Collection and efficient separation of refrigerants.

WITT receiver

Always offer the best solution:

This is why we produce from simple receivers to high efficient separators in various executions, i.e. without, single, double, multiple or dynamic separation. What sets us apart is our expertise, and we are happy to share it with you. Together we analyse the requirements and help you choose the ideal components for your application. You can rely on our many years of experience with refrigeration technology, which is reflected not just in our support, but also in the quality of our products.

WITT pressure vessels and WITT surge drums are technically mature and available for almost all refrigeration applications. Our technology guarantees reliable refrigerant separation and a high level of safety for all downstream components in the refrigeration system.

Our separator portfolio includes vessels with a diameter of up to 2200 mm and pressures of up to 40 bar in a capacity range from 50 kW to 10 MW in the following versions:

  • Receiver and thermosyphon collector
  • HAE high-capacity separator with single separation
  • HAZ high-capacity separator with double separation
  • HAM high-capacity separator with multiple separation
  • HAD high-capacity separator with dynamic separation

WITT surge drums are also used for building pumping stations, evaporator units and CO2-cascade systems.

HAM: unique technology

Thanks to its multiple high efficient separation system, the HAM ran reduce the size of the surge drum substantially. The resulting compact design let you benefit from a much smaller space requirement.

Capacity data


Capacity* [kW] Capacity** [kW] Overall height incl. valves [mm] Diameter [mm] Depth [mm] Connections [DN] PN [bar] Weight [kg]
HAE individual individual individual 273 - 2200 up to 9,000 25 - 350 12 - 56 variable
HAZ individual individual individual 273 - 2200 up to 9,000 25 - 350 12 - 56 variable
HAM individual individual individual 273 - 2200 up to 9,000 25 - 350 12 - 56 variable

HAE, HAZ, HAM scope of delivery

Is depending on your requirements, but consists at least of:

  •     Steel vessels in accordance with AD2000 and PED Module H1
  •     Connection for pump return, inlet
  •     Connection for suction gas, outlet
  •     Connection for condensate, outlet
  •     Stop valve
  •     Wooden supports
  •     Lifting eye

Are you interested in a WITT surge drum or receiver?

If so, just tell us the

  • refrigerant you use
  • the refrigeration capacity of the plant and
  • the evaporation and condensation temperature.

Our technical sales staff will be happy to select the perfect model for you.

WITT surge drum and receiver type HAZ 559
HAZ 559
WITT surge drum and receiver type HAZ 813
HAM 813
WITT surge drum and receiver type HAM 813
HAM 813
WITT surge drum and receiver type NDB 406
NDB 406
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