LPS25 Low pressure relief valve - selfacting regulator

Low pressure relief self-acting regulator – controls the inlet pressure. Critical is to secure adequate flow with minimal pressure drop.

Nominal size

  • DN 25
  • 1"

Nominal pressure

  • PN 16
  • ANSI 150

Construction

  • self-operating low pressure regulator of inlet pressure p1, bypass valve

Operating temperature of medium

  • from -30°C to +180°C

Maximum working pressure

  • type LPS 25 - p1max. 500 mbar (g) p2 - atmosphere
  • type LPS/D 25 - p1max. 500 / 2000 mbar (g) p2 – atmosphere
  • type LPS/N 25 - p1max. -220 … +5 mbar (g) p2 – vacuum
  • type LPS/NL25 - p1max. +500 … +5 mbar (g) p2min – 500 mbar (g)

Flow-ratio Kvs [m3/h]

  • 6,5

Class of tightness (VDI/VDE 2174)

  • class VI – standard with soft seats

Materials involved with medium

  • stainless steel 1.4571/1.4404/1.4408/316Ti
  • Hastelloy C (2.4819/C276)

Diaphragm material

  • PTFE, J-6000
  • Viton

Springs adjustment ratio

  • 3 … 500 mbar, type LPS, LPS/D
  • -220 … +5 mbar, type LPS/N
  • -500 … -3 mbar, type LPS/L

Connection

  • flange joint
  • threaded

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