Compact Performance

Safety valves with compact dimension and variable connections

  • Flanged and threaded valves with a flexible range of options to suit your application
  • Bellows version available
  • Set pressures up to 1.000 bar / 14,504 psig
  • CE_Europa_schwarz
  • VdTUEV
  • ASME_UV_USA_schwarz
  • UKCA_Grossbritanien_schwarz
  • CRN_Kanada_schwarz
  • TS_Logo_China_schwarz
  • EAC_Russland_schwarz
  • Bureau-Veritas
  • DNV
  • RINA-1861
  • Vogel
  • LloydsRegister
  • Korean-Register
  • CCS_Logo_China_SW
  • Class-NK
Contact LESER Download section
Compact Performance safety valve from LESER

Technical data Compact Performance Safety valves

Threaded connections
G/R: NPS 3/8 to NPS 1 1/2
NPT: NPS 1/2 to NPS 2
Flange connections DIN EN 1092
DN 15 to DN 25
Flange connections ASME B16.5
NPS 1/2 to NPS 1
Set pressure
0.1 bar - 850 bar | 1.5 - 12,328 psig
Temperature
-273 °C - 450 °C | -459 °F - 842 °F
Capacity
Orifice B+ to F

Body material
Stainless steel, Carbon steel, Stainless steel casting
DOW Chemical_inv
Linde_inv
ATLAS Copco_inv
45942172_d013_Gewinde_cutKl
DOW Chemical_inv
Linde_inv
ATLAS Copco_inv

Valve Types

Choose the product type that suits you

Compact Performance - Safety valves for small capacities
LESER Compact Performance Safety Valve Type 437
Type 437

Safety valves for securing small capacities

G 3/8 - 1 | NPT 1/2 - NPT 1

0.1 - 365 bar | 1.5 - 5,294 psig

LESER Compact Performance Safety Valve Type 438
Type 438

Safety valve with O-ring disc for increased tightness

G 3/8 - 1 | NPS 1/2 - NPS 1

5 - 180 bar | 72.5 - 2,610 psig

LESER Compact Performance Safety Valve Type439
Type 439

Safety valve with vulcanized soft seal for increased tightness at low set pressures.

G 3/8 - 1 | NPT 1/2 - NPT 1

0.1 - 16 bar | 1.5 - 232 psig

Compact Performance - Safety valves for medium capacities
LESER Compact Performance Safety Valve Type 459
Type 459

Safety valve for medium capacities

NPT 1/2 to NPT 2 | NPS 1/2 to NPS 1

0.2 - 250 bar | 2.9 - 3,626 psig

LESER Compact Performance Safety Valve Type 459 HDD
Type 459 HDD

Safety valve for safeguarding medium capacities and high pressures

NPT 1/2 to NPT 1 | NPS 1/2 to NPS 1

250.01 - 850 bar | 3626 - 12,328 psig

LESER Compact Performance Safety Valve Type 462
Type 462

Safety valve with O-ring disc for increased tightness

NPT 1/2 to NPT 2 | NPS 1/2 to NPS 1

0.5 - 250 bar | 7.3 - 3,626 psig

LESER Compact Performance Safety Valve Type 462 HDD
Type 462 HDD

Safety valves with O-ring disc for increased tightness at high set pressures

NPT 1/2 to NPT 1 | NPS 1/2 to NPS 1

250.01 - 350 bar | 3626 - 5,076 psig

Compact Performance - Safety valves for medium capacities
LESER Compact Performance Safety Valve Type 459
Type 459

Safety valve for medium capacities

NPT 1/2 to NPT 2 | NPS 1/2 to NPS 1

0.2 - 250 bar | 2.9 - 3,626 psig

LESER Compact Performance Safety Valve Type 459 HDD
Type 459 HDD

Safety valve for safeguarding medium capacities and high pressures

NPT 1/2 to NPT 1 | NPS 1/2 to NPS 1

250.01 - 850 bar | 3626 - 12,328 psig

LESER Compact Performance Safety Valve Type 462
Type 462

Safety valve with O-ring disc for increased tightness

NPT 1/2 to NPT 2 | NPS 1/2 to NPS 1

0.5 - 250 bar | 7.3 - 3,626 psig

LESER Compact Performance Safety Valve Type 462 HDD
Type 462 HDD

Safety valves with O-ring disc for increased tightness at high set pressures

NPT 1/2 to NPT 1 | NPS 1/2 to NPS 1

250.01 - 350 bar | 3626 - 5,076 psig

Contact LESER Teaser

Contact LESER

Send a message to LESER

Contact
Calculation of safety valves with LESER-Valvestar

Sizing and selection

Sizing and selection of your LESER Safety valve with VALVESTAR® - The Sizing Program

Valvestar

You may also like