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Research corrosion & erosion, and retubing of entire coolers. read more

Innovation / Development

Orbital welding, advice on design & product development are only the beginning. read more


Inspection, guidance with claims & market research are examples of our quality services. read more

The SIR group is specialized in both industrial refrigeration and installation on land and on board of ships. read more

Example projects

Examples from the market that show to what level of quality our service is. read more


Feel free to contact us with any question related to our service. read more

Shell & Tube

All about the shell and tube heat exchangers we offer at SIR. read more


Geachte bezoeker,

As former employees of Apparatenfabriek Helpman BV (ApHel) and Helpman Shell & Tube Products BV (STP) we build up our knowledge concerning refrigeration systems and components over 30 years of experience, which we now offer to the industrial refrigeration branch. The cooperation consist out of:

The SIR group is specialized in industrial cooling techniques, both for onshore installations (cold stores. process cooling etc.) as for on board of ships (air-conditioning, cargo-cooling etc.). The knowledge and experience of SIR can be applied to solve problems considering erosion and corrosion or for example problems with the capacity of a system component. Both Shell & Tube heat exchangers as air-coolers and air-cooled condensers are within the range of our expertise.

Our experience in New Build - Service - Innovation - Retubing guarantees a reliable solution for your problem. SIR employees can be operational around the world within a minimum pre-preparation time.

Ing. Dick Siekmans

Ing. Willem Engberts

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