Pressure Reducing Valve - PRV 25/2SG. Pressure Reducing Valve - PRV 25 IG

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1 Pressure Reducing Valve - PRV 25/2SG Direct Acting, Forged Steel Body with Soft Seat for Steam upto 180 C The ADCA PRV25/2S 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. Pressure Ranges Spring colour Blue* Yellow** Green Red Red.Press. bar *Applicable only on the PRW ; ** Applicable only on the PRV Where control spring ranges overlap,always use the lower range. Article no. Size Downstream Pressure Range /2" 0,14-1, /4" 0,14-1, " 0,14-1, /2" 1, /4" 1, " 1, /2" 3,5-8, /4" 3,5-8, " 3,5-8, METAL SEAT For higher temperatures FLANGED Pressure Reducing Valve - PRV 25 IG Direct Acting, Stainless Steel (CF8M) with Soft Seat for Steam upto 180 C The ADCA PRV25I 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. Pressure Ranges Spring colour Blue Yellow Green Red Red.Press. bar Article no. Size Downstream Pressure Range /2" 0,14-1, /4" 0,14-1, " 0,14-1, /2" 1, /4" 1, " 1, /2" 3,5-8, /4" 3,5-8, " 3,5-8, METAL SEAT For higher temperatures FLANGED PRV 25/2SG PRV 25IG 1 Valve Body P250GH / CF8M / Cover A216WCB / CF8M / * Seat AISI 316 / AISI 316 / * Gasket Copper Copper 5* Valve Hardened St.steel Hardened St.steel 5.1* O-ring NBR NBR 6* Valve Return Spring AISI 302 / AISI 302 / * Strainer Screen AISI 304 / AISI 304 / Cover Bolts Steel 8.8 Stainless Steel 12* Guide Bush AISI 316 / AISI 316 / * Plain Bearing Bronze Filled PTFE Bronze Filled PTFE 14* Bellows AISI 316 TI / AISI 316 TI / * Bellows Gasket ST.ST./ graphite ST.ST./ graphite 16* Adjustment Spring Steel Steel * Available spare parts 20

2 Pilot Operated Pressure Reducing Valves - PRV47 (Steel) PRV47I (St.Steel) The ADCA PRV47 pilot operated pressure reducing valves are designed for use on steam, compressed air, nitrogen and other gases compatible with the construction and they can be installed on pressure reducing stations throughout all industries. Connections are flanged or threaded. Installation Installation instructions are available (IMI-PRV47) and typical assembling drawing. Special assembling design may be produced on request. Size FLANGED PN40 Article no. DN15 - PN * 1, DN20 - PN * * Suffix with - 1, DN25 - PN * G = Green Spring 0.35 < 2.0 Barg 1, B = Blue Spring 1.5 < 5.0 Barg DN32 - PN * R = Red Spring 3.5 < 8.5 Barg 2, DN40 - PN * L = Black Spring 7.0 < 17.0 Barg 2, DN50 - PN * 2, THREADED BSPT DN15 - BSP * 1, DN20 - BSP * * Suffix with - 1, DN25 - BSP * G = Green Spring 0.35 < 2.0 Barg 1, B = Blue Spring 1.5 < 5.0 Barg DN32 - BSP * R = Red Spring 3.5 < 8.5 Barg 1, DN40 - BSP * L = Black Spring 7.0 < 17.0 Barg 2, DN50 - BSP * 2, UPTO 4" PRESSURE REDUCING 1 Valve Body S355J2G3 / ; P250GH / Pilot Valve Body CF8 / * Main Valve Seat AISI316 / * Main Valve Hardened St.steel 7* Piston Bronze B62 / ASTMB * Piston Rings Bronze / FKM / EPDM / NBR 10 Bottom Cover S355J2G3 / * Diaphragm AISI301 / * Available spare parts Pressure Ranges in bar SPRING COLOUR GREEN W/1 Diaphragm BLUE W/1 Diaphragm RED W/2 Diaphragms BLACK W/2 Diaphragms Red. Pressure 0,07 to 0,5 bar * 1,5 to 5,5 bar ** 3,5 to 8,5 bar ** 7 to 17 bar ** Red. Pressure 0,35 to 2 bar ** / / / * With low pressure top; **Standard diaphragm. 21

3 PRESSURE REDUCING Pressure Reducing Valve - RP45 The ADCA RP45 series pressure reducing valves are single seat bellows sealed controllers, operating without auxiliary energy, designed for use on steam, compressed air, industrial inert gases and liquids compatible with the construction. They are particularly suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant. Installation Recommendations RP45 is designed primarily for steam, compressed air and non inflammable gases. It has limited use for neutral liquids since the plug close in the same direction of the fluid flow, which can produce vibrations and water hammer when used at less than 20% of capacity. To avoid this, valve can be installed with the fluid direction against the plug under certain conditions. Please consult the factory. At service conditions where the temperature is more than 100ºC it is necessary to protect the diaphragm against overheating by using a seal pot. Never size the valve according to the pipe diameter in which it has to be fitted but according to the required actual flow. Pipe sizing must also respect the maximum recommended flow velocities according to the medium. Installation Service conditions less than 100ºC: with gases the valve is ready to work. In case of liquids the actuator must be filled completely with liquid, so, the vent screw (12) should be open till the water flow without bubbles. The valve can be installed with the diaphragm pointing upwards or downwards. Service conditions more than 100ºC: Fill the seal pot (11) using a funnel (14) until the water emerges from the actuator vent (12 ) without bubbles.close the actuator vent screw (12 ) and Typical Installation proceed filling the pot until the water reaches the top and close it with the plug. The valve is now ready to work. The valve must be installed with the diaphragm pointing downwards. Downstream pressure should be adjusted with the key (13). Compressing the spring, spring force increase and downstream pressure increase. Relaxing the spring, spring force decrease and downstream pressure decrease. The valve closes when the downstream pressure rises. Typical Installation tion 1 1A By-pass: if overpressure can not be accepted the use of by-pass is not recommended. In alternative, for critical process, two pressure reducing stations should be installed in parallel. PN ratings and materials according to the operating pressures. * The balance pipe connection is recommended to enter downstream pipe at a minimum of 1 meter from valve. Installation instructions are available (IMI-RP45) and typical assembling drawing. Special assembling designs may be produced on request. 22 Pressure reducing valve Water seal pot 2 Humidity separator 3 Steam trap 4 Sight glass 5 Y Strainer 6 Y Strainer 7 8 Check valve 9 9A 10 Safety valve 11 Gauge syphon 12 Gauge cock 13 Upsteam pressure gauge 14 Downstream pressure gauge

