Taylor-Wharton VJ Series Tanks - Manual (Page 21)

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5. Leaking safety valve. a. Dirt or ice under valve or disc.
b.
Improper valve set point.
c.
Damaged valve seat or disc.
a. Thaw out valve. Replace if necessary.
b.
Replace valve.
c.
Replace valve.
6. Tank vacuum leak. a. Leak in Vacuum Jacket Relief Device.
b.
Evacuation Valve leak.
c.
Vacuum Probe or Vacuum Valve
d.
Tank Vacuum Jacket leak.
a. Refer to Analyzing Vacuum
b.
Replace Evacuation Valve diaphragm.
c.
Replace faulty component. Re-
d.
Refer to Analyzing Vacuum
7. Inability to obtain desired vacuum
when re-evacuating.
a. Defective vacuum pump.
b.
Incorrect vacuum reading.
c.
Defective Vacuum Gauge Tube.
d.
Leak in connections between vacuum
e.
Excessive moisture in insulation.
f.
Moisture in pump lubricant.
a. Repair or replace vacuum pump.
b.
Repeat vacuum measurement.
c.
Replace Vacuum Gauge Tube.
d.
Repair Leaks
e.
Evacuate insulation space with cold
d.
Replace lubricant.
RECOMMENDED TOOLS, EQUIPMENT AND MATERIALS
Components in the "Reference" column are provided to indicate where various tools, equipment,
and material are used. For locations of various suppliers listed, refer to the Address List section.
REFERENCE DESCRIPTION PART NUMBER SOURCE
All Piping Snoop Liquid Leak Detector - Nupro Company
Liquid Level Gauge Pointer Puller - ITT Barton
Vacuum Gauge Tube Krylon Crystal Clear Coating
Vacuum Gauge
Liquid High Vacuum Sealant 4oz.
Epoxy
1301
TV-4A, VT-6
4036
A-12
Borden
Teledyne Hastings-Raydist
Airserco Mfg. Co.
Armstrong Prod.
Vacuum Jacket Relief Device Celevacene Grease
Chlorothene VG
-
-
Consolidated Vacuum Corp.
Dow Chemical Co.