pressure reducing valves part 3

12
PRESSURE REDUCING VALVES 81 IS PR37.01 E 04.05 DESCRIPTION The ADCA PRV37 pilot operated pressure reducing valves are designed for use on steam, compressed air and other gases. They are suitable for pressure reducing stations throughout all industries. Connections are flanged DIN. Different connections are available on request. MAIN FEATURES Robust steel construction. Suitable for dead end conditions. OPTIONS: USE: AVAILABLE MODELS: SIZES: CONNECTIONS: INSTALLATION: CAPACITIES : Soft faced valve for air and gases. Special pressure top for low pressures. Regulating screw with top cap. Saturated steam,compressed air, and other gases (Group 2) compatible with the construction. PRV37/S - steel PRV37/SS - complete stainless steel construction. DN 15 to DN 50 . Flanged DIN. Special flanges upon request. Horizontal installation. A “Y” strainer, steam separator and steam trap should be provided upstream of the valve. Please consult or ask for selection table. LIMITING CONDITIONS Body design conditions : PN 25 PN 40 Maximum upstream pressure (steam) : 21 bar 25 bar Maximum upstream pressure (air) : 25 bar 31 bar Maximum downstream pressure : 17 bar 17 bar Minimum downstream pressure : 0,35 bar* 0,35 bar* Minimum operating temperature : -10 ºC -10 ºC Maximum operating temperature : 260 ºC 260 ºC Maximum cold hydraulic test : 40 bar 60 bar * 0,07 bar with low pressure top (limited at 7bar inlet). PRESSURE RANGES Spring colour Green Blue Red Black Red. pressure (bar) 0,35 – 2 1,5 – 5,5 3,5 – 8,5 7 – 17 It is preferable to select a spring range where the desired reduced pressure is at the upper end of range . USEFUL NOTES ON VALVE AND PIPE SIZING A special low pressure top assembly should be fitted for outlet pressures from 0,07 up to 0,35 bar. Two diaphragms must be fitted when reduced pressure is 10 bar and above. Two regulators in parallel should be used on larger sys- tems where minimum flow is less than 10% of maximum. If the flow is unknown it is possible to estimate it based on pipe size or equipment heat requirement-please consult. The balance pipe connection should enter downstream pipe at a minimum of 1 metre from valve.A spool piece can be supplied to house the balancing pipe. ORDER REQUIREMENTS: Type of fluid Maximum operating temperature Inlet pressure and required outlet pressure Capacity (maximum and minimum). We reserve the right to change the design and material of this product without notice. CE MARKING ( PED - European Directive 97/23/EC ) PN 25 : PN 40 : DN15 to DN32 DN15 to DN25 : SEP - Article 3, paragraph 3. DN40 to DN50 DN32 to DN50 : Category 1 ( CE marked ). Pilot Operated Pressure Reducing Valve Steam and Compressed Air PRV 37 ( DN15 - DN50 )

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Page 1: Pressure Reducing Valves Part 3

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PILOT OPERATED PRESSURE REDUCING VALVESTEAM AND COMPRESSED AIR

PRV 37 ( DN15 - DN50 )

IS PR37.01 E 04.05

DESCRIPTIONThe ADCA PRV37 pilot operated pressure reducing valves aredesigned for use on steam, compressed air and other gases.They are suitable for pressure reducing stationsthroughout all industries.Connections are flanged DIN. Different connectionsare available on request.MAIN FEATURESRobust steel construction.Suitable for dead end conditions.

OPTIONS:

USE:

AVAILABLEMODELS:

SIZES:CONNECTIONS:

INSTALLATION:

CAPACITIES :

Soft faced valve for air and gases.Special pressure top for low pressures.Regulating screw with top cap.Saturated steam,compressed air,and other gases (Group 2) compatible withthe construction.PRV37/S - steelPRV37/SS - complete stainless steel construction.DN 15 to DN 50 .Flanged DIN.Special flanges upon request.Horizontal installation.A “Y” strainer, steam separator andsteam trap should be provided upstreamof the valve.See IMI, installation and maintenanceinstructions.Please consult or ask for selection table.

LIMITING CONDITIONSBody design conditions : PN 25 PN 40Maximum upstream pressure (steam) : 21 bar 25 barMaximum upstream pressure (air) : 25 bar 31 barMaximum downstream pressure : 17 bar 17 barMinimum downstream pressure : 0,35 bar* 0,35 bar*Minimum operating temperature : -10 ºC -10 ºCMaximum operating temperature : 260 ºC 260 ºCMaximum cold hydraulic test : 40 bar 60 bar* 0,07 bar with low pressure top (limited at 7bar inlet).

PRESSURE RANGES

Spring colour Green Blue Red Black

Red. pressure (bar) 0,35 – 2 1,5 – 5,5 3,5 – 8,5 7 – 17

It is preferable to select a spring range where the desired reduced pressure is at the upper end of range .

USEFUL NOTES ON VALVE AND PIPE SIZINGA special low pressure top assembly should be fitted foroutlet pressures from 0,07 up to 0,35 bar.Two diaphragms must be fitted when reduced pressure is10 bar and above.Two regulators in parallel should be used on larger sys-tems where minimum flow is less than 10% of maximum.If the flow is unknown it is possible to estimate it basedon pipe size or equipment heat requirement-pleaseconsult.The balance pipe connection should enterdownstream pipe at a minimum of 1 metre from valve.Aspool piece can be supplied to house the balancing pipe.INSTALLATIONInstallation instructions are available (IMI - PRV37) andtypical assembling drawing .Special assembling designsmay be produced on request .

ORDER REQUIREMENTS:Type of fluidMaximum operating temperatureInlet pressure and required outlet pressureCapacity (maximum and minimum).

abcde

We reserve the right to change the design and material of this product without notice.Local regulations may restrict the use of this product below the conditions quoted.

CE MARKING ( PED - European Directive 97/23/EC )PN 25 : PN 40 :DN15 to DN32 DN15 to DN25 : SEP - Article 3, paragraph 3.DN40 to DN50 DN32 to DN50 : Category 1 ( CE marked ).

