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Section 5 • Maintenance/Service
Oil Sampling
WARNING
When working with LFG, NG or other dangerous
or fl ammable gases, ensure there are adequate
ventilation and vapor detectors. Refer to national fi re
and building codes. Failure to comply may result in
serious injury or death.
WARNING
Improper selection or application of fl uid diagnostic
products can cause serious injury or damage. The
user is solely responsible for making the fi nal
selection of products to ensure that the overall system
performance and safety requirements are met. These
include reviewing fl uid compatibility with materials
and seals.
WARNING
Avoid skin contact with any condensate or oil. Wear
rubber gloves and a face shield when working with
condensate or oil. Failure to comply may result in
serious injury or death.
DANGER
Sampling often releases hot fl uid under high
velocity/pressure.
1. Hot fl uid can cause severe burn injuries.
2. Skin penetration from high-pressure fl uid
can occur, causing severe injury, gangrene
and/or death. If this happens, immediate-
ly contact an experienced medical practi-
tioner.
3. Hot fl uid escaping to the atmosphere can
ignite if it comes into contact with an igni-
tion source. This can lead to severe property
damage.
Recommendations
1. Make sure you´re aware of the risks associated with
the fluid being sampled or worked with. Check with
the manufacturer.
2. If you have not been trained to sample, service, re-
pair, or troubleshoot a pressurized fluid system,
especially a hydraulic system, you are at risk of suf-
fering an accident. Seek the proper training before
proceeding.
HPLD Single Screw Compressor • Installation, Operation and Service Manual • Emerson • 35391HP
Installation of The Oil Sampler Valve
1. Lubricate the threads (1/4"-18 NPT) with Teflon
tape.
2. Tighten to the max. torque 25 ft-lbs (34 N-m). Use
11/16" open wrench. Avoid over tightening.
Pre-Sampling
Use the Vilter Oil Analysis Kit (VPN 3097A) to collect an
oil sample for analysis, see Figure 5-1.
Once the sample has been taken, the label must be
filled out and pasted on the bottle, and both must be
placed inside the mailing tube and sealed with the pre-
addressed mailing label.
Figure 5-1. Oil Analysis Kit (VPN 3097A)
Below are a few points to remember when taking a
sample:
•
Sample running compressor units, not cold units.
Sample after minimum 30 minutes of compressor
operating time.
•
Sample after the oil filter.
•
Sample according to the sampling procedure below.
•
Ensure sampling valves and devices are thoroughly
flushed prior to taking a sample.
•
Ensure samples are taken as scheduled in the
Maintenance and Service Schedule.
•
Send samples to the oil analysis lab immediately af-
ter sampling, do not wait 24 hours.
5 – 3
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