High Point Vent and Low Point Drain Pit Assemblies

Liquip hydrant pit assemblies are a vital part of any hydrant pit system as they are critical for the operation, function and safety of the airport fuel hydrant system.
It is a requirement for Aviation fuel hydrant pipelines to include dedicated low drains and high point vents. JIG2 states that low point drains are flushed at a high velocity once a week to ensure removal of water and sediment.
The Liquip HLV150-300-xx sample vent and drain model is designed to be installed on the riser flange inside the hydrant pit box. This vent comprises a stainless steel 6 inch ASME B16.5 class 300LB raised face base flange and is fitted with two manually operated 1½” (40mm) stainless steel fire safe ball valves.
At the top of the assembly there is a flanged stainless-steel tank unit which features a pressure relief valve in the poppet which is set at 1,600 kPa. This tank unit provides a leakproof connection when coupled to the mating hose unit.
As our high and low point assemblies are designed and made in house at our Australian factory, variations to suit various flange sizes are easily accommodated.
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143AA1M1N1-xx | PRESSURE RELIEF SOLD SEPARATELY | |
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HLV150-300-25 | HIGH POINT VENT / LOW POINT DRAIN SS316L HYDRANT, SUIT DN25 DRAIN PIPE (EXCLUDES BLEED VALVE TO BE ORDERED SEPARATELY) | |
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HLV150-300-40 | HIGH POINT VENT / LOW POINT DRAIN SS316L HYDRANT, SUIT DN40 DRAIN PIPE (EXCLUDES BLEED VALVE TO BE ORDERED SEPARATELY) |
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