STEAM EQUIPMENT

Pilot Operated Pressure Reducing ValveSteam and Compressed AirPRV 37 ( DN15 - DN50 )

PILOT OPERATED PRESSURE REDUCING VALVESTEAM AND COMPRESSED AIR

PRV 37 ( DN15 - DN50 )

IS PR37.01 E 04.05

DESCRIPTIONThe ADCA PRV37 pilot operated pressure reducing valves aredesigned for use on steam, compressed air and other gases.They are suitable for pressure reducing stationsthroughout all industries.Connections are flanged DIN. Different connectionsare available on request.MAIN FEATURESRobust steel construction.Suitable for dead end conditions.

OPTIONS:

USE:

AVAILABLEMODELS:

SIZES:CONNECTIONS:

INSTALLATION:

CAPACITIES :

Soft faced valve for air and gases.Special pressure top for low pressures.Regulating screw with top cap.Saturated steam,compressed air,and other gases (Group 2) compatible withthe construction.PRV37/S - steelPRV37/SS - complete stainless steel construction.DN 15 to DN 50 .Flanged DIN.Special flanges upon request.Horizontal installation.A “Y” strainer, steam separator andsteam trap should be provided upstreamof the valve.See IMI, installation and maintenanceinstructions.Please consult or ask for selection table.

LIMITING CONDITIONSBody design conditions : PN 25 PN 40Maximum upstream pressure (steam) : 21 bar 25 barMaximum upstream pressure (air) : 25 bar 31 barMaximum downstream pressure : 17 bar 17 barMinimum downstream pressure : 0,35 bar* 0,35 bar*Minimum operating temperature : -10 ºC -10 ºCMaximum operating temperature : 260 ºC 260 ºCMaximum cold hydraulic test : 40 bar 60 bar* 0,07 bar with low pressure top (limited at 7bar inlet).

PRESSURE RANGES

Spring colour Green Blue Red Black

Red. pressure (bar) 0,35 – 2 1,5 – 5,5 3,5 – 8,5 7 – 17

It is preferable to select a spring range where the desired reduced pressure is at the upper end of range .

USEFUL NOTES ON VALVE AND PIPE SIZINGA special low pressure top assembly should be fitted foroutlet pressures from 0,07 up to 0,35 bar.Two diaphragms must be fitted when reduced pressure is10 bar and above.Two regulators in parallel should be used on larger sys-tems where minimum flow is less than 10% of maximum.If the flow is unknown it is possible to estimate it basedon pipe size or equipment heat requirement-pleaseconsult.The balance pipe connection should enterdownstream pipe at a minimum of 1 metre from valve.Aspool piece can be supplied to house the balancing pipe.INSTALLATIONInstallation instructions are available (IMI - PRV37) andtypical assembling drawing .Special assembling designsmay be produced on request .

ORDER REQUIREMENTS:Type of fluidMaximum operating temperatureInlet pressure and required outlet pressureCapacity (maximum and minimum).

abcde

We reserve the right to change the design and material of this product without notice.Local regulations may restrict the use of this product below the conditions quoted.

CE MARKING ( PED - European Directive 97/23/EC )PN 25 : PN 40 :DN15 to DN32 DN15 to DN25 : SEP - Article 3, paragraph 3.DN40 to DN50 DN32 to DN50 : Category 1 ( CE marked ).

STEAM EQUIPMENT

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We reserve the right to change the design and material of this product without notice.

DIMENSIONS (mm) DN A B C D E Kg

15 150 56 252 95 120 13 20 150 56 264 105 120 13,5 25 160 56 264 115 120 14 32 180 68 276 140 120 18 40 200 75 284 150 130 22 50 230 84 300 165 160 31 Face to face dimensions with DIN flanges .

MATERIALS ( PRV 37 )

POS. DESIGNATION MATERIAL

1 BODY ST 52.3 / C 22.8 2 PILOT VALVE BODY ST.STEEL 3 TOP COVER CK 45 3A COVER NUT CK 45 4 * MAIN VALVE SEAT ST. STEEL 5 * MAIN VALVE ST. STEEL 6 * MAIN VALVE SPRING ST.ST. AISI 302 7 * PISTON BRASS 8 PISTON RINGS BRONZE 9 PISTON LINER ST. STEEL 10 BOTTOM COVER ST 52.3 11 * BOTTOM COVER GASKET ST.ST./GRAPHITE 12 * DIAPHRAGM ST. STEEL 12A* DIAPHRAGM ST. STEEL 13 * DIAPHRAGM GASKET ST.STEEL/GRAPHITE 13A* DIAPHRAGM GASKET ST.STEEL/GRAPHITE 14 * PILOT VALVE GASKET ST.STEEL/GRAPHITE 15 LOWER SPRING CARRIER BRASS 16 * ADJUSTMENT SPRING STEEL 17 TOP SPRING CARRIER BRASS 18 SPRING IDENT.PLATE ALUMINIUM 19 * PILOT VALVE ST. STEEL 20 * PILOT VALVE SEAT ST. STEEL 21 * PILOT VALVE GASKET COPPER 22 * PILOT VALVE SPRING ST. STEEL 23 HANDWHEEL PLASTIC/ST.STEEL 23A LOCKNUT ST. STEEL 24 BOLTS STEEL 10.9 25 COMPRESSION FITTING PLATED CARBON STEEL 26 BALANCE PIPE COPPER 27 PILOT VALVE STRAINER ST.STEEL 28 SPOOL PIECE ST 35.8*Available spare parts.

Fig.1-Low pressure top

STEAM EQUIPMENT

IS PR37.01 E 04.05

VALSTEAM ADCA

DIMENSIONS (mm)

SIZE A B C D E WEIGHT

DN Kg

15 150 56 252 95 120 13

20 150 56 264 105 120 13.5

25 160 56 264 115 120 14

32 180 68 276 140 120 18

40 200 75 284 150 130 22

50 230 84 300 165 160 31

Face to face dimensions with DIN flanges .

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DESCRIPTIONThe ADCA PRV37 pilot operated pressure reducing valves aredesigned for use on steam, compressed air and other gases.They are suitable for pressure reducing stationsthroughout all industries.Connections are flanged DIN. Different connectionsare available on request.

MAIN FEATURESRobust steel construction.Suitable for dead end conditions.

OPTIONS:

USE:

AVAILABLEMODELS:

SIZES:CONNECTIONS:

INSTALLATION:

CAPACITIES :

Soft faced valve for air and gases.Special pressure top for low pressures.Regulating screw with top cap.Saturated steam,compressed air,and other gases (Group 2) compatible withthe construction.PRV37/S - steelPRV37/SS - complete stainless steel construction.DN 65 to DN 80 .Flanged DIN.Special flanges upon request.Horizontal installation.A “Y” strainer ,steam separator andsteam trap should be provided upstreamthe valve.See IMI,installation and maintenanceinstructions.Please consult or ask for selection table.

