ABOUT ESK Schultze

ESK Schultze GmbH & Co.KG is a manufacturer of refrigeration, air-conditioning and heat pump systems located in Velten, Germany. ESK has a series of standard components approved for natural refrigerants including CO2 (R744) up to 130 bar, ammonia (R717) and propane (R290).

ESK was founded in 1960 and began manufacturing components in 1984. The company places emphasis on quality and safety, bearing TÜV certification and 100% high-pressure testing of all components. ESK exclusively uses superior welding methods and equipment. All elements are purchased from EU countries and finished components are made in-house, in Germany.

The high working pressures, gas velocities and as well the special properties of CO2 as a refrigerant create special demands for the selection of materials and welding processes to ensure the required product safety. ESK offers all components in an outstanding quality especially in respect to the execution of the flange connections and the welding seams.

Products ranges include:

  • Oil level regulators
  • Oil separators
  • Oil separator reservoirs
  • Oil reservoirs
  • Check valves
  • Oil compensation adapters
  • Shut off valve set/ Adapter sets
  • Strainers
  • Suction line accumulators
  • Filter driers
  • Discharge line mufflers
  • Liquid receivers
  • Level control
  • Accessories & spare parts

Products are available in more than 48 countries.

With an every increasing original equipment manufacturer (OEM) business, ESK has been able to reinforce delivery reliability, storage, high quality of materials, more complete product ranges and client services.




Electronic Oil Level Regulators ERM5 / ERM5-CDH
2016 ESK Products Summary
ERM 5 Electronic Oil Level Regulators
Operating Instructions
Flyer: FA Suction line Accumulators 
Flyer: FT Filter Driers
Flyer: SGS Oil Reservoirs and OSA Liquid Receivers 
Flyer: ER4 Electronic Oil Level Regulators
Vibration Eliminators VAFS for CO2
Application range for Natural Refrigerants


Company website