Testing System For Leaks; Hydrocarbons Systems; Notice On Using Non-Vilter Oils; Oil For Single Screw Compressors - Emerson VILTER VSG Installation, Operation And Service Manual

Section 3 • Installation

Testing System For Leaks

Vilter equipment is tested for leaks at the factory. One
TM
the most important steps in putting the system into
operation is field testing for leaks. This must be done to
assure a tight system that will operate without any ap-
preciable loss of gas.
First, if test pressures exceed the settings of the system,
relief valves or safety devices, they must be removed
and the connection plugged during the test. Secondly,
all valves should be opened except those leading to the
atmosphere. Then, open all solenoids and pressure reg-
ulators by the manual lifting stems. All bypass arrange-
ments must also be opened.

Hydrocarbons Systems

"Oil pumped" dry nitrogen, or anhydrous CO
der of preference may be used to raise the pressure to
the proper level for testing.
When the proper pressure is attained, test for leaks with
the soap mixture previously described. After all leaks are
found and marked, relieve the system pressure and re-
pair the leaks. Never attempt to repair soldered or weld-
ed joints while the system is under pressure. Soldered
joints should be opened and re soldered.
Do not simply add more solder to the leaking joint. After
all the joints have been repaired and the system is con-
sidered "tight".
Remove the drum and bring the pressure to the recom-
mended test level with oil pumped dry nitrogen or CO
Then check the entire system again for leaks, using a ha-
lide torch or electronic leak detector. Be sure to check
all flanged, welded, screwed and soldered joints, all gas-
keted joints, and all parting lines on castings. If any leaks
are found, they must be repaired and rechecked before
the system can be considered tight again, remember-
ing that no repair should be made to welded or soldered
joins while the system is under pressure.
3 – 12
VSG & VSSG Single Screw Compressor • Installation, Operation and Service Manual • Emerson • 35391SB

Notice on Using Non-Vilter Oils

Oil and its additives are crucial in system performance.
Vilter Manufacturing will NOT APPROVE non-Vilter
TM
oils for use with Vilter
merable choices available it is not possible for us to test
all oils offered in the market place, and their effects on
our equipment.
We realize that customers may choose lubricants other
than Vilter
tomers' right as owners of the equipment. When this
choice is made, however, Vilter
sponsibility for any detrimental affects those lubricants
may have on the equipment or system performance and
durability.
Should a lubrication related system issue occur with the
use of non-Vilter
in this or-
2 evaluation of the issue. This includes any parts' failure
caused by inadequate lubrication.
Certainly, there are many good lubricants in the market
place. The choice of a lubricant for a particular applica-
tion involves consideration of many aspects of the lubri-
cant and how it and its additive package will react in the
various parts of the entire system. It is a complex choice
that depends on a combination of field experience, lab
and field-testing, and knowledge of lubricant chosen.
Vilter will not accept those risks other than for our own
TM
lubricants.

Oil for Single Screw Compressors

.
2
Due to the need for adequate lubrication, Vilter
ommends only the use of Vilter
specifically for Vilter
research that has been performed, we are able to offer
specific lubricating oils. Use of oil not specified or sup-
plied by Vilter
compressors. Due to the innu-
TM
branded oil. This is certainly within the cus-
TM
is unable to accept re-
TM
oils, Vilter may deny warranty upon
TM TM
TM
compressors. With the extensive
TM
will void the compressor warranty.
TM
TM
rec-
TM
lubricants, designed