LIMITING CONDITIONSBody design conditions : PN 25Maximum upstream pressure (steam) : 21 barMaximum upstream pressure (air) : 25 barMaximum downstream pressure : 17 barMinimum downstream pressure : 0,35 bar*Minimum operating temperature : -10 ºCMaximum operating temperature : 260 ºCMaximum cold hydraulic test : 40 bar* 0,07 bar with low pressure top (limited at 7bar inlet).

PRESSURE RANGES

Spring colour Green Blue Red Black

Red. pressure (bar) 0,35 – 2 1,5 – 5,5 3,5 – 8,5 7 – 17

It is preferable to select a spring range where the desired reduced pressure is at the upper end of the range.

USEFUL NOTES ON VALVE AND PIPE SIZINGA special low pressure top assembly should be fitted foroutlet pressures from 0,07 up to 0,35 bar.Two diaphragms must be fitted when reduced pressure is10 bar and above.Two regulators in parallel should be used on larger sys-tems where minimum flow is less than 10% of maximum.If the flow is unknown it is possible to estimate it based onpipe size or equipment heat requirement-please consult.The balance pipe connection should enterdownstream pipe at a minimum of 1 metre from valve.Aspool piece can be supplied to house the balancing pipe.INSTALLATIONInstallation instructions are available (IMI - PRV37) andtypical assembling drawing .Special assembling designsmay be produced on request .

ORDER REQUIREMENTS:Type of fluidMaximum operating temperatureInlet pressure and required outlet pressureCapacity (maximum and minimum).

abcde

We reserve the right to change the design and material of this product without notice.Local regulations may restrict the use of this product below the conditions quoted.

CE MARKING ( PED - European Directive 97/23/EC )DN 65 to DN 80 : Category 1 ( CE marked ).

PILOT OPERATED PRESSURE REDUCING VALVESTEAM AND COMPRESSED AIR

PRV 37 ( DN65 - DN80 )

Pilot Operated Pressure Reducing ValveSteam and Compressed AirPRV 37 ( DN65 - DN80 )

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We reserve the right to change the design and material of this product without notice.

DIMENSIONS (mm) DN A B C D E Kg

65 290 105 340 185 220 49 80 310 120 370 200 240 65

Face to face dimensions with DIN flanges .

MATERIALS ( PRV 37 )

POS. DESIGNATION MATERIAL

1 BODY ST 52.3 / C 22.8 2 PILOT VALVE BODY ST 52.3 3 TOP COVER CK 45 3A COVER NUT CK 45 4 * MAIN VALVE SEAT ST. STEEL 5 * MAIN VALVE ST. STEEL 6 * MAIN VALVE SPRING ST.ST. AISI 302 7 * PISTON BRASS 8 PISTON RINGS BRONZE 9 PISTON LINER ST. STEEL 10 BOTTOM COVER ST 52.3 11 * BOTTOM COVER GASKET ST.ST./GRAPHITE 12 * DIAPHRAGM ST. STEEL 12A* DIAPHRAGM ST.STEEL 13 * DIAPHRAGM GASKET ST.STEEL/GRAPHITE 13A* DIAPHRAGM GASKET ST.STEEL/GRAPHITE 14 * PILOT VALVE GASKET ST.STEEL/GRAPHITE 15 LOWER SPRING CARRIER BRASS 16 * ADJUSTMENT SPRING STEEL 17 TOP SPRING CARRIER BRASS 18 SPRING IDENT.PLATE ALUMINIUM 19 * PILOT VALVE ST. STEEL 20 * PILOT VALVE SEAT ST. STEEL 21 * PILOT VALVE GASKET COPPER 22 * PILOT VALVE SPRING ST. STEEL 23 HANDWHEEL PLASTIC/ST.STEEL 23A LOCKNUT ST. STEEL 24 BOLTS STEEL 10.9 25 COMPRESSION FITTING PLATED CARBON STEEL 26 BALANCE PIPE COPPER 27 PRESSURE SENSING PIPE COPPER 28 SPOOL PIECE ST 35.8*Available spare parts.

Total length and size of Spool Piece to bedefined in case of order. Diferent pipeassemblies available on request .

Fig.1-Low pressure top

DIMENSIONS (mm)

SIZE A B C D E WEIGHT

DN Kg

65 290 105 340 185 220 49

80 310 120 370 200 240 65

Face to face dimensions with DIN flanges.

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We reserve the right to change the design and material of this product without notice.

Inlet Outlet DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100

0.7 0.35 40 75 125 190 280 480 --- --- ---

0.4 45 95 160 240 355 620 --- --- --- 1.0 0.6 40 83 140 210 308 535 --- --- ---

0.4 - 1 75 150 250 380 545 960 1490 1880 3384 2.0 1.2 65 138 230 345 515 900 1335 1685 3019

1.6 50 105 175 265 393 685 --- --- ---

0.4 - 1.5 100 200 335 510 750 1310 1980 2475 4358 3.0 2 85 170 290 450 660 1155 1732 2175 3961

2.2 80 165 277 416 613 1050 1585 1981 36142.6 60 127 203 315 467 818 --- --- ---

0.4 - 2 125 250 420 630 920 1580 2530 3170 56952.5 114 225 385 580 850 1465 2328 2923 5246

4.0 3.2 92 183 309 482 708 1205 1735 2179 39153.6 68 137 237 353 536 932 --- --- ---

0.4 - 2 150 310 512 755 1114 1895 3022 3765 67303 144 295 488 743 1095 1835 2869 3615 6486

5.0 4 115 225 373 578 846 1430 2130 2675 48504.2 105 213 343 525 770 1342 --- --- ---

0.4 - 3 175 355 602 919 1358 2298 3566 4453 80184 159 314 538 827 1217 2142 3219 4012 7225

6.0 5 119 250 411 637 941 1644 2276 2870 51475.2 109 217 360 568 839 1465 --- --- ---

0.4 - 3.5 197 410 670 1005 1540 2644 3959 4952 89125 178 358 587 908 1345 2306 3513 4405 7918

7.0 6 132 271 452 688 1027 1773 2764 3022 54186.2 122 251 416 635 934 1618 --- --- ---

