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Safety valve LESER 485

Safety valve LESER 485
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  • Nominal inlet: DN25-DN50
  • Response pressure: 0.1-16 bar
  • Working environment temperature: -45 to 150 °C
  • Material: 1.4435 (BN2)

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  • Dimensions and weights
  • Design pressures and temperatures
  • Throughput (Steam)
  • Throughput (Air)
  • Throughput (Water)
  • Technical documentation
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Fact. dia. holes d 0 [mm] 13 25
Integrated pipe connection entrance entrance
PN 16 16
Nominal pipe size Dy 25 40 50
Bias with [mm] 38 49 55
Length L [mm] 130 180 180
DIN 11850 Diameter d [mm] thirty 42 54
Wall thickness s [mm] 2 2 2
ISO 2037 Diameter d [mm] 25.4 38 51
Wall thickness s [mm] 1.6 1.6 1.6
DIN EN ISO Diameter d [mm] 33,7 48.3 -
ISO 1127 Wall Thickness s [mm] 2 2 -
Welded connections Entrance a Output b Entrance a Output b Entrance a Output b
PN 16 16 16
Center to end face - [mm] 58 80 72 90 84 90
Height - Н4 H max. [mm] 234 331 343
Height - H8 design with two pistons H max. [mm] 262.2 338.7 350.7
Clamp connections Entrance a Output b Entrance a Output b Entrance a Output b
PN 16 16 16
Center to end face - [mm] 58 102 72 112 84 112
Height - Н4 H max. [mm] 234 331 343
Height - H8 design with two pistons H max. [mm] 262.2 338.7 350.7
Threaded connections Entrance a Output b Entrance a Output b Entrance a Output b
PN 16 16 16
Center to end face - [mm] 58 120 72 130 84 130
Height - Н4 H max. [mm] 234 331 334
Height - H8 design with two pistons H max. [mm] 262.2 338.7 350.7
Flange connections Entrance a Output b Entrance a Output b Entrance a Output b
PN 16 16 16
Center to end face - [mm] 58 126 72 134 84 134
Height - Н4 H max. [mm] 234 331 343
Height - H8 design with two pistons H max. [mm] 262.2 338.7 350.7
Weight
Weight Max. [kg] 3.0 5.0

конструкция LESER 485

Fact. dia. holes d 0 [mm] 13 25
Integral pipe connection to ISO 2037 entrance entrance
Nominal pipe size 25 40 50
1 11 / 2´´ 2´´
Wall thickness s [mm] 1.6 1.6 1.6
Diameter d [mm] 25.4 38 51
Length L [mm] 130 180 180
Welded connections Entrance a Output b Entrance a Output b Entrance a Output b
Center to end face - [mm] 58 80 72 90 84 90
Bias with [mm] 38 - 49 - 55 -
Height - Н4 H max . [mm] 234 331 343
Threaded connections Entrance a Output b Entrance a Output b Entrance a Output b
Center to end face - [mm] 58 120 72 130 84 130
Bias with [mm] 38 - 49 - 55 -
Height - Н4 H max. [mm] 234 331 343

схема LESER 485

Fact. dia. holes d 0 [mm] 13 25
Body material: 1.4435 (316L)
Minimum set pressure p [bar] 0.3 0.1
Maximum set pressure p [bar] 16 16
Temperature range - Minimum Maximum Minimum Maximum
EPDM [° C] -45 +150 -45 +150
CR [° C] -40 +100 -40 +100
FKM [° C] -twenty +180 -twenty +180
NBR [° C] -25 +110 -25 +110
FFKM [° C] 0 +250 0 +250
Fact. hole diameter d 0 13 25
Set pressure [bar] Throughput [kg / h]
1 78 201
2 130 338
3 182 460
4 231 588
Maximum temperature for EPDM soft seal
5 276 704
6 321 820
7 336 932
eight 411 1047
nine 456 1162
ten 500 1276
12 590 1505
fourteen 678 1729
16 768 1958
Fact. hole diameter d 0 13 25
Set pressure [bar] Throughput [m 3 / h]
1 93 240
2 157 408
3 222 562
4 284 723
5 341 870
6 399 1018
7 457 1165
eight 514 1312
nine 572 1459
ten 630 1606
12 745 1900
fourteen 860 2194
16 976 2488
Fact. hole diameter d 0 13 25
Set pressure [bar] Throughput [10 3 kg / h]
1 2.76 6.81
2 3.91 9.63
3 4.78 11.8
4 5.52 13.6
5 6.71 15.2
6 6.76 16.7
7 7.31 eighteen
eight 7.81 19.3
nine 8.28 20.4
ten 8.73 21.5
12 9.57 23.6
fourteen 10.3 25.5
16 eleven 27.2

LESER 485 Technical Documentation

  • Pickup from a warehouse in Kiev
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Safety valve LESER 485

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