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Refrigeration service valve positions.
Also look to see if the service valve has a packing gland nut.
Full refrigeration service temperature range of 40 f to 325 f.
Include access fitting located on tube extension.
Seal cap design provides valve operation without removal of seal cap.
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Many service valves will have this.
Valves with access fittings also available.
Service valves can be set to three different positions figure 3.
Service valve front seated position the valve stem is turned fully clockwise to effectively stop the flow of refrigerant vapour from the suction line union on the low pressure side of the compressor and to the discharge line union on the high pressure side of the compressor.
6 57 a hose is connected to the low side access point compressor suction valve through a filter drier to the transfer unit compressor suction valve.
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The packing gland nut helps to ensure a leak free seal.
The valve is back seated when the stem is turned all the way out counterclockwise.
Three way service valve positions.
When opening a service valve make sure it is secured by placing it in a vise or attaching it to the compressor.
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A hose is then connected from the transfer unit compressor discharge valve to an external storage cylinder.
Full size ports for unrestricted flow non directional.
It is typically made of brass and is found at the base of the valve stem.
Valve may be installed in any position.
Service valves should al.
Service valves can be set to three different positions figure 3.
Compressor multi position service valves.
Front seated position the valve stem is turned fully clockwise to effectively stop the flow of refrigerant vapour from the suction line union on the low pressure side of the compressor and to the discharge line union on the high pressure side of the compressor.