0.4 - 4 225 471 778 1169 1759 3043 4605 5745 103905 221 339 730 1118 1659 2884 4305 5395 9704

8.0 6 192 385 639 976 1451 2513 3761 4704 84667 146 293 481 732 1085 1887 2527 3168 56947.2 137 274 453 692 1011 1782 --- --- ---

0.4 - 5 251 518 856 1325 1923 3358 5051 6334 113836 241 500 788 1222 1766 3095 4653 5794 10396

9.0 7 206 398 679 1068 1559 2676 4060 5051 89588 156 314 514 794 1142 2053 2671 3319 59888.2 145 292 483 741 1090 1888 --- --- ---

0.4 - 5 275 561 944 1468 2127 3718 5592 7031 123746 272 551 917 1419 2074 3619 5443 6830 123737 252 508 838 1268 1871 3249 4951 6187 10890

10 8 213 431 722 1118 1659 2831 4108 5149 92069 163 333 548 843 1244 2152 2721 3466 61879.2 150 298 493 756 1143 1929 --- --- ---

1.0 - 6 330 680 1124 1732 2541 4407 6631 8216 148498 311 629 1023 1575 2332 4034 6090 7573 13860

12 10 265 533 812 1271 1867 3202 4503 5592 990211 175 364 568 924 1350 2359 2920 3612 6531

1.0 - 8 408 839 1373 2138 3118 5403 8164 10393 18312 15 12 339 656 1068 1629 2441 4250 6385 7968 14352

14 199 401 662 1017 1503 2619 2968 3661 6432

1.0 - 9 425 863 1460 2178 3165 5343 9204 11360 19977 17 15 347 709 1190 1816 2694 4712 5870 7363 11564

16 207 416 717 1217 1608 2824 3598 4312 7977

1.0 - 12 541 1062 1774 2746 4001 6971 10390 13363 23758 20 15 459 931 1552 2335 3476 6184 9156 11382 20293

17 391 648 988 1748 2840 4698 6098 7628 9473

2.5 - 12 685 1337 2191 3360 4971 8392 12867 15837 29190 25 15 680 1320 2183 3356 4877 8284 12864 15830 29197

17 641 1256 2084 3156 4670 7866 12369 14837 27718

28 5.0 - 15 781 1521 3355 3864 5611 9862 14838 18311 3315817 763 1471 3259 3768 5506 9652 14348 17818 32661

STEAM CAPACITY TABLE - PRV 37

PRESSURE SATURATED STEAM bar Kg/h

Superheated steam - the capacities in the table must be reduced by multiplying by the following factors:Degrees of superheat 10º C 50º C 100º C 150º CMultiplying factor 0,96 0,93 0,87 0,82

IS . PR37.10 E 06.02

VALSTEAM ADCA

STEAM EQUIPMENT

Steam Capacity Table – PRV 37

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PRESSURE COMPRESSED AIR bar Nm3/h - 0º C - 1,013 bar

Inlet Outlet DN 15 DN 20 DN 25 DN 32 DN 40 DN 50

0.7 0.35 15 31 50 70 111 191

1.0 0.4 16 33 51 79 113 1940.6 27 55 90 138 199 343

0.4 - 1 60 122 201 307 444 763 2.0 1.2 54 109 180 276 399 686

1.6 45 91 150 230 333 572

0.4 - 1.5 120 240 300 460 666 1150 3.0 2 105 210 251 384 555 1050

2.2 48 93 152 232 334 5702.6 45 61 101 154 223 384

0.4 - 2 150 238 499 739 1089 18252.5 135 208 449 568 978 1635

4.0 3.2 119 177 398 492 867 14443.6 60 124 202 154 444 763

0.4 - 2 180 360 505 768 1110 19083 165 330 556 691 997 1716

5.0 4 151 298 404 613 885 15264.2 136 285 383 582 840 1449

0.4 - 3 210 468 696 1046 1523 25804 195 437 646 969 1412 2389

6.0 5 150 345 494 738 1079 18175.2 135 315 443 664 968 1627

0.4 - 3.5 240 480 804 1200 1740 29895 210 421 701 1046 1524 2640

7.0 6 150 301 499 756 1104 18296.2 105 211 349 529 773 1280

0.4 - 4 270 546 798 1353 1746 34115 265 516 747 1276 1635 3220

8.0 6 225 449 710 1125 1635 27627 180 361 600 892 1296 21847.2 156 312 540 768 1128 1978

0.4 - 5 301 612 1011 1507 2244 37896 270 553 910 1359 1980 3474

9.0 7 240 492 816 1230 1798 29708 180 360 598 903 1288 22478.2 165 329 547 826 1176 2056

0.4 - 5 330 659 1116 1692 2412 41736 314 628 1065 1615 2301 39837 288 599 1004 1503 2202 3810

10 8 240 492 806 1212 1770 30229 192 360 658 898 1350 22809.2 181 342 628 852 1283 2165

1.0 - 6 390 792 1300 1978 2844 49178 360 732 1219 1827 2622 4497

12 10 270 553 910 1359 1980 347411 210 468 696 1046 1523 2580

1.0 - 8 480 972 1602 2427 3564 6072 15 12 375 762 1272 1923 2784 4692

14 255 528 889 1332 1896 3398

1.0 - 9 540 912 1819 2737 3984 6818 17 15 315 708 1179 1764 2520 4418

16 255 528 889 1332 1896 3398

1.0 - 12 615 1254 2379 3153 4578 7911 20 15 534 900 1799 2707 3940 6738

17 450 901 1497 2246 3336 5796

2.5 - 12 780 1590 2689 3982 5790 9902 25 15 756 1530 2548 3828 5616 9600

17 720 1464 2412 3707 5310 9123

5.0 - 15 870 1770 2910 4430 6390 10950 28 17 840 1724 2820 4320 6180 10680

COMPRESSED AIR CAPACITY TABLE - PRV 37

For compressed air capacities on sizes DN 65 - DN 100 ,please consult factory.

VALSTEAM ADCAIS . PR37.10 E 06.02

STEAM EQUIPMENT

Compressed Air Capacity Table – PRV 37

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PRESSURE REDUCING VALVE PISTON SENSING

PRV 41 DN 1/4”-1/2”

IS PR41.01 E 01.06

DESCRIPTIONThe ADCA PRV41 series direct acting, springloadedpiston sensing, balanced valve pressure reducingvalves, are designed for use with compressed air and waterand other gases or liquids compatible with the materialsof construction.They are suitable for pressure reducing stations at thepoint of use on different industrial applications.Connections are female screwed or flanged.

