LESER Compact Performance Safety Valve Type 438

Compact PerformanceType 438

Safety valve with O-ring disc for increased tightness. Technical data

  • Matching selection of threaded and flanged connections with a delivery time of 2 weeks
  • CE_Europa_schwarz
  • VdTUEV
  • ASME_UV_USA_schwarz
  • EAC_Russland_schwarz
  • TS_Logo_China_schwarz
  • UKCA_Grossbritanien_schwarz
  • CRN_Kanada_schwarz
  • Bureau-Veritas
  • DNV
  • RINA-1861
  • Vogel
  • LloydsRegister
  • CCS_Logo_China_SW
  • Korean-Register
  • Class-NK

Applications & Industries

  • Chemistry
  • Oil & Gas
  • Petrochemical
  • Energy
  • Technical gases
  • LNG & LPG
  • Shipbuilding
  • Other industries

The optimal solution for:

  • Compressors and pumps
  • Technical gases and CO2 plants
  • Pressure vessels and piping systems carrying vapors, gases and fluids
  • Thermal expansion

BASF_inv Saipem Spa_inv Aerzener Maschinenfabrik_inv

Technical Features Type 438

Set pressure(according to ASME) 5 - 180 bar | 72.5 - 2610 psig
Set pressure(according to CE) 5 - 180 bar | 72.5 - 2610 psig
Temperature(according to ASME) -45 to 150 °C | -49 to 302 °F
Temperature(according to CE) -45 to 150 °C | -49 to 302 °F
Capacity C-
Connections DIN EN 1092 G/R: NPS 3/8 to NPS 1 | DN 15 - DN 25
Connections ASME B16.5 NPT: NPS 1/2 to NPS 1 | NPS 1/2 to NPS 1
Flange class Inlet DIN EN 1092 PN 40 - PN 400
Flange class Inlet ASME B16.5 Class 150 - Class 2500
Body material 1.4104, 1.4404 | SA 479 430, SA 479 316L
Narrowest flow diameter d₀ 10 mm | 0.394 in
Narrowest flow area A₀ 78.5 mm² | 0.122 in²
Seat gasket O-ring
Download Catalogues

Indian Compact Performance Catalog

Download the Indian Compact Performance Catalog now.

Download Catalogue
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