Taylor-Wharton Microbulk Tanks - Manual (Page 3)

TW-407 Rev.-
1
This manual provides information for the operation and maintenance of Taylor-Wharton’s new line
of MICRO BULK cryogenic gas supply systems. These products store cryogenic liquid and dispense it
as a warm pressurized gas. The MICRO BULK is designed for applications requiring nitrogen, argon,
oxygen or CO2 gas.
Additional product specifications, flow diagram, views, and important dimensions are shown
throughout this manual.
SYSTEM DESCRIPTION
The MICRO BULK consists of a cryogenic liquid vessel, piping, external vaporizer, and external pressure
builder.
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.
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 options consist of a pressure gauge, a differential pressure gauge, and a digital liquid
level gauge. The pressure gauge allows the vessel pressure to be monitored. Accurate measurement
of the vessel contents is provided by the differential pressure gauge and/or the digital liquid level
gauge.
The MICRO BULK 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 attached to the outer jacket. The free standing vaporizer is attached to
the pallet.
INTRODUCTION