MAIN FEATURESCompact design.Balanced valve.Machined from barstock materials.

OPTIONS:

USE:

AVAILABLEMODELS:SIZES:

CONNECTIONS:

INSTALLATION:

Different soft valves for water and gases.Relieving-Internal relief valve to allow reductionof the outlet pressure in a no-flow condition .Built-in strainer.Outlet 1/4” gauge connection on body.Regulating screw with top cap.

Compressed air, water and other gases andliquids compatible with the construction.

PRV41/SS – Stainless steel .

DN 1/4” - DN 1/2”DN 10 - DN 15

Female screwed ISO7/1Rp(BS 21)or NPT. Flanged DIN.Special flanges upon request.Horizontal or vertical installation.A “Y” strainer should be provided upstreamof the valve.See IMI, installation and maintenanceinstructions

LIMITING CONDITIONS :Body design conditions : PN 300Maximum upstream pressure : 220 barMaximum downstream pressure : 50 barMinimum downstream pressure : 3 barMaximum design temperature : 200 ºCKvs : 1,5 m3/h(with DN 1/2” ported unit only).

Different conditions available on request .

MATERIALS :Body and Springhousing : stainless steel .Internals : stainless steelValve seals : stainless steel, teflon, viton,etc

ORDER REQUIREMENTS :Type of fluidMaximum operating temperatureInlet pressure and required outlet pressureCapacity (maximum and minimum).

abcde

Produced in accordance with Article 3, paragraph 3 of the PED - European Pressure Equipment Directive - 97/23/EC.Produzido em conformidade com o Artigo 3º, parágrafo 3 da PED -Directiva Europeia 97/23/EC ( Decreto-Lei 211/99 ) .

We reserve the right to change the design and material of this product without notice.VALSTEAM ADCA

STEAM EQUIPMENTPressure Reducing Valve Piston Sensing PRV 41 DN 1/4”-1/2”

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We reserve the right to change the design and material of this product without notice.

DIMENSIONS (mm)

SCREWED ENDS DIN FLANGES

DN A B C Kg D E Kg

3/8” 80 35 200 2,7 150 47,5 4,1 1/2” 80 35 200 2,7 150 52,5 4,7

MATERIALS

POS. DESIGNATION MATERIAL

1 BODY STAINLESS STEEL 1A PISTON HOUSING STAINLESS STEEL 2 TOP COVER STAINLESS STEEL 3 SEAT COVER STAINLESS STEEL 4 * O-RING NBR 5 * PISTON VALVE ST.ST. AISI 304 6 * VALVE HEAD NBR 6A PUSHROD ST.STEEL 6B SEAT ST.STEEL 7 * O-RING NBR 8 * VALVE SPRING ST.STEEL 8A TOP SPRING PLATE ST.ST. AISI 304 9 PISTON ST.STEEL 9A O-RING NBR 11A O-RING NBR 12 GASKET ALUMINIUM 13 SPRING PLATE STEEL 15 * ADJUSTMENT SPRING STEEL 16 TOP SPRING PLATE BRASS 17 ADJUSTMENT SCREW ST.ST. AISI 304 18 LOCKNUT ST.ST. AISI 304 19 HANDWHEEL PLASTIC 20 SPRING IDENT. PLATE ALUMINIUM

*Available spare parts.

Remarks : All valves have a serial number . In case ofnon-standard valves this number must be supplied ifspare parts are ordered .

VALVE CODES - ORDERING INFORMATION

VALSTEAM ADCAIS PR41.01 E 01.06

STEAM EQUIPMENT

DIMENSIONS (mm)

Screwed Ends Din Flanges

SIZE A B C WEIGHT D E WEIGHT

DN Kg Kg

3/8” 80 35 200 2.7 150 47.5 4.1

1/2” 80 35 200 2.7 150 52.5 4.7

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Pressure Reducing Valve For SteamRP 16

MATERIALS

POS. DESIGNATION MATERIAL

1 BODY (PN16) GG 25

2 YOKE C 40

3 VALVE SEAT ST.STEEL

4 VALVE DISC ST.STEEL

5 GUIDE ST. STEEL

6 * O-RINGS NBR

7 * DIAPHRAGM CHAMBER GG25

8 SPINDLE ST.STEEL

9 SPRING SPRING STEEL

10 * IMPULSE LINE COPPER

11 * CONDENSATE VESSEL STEEL

* Available spare parts. DIMENSIONS (mm)

VALVE ACTUATOR

DN A B Kg TYPE C Kg

15 130 440 12.7 A1 172 4.3

20 150 440 12.7 A11 172 4.3

25 160 440 13.7 A2 220 7.3

32 180 445 15.7 A21 220 7.3

40 200 445 17.7 A3 282 11.3

50 230 540 25.7 A4 340 16.3

DN 15 20 25 32 40 50

Kvs 2 3,5 5 9 12 22

PRESSURE REDUCING VALVE FOR STEAM RP 16

IS . RP16.10 E 05.05We reserve the right to change the design and material of this product without notice.

DESCRIPTIONThe ADCA RP16 series pressure reducing valves are self-actuated direct action proportional action type, operating withoutauxiliary energy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant .Connections are flanged.

USE:

AVAILABLEMODELS:SIZES:CONNECTIONS:INSTALLATION:

Saturated steam,compressed airand other gases compatible withthe construction.

RP16DN 15 to DN 50Flanged DINHorizontal installation.An “Y” strainer , steam separatorand steam trap should be providedupstream the valve.See IMI, installation andmaintenance instructions.

Local regulations may restrict the use of this product to below the conditions quoted.

MATERIALSPOS. DESIGNATION MATERIAL

1 BODY (PN16) GG 25 2 YOKE C 40 3 VALVE SEAT ST.STEEL 4 VALVE DISC ST.STEEL 5 GUIDE ST.STEEL 6 * O-RINGS NBR 7 * DIAPHRAGM CHAMBER GG25 8 SPINDLE ST.STEEL 9 SPRING SPRING STEEL 10 * IMPULSE LINE COPPER 11 * CONDENSATE VESSEL STEEL

DIMENSIONS (mm) VALVE ACTUATOR DN A B Kg TYPE C Kg 15 130 440 12,7 A1 172 4,3 20 150 440 12,7 A11 172 4,3 25 160 440 13,7 A2 220 7,3 32 180 445 15,7 A21 220 7,3 40 200 445 17,7 A3 282 11,3 50 230 540 25,7 A4 340 16,3

* Available spare parts.

