Connecting To Helium Compressor And Ccc; Disconnecting From Helium Compressor - Agilent Technologies Cryogenic User Manual

Connecting to helium compressor and CCC

Disconnecting from helium compressor

Cryogenic Systems Operation
Tighten the flexible helium line to the helium compressor
using only the tools provided and follow this procedure:
1 Verify that the flat seals are in place on the male
couplings.
Hold the body nut with the appropriate size wrench.
2
Finger- tighten the union nut to the male coupling. DO
3
NOT twist the flexible line.
4 Tighten the union nut to the male coupling using an
appropriate- sized wrench while holding the body nut
stationary to avoid application of any torque to the
flexible line.
Continue to tighten until the stop is reached. DO NOT
5
tighten past the stop.
6 The size of the coupling determines the sizes of the body
nut, union nut, and torque.
1/2 inch coupling (#8)
• 1 3/16 inch (30mm) union nut
• 1 inch (26 mm) body nut
1/4 inch coupling (#4)
• 3/4 inch (19 mm) union nut
• 5/8 inch (16 mm) body nut
Use the appropriate wrenches to hold the union and
1
body nuts.
Break the connection by loosing the union nut. The
2
bulkhead nut should not rotate. If it does begin to rotate,
have another person attach the appropriate- sized wrench
and hold the bulkhead nut stationary.
Hold the body nut and unscrew the union nut the
3
remainder of the way. Some venting of gas may occur,
this is normal.
8
Appendix
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