Taylor-Wharton EF-1500 - Manual (Page 9)

BT-481 REV. B
9
Fill and Vent Circuits
The liquid valve (V-3) communicates with the bottom of the vessel. Liquid is added or removed from the vessel through
this connection and valve.
The vent / trycock valve (V-2) is attached to a vertical tube in the upper portion of the vessel. The open end of the tube is
positioned at 90% liquid level based on the vessel volume. Opening the vent valve reduces pressure in the vessel during
filling. It also severs as a “full trycock”, venting liquid from the vessel when the liquid level exceeds 90%.
Figure 2: Fill and vent circuits highlighted in blue.
Express Fill Circuit
The Express Fill circuit may be used for filling from the Taylor-Wharton Express Cryogenic Delivery System or for top
filling by a cryogenic pump. A ball valve (V-1) and a check valves (CV-1) prevent product from escaping the vessel.
A fill stop valve (FSV-1) within the vessel prevents over filling. This device functions when filled by the Taylor-
Wharton Express Truck in automatic fill mode. The fill stop valve will not function when the vessel is filled by a typical
cryogenic pump.
Figure 3: Express Fill circuit highlighted in blue.
V-3
CN-2
CN-3
V-2
V-1
CV-1
CN-1