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Lock-up Air Relay
Lock-up Air Relay is used for fail in place applications of control valves when air supply drops below acceptable pressure levels.
The Type 250 Lock-up Air Relay is a reliable unit for fail in place applications of control valves when air supply drops below acceptable pressure levels. Valve or damper position is maintained by capturing air pressure inside the diaphragm chamber (or piston cylinder) of the actuator, when the supply pressure falls below the desired set value.
Specifications
| Port Size (Inlet, Outlet, Supply) | 1/4″ NPT | |
| Cut-off Pressure Range | 15-60 psig (1-4 BAR) 30-120 psig (2-8 BAR) |
|
| Supply Pressure | 125 psig (8.35 BAR) maximum | |
| Temperature Limits | 0° to 160°F (-18° to 71°C) | |
| Weight | Aluminum: 2.1 lbs (0.95 kg) Stainless Steel: 4 lbs (1.8 kg) |
|
| Materials | Housing: Diaphragm: Spring: Plug: Trim: |
Aluminum or 304 Nitrile/Nylon Plated Steel Stainless Steel/Nitrile Stainless Steel |
Applications
Reliability for fail in place applications of control valves when air supply drops below acceptable pressure levels.
