Ring Type Evaporative Units for LPG

A distinctive feature of this unit is that it can be controlled without using electricity (basic design).

The evaporative unit is supplied with a tank neck’s DN 500 lid. When ordering the evaporative unit, a customer should provide a detailed drawing of the mating ring for fixing a gas storage tank’s lid.

The unit’s basic design includes all the necessary components for an off-line operation.

Basic Specifications

  • LPG evaporation capacity: 100, 150, 200 kg.
  • Rated pressure for gas/heat carrier: 25/16 bar.
  • Inlet gas pressure: max. 15 bar (gas pressure in tank).
  • Outlet gas pressure: 20 mbar to 10 bar. Please specify the desirable outlet pressure when ordering.
  • The evaporative unit of basic design is supplied with one pressure regulator set to an outlet pressure of 300 mbar, with safety shut-off valves and safety relief valves.
  • Heat carrier temperature at inlet/outlet: 80/60 °C.
  • The required amount of heat carrier for evaporation of 200 kg of propane: 986 L/hour.
  • Maximum heat carrier pressure: 4 bar.


  • Evaporative assembly with a capacity of 100, 150 and 200 kg/hour.
  • Liquid separator with an integrated mechanical liquid-phase shut-off node to prevent the consumer’s gas pipeline from liquid phase intrusion.
  • Pressure gauges at the unit’s inlet and outlet.
  • Thermal controlled module to monitor the heat carrier temperature and supply gas to the evaporator unit.
  • An interflanged filtering strainer at the unit inlet.
  • A required package of check and shut-off valves.


Product code Item Name Rated Capacity
Basic Models
(without medium and low pressure regulators
VDM№ 20.30100/ZH/C Evaporative unit VDM 100 ZH/C 100 kg/hour
VDM№ 20.30200/ZH/C Evaporative unit VDM 200 ZH/C 200 kg/hour

All designs are without protective casing.

Additional Options

  • Protective tank neck cover with a lid of stainless steel.
  • Cover cavity lighting.
  • Emergency shutdown button.
  • Additional function of a response device with RS485 interface to integrate into the central control system for object protection and management.

If the above options are used, a control panel must be installed.