Capacities from 200 gph to 3000++ gph
Propane, Butane, and other LPG
Shell-and-Tube Heat Exchanger
Ex-proof Class I, Div 1, Group D
Small Footprint, High Efficiency
Siemens or Allen-Bradley PLC
High-resolution color LCD Display with Touch
Screen Operator Interface, alarm history, and local trend recording.
Remote Monitoring and Operation
Local Start/Stop Station
"Smart" Liquid Carryover Protection
stamped external Relief Valve
All-welded Liquid Inlet Assembly
Flanged Hot-Water Inlet with Temperature Regulator
Option: Walk-in Control Room
Option: Wireless Remote Access
Option: Integration with LPG/Air Mixers for Standby Systems and
Peak Shaving Systems
Systems offers a complete line of circulating-hot-water vaporizers in
capacities from 200 gallons per hour to 3000 gallons per hour.
heat exchanger tube bundle is of multi-pass design to transfer the
maximum heat to the liquid. The tube bundle and all propane piping
conform to Section VIII, Division I of the latest edition of the ASME
Boiler and Pressure Vessel Code. The pressure vessel carries the ASME
"U" stamp and is National Board registered.
VWB vaporizers in
standard configuration include temperature regulator; "smart" liquid carryover protection with Rosemount
pressure transmitter and temperature transmitter in the vapor outlet;
and liquid inlet valve. Temperature gauges in water inlet and outlet,
and in pressure vessel shell and vapor outlet, are standard.
wiring, controls, and electrical components and their installation
comply with the latest editions of NFPA #58 and NFPA #70. They are
suitable for installation in Class I, Div. 1, Group D locations.
All safety devices of the vaporizer,
including the dual liquid carryover protection, are monitored by a
programmable logic controller (Allen-Bradley MicroLogix-1100 or Siemens
S7-1200), which is connected to an operator interface with
high-resolution LCD display and touch screen. The operator interface
provides start/stop control for the vaporizer; it displays the system
status, and any failure conditions that may occur, in plain English
(with date/time stamp). The electrical enclosure for the PLC and the
operator interface are to be installed in non-classified location.
A small explosion-proof
enclosure at the vaporizer provides local start/stop and alarm reset
The hot-water consumption
of VWB Vaporizers is proportional to the actual vaporization rate. The
consumption rates given in the table below are based on 185°F (85 °C)
water temperature and 40°F (22°C) inlet/outlet temperature drop.