These non return valves can be used with ammonia and other non flammable refrigerants for ensuring correct direction of flow, suitable for refrigerants lines, where pulsation occurs ,creates dampening effect .
Made of special steel body with hardened refection glass to ensure safety and quick reading. maximum pressures of 20 bar g and temperature range of -10 degree C/+ 100 degree C . sizes available from 7 1/2 inches.
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