LPG Vaporizers

750AX5 / 1000AX5 : Electric Water Bath type LPG vaporizer

  • Electric
  • Hot water
  • Steam

  • Electric Waterbath type
  • Capacity : 750 & 1000 kg/h
  • External Control Panel
  • Thermo Valve safety feature
  • Explosion-proof : Flameproof / Intrisic safety
  • Ex d ia II B T4 Gb / Class-1, Division-1

Idioma : English / Español

Advantages of Electric Water Bath type LPG vaporizer

Advantages of Electric Water Bath type vaporizer are controllability, vaporization stability and safety. Electric heater warms the water in the bath. And this hot water indirectly heats the liquid LPG running through the heat exchanger tube.
As the heat source is hot water with a gradual temperature change, the vaporization ability is stable and controllable. And even if there is a problem with the heat source, the vaporization ability can be exerted while the water is warm.

  • Water temperature controlled between 75-85℃
  • Spiral shape heat exchanger tube for smooth and stable vaporization
  • Thermo valve safety system to prevent liquid carry over
  • External Electrical Control panel for monitoring and Self-Diagnosis function

As the Liquid LPG (Propane) is heated indirectly by the hot water, it is safer than Direct Fire type vaporizers.
In some countries with specific gas regulations, Electric Water Bath type can be installed much closer to the tank / cylinders.
And its operation is noiseless.

Suitable applications : All Industrial and Commercial applications

  • Factory holding combustibles and explosives (e.g. Paper factories, Gun powder factories…)
  • Agribusiness operations (Grain dryer, Poultry farm heating and more)
  • Residential / office heating (boilers and etc)
  • Metallurgy purpose (e.g. Oxygen removal during copper smelting)
  • Business facilities with large gas consumption

Structual drawing of EV-750/1000AX5 LPG vaporizer.



  • Kagla approved THERMO VALVE prevents LPG liquid carryover.
    **1 Please refer operation principle in the picture below.
  • WATER LEVEL SWITCH and SAFETY THERMOSTAT prevents over-heating of water bath


  • Multi function electric control panel with digital indicator equipped.


  • Head cover of AX5 is removable for easy maintenance and overhaul.


  • Structure designed to minimize drainage to accumulate inside.

Function of Thermo Valve as a safety device **1

Visual image of how Kagla THERMO VALVE safety system functions to prevent liquid carryover

KAGLA THERMO VALVE is a safety mechanism to prevent Liquid Carryover to the consumption side.
The same system is equipped with all Kagla’s domestic electric water bath vaporizers in Japan.
And it is positioned at the top cover of the vaporizer.

When the gas consumption exceeds the vaporization capacity of the vaporizer, Vaporization may not catch up with gas consumption by the combustion equipment.
In this case, the non-vaporized liquid LPG may flow to downstream gas piping.
THERMO VALVE functions to avoid liquid carryover by shutting off the liquid at the inlet of the vaporizer.

It has metal tube to lead to the water bath with temperature sensing part at the end.
When the water temperature is high, the liquid inside the metal tube expands, pushing against the bellows and opening the valve.
If the water temperature drops due to some kind of trouble, the liquid inside the metal pipe will shrink and lose its force to hold down the bellows, causing the valve to close.

It doesn’t require any external power source(electricity, pilot air or else) and thus it works reliably under any conditions.

Self-diagnosis Function – Display on Electric Control Panel

  • Operation status of vaporizer can be monitored on the electric control panel from remote place.
  • Combination of “lighting on” and “flashing on/off” indicate both the operation status and the cause of the problem.
  • When the numbers 4 / 5 are displayed, operation of the vaporizer is interrupted.
Control Panel
Image of self-diagnosis display panel to control 750/1000AX5 vaporizer
Table of Operation Status
Decoding list of 750/1000AX5 vaporizer Self-diagnosis function error code


MODEL EV-750AX5 EV-1000AX5
Vaporization Capacity kg/hr 750 1000
U.S Gal/hr 375 500
lb/hr 1650 2200
Water Bath Capacity liters 400 800
Heat Exchanger Design Pressure kg/cm2 18
psig 257
MPa 1.77
Liquid inlet bore JIS 20K 25A or ANSI #300 25A
Gas outlet bore JIS 20K 50A or ANSI #300 50A
Hydrostatic Test Pressure kg/cm2 27
psig 386
MPa 2.66
Relief Valve Setting Pressure kg/cm2 17.5
psig 250
MPa 1.72
Flame-Proof Electric Heater kW 96 128
(32kWx3) (32kWx4)
Electric Requirement Heater 200/220/380/415/440/460V,3-Phase
Control Circuit 220V,1-Phase
Dimension(mm) Width 670 950
Depth 1024 1119
Height 1927 1930
Weight kg 550 900
Ib 1220 1990
Design Standard Approval Explosion-Proof Construction/NEPSI
(National Supervision and Inspection Center for Explosion Protection and Safety Instrumentation)
  • * Standard model : 380V
    Different voltage available upon your requests
You can scroll


Sample installation image

Installation image of AX5 vaporizer

Product Link-1: Space saving product Kagla PUREFLOW – Ball valve with built-in Strainer (*1)

Product Link-2: Medium pressure regulator Kagla KR series


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