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Temperature Shut-off Valve
Installation Notes
1. TSV's mounted in this location will protect all analyzers, components downstream and
personnel but abnormally high sample temperature excursions may cause the secondary
cooling system (chiller) to become overloaded.
2. TSV's mounted in this location will protect all analyzers, however pressure, temperature and
flow indicators as well as BPR/RV's and personnel, could all be exposed to dangerous high
temperature sample.
3. Maximum downstream-regulated pressure should be limited to 250 psig.
3.0
Operation
The TSV is equipped with a indicating reset button. When the valve is in the tripped mode
(closed) the red indicating band on the reset button is visible. If the valve is received in the tripped
position it must be reset to allow sample flow.
This is accomplished by simply pushing in the reset button until it latches. In conditions where
ambient temperatures are above the valve trip point it will be necessary to hold the reset button in
until cooled sample allows the valve to latch.
If the TSV trips during sampling operations, isolate the analyzers on the line or lines affected.
Correct the problem causing the excessive sample temperature and reset the TSV. It may be
necessary to hold the reset button in momentarily until the TSV will reset. After the TSV is reset,
reinitialize sample flow to the analyzers.
4.0
Maintenance
Do not disassemble this valve! There are no customer serviceable components in this valve.
Occasional exercising of the valve may be performed by raising the sample temperature by either
increasing sample flow rate or decreasing cooling water flow rate. This may be necessary if
sample water is exceptionally dirty. Verify that all analyzers are isolated before performing this
operation. If a replacement valve is needed, contact Sentry Equipment Corp.
SENTRY EQUIPMENT CORP • 262.567.7256 • Fax: 262.567.4523 • sales@sentry-equip.com • www.sentry-equip. com
SPD 13.1.2 Rev. 7
3
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