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 |
|
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 |
|
Natural, Nitrogen, CO2, Oxygen, Hydrogen |
|
