14.
Slowly open the pre-charge valve on the constant pressure cylinder and allow the constant pressure cylinder to fill to
the desired volume, not to exceed 80%.
Never fill the cylinder above 80% of its capacity. Allow at least 20% room for product expansion should the cylinder be exposed
to increased temperatures.
15.
After the transfer is complete, close composite sample draw off valve F on the LS-14 and the inlet valve on the constant
pressure cylinder (
,
, or
).
16.
Disconnect the constant pressure cylinder from composite sample draw off valve F (
, or
).
17.
Tag the constant pressure cylinder and prepare it for transportation to the testing laboratory in accordance with
company policy.
18.
If desired, repeat steps 9–17 to transfer any sampled product remaining in the LS-14 to additional constant pressure
cylinders for laboratory analysis.
Draining the LS-14
Any sample remaining in the LS-14 must be eliminated prior to the start of the next round of composite sampling.
19.
Open purge/return valve D on the LS-14 to return any remaining product to the pipeline (
, or
).
If pneumatics is used to actuate the mixer, air may be relieved from the mixer as the LS-14 is drained.
20.
Purge the LS-14 prior to beginning a new round of composite sampling. See
Section 2.3, Preparing for Sampling,
instructions on purging the LS-14.
21.
Once the LS-14 has been purged, a new round of composite sampling may begin.
21
IOM-131
MODEL: LS-14
REV: F
13839 West Bellfort Street, Sugar Land, TX 77498
welker.com
Service Department 281.491.2331