C30VR Compressor Installation, Operation, Maintenance and Troubleshooting
3-4
ULVAC CRYOGENICS INCORPORATED
3.5 Inspection of the compressor and accessories
Compressor
Inspect and visually confirm that there is no evidence of damage, oil leak and/or helium
gas leakage to the compressor. If there is a problem, please contact our Service
Engineering Division or the nearest customer support center.
act our Service
Engineering Division or the nearest customer support center.
Also check the value of helium pressure gauge on the front panel of the compressor to
confirm that there is no helium gas leakage (Refer to “Section 5.1 Verification of helium
static pressure”).
Also check the value of helium pressure gauge on the front panel of the compressor to
confirm that there is no helium gas leakage (Refer to “Section 5.1 Verification of helium
static pressure”).
If the value of the helium pressure gauge indicates lower than the values in Table 1-5,
adding helium gas is required. For the procedures of adding helium gas refer to
“Section7.3 Adjusting system helium pressure”.
If the value of the helium pressure gauge indicates lower than the values in Table 1-5,
adding helium gas is required. For the procedures of adding helium gas refer to
“Section7.3 Adjusting system helium pressure”.
Please contact our Service Engineering Division or the nearest customer support center if
the helium static pressure is significantly low.
Please contact our Service Engineering Division or the nearest customer support center if
the helium static pressure is significantly low.
Accessories
Accessories
Inspect and visually confirm the accessories that there is no evidence of damage
Inspect and visually confirm the accessories that there is no evidence of damage
If any damage is found, please contact our Service Engineering Division
or the nearest
customer support center.
If any damage is found, please contact our Service Engineering Division
or the nearest
customer support center.
3.6 Flexible hoses and specifications
3.6 Flexible hoses and specifications
Flexible hose (Helium flexible line) consists of helium gas filled flexible hose, and
self-sealing couplings at both ends.
Flexible hose (Helium flexible line) consists of helium gas filled flexible hose, and
self-sealing couplings at both ends.
Listed below are the specifications of flexible hoses.
Listed below are the specifications of flexible hoses.
Table 3-3
Flexible hose specifications
Table 3-3
Flexible hose specifications
Item
Item Specification
Specification
Helium gas
99.999% pure or more
Allowable helium pressure
Max.2.45MPaG
Maximum operating temperature
70
℃
Material SUS304
Standard length
3m
Minimum bending radius
250mm
Coupling 1/2inch
self-sealing
coupling
Tightening torque of coupling
20N
・
m
Minimum be d radius of the flexible hose is 250mm.
Do not twist the flexible hose especially at both ends. Also, when bending the flexible hose
n
ensure that no part of it becomes flattened.
Do not put a
s on the flexible hose.
Leave the d t caps on the self-sealing couplings of the compressor until the flexible hoses
are connecte to the couplings.
and/or break down of the equipment.
ny object
us
d
Failure to observe this warning may result in damage
CAUTION
Summary of Contents for C30MVER
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