LIMITING CONDITIONSBody design conditions : PN 16Maximum upstream pressure (steam) : 13 barMaximum downstream pressure : 13 barMinimum downstream pressure : 0,5 barMaximum operating temperature : 200 ºCMaximum reducing ratio : 5 : 1Maximum cold hydraulic test : 24 barMax.hydraulic factory valve body test: 24 bar

DN 15 20 25 32 40 50Kvs 2 3,5 5 9 12 22

abcde STEAM EQUIPMENT

VALSTEAM ADCA

MAIN FEATURESUSE: Saturated steam,compressed air and other

gases compatible with the construction.AVAILABLEMODELS: RP16SIZES: DN 15 to DN 50CONNECTIONS: Flanged DININSTALLATION: Horizontal installation. A “Y” strainer, steam separator and steam

trap should be provided upstream the valve.

LIMITING CONDITIONSBody design conditions : PN 16Maximum upstream pressure (steam) : 13 barMaximum downstream pressure : 13 barMinimum downstream pressure : 0,5 barMaximum operating temperature : 200 oCMaximum reducing ratio : 5 : 1Maximum cold hydraulic test : 24 barMax.hydraulic factory valve body test: 24 bar

PRESSURE REDUCING VALVE FOR STEAM RP 16

IS . RP16.10 E 05.05We reserve the right to change the design and material of this product without notice.

DESCRIPTIONThe ADCA RP16 series pressure reducing valves are self-actuated direct action proportional action type, operating withoutauxiliary energy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant .Connections are flanged.

USE:

AVAILABLEMODELS:SIZES:CONNECTIONS:INSTALLATION:

Saturated steam,compressed airand other gases compatible withthe construction.

RP16DN 15 to DN 50Flanged DINHorizontal installation.An “Y” strainer , steam separatorand steam trap should be providedupstream the valve.See IMI, installation andmaintenance instructions.

Local regulations may restrict the use of this product to below the conditions quoted.

MATERIALSPOS. DESIGNATION MATERIAL

1 BODY (PN16) GG 25 2 YOKE C 40 3 VALVE SEAT ST.STEEL 4 VALVE DISC ST.STEEL 5 GUIDE ST.STEEL 6 * O-RINGS NBR 7 * DIAPHRAGM CHAMBER GG25 8 SPINDLE ST.STEEL 9 SPRING SPRING STEEL 10 * IMPULSE LINE COPPER 11 * CONDENSATE VESSEL STEEL

DIMENSIONS (mm) VALVE ACTUATOR DN A B Kg TYPE C Kg 15 130 440 12,7 A1 172 4,3 20 150 440 12,7 A11 172 4,3 25 160 440 13,7 A2 220 7,3 32 180 445 15,7 A21 220 7,3 40 200 445 17,7 A3 282 11,3 50 230 540 25,7 A4 340 16,3

* Available spare parts.

LIMITING CONDITIONSBody design conditions : PN 16Maximum upstream pressure (steam) : 13 barMaximum downstream pressure : 13 barMinimum downstream pressure : 0,5 barMaximum operating temperature : 200 ºCMaximum reducing ratio : 5 : 1Maximum cold hydraulic test : 24 barMax.hydraulic factory valve body test: 24 bar

DN 15 20 25 32 40 50Kvs 2 3,5 5 9 12 22

abcde STEAM EQUIPMENT

VALSTEAM ADCA

DESCRIPTIONThe ADCA RP16 series pressure reducing valves are self-actuated direct action proportional action type, operating without auxiliary energy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant.Connections are flanged.

Page 10: Pressure Reducing Valves Part 3

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ACTUATOR AND SPRING SELECTION TABLE

VALVE Kvs ACTUATOR

DN m3/h A -4 A -3 A -2 A -21 A -1 A -11 15 2 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 20 3,5 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 25 5 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 32 9 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 40 12 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 50 22 Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13 Spring Nr. 61 61 61 61 64 64

Valve selection : Please use the formulas mentioned on Valve Sizing IS.PV16G.55 E 01.05

How to order : RP16 DN 40 PN 16 valve complete with spring Nr.60 ,type A-21 actuator,condensate vesseland copper tube impulse line.Remarks:For superheated steam and pressures above 13 bar , please consult.For determination of upstream and downstream pipe sizes please consult.

TYPICAL INSTALLATION

MATERIALS ( RP 16 )

POS. DESIGNATION MODEL

1 PRESSURE REDUCING VALVE RP 16 1A WATER SEAL POT STEEL 2 HUMIDITY SEPARATOR S 25 3 STEAM TRAP FLT SERIES 4 SIGH GLASS SW 12 5 STRAINER IS 16 6 STRAINER IS16F 7 STOP VALVE GLOBE TYPE 8 CHECK VALVE GLOBE TYPE 9 STOP VALVE GLOBE OR GATE TYPE 9B STOP VALVE GLOBE OR GATE TYPE 10 SAFETY VALVE ---- 11 COIL ---- 12 GAUGE COCK ---- 13 UPSTREAM PRESSURE GAUGE ---- 14 DOWNSTREAM PRESSURE GAUGE ----

STEAM EQUIPMENT

ACTUATOR AND SPRING SELECTION TABLE

VALVE Kvs ACTUATOR

DN m3/h A -4 A -3 A -2 A -21 A -1 A -11

15 2 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

20 3,5 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

25 5 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

32 9 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

40 12 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

50 22 Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13

Spring Nr. 61 61 61 61 64 64

* 1 MTRS OR 15 PIPE DIVERTERS MINIMUM

Page 11: Pressure Reducing Valves Part 3

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PRESSURE REDUCING VALVE FOR STEAM RP 45

IS . RP45.11 E 04.05We reserve the right to change the design and material of this product without notice.

DESCRIPTIONThe ADCA RP45 series pressure reducing valves are single seat bellows sealed controllers, operating without auxiliaryenergy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant .Connections are flanged.

MAIN FEATURESBellows specially designed for high durability.

USE:

AVAILABLEMODELS:SIZES:CONNECTIONS:INSTALLATION:

Saturated steam,compressed airand other gases compatible withthe construction.

