High Pressure Pump Operator – Refresher training

FIXED price: You record the date of your training, payment of the course must be done immediately. In case of moving or canceling the training, the entire course fee will be charged again in accordance with the General Terms and Conditions. The choice for ‘FIXED’ gives you a considerable discount on our existing prices.

FLEX price: You opt for flexibility. You can move free of charge once, rescheduling a second time is possible at 50% of the course price. Resistance is allowed no later than 5 working days before the start date course in accordance with the general Terms and Conditions. Payment for companies 30 days after receipt of invoice. With ‘FLEX’ you choose extra service, for the normal price.

The 1-day refresher training High Pressure Pump Operator (HDM) is designed for drivers who need to renew their certificate of High Pressure Pump Operator (HDM) by SIR.
In this course qualified and experienced instructors prepare the participants for the theoretical extension exam High Pressure Pump Operator (HDM).  According to the SIR regulations, people who operate high-pressure systems should be in possession of the basic High Pressure Pump Operator (HDM) certificate (for performing spraying High Pressure Water Jetter (HDS) is a sufficient certificate).  

Content training


  • Pressure, cavitation, reaction force 
  • Buildup of a high-pressure system 
  • The use and operation of a high-pressure system 
  • Safety regulations 
  • Calculating with pressure 



  • Buildup and operation of high-pressure system 
  • Daily maintenance 
  • Proper use of Personal Protection Equipment (PPE) 


The training consists of 1 day of instruction from 08.00 to 16.00. For groups and in-company training, the course and times can be adjusted (evenings and weekends are also possible). The exam is taken by SIR and conducted directly after the course. When planning a course one should take into account an application time of 10 working days for the SIR exam. 


With sufficient result, the candidate receives the High Pressure Pump Operator certificate (HDM). The High Pressure Pump Operator (HDM) certificate is valid for 2 years. 


The High Pressure Pump Operator (HDM) training and exam can be conducted in Dutch and German. For this we are happy to make you a tailored offer.  


The training and the exam can be offered both at DELTA or at a companies own location. Prerequisite for this is compliance of the location with the requirements set by the SIR for the practical exam. We can provide further information on this.  

Conditions for participation

The High Pressure Pump Operator (HDM) extension exam is only open for applicants in possession of a valid High Pressure Pump Operator (HDM) certificate. 


The price on the right upper corner of this page includes course material, use of the practice means, lunch, coffee and tea. The exam will be charged separately by the SIR and amounts € 64,50 (price in 2015) per person for SIR members. The manual costs €32,25. For non members SIR charges 100% extra. All prices exclude 21% VAT.  

Additional information

  • The schedule of our courses can be found under Cursus Planning.
  • These courses are very suitable for individual participants or small groups.
  • Feel free to contact us if you cannot find a specific course.
  • For groups or/and in company courses we are happy to make you a customized offer.