Safe working with whip check

Question: For which machines or pressure classes does it make sense to use a rip-out protector?

Answered by Carsten Funk, Technical Director at DYNAJET:

DIN EN 1829-2 advises that a retainer – e.g. a hose whip check – should always be deployed for industrial high-pressure cleaners, to protect the operator if a hose happens to rip out from its connection elements.

A measure of this kind is mandatory

  • for high-pressure units with a pressure-generator power consumption of more than 40 kW (53.6 HP) or a maximum permitted operating pressure of more than 500 bar (7,250 PSI).
  • if the presence of people at the place of deployment can be foreseen – which is normally the case for devices with hand-guided spray devices.

This means that a rip-out protector is not necessarily required for the DYNAJET 500th [34 kW (46.2 HP), 500 bar (7,250 PSI)], while a safety device of this kind must be attached for the DYNAJET 800th [34 kW (46.2 HP), 800 bar (11,600 PSI)]. It is therefore also mandatory for the DYNAJET models 800me, 1000me and the UHP series.

As safety is always a top priority at DYNAJET, we recommend using a hose whip check as of a working pressure of 500 bar (7,250 PSI), true to our motto “safety first”. We do, of course, have a hose whip check available for you in our online shop (art. no. 547496). This robust whip check can be deployed for all hose sizes, safeguarding hoses connected to other hoses, to machines or to tools simply and reliably.

Further links:

To hose whip check