2000 Hook-up Book

Figure II-113 Alternate Methods of Draining Compressed Air Receiver

Balance Line

Air Receiver

Strainer

Liquid Drain Trap

Liquid Drain Trap

Strainer

HOOK-UP DIAGRAMS

Small air receivers are often “drained” through a manual valve at low level on a once per day basis. Continuous drainage helps to main tain better quality in the air supplied

but small receivers may be mounted so low as to preclude the use of the CA14 or FA pattern drainers. The drain point may be in the center of

the dished end of even on top, with an internal dip pipe to reach the col lected liquid. The only possible option is the TD drainer.

Figure II-114 Draining Compressed Air Dropleg to Equipment

Figure II-115 Draining Riser in Compressed Air Distribution Line

Main

Balance Line

Main Supply

Equipment Supply

Balance lines are not always necessary on Air Drainers. They become necessary when the trap location is more remote from the line being drained and when condensa tion quantities are greater. It is preferred to connect balance lines downstream of the point being drained.

Branches are best taken off the top of main lines. Condensation swept along the lines when air tools are used may over load the filter of the air set at the take-off point, so a drainer is provided at the bottom of the sup ply leg to remove as much as possible of this condensation.

Strainer

Strainer

Liquid Drain Trap

Liquid Drain Trap

Drain

Drain

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