Suitable for draining gas to ambient atmosphere with pressure increase in the gas pipeline. To be installed at gas control points and gas control equipment.

Nominal valve bore 50 mm.

Three valve options differ in actuation pressures:

1. PSK-50L is a low actuation pressure valve (actuation pressure may be adjusted from 0.02 to 0.05 bar)
2. PSK-50M (medium actuation pressure valve with range of pressure adjustment 0.2 to 0.5 bar)
3. PSK-50H (high actuation pressure valve with actuation pressures 0.5 to 1.25 bar).
4. Working medium: natural gas.
5. Working medium:temperature: -15^оС to +50^оС.
6. Body parts materials: irons СЧ 15, КЧ 30 - 6Ф GOST 1412 - 85.

Fluid temperature: -15^о to +50^оС.

Body available in several grades of cast iron. Connection with pipeline: female threaded (2").

To be used in regions with temperate climate.

Design of Dump Spring Valve PN 1,25

Main design features and advantages

• Full cycle of test guarantees in any case leak-proof operation of the valves.
• Valves need no servicing (designed for long-term operation).
• When pressure is increased, sealing disk moves and gas is dumped into atmosphere. When pressure drops to nominal spring locks the valve again.