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Introduction

Slam Shut-off valve is installed immediately after the filter & prior to the Regulator. It normally remains open, in case the outlet pressure of the regulator exceeds the permissible limit, the slam shut-off valve senses it through the impulse line & immediately shut off the flow to downstream.

When the regulator is repaired, the slam shut-off valve is to be opened manually. Once the flow starts through the slam shut-off valve it will remain open till the outlet pressure of the regulator is within limits.

Type Inlet pressure Range Outlet Pressure Range Gas Flow Rate End Connection Gas Catalogues
V4321 0.5 - 19 Kg/cm2 0.05 - 5 Kg/cm2 150 Nm3/hr
  • 1" BSP (INT)
Natural, LPG, Nitrogen, CO2
V4325 / V4325 II 0.5 - 19 Kg/cm2 0.05 - 5 Kg/cm2 0-1500 Nm3/Hr
  • 1" NB Flanged as per ANSI 150# (V4325)
  • 1" NB Flanged as per ANSI 300# (V4325 II)
LPG, Natural Gas, CO2
V4326 30 - 250 Kg/cm2 12 - 120 Kg/cm2 1000 Nm3/hr
  • 1" BSP (INT)/1.5" BSP (EXT)
CNG, Nitrogen, Hydrogen, Oxygen
V4327 / V4327 II 0.5 - 19 Kg/cm2 0.05 - 5 Kg/cm2 400 Nm3/hr
  • 1.5" NB Flanged as per ANSI 150# (V4327)
  • 2" NB Flanged as per ANSI 150# (V4327 II)
Natural, LPG, Nitrogen, CO2
V4329 / V4330 0.5 - 19 Kg/cm2 0.05 - 5 Kg/cm2 2000 Nm3/hr
  • 3" NB Flanged as per ANSI 150# (V4329)
  • 4" NB Flanged as per ANSI 150# (V4330)
Natural, LPG, Nitrogen, CO2
V4335 / V4336 0.5 - 26 Kg/cm2 1 - 12 Kg/cm2 6000 Nm3/hr
  • 3" NB Flanged as per ANSI 150# (V4335)
  • 3" NB Flanged as per ANSI 300# (V4335 I)
  • 4" NB Flanged as per ANSI 150# (V4336)
  • 4" NB Flanged as per ANSI 300# (V4336 I)
Natural, LPG, Nitrogen, CO2
V4323 10 - 250 Kg/cm2 12 - 120 Kg/cm2 500 Nm3/hr
  • 1" BSP (INT)
Natural, Nitrogen, CO2, Oxygen, Hydrogen