4 Pressure Reducing Valve - RP45 Threaded 1/2" 3/4" 1" Sp.Nr.66 Sp.Nr.66 Sp.Nr.66 A SPECIAL SPECIAL SPECIAL Sp.Nr.60 Sp.Nr.60 Sp.Nr.60 A , , , A , , , A , , , A , , , A , , , A , , , s include water seal pot and copper tube. 1 Valve body RP45S A 216 WCB / Valve body RP45I CF8M / Piston body RP45S GJS / Piston body RP45I GJS / Nickel plated 3 Valve seat HARDENED ST.STEEL 4* Valve disc HARDENED ST.STEEL 4* Soft valve disc AISI304/ ;NBR (PTFE/GR,etc) 5 Guide AISI 304 / * Bellows AISI 316 Ti / * Diaph.chamber RP45S GJL-250 / * Diaph. Chamber RP45I CF8M / Spindle AISI 304 / Regulating spring SPRING STEEL 10* Impulse line RP45S COPPER 10* Impulse line RP45I AISI 316 / * Cond. vessel a) RP45S S235JRG2 / * Cond. vessel a) RP45I AISI 316 / * Available spare parts. a) Not necessary when in operation with low temperature compressed air or water. Limiting Conditions RP45G RP45S RP45I RP45GT RP45ST RP45IT RP45GN* RP45SN* RP45IN* Body design conditions PN16 PN40 PN40 PN16 PN40 PN40 PN16 PN40 PN40 Max.upstream pressure 13 bar 25 bar 25 bar 13 bar 25 bar 25 bar 13 bar 25 bar 25 bar Max.downstream pressure ** 13 bar 13 bar 13 bar 13 bar 13 bar 13 bar 13 bar 13 bar 13 bar Min.downstream pressure 0,15 bar 0,15 bar 0,15 bar 0,15 bar 0,15 bar 0,15 bar 0,15 bar 0,15 bar 0,15 bar Max.operating temperature 200ºC 250ºC 250ºC 200 ºC 220 ºC 220 ºC 90 ºC 90 ºC 90 ºC Max.reducing ratio 25:1 25:1 25:1 25:1 25:1 25:1 10:1 10:1 10:1 Rangeability 10:1 10:1 10:1 10:1 10:1 10:1 10:1 10:1 10:1 Max.cold hydraulic test 24 bar 25 bar 25 bar 24 bar 25 bar 25 bar 24 bar 25 bar 25 bar Max.hyd. factory valve body test 24 bar 60 bar 60 bar 24 bar 60 bar 60 bar 24 bar 60 bar 60 bar *Suffix N: - a maximum turndown ratio 10:1 should be observed. Other soft materials on request. ** Others on request with bellows or piston actuator 23

5 RP45S - PN16 Pressure Reducing Valve - RP45S Flanged The ADCA RP45 series pressure reducing valves are single seat bellows sealed controllers, operating without auxiliary energy, designed for use on steam, compressed air, industrial inert gases and liquids compatible with the construction. They are particularly suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant. 1 Valve body RP45G and S A 216 WCB / Valve body RP45I CF8M / Piston body RP45G and S GJS / Piston body RP45I GJS / Nickel plated 3 Valve seat HARDENED ST.STEEL 4 * Valve disc HARDENED ST.STEEL 4 * Soft valve disc AISI304/ ;NBR (PTFE/GR,etc) 5 Guide AISI 304 / * Bellows AISI 316 Ti / * Diaph.chamber RP45G/S GJL-250 / * Diaph. Chamber RP45I CF8M / Spindle AISI 304 / Regulating spring SPRING STEEL 10 * Impulse line RP45G and S COPPER 10 * Impulse line RP45I AISI 316 / * Cond. vessel a) RP45S S235JRG2 / * Cond. vessel a) RP45I AISI 316 / * Available spare parts. a) Not necessary when in operation with low temperature compressed air or water. DN15 DN20 DN25 DN32 DN40 Sp.Nr.66 Sp.Nr.66 Sp.Nr.66 Sp.Nr.66 Sp.Nr.66 A SPECIAL SPECIAL SPECIAL SPECIAL SPECIAL Sp.Nr.60 Sp.Nr.60 Sp.Nr.60 Sp.Nr.60 Sp.Nr.60 A , , , , , A , , , , , A , , , , , A , , , , , A , , , , , A , , , , , A SPECIAL SPECIAL DN50 DN65 DN80 DN100 Sp.Nr.67 Sp.Nr.67 Sp.Nr.68 Sp.Nr.69 A SPECIAL SPECIAL A , , Sp.Nr.61 Sp.Nr.61 Sp.Nr.62 Sp.Nr.63 A , , A , , , , A , , A , A , A , , A , A , ACT. Sp.Nr.64 Sp.Nr.64 Sp.Nr.65 A , , A , , A , s include water seal pot and copper tube.