P Type Site Trailer

With performances of up to 6000 psi (420 bar), the P Type trailer covers a multitude of water jetting applications.  These units are mounted onto a steerable site trailer suitable for operating on rougher site terrains.

Fitted with the unique Harben® P Type pump featuring multi-cylinder design ensuring pulsation free operation, tubular diaphragm pumping chambers eliminating piston seals, all moving mechanical parts immersed in hydraulic oil bath – moving parts in contact with the pumped media are limited to the diaphragm, inlet and delivery valves. The nature of the pumps design allows the use of “dirty” water, filtered to only 150 microns, whereas conventional plunger pumps need filtering to 50 microns, and gives the ability to run dry without damage.

  • Tank & tube cleaning
  • Surface cleaning & preparation
  • Hydrostatic testing
  • Variable pressure control, high flow capability
  • Vibration free high pressure water supply


  • Jetting guns
  • Foot control valves
  • Rotablast & Hoverclean floor cleaners
  • Pressure & flow control valves