Message Us

Your Name (required)

Your Email (required)

Your Message

Contact Us

  • Telephone Number:01226-245533
  • Email
  • Address:Gama Spray Systems Ltd.,
    Unit E, Zenith Park
    Whaley Road, Claycliffe,
    Barnsley, South Yorkshire S75 1HT

Close Quick Contacts

Quick Contacts

Evolution G-250H High Pressure | Hydraulic Proportioning Unit

Technical specifications
Maximum Output: 9 kg/min
Max. Rated Pressure: 240 kgf/cm2 (23,5 MPa)
Heating Power: 18 Kw
Hose Heating Power: 4 Kw
Electrical: 41 amps (47,4 amps)
79,6 amps (92,6 amps)
Weight: 282 kg
Dimensions: 1200 mm x 900 mm x 700 mm
Documentation: Brochure

Service Manual

Parts Identification


Features and characteristics

The new evolution G-250H hydraulically driven proportioning unit has been designed and manufactured to fulfil the most demanding requirements of industrial foam in place applications of two component systems requiring high dosing precision to assure the best mixing quality of the chemical components. Its particular configuration facilitates easy access to all its components, simplifies the control functions and significantly reduces maintenance time.

Primary Heating System

The primary heating system consists of two separate hydraulically and electrically independent block heaters. Each heater incorporates 6 each 1500W  heating elements that supply a total power of 9000W  with the necessary control and safety features for the accurate and reliable performance of the system. The special design of the heaters allows for a DT of 50ºC and enables it to reach application temperatures of 90ºC in normal environmental temperature conditions.

Hose Heating System

The hose heating system is designed with 4000W isolation transformer that allows the heating of up to 93m. The system incorporates an innovative concept of heated hose in which the copper resistance element is homogenously spread around de hose. This allows accurate and uniform control of the application temperature of the products and avoids the heat concentrations that are produced in traditionally manufactured hoses.

Control Panel

The control panel consists of a touch screen that incorporates specially designed software to facilitate the selection and control of all working parameters in quick and easy manner. A sophisticated alarm system warns the operation of any error in the process to ensure the right application of the products. As an additional feature, a phase connection alarm is incorporated into the design to avoid costly repairs from errors or mistakes when plugging the proportioner
into the electrical supply.

Proportioning Pumps

A double acting hydraulic cylinder drives two directly opposed chemical proportioning pumps. This design eliminates asymmetrical loads and assures prolonged life of the pump packing seals as well as assures a constant stabilised pressure in order to achieve perfect mixing of the chemical components. Several pump sizes are available to obtain different volumetric ratios.