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Special Service Valves
Our range of valves also includes special service valves which are used for special purposes like releasing excess pressure. Our service valves are available at the most reasonable prices. Please supply the following information for prompt order processing:
• Quantity
• Inlet / Outlet Size
• Lonergan Model Designation
• Inlet / Outlet Range Rating & Facing
• Construction Material (for non-standard materials, see new series designations)
• O-Ring Seat Seal (see material and pressure/ temperature limit charts)
• Set Pressure
• Back Pressure (constant or variable)
• Maximum inlet Temperature
• Allowable Overpressure
• Service (gas / vapor-molecular weight or specific gravity liquid-specific gravity & viscosity)
• Required Capacity
• Accessories: Packed fever, plain lever, bolted cap. Counter-balanced type R & L levers Test gag. Valve operation indicator
• Code Requirements |
 
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Safety Relief Valve Our safety relief valve is fitted in vessels to prevent an undue rise in pressure. Whenever the vacuum is build, the safety relief valve gets actuated and there is a rapid opening or pop up action to release the pressure. Used in various industries, our safety valve is available in sizes to suit the requirements of our clients. |
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Pressure Reducing Valve We offer pressure relief valves & PRV stations that are used in various industries for releasing the pressure. Available in center disc and electric disc, our relief valves can be customized as per the specifications provided by our clients.
| Type | Center Disc / Electric Disc | | Size | 2" to 40" | | Design & Mfg. Standard | 150, 300, 600 | | Body Materials | C.I,C.S, CF8, CF8M | | Manual Operation | By Lever / Gear | | Seat Material | Natural & Synthetic Rubbers | | Construction | Wafer, Lug, Flanged End | | Other Function | Pneumatic or Electrical Actuator can be provided, Gear Operation Provided for valves 200mm & above | | Disc Materials | Cast Iron, WCB, CF8, CF8M | |
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Breather Valve Our ranges of breather valves are designed to prevent losses, by controlling the evaporation of volatile liquid from the sponge tanks. Further, they allow breathing when the pressure in the tanks exceeds a pre-defined value. Used in diverse industries like petroleum, chemical and general process industries, our range of breather valves are available with the following specifications:
Sizes: 50, 80, 150, 200, 250, 300, 350, 500 mm
Setting: All size, minimum press. mm wg 25, max. press mm wg 350, 100, max. vac. mm wg 25, max. vac. mm wg 200, 40
Body material: Cast aluminum alloy C.I. or other materials to suit application on request
Pallet & Seal: Anodise aluminum is standered. S.S. 304 or 316 optional.
Leakage: Breather valve with resilient seating will have a maximum leakage of 45 nlph at 90% set pressure. Metal to metal seats will have a slight higher leakage rate. |
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