Sterling SIHI’s standard modules include liquid ring vacuum pumps complete with a motor, service liquid separator, base plate and pump support stool. The Sterling SIHImodular is used in an extensive range of applications and design options, including closed circuits with heat exchangers or liquid make-up facilities without heat exchangers. To meet the duties of the different applications, these systems offer eight pump sizes, each with a wide range of design options. Thermostatic control of the cooling water and service liquid maximises the cost benefits through reduced energy consumption. These modular vacuum compact systems are designed for ease of operation and increased safety for any applications.
 
Performance range:
Suction volume flow: up to 470 m³/hr
Suction pressure: 33 to 1013 mbar
 
Liquid make-up facility without heat exchanger:
- Manual service liquid regulation
- Ball type non-return valve
- Cavitation protection
- Rubber mounting feet or mounting rails
- Thermostatic service liquid regulation (regulating range 0 - 30ºC)
- Low level monitoring for service liquid
- Electric control panel
 
Closed circuit with heat exchanger:
- Plate heat exchanger (screwed)
- Thermometer between heat exchanger and pump
- Ball type non-return valve
- Cavitation protection
- Rubber mounting feet or mounting rails
- Regulation of service liquid level
- Cooling water connection at the heat exchanger, thermostatically regulated
- Electric control panel