RP45DN 15 to DN 100Flanged DINHorizontal installation.An “Y” strainer , steam separatorand steam trap should be providedupstream the valve.See IMI, installation andmaintenance instructions.

Local regulations may restrict the use of this product to below the conditions quoted.

MATERIALSPOS. DESIGNATION MATERIAL

1 BODY (PN16) GG-25 1 BODY (PN40) GS-C 25 2 PISTON BODY GGG40 3 VALVE SEAT ST.STEEL 4 VALVE DISC ST.STEEL 5 GUIDE ST.STEEL 6 * BELLOWS ST.STEEL 7 * DIAPHRAGM CHAMBER GG25 8 SPINDLE ST.STEEL 9 SPRING SPRING STEEL 10 * IMPULSE LINE COPPER 11 * CONDENSATE VESSEL STEEL

DIMENSIONS (mm) VALVE ACTUATOR DN A B Kg TYPE C Kg 15 130 440 12,7 A1 172 4,3 20 150 440 12,7 A11 172 4,3 25 160 440 13,7 A2 220 7,3 32 180 445 15,7 A21 220 7,3 40 200 445 17,7 A3 282 11,3 50 230 540 25,7 A4 340 16,3 65 290 540 29,7 80 310 610 36,7 100 350 650 53,7

* Available spare parts.

LIMITING CONDITIONSBody design conditions : PN 16 PN 40Maximum upstream pressure (steam) : 13 bar 25 barMaximum downstream pressure : 13 bar 13 barMinimum downstream pressure : 0,15 bar 0,15 barMaximum operating temperature : 250 ºC 250 ºCMaximum reducing ratio : 25 : 1 25 : 1Maximum cold hydraulic test : 24 bar 25 barMax.hydraulic factory valve body test: 24 bar 60 bar

abcde STEAM EQUIPMENT

VALSTEAM ADCA

Pressure Reducing Valve for SteamRP 45

MATERIALS

POS. DESIGNATION MATERIAL

1 BODY (PN16) GG-25

1 BODY (PN40) GS-C 25

2 PISTON BODY GGG40

3 VALVE SEAT ST.STEEL

4 VALVE DISC ST.STEEL

5 GUIDE ST.STEEL

6 * BELLOWS ST.STEEL

7 * DIAPHRAGM CHAMBER GG25

8 SPINDLE ST.STEEL

9 SPRING SPRING STEEL

10 * IMPULSE LINE COPPER

11 * CONDENSATE VESSEL STEEL

* Available spare parts.

DIMENSIONS (mm)

VALVE ACTUATOR

DN A B Kg TYPE C Kg

15 130 440 12.7 A1 172 4.3

20 150 440 12.7 A11 172 4.3

25 160 440 13.7 A2 220 7.3

32 180 445 15.7 A21 220 7.3

40 200 445 17.7 A3 282 11.3

50 230 540 25.7 A4 340 16.3

65 290 540 29.7

80 310 610 36.7

100 350 650 53.7

MAIN FEATURESBellows specially designed for high durability.

USE: Saturated steam,compressed air and other gases compatible with the construction.

AVAILABLEMODELS: RP45SIZES: DN 15 to DN 100CONNECTIONS: Flanged DININSTALLATION: Horizontal installation. A “Y” strainer, steam separator and

steam trap should be provided upstream the valve.

LIMITING CONDITIONSBody design conditions : PN 16 PN 40Maximum upstream pressure (steam) : 13 bar 25 barMaximum downstream pressure : 13 bar 13 barMinimum downstream pressure : 0,15 bar 0,15 barMaximum operating temperature : 250°C 250°CMaximum reducing ratio : 25 : 1 25 : 1Maximum cold hydraulic test : 24 bar 25 barMax.hydraulic factory valve body test: 24 bar 60 bar

DESCRIPTIONThe ADCA RP45 series pressure reducing valves are single seat bellows sealed controllers, operating without auxiliary energy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant .Connections are flanged.

PRESSURE REDUCING VALVE FOR STEAM RP 45

IS . RP45.11 E 04.05We reserve the right to change the design and material of this product without notice.

DESCRIPTIONThe ADCA RP45 series pressure reducing valves are single seat bellows sealed controllers, operating without auxiliaryenergy,designed for use on steam, compressed air and other gases.They are suitable for reducing steam pressure in all energy and process systems where pressures should be kept constant .Connections are flanged.

MAIN FEATURESBellows specially designed for high durability.

USE:

AVAILABLEMODELS:SIZES:CONNECTIONS:INSTALLATION:

Saturated steam,compressed airand other gases compatible withthe construction.

RP45DN 15 to DN 100Flanged DINHorizontal installation.An “Y” strainer , steam separatorand steam trap should be providedupstream the valve.See IMI, installation andmaintenance instructions.

Local regulations may restrict the use of this product to below the conditions quoted.

MATERIALSPOS. DESIGNATION MATERIAL

1 BODY (PN16) GG-25 1 BODY (PN40) GS-C 25 2 PISTON BODY GGG40 3 VALVE SEAT ST.STEEL 4 VALVE DISC ST.STEEL 5 GUIDE ST.STEEL 6 * BELLOWS ST.STEEL 7 * DIAPHRAGM CHAMBER GG25 8 SPINDLE ST.STEEL 9 SPRING SPRING STEEL 10 * IMPULSE LINE COPPER 11 * CONDENSATE VESSEL STEEL

DIMENSIONS (mm) VALVE ACTUATOR DN A B Kg TYPE C Kg 15 130 440 12,7 A1 172 4,3 20 150 440 12,7 A11 172 4,3 25 160 440 13,7 A2 220 7,3 32 180 445 15,7 A21 220 7,3 40 200 445 17,7 A3 282 11,3 50 230 540 25,7 A4 340 16,3 65 290 540 29,7 80 310 610 36,7 100 350 650 53,7

* Available spare parts.

