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Safety valve LESER 488

Safety valve LESER 488
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  • Nominal inlet: DN25-DN100
  • Response pressure: 0.1-16 bar
  • Working environment temperature: 45 to 150 °C
  • Material: 1.4404

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  • Dimensions and weights
  • Design pressures and temperatures
  • Throughput (Steam)
  • Throughput (Air)
  • Throughput (Water)
  • Delivery
  • Payment
Fact. dia. holes d 0 [mm] 23 37 46 60 74 92 13 37 46 60 74 92
Welded connections Entrance a Output b
PN 16 16 16 16 16 16 16 16 16 16 16 16
Center to end face - [mm] 53 70 78 87 103 121 90 125 125 125 150 153
Height - Н4 H max. [mm] 332 518 534 552 640 684 332 518 534 552 640 684
Height - H8 design with two pistons H max. [mm] 338 535 550 569 707 750 338 535 550 569 707 750
Clamp connections Entrance a Output b
PN 16 16 16 ten ten ten 16 ten ten ten ten ten
Center to end face - [mm] 75 92 99 109 124 149 112 147 147 153 178 181
Height - Н4 H max. [mm] 332 518 534 552 640 684 332 518 534 552 640 684
Height - H8 design with two pistons H max. [mm] 338 535 550 569 707 750 338 535 550 569 707 750
Threaded connections Entrance a Output b
PN 40 40 25 25 25 25 40 25 25 25 16 16
Center to end face - [mm] 93 110 113 122 138 156 130 160 160 160 185 188
Height - Н4 H max. [mm] 350 536 547 566 654 691 350 536 547 566 654 691
Height - H8 design with two pistons H max. [mm] 356 553 564 582 721 757 356 553 564 582 721 757
Flange connections Entrance a Output b
PN 25 25 16 16 16 16 25 16 16 16 ten ten
Center to end face - [mm] 99 114 123 132 148 166 134 170 170 170 195 198
Height - Н4 H max. [mm] 356 540 557 576 664 701 356 540 557 576 664 701
Height - H8 design with two pistons H max. [mm] 362 557 574 592 731 767 362 557 574 592 731 767
Weight Entrance a Output b
Weight Max. [kg] nine twenty 21,7 26.5 47 56 -
Fact. dia. holes d 0 [mm] 23 37 46 60 74 92
Clamp connections In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b
- 11 / 2´´ 2´´ 2´´ 3´´ 21 / 2´´ 4 3´´ 41 / 2´´ 4 5 41 / 2´´ 6´´
Center to end face - [mm] 75 112 92 147 99 147 109 153 124 178 149 181
Clamp connection diameter d int. [mm] 36 49 49 73 60 98 73 110 98 136 110 163
d ext. [mm] 51 64 64 91 78 119 91 130 119 155 130 183
Height - Н4 H max. [mm] 332 518 534 552 640 684
Threaded connections In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b
- 25 40 40 65 50 80 65 100 80 125 100 150
Center to end face - [mm] 93 130 110 160 113 160 122 160 138 185 156 188
Height - Н4 H max. [mm] 350 536 547 566 654 691
Flange connections In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b In. a Out. b
- 25 40 40 65 50 80 65 100 80 125 100 150
Center to end face - [mm] 99 134 114 170 123 170 132 170 148 195 166 198
Height - Н4 H max. [mm] 356 540 557 576 664 701

схема LESER 488

Fact. dia. holes d 0 [mm] 23 37 46 60 74 92
Body material: 1.4404 (316L) - - - -
Min. installation pressure p [bar] 0.1 0.1 0.2 0.1 0.1 0.1
Max. installation pressure p [bar] 16 16 15 10.34 10.34 8.2
Temperature range - Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
EPDM [° C] -45 +150 -45 +150 -45 +150 -45 +150 -45 +150 -45 +150
CR [° C] -40 +100 -40 +100 -40 +100 -40 +100 -40 +100 -40 +100
FKM [° C] -twenty +180 -twenty +180 -twenty +180 -twenty +180 -twenty +180 -twenty +180
FFKM [° C] 0 +250 0 +250 0 +250 0 +250 0 +250 0 +250
Fact. dia. holes d 0 [mm] 23 37 46 60 74 92
Set pressure [bar] Throughput [kg / h]
1 326 843 1302 2215 3370 5209
2 519 1343 2075 3531 5371 8302
3 699 1808 2794 4754 7232 11178
4 871 2254 3485 5928 9018 13938
Maximum Temperature for EPDM Soft Seated Seat
5 1043 2699 4172 7997 10796 16687
6 1214 3142 4856 8262 12568 19426
7 1381 3574 5525 9399 14297 22098
eight 1551 4014 6205 10556 16057 24818
nine 1721 4454 6884 11712 17815 27535
ten 1891 4893 7562 12866 19571 30250
12 2230 5770 8919 15174 23081 35675
fourteen 2562 6629 10247 17433 26518 40987
16 2900 7505 11,600 19735 30020 46400
Fact. dia. holes d 0 [mm] 23 37 46 60 74 92
Set pressure [bar] Throughput [m 3 / h]
1 388 1004 1552 2641 4017 6209
2 627 1622 2507 4265 6487 10026
3 854 2209 3414 5809 8836 13657
4 1071 2773 4286 7291 11091 17143
5 1289 3337 5157 8774 13346 20629
6 1507 3900 6029 10257 15601 24114
7 1725 4464 6900 11739 17857 27600
eight 1943 5028 7771 13222 20112 31086
nine 2161 5592 8643 14704 22367 34571
ten 2379 6155 9514 16187 24622 38057
12 2814 7283 11257 19152 29132 45028
fourteen 3250 8411 13000 22117 33642 52000
16 3686 9538 14743 25082 38153 58971
Fact. dia. holes d 0 [mm] 23 37 46 60 74 92
Set pressure [bar] Throughput [10 3 kg / h]
1 9.97 25.8 39.9 67.9 103 160
2 14.1 36.5 56.4 96 146 226
3 17.3 44.7 69.1 118 179 276
4 19.9 51.6 79.8 136 206 319
5 22.3 57.7 89.2 152 231 357
6 24.4 63.2 97.7 166 253 391
7 26.4 68.3 106 180 273 422
eight 28.2 73 113 192 292 451
nine 29.9 77.4 120 204 310 479
ten 31.5 81.6 126 215 326 505
12 34.6 89.4 138 235 358 553
fourteen 37.3 96.6 149 254 386 597
16 39.9 103 160 271 413 638
  • Pickup from a warehouse in Kiev
  • New Mail
  • SAT
  • Deliveri
  • Courier in Kiev
  • Cashless payment with VAT
  • Online Privat24, Visa / MasterCard
Safety valve LESER 488

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