Bell & Gossett V1000840 Ultra Setter Large Pressure Independent Control Valves - Manual (Page 14)

Maintenance
Precautions
WARNING:
• All procedures must be performed by qualified personnel.
• When the process fluid is hazardous, thermal (hot or cold), or corrosive, take extra
precautions. Employ the appropriate safety devices and be prepared to control a
process media leak.
• Always wear protective clothing and equipment to safeguard the eyes, face, hands,
skin, and lungs from the particular fluid in the line.
Valve inspection
Periodically inspect the valve for signs of leakage or corrosion.
WARNING:
Risk for property damage, serious personal injury or death. You must replace the valve if
corrosion or leakage is found.
Service P/T Ports
The P/T readout ports and drain plugs come pre-assembled with a leading industrial
thread sealant, Loctite, and are tightened to appropriate levels. Any field adjustment of
factory installed components breaks the original thread seal and could cause leakage.
This adjustment necessitates the removal, cleaning, and resealing of those parts per the
following instructions.
1. Remove the desired component from the valve.
2. Clean off all of the old thread sealant using a wire brush and gentle abrasion if
necessary.
If the component or valve appears to have been damaged, replace it.
3. Starting with the second thread of the NPT male valvecomponent, apply a 360º bead
of Loctite 567 thread sealant/lubricant as shown. Follow Loctite handling precautions
as noted on the product label.
4. If Loctite is not available, it is recommended that you use RectorSeal No. 5 pipe thread
sealant for all non-glycol based applications, or any PTFE thread sealing tape. Be sure
to follow the manufacturer-specific handling precaution and application instructions
as noted on the product label.
5. Thread component into the valve until it is finger tight.
6. Apply torque to the following specification:
Size Type Torque
1/4” NPT P/T Readout Port, drain plug 9.0 ft-lbs. + 3.0 ft-lbs. / 0
Maintenance
12 Ultra Setter ™ Pressure Independent Control Valves Installation, Operation and Service Manual