RE Series Electric Vaporizers

RE Series Electric Vaporizers are microprocessor controlled vaporizers capable of providing precise heat control for the vaporization of LP-Gas. Units are available in capacities ranging from 25 to 400 GPH. Standard units are completely self-contained requiring connection of LP-Gas inlet/outlet and heater circuit electrical power. All are factory tested on propane and shipped ready for use.
RE Series Electric Vaporizers have two high temperature protection devices to protect the system in the event of an over-temperature condition. A separate precision Snapdisk type high temperature switch is installed in the potentially hottest part of the heat exchange vessel. Incorporated within the electronic temperature controller is another high temperature monitor to provide protection against high temperatures. In addition, the electronic temperature controller protects against a low temperature condition in the event of over capacity or heater failure and the resultant loss of heat in any of the above cases, a safety shutdown will occur requiring a manual restart once the problem has been resolved.
The Vapor Outlet Line pressure is monitored by the Safety Relief Valve which opens when the line pressure exceeds 250 psig.
ASME Code Heat exchange pressure vessels with internal heat exchange cylinders. Each vessel is constructed of carbon steal material for its high strength, thermal conductivity characteristics and high resistance to thermal damage (melting down). Because it is made of high strength carbon steel, it is virtually impossible to damage the vessel even under the most extreme condition: a runaway heater in a dry vessel.

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Standard Features
• Ransome’s unique liquid level float switch configuration. The high liquid level switch prevents liquid from entering the outlet.
• Precision operating and high temperature switches. The electronic operating temperature controller operates the heater circuit(s) for the desired outlet vapor temperature set point. The high temperature switches tum the vaporizer off in case of runaway heater malfunction.
• The solenoid valve, in conjunction with the high liquid level switch, closes the inlet preventing the liquid from spilling over to the outlet.
• Electric resistance cartridge heaters. Located inside the heat exchange tubes or cylinders. They never come in direct contact with LP-Gas. Rather, they provide the heat required for vaporization through the walls of the heat exchange tubes.
• ASME stamped relief valve. Each vaporizer unit is adequately protected in accordance with NFPA 58 and California Title 8 codes.
• 480V AC, 3PH, 60Hz Input power for Heater Circuit.
• 110V AC, 1PH, 60Hz Input power for Control Circuit.
• All sizes are capable of infinite turndown and will maintain a ready supply of vapor from zero load to full capacity. At no load, only enough heat will be generated to maintain set point temperature.
• Standard electrical configuration Class I, Division II. (Class I, Division I, also available.}

Typical Installation
1. Equipment, piping and installation must be in accordance with provisions of NFPA58, and all applicable state, provincial and local codes.
2. Liquid pump may be required to provide sufficient pressure to inlet of vaporizer during conditions of low tank pressure.
3. Outlet pressure regulator should be no more than 24 inches from vaporizer outlet and located at or above centerline of vaporizer outlet.
4. Do not install a separator, dripleg or other liquid trap upstream of outlet pressure regulator.
5. Regulator outlet pressure must be adjusted to a pressure below the vapor pressure of the saturated LP-Gas at lowest operating temperature or vapor may re-liquefy in downstream piping.
6. Liquid piping system must allow for occasional reverse flow toward supply tank to prevent excessive pressure during operation.

Vessel Shell: SA106 Grade B Carbon Steel.
Heat Exchange Cylinders: SA214 Carbon Steel.
Connections: SA105 Carbon Steel

* Rated capacity in GPH of propane at 0 degrees F with a minimum vapor outlet temperature of 100 degrees F.
Note: Rated capacity for butane will be lower than that of propane.