Emerson Vilter VSS Installation, Operation And Service Manual

5 – 8
Section 5 • Maintenance/Service
VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
Installation of The Oil Sampler Valve
1. Lubricate the threads (1/4”-18 NPT) with Teon
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 5-2.
Once the sample has been taken, the label must be
lled out and pasted on the bottle, and both must be
placed inside the mailing tube and sealed with the pre-
addressed mailing label.
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 lter.
• Sample according to the sampling procedure below.
• Ensure sampling valves and devices are thoroughly
ushed 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.
Figure 5-2. Oil Analysis Kit (VPN 3097A)
Figure 5-3. Oil Sampler Valve (VPN #3708A)
For Gas Compression Applications
Sampling Procedure
THE SAMPLING PRESSURE RANGE IS LIMITED BETWEEN
5 TO 750 PSI (0.03 – 5.17 MPa). IF THE OPERATING
PRESSURE IS ABOVE 750 PSI (5.17 MPa), THE OIL
SAMPLING MUST BE DONE WHEN THE COMPRESSOR IS
NOT RUNNING AND ENSURE THE SYSTEM PRESSURE IS
WITHIN THE 5 TO 750 PSI (0.03 – 5.17 MPa) SAMPLING
RANGE.
A 1/4” NPT oil sampling valve is provided either in the oil
lter canister cover or in the piping after the lter (See
Figure 5-3 or 5-4(a) according to application).
1. Unthread the oil sampling valve cap. For valve
#3709A, you also need to turn the knurled locknut
clockwise, see Figure 5-4 (b).
NOTE
DO NOT remove the valve from the piping or lter
housing.
2. Remove the cap of the oil analysis bottle and posi-
tion it carefully under the valve spout. (Make sure
the valve spout is rotated to the downward position)
SLOWLY AND VERY CAREFULLY press the “PUSH
BUTTON” with your nger to open the valve, and re-
lease the button to close it, see Figure 5-5.
WARNING
If the valve is opened too rapidly, a foamy pressurized
jet of oil will gush out and splash outside the container.

Emerson Vilter VSS Specifications

General

Brand	Emerson
Model	Vilter VSS
Category	Air Compressor
Language	English