Taylor-Wharton EF-1000 - Manual (Page 16)

BT-472 Rev. B
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Warning: Lines must not be installed such that they are susceptible to damage. A crushed safety line, for example,
could prevent the relief devices from functioning properly. This will cause a dangerous pressure build-up in the vessel
and in the lines.
Attach the lines to interior walls or secure them to overhead structural members as required by local codes. If damage to
the lines is a possibility, the damage prone sections should be placed inside protective jackets. Jackets may be
constructed from PCV pipe. For heavy-duty protection, construct the jackets from steel pipe.
The vessel safety valve (SV-1) and inner container safety disc (R-1) must be piped to the single fill box safety line. The
existing relief valve and safety disc must be removed and replaced with equivalent devices featuring outlets with pipe
threads. Consult the factory when specifying these components. Thread the compression fittings for the safety line of
the vessel (recommended above) into the safety valve and safety disc outlets. Connect the safety valve and safety disc
fittings to a compression union tee with the recommended tubing. Connect the compression union tee to the fill box with
the same tubing material.
The schematic below shows the components used in the wall mounted fill box. Fill boxes are available from Taylor-
Wharton. The fill box is designed to be mounted on an exterior wall with the pipe stub connections extending through
the wall. Use silicone sealant to weather-tight the fill box against the wall. Do not install the fill box at face height.
Mount the fill box approximately 3 to 4 feet above the ground.
After the installation is complete, perform a pneumatic leak test on the lines (fill, vent, and safety) per ANSI/ASME
B31.3-345.5. Isolate the vent line from the vessel during the leak test by closing the vessel vent valve (V-2). It will be
necessary to test the safety and fill lines while disconnected from the vessel. The vessel connection ends of the lines
should be capped during testing. Check all line connections at reduced pressure with an oxygen compatible bubble-
forming leak check solution.
Figure 10: Fill box detail schematic (side-view).
Legend: Fill Box Detail Schematic
Item # Description
1 Safety Line Connection, 1/2” Male Pipe Stub
2 Vent Line Connection, 3/8” Male Pipe Stub
3 Fill Line Connection, 1/2” Male Pipe Stub
4 Vent Line Relief Valve
5 Enclosure Vent
6 Vent Line Exhaust
7 Fill Line Ball Valve, 1/2” Female Pipe Thread, Fitted with proper CGA
fitting (295 for argon or nitrogen, 440 for oxygen)
8 Vent Line Shut-Off Valve, 3/8” Female Pipe Thread
9 Vent Line Pressure Gauge
10 Safety Line Baffle
11 Fill Box Enclosure
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