Taylor-Wharton EF-1500 - Manual (Page 20)

BT-481 REV. B
20
Withdrawing Product
Internal Vaporizer
To withdraw gas from the Express Fill 1,500, connect a suitable line regulator to the gas withdrawal connection (CN-7).
Connect the outlet of the regulator to the application. Follow these steps:
1.
Open the pressure building valve (V-6). Monitor the pressure gauge (PI-1). When the pressure exceeds
the desired delivery pressure, continue.
2.
Open the gas withdrawal valve (V-11).
3.
Adjust the line regulator to desired delivery pressure.
External Vaporizer
To withdraw product from the Express Fill 1,500, connect a suitable vaporizer to the vaporizer inlet connection (CN-4).
Equip the vaporizer with a relief valve sized in accordance with the vaporizer manufacturer’s recommendations. Install a
line regulator downstream of the vaporizer. Connect the outlet of the regulator to the application. Follow these steps:
1.
Open the pressure building valve (V-6). Monitor the pressure gauge (PI-1). When the pressure exceeds
the desired delivery pressure, continue.
2.
Open the vaporizer inlet valve (V-4).
3.
Adjust the line regulator to desired delivery pressure.
Withdrawing Liquid
Attach a transfer hose from the receiver vessel to the Express Fill 1,500 liquid connection (CN-3) and open the adjacent
liquid valve (V-3). The pressure in the container will drive liquid product out through the valve as long as the container
pressure exceeds that of the receiver.
Changing Gas Service
The Express Fill 1,500 may be used for argon, oxygen, or nitrogen service. Follow these steps to properly change gas
service:
1.
Safely empty all liquid from the container.
2.
Open the pressure building inlet and outlet valves (V-6 and V-7) and the vent valve (V-2) to vaporize any
residual liquid that may remain in the bottom of the vessel. It may require an hour or longer to vaporize all
the residual liquid.
3.
To ensure purity, it is recommended that the Express Fill 1,500 be evacuated with a suitable vacuum pump.
The ultimate vacuum reading should be at least 20 inches of mercury.
4.
Replace the fittings for the liquid, top fill, and use connections with the appropriate fittings shown in the
chart below. Use Teflon tape or another suitable thread sealant when threading the fittings into the
connections.
5.
Remove any decals identifying the previous gas service. Attach new gas service identification decals.
Gas Service Valve Description TW Part Number
Liquid & Top Fill Fitting CGA 440 x 1/2” NPT 6514-8990 (2 required)
Oxygen
NA Oxygen Service Decal GL55-9C52
Liquid & Top Fill Fitting CGA 295 x 1/2” NPT 7355-4698 (2 required)
Nitrogen
NA Nitrogen Service Decal GL55-9C51
Liquid & Top Fill Fitting CGA 295 x 1/2” NPT 7355-4698 (2 required)
Argon
NA Argon Service Decal GL55-9C53