Valves - Manifold and Gauge Valve. Manifold Valve. Applications. Pressure & differential pressure instrumentation. Specifications. Maximum Operating Pressure instrumentation. Valve manifolds are designed for static pressure and liquid levels.
A gauge system comprising a hollow manifold having a first, second, and central region therebetween; a port adjacent end with a line couplable to a port and positionable between a closed and an open orientation. Means for monitoring, testing or servicing the air-conditioning.
See also:
Refrigeration equipment service apparatus with quick-disconnect couplings
https://patents.google.com/patent/US5080132
Refrigerant system charging and evacuating manifold
https://patents.google.com/patent/US3916641
Refrigerant recovery, purification and recharging system
https://patents.google.com/patent/EP0329321A2
Further Reading:
Refrigerant charging manifold valve
US5715692A
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