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High Viscosity Sample Valve
Trico's Pitot Tube and Liquid Level Gauge Sampling
ports are designed to provide a safe, simple and effective method
of sampling fluids from sumps and non-flooded horizontal drain
lines. They ensure samples are drawn from the most appropriate
location of the sump reservoir, and that the sample is taken
from the exact location each time maintaining consistent sampling
for oil analysis.
A product enhancement review was completed
on various products during the integration of Schematic Approach
Inc. parts into the Trico product line. The one complaint customers
had on the Pitot Tube sampling ports was the time it took to
draw samples with higher viscosity fluids, specifically in colder
environments. Trico's Engineer team designed a new valve assembly
that is capable of retrofitting existing tubes and has an increased
flow rate due to larger internal diameter.
A test was conducted with three different fluids
using the original valve assembly and the new valve assembly.
The test measured the amount of time required to transfer a
typical oil sample when using a vacuum type of pump, a given
pitot tube length and standard length of poly tubing. The results
were as follows:
Original Valve Assembly
New Valve Assembly
Oil sample drawing
time when comparing original valve assembly to the new valve
assembly decreased by over half in all testing completed.
Any carbon steel Pitot Tube or Liquid
Level Gauge sample port purchased after February of 2005 was
supplied with the new high viscosity sample valve assembly.
The new valve assembly will require a different Sample Port
Adaptor for pulling samples. All new valve assemblies and sample
port adaptors are plated black where as the original versions
are plated with a clear coat. This was done to allow for easy
visual confirmation of which adaptor is required for those customers
who had previously purchased Pitot Tubes.
Part Number = 23001R
High Viscosity Valve Assembly required for upgrading existing
Carbon Steel Pitot Tubes and Liquid Level Gauges sampling ports
Part Number = 36133
Sample Port Adaptor for use with New High Viscosity Valve Assembly
and any Carbon Steel Pitot Tube and Liquid Level Gauge Sample
Port purchased after February of 2005.
Part Number = 36109
Sample Port Adaptor for use with any Carbon Steel Pitot Tube
and Liquid Level Gauge sample port purchased prior to February
of 2005 and any Stainless steel Pitot tubes and Liquid Level
Gauges as well as the 1/8” and ¼” NPT Sample
ports (both stainless and carbon steel). Note: Sample port Adaptor
36109 will open the check valve on the new valve assembly but
will not seal properly and oil leaking will occur.
The new valve assembly design will be carried
over to the Stainless Steel Pitot Tubes and Liquid Level Gauges
as well as the NPT Sample Ports in the near future. The NPT
Sample ports are also used in the Breather Kits, Catch Pipe,
and Spacer Flange product lines.
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| Photo of new pitot tube with
black plated valve assembly. |
Photo of new sample port adapter with black
plated cap (36133). |
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