Taylor-Wharton EF-1500 - Manual (Page 6)

BT-481 REV. B
6
INTRODUCTION
This manual provides information for the operation and maintenance of Taylor-Wharton's line of Express Fill 1,500
cryogenic gas supply systems. These products store cryogenic liquid and dispense it as a warm pressurized gas. The
Express Fill 1,500 is designed for applications requiring nitrogen, argon, or oxygen gas. These products are ideal for on-
site filling with Taylor-Wharton’s Express cryogenic liquid delivery vehicle. An external vaporizer (order separately)
may be used with this product.
Additional product specifications, flow diagram, views, and important dimensions are shown on the general arrangement
drawing provided in the appendix of this manual.
System Description
The Express Fill 1,500 consists of a cryogenic liquid vessel, piping, internal vaporizer, and external pressure builder.
The system vessel has an approximate gross capacity of 1,500 liters. The vessel consists of a pressure vessel suspended
inside a jacket. The space between the pressure vessel and the jacket is evacuated and insulated with a micro-fiberglass /
aluminum foil radiation shield. Both the inner pressure vessel and vacuum jacket are constructed of type 304 stainless
steel. All models are designed and constructed in accordance with ASME Section VIII.
Piping circuits allow the vessel to vent, fill, pressurize, and provide pressurized gas. Piping is type-304 stainless steel.
Valves are brass. Fittings are machined from forged brass and type-316 stainless steel.
Instrumentation consists of a pressure gauge and a differential pressure gauge. The pressure gauge allows the vessel
pressure to be monitored. Accurate measurement of the vessel contents is provided by the differential pressure gauge.
The Express Fill 1,500 automatically maintains pressure by vaporizing cryogenic liquid in a controlled fashion. All
energy for building pressure and vaporizing liquid is provided by heat from ambient air. The pressure building coil is an
external aluminum finned extrusion attached to the outer jacket.