the valve. See IMI, installation and maintenance instructions. CE MARKING (PED - European Directive 97//EC) PN Category DN 1 to SEP - art., paragraph VALSTEAM IS PR.70 E 08.07
10 LIMITING CONDITIONS PRV/SS PRV/SSG PRW/SS Body design conditions Max.upstream pressure Max.downstream pressure Min.downstream pressure Max.design temperature Max.cold hydraulic test Max.reducing ratio PN PN PN 17 bar 17 bar 1 bar 8, bar 8, bar 8, bar 0,1 bar 0,1 bar 0, bar 10ºC 180ºC 7ºC 8 bar 8 bar 8 bar 10:1 10:1 10:1 CAPACITIES (See selection table) Valve Size 1 0 KVs 1,7,,1 Pmax. 17 bar Tmax. 10 ºC Vol. 0.0L Reg. VALSTEAM ENGINEERING, S.A. PORTUGAL PRESSURE RANGES Spring colour Blue * Yellow ** Green Red Red.Press. bar 0, - 1,7 0,1-1,7 1, -,0, - 8, *Applicable only on the PRW ; ** Appl.only on the PRV Where control spring ranges overlap,always use the lower range to give better control and precision. DIMENSIONS (mm)-screwed EN109-1 Flanges SIZE DN A WGT. B C D Kgs E WGT. Kgs 1/" , 10 7,, /" , 10,, 1" ,7 10 7, VALSTEAM IS PR.70 E 08.07
11 MATERIALS POS. DESIGNATION MATERIAL 1 VALVE BODY AISI 1 / 1.01 COVER AISI 1 / 1.01 SEAT AISI 1 (INTEGRAL) - - *VALVE HARDENED ST.STEEL.1 *O-RING NBR. VALVE HEAD NBR. *VALVE HEAD PTFE/GRAPHITE *VALVE RETURN SPRING AISI 0 / *STRAINER SCREEN AISI 0 / PUSHROD AISI 1 / BOTTOM CAP CF8M / *CAP GASKET PTFE *GUIDE BUSH AISI 1 / *STOP RING AISI 0 / *BELLOWS AISI 1 TI / *BELLOWS GASKET ST.ST./ GRAPHITE 1 *ADJUSTMENT SPRING STEEL 17 TOP SPRING PLATE BRASS 18 ADJUSTMENT SCREW AISI 0 / LOCKNUT AISI 0 / HANDWHEEL PLASTIC 1 SPRING IDENT.PLATE ALUMINIUM * Available spare parts. VALSTEAM IS PR.70 E 08.07
12 STEAM CAPACITY TABLE (Kg/h) COMPRESSED AIR CAPACITY TABLE ( Nm/h-0ºC-1,01bar ) WATER CAPACITY TABLE (m/h) INLET bar OUTLET SAT. STEAM INLET OUTLET COMPRESSED AIR D.P. WATER bar DN1 DN0 DN bar bar DN1 DN0 DN bar DN1 DN0 DN 1, , , , , , , 1,,, ,,, 0, , 0, 0, 0, 0, , 0, 0, 0, 1, , 8 1,1,,9,,8,1,8,8,18,7,,,8, 7, 9,8,8,7,,9 7, 8,7 10, , , , 1 77, , , , , , ,9 1 81, 1 0, , , , , , , , , 9 8 1, , , , , , , , , , , , VALSTEAM IS PR.70 E 08.07
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