LIMITING CONDITIONSBody design conditions : PN 16 PN 40Maximum upstream pressure (steam) : 13 bar 25 barMaximum downstream pressure : 13 bar 13 barMinimum downstream pressure : 0,15 bar 0,15 barMaximum operating temperature : 250 ºC 250 ºCMaximum reducing ratio : 25 : 1 25 : 1Maximum cold hydraulic test : 24 bar 25 barMax.hydraulic factory valve body test: 24 bar 60 bar

abcde STEAM EQUIPMENT

VALSTEAM ADCA

Page 12: Pressure Reducing Valves Part 3

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CAPACITY TABLE FOR SATURATED STEAM Kg/h

INLET PRESSURE VALVE SIZE bar DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100

0,5 51 68 90 118 186 300 460 800 1250 0,75 63 84 112 146 230 360 580 1000 1550

1 75 100 133 175 280 430 700 1200 1850 1,5 100 133 175 240 360 590 910 1600 2500 2 126 170 230 290 450 730 1160 2000 3050 2,5 150 200 260 350 550 880 1390 2400 3600 3 175 240 310 400 640 1010 1600 2700 4300 4 220 290 390 510 800 1300 2000 3400 5400 5 260 350 480 620 1000 1600 2500 4200 6500 6 330 440 580 760 1220 1930 3000 5100 8000 7 400 520 700 910 1430 2300 3600 6100 9500 8 450 600 800 1040 1670 2700 4100 7100 11000 9 500 670 880 1180 1800 2900 4600 7800 12000 10 560 750 980 1300 2000 3200 5100 8500 13500 12 680 900 1180 1540 2500 4000 6100 10500 16300 14 800 1050 1400 1850 2900 4700 7200 12600 19000 16 920 1230 1630 2150 3400 5500 8300 14600 22000 18 1040 1400 1860 2450 3800 6200 9500 16600 25000 20 1170 1540 2100 2700 4200 7000 10800 18600 28000 22 1330 1780 2350 3050 4900 7800 12200 21000 32000 24 1500 2000 2600 3400 5400 8700 13700 23500 36000 25 1600 2150 2800 3600 5700 9200 14500 25500 38000

ACTUATOR AND SPRING SELECTION TABLE

VALVE Kvs ACTUATOR

DN m3/h A -4 A -3 A -2 A -21 A -1 A -11 15 4,8 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 20 6,9 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 25 9,1 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 32 11,8 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 40 14,4 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13 Spring Nr. 60 60 60 60 60 60 50 26,5 Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13 Spring Nr. 61 61 61 61 64 64 65 51,5 Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13 Spring Nr. 61 61 61 61 64 64 80 79,5 Outlet (bar) 0,46-0,99 1,0-1,9 2,0-5,0 5,1-8,9 9,0-13 ------ Spring Nr. 62 62 62 62 65100 129,5 Outlet (bar) 0,46-0,99 1,0-1,9 2,0-6,0 6,1-13 ------ ------

Spring Nr. 63 63 63 63Correction factors: Correction factors must also be used for certain pressure ratios as follows:

Remarks: The pressures have to be inserted in barg . No correction factor should be used for smaller pressure ratios than 0,7Example (valve selection): Saturated steam capacity 300 Kg/h ; Upstream pressure:3 bar ; Downstream pressure required : 2 bar

Solution :First determine correction factor for pressure ratio 1,25f0,751312

=®=++

Go to 3 bar in the column “bar” of the capacity table. By following the horizontal line you can find out the values for selectionof pressure reducing valve.Looking for an equal or higher value than 300 Kg/h. In this case it will be 400Kg/h.Now, go to the top of the table and read off the nominal size : DN 32.On the actuator and spring selection table, for downstream pressure of 2 bar we may see that the recomendedactuator is type A-2 , considering the valve supplied with spring Nr.60.How to order : RP45 DN 32 PN 16 valve complete with spring Nr.60 ,type A-2 actuator,condensate vessel and copper tube impulse line.Remarks: For superheated steam please consult. For determination of upstream and downstream pipe sizes please consult.

, mutiply the given capacity 300 x 1,25 = 375 kgs/h

2,25f0.9;6.10.8;25.17.01pressureUpstream

1pressureDownstream=®==®�=®�

++

factorcorrectionffactorcorrectionffactorcorrection

ACTUATOR AND SPRING SELECTION TABLE

VALVE Kvs ACTUATOR

DN m3/h A -4 A -3 A -2 A -21 A -1 A -11

15 4.8 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

20 6.9 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

25 9.1 Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

32 11.8Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

40 14.4Outlet (bar) 0,5 -0,99 1,0-1,6 1,7-3,8 3,9-5,5 5,6-8,2 8,3-13

Spring Nr. 60 60 60 60 60 60

50 26.5Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13

Spring Nr. 61 61 61 61 64 64

65 51.5Outlet (bar) 0,5 -0,99 1,0-1,9 2,0-4,2 4,3-6,9 7,0-8,5 8,6-13

Spring Nr. 61 61 61 61 64 64

80 79.5Outlet (bar) 0,46 -0,99 1,0-1,9 2,0-5.0 5.1-8.9 9.0-13

Spring Nr. 62 62 62 62 65

100 129Outlet (bar) 0,46 -0,99 1,0-1,9 2,0-8.0 6.1-13

Spring Nr. 63 63 63 63

CAPACITY TABLE FOR SATURATED STEAM Kg/h

INLET PRESSURE VALVE SIZE

bar DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100

0,5

1 75

1,5

2

2,5

3

4

5

6

7

8

9

10

12

14

16

18

20

22

24

25

63

100

100

126

150

175

220

260

330

400

450

500

560

680

800

920

1040

1170

1330

1500

1600

84

133

133

170

200

240

290

350

440

520

600

670

750

900

1050

1230

1400

1540

1780

2000

2150

112

175

175

230

260

310

390

480

580

700

800

880

980

1180

1400

1630

1860

2100

2350

2600

2800

146

280

240

290

350

400

510

620

760

910

1040

1180

1300

1540

1850

2150

2450

2700

3050

3400

3600

230

430

360

450

550

640

800

1000

1220

1430

1670

1800

2000

2500

2900

3400

3800

4200

4900

5400

5700

360

700

590

730

880

1010

1300

1600

1930

2300

2700

2900

3200

4000

4700

5500

6200

7000

7800

8700

9200

580

1200

910

1160

1390

1600

2000

2500

3000

3600

4100

4600

5100

6100

7200

8300

9500

10800

12200

13700

14500

1000

1850

1600

2000

2400

2700

3400

4200

5100

6100

7100

7800

8500

10500

12600

14600

16600

18600

21000

23500

25500

1550

2500

3050

3600

4300

5400

6500

8000

9500

11000

12000

13500

16300

19000

22000

25000

28000

32000

36000

38000