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SLSRV 3-1208 Weir Power & Industrial First choice for power and industrial protection 9
Sarasin-RSBD SPRING LOADED SAFETY RELIEF VALVE - 63 SERIES
Saturated Steam Capacities Chart (Lbs/h)
Calculation to ISO 4126-1 (December 1991) : 10% or 0.2 b overpressure (whichever is greater) and with Kd of 0.75
Size 1" x 112" 114" x 2"112" x 212"2" x 3" 212" x 4" 3" x 5" 4" x 6" 5" x 8" 6" x 8" 8" x 10" 10" x 14"
Orifice 0,906 in 1,142 in 1,457 in 1,811 in 2,362 in 2,913 in 3,622 in 3,937 in 4,528 in 5,06 in 7,874 in
Section 0,644 in2 1,024 in2 1,667 in2 2,576 in2 4,383 in2 6,666 in2 10,30 in2 12,17 in2 16,10 in2 27,39 in2 48,69 in2
Pressure Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow Flow
psig Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h Lbs/h
7,5 373 592 964 1 490 2 535 3 856 5 961 7 042 9 313 15 845 28 169
15 582 925 1 505 2 326 3 957 6 020 9 304 10 993 14 538 24 734 43 972
30 1 036 1 646 2 680 4 142 7 047 10 719 16 568 19 575 25 888 44 044 78 301
40 1 314 2 089 3 400 5 255 8 941 13 600 21 021 24 835 32 845 55 880 99 342
50 1 560 2 480 4 037 6 240 10 617 16 149 24 961 29 490 39 001 66 353 117 962
60 1 806 2 872 4 674 7 225 12 292 18 698 28 901 34 145 45 157 76 827 136 581
70 2 053 3 263 5 312 8 210 13 968 21 247 32 841 38 800 51 313 87 301 155 201
80 2 299 3 655 5 949 9 195 15 644 23 796 36 780 43 455 57 469 97 774 173 821
100 2 791 4 438 7 224 11 165 18 995 28 894 44 660 52 765 69 782 118 721 211 060
120 3 284 5 220 8 498 13 135 22 347 33 992 52 540 62 075 82 094 139 668 248 299
145 3 899 6 199 10 091 15 597 26 536 40 365 62 390 73 712 97 484 165 852 294 849
170 4 515 7 178 11 684 18 060 30 726 46 737 72 240 85 349 112 875 192 036* 341 398*
200 5 254 8 352 13 596 21 015 35 753 54 384 84 060 99 314 131 343 223 457* 397 257*
232 6 042 9 605 15 635 24 167 41 116 62 541 96 667 114 210 151 043 256 972* 456 840*
261 6 756 10 740 17 483 27 023 45 975 69 934 108 093 127 709 168 895*
290 7 470 11 876 19 331 29 880 50 835 77 326 119 519 141 208 186 748*
319 8 184 13 011 21 179 32 736 55 695 84 718 130 945
340 8 701 13 833 22 518 34 805 59 214 90 071 139 218*
370 9 440 15 007 24 430 37 760 64 241 97 718 151 038*
406 10 326 16 417 26 724 41 305 70 274 106 895* 165 222*
430 10 917 17 356 28 253 43 669 74 296* 113 012* 174 678*
460 11 656 18 531 30 165 46 624 79 323* 120 659*
493 12 469 19 823 32 268 49 875 84 853* 129 071*
530 13 380 21 271 34 626 53 519* 91 054* 138 503*
560 14 119 22 446 36 537 56 474* 96 081* 146 150*
590 14 857 23 620 38 449 59 429* 101 108* 153 797*
620 15 596 24 794 40 361 62 384* 106 136*
638 16 039 25 499 41 508 64 157*
670 16 827 26 752 43 547* 67 309*
700 17 566 27 926 45 459* 70 264*
725 18 182 28 905 47 052* 72 726*
* = Carb/ Steel Design
