PVR - manufacturer of valves and equipment

Pressure reducing valves DDI

DDI pressure reducing valves are a new generation product which is compact, very strong and easy to use.

They solve problems with excess pressure linked to using gas welding equipment and provide many advantages:

  • Very easy to use: the recommended pressures for welding or cutting are determined by two green zones - welding and cutting - for the Oxygen Pressure reducing valve and one green zone - welding cutting - for the Acetylene Pressure reducing valve.
  • Operating pressure always right: operating pressures are preset in the regulators so that excess pressure incidents are avoided, providing extra safety for installation and saving gas.
  • High-pressure manometer protected by a shock-resistant polycarbonate shell.
  • Constant pressure: a patented device (INPI = French statistics institute) ensures that this pressure reducing valve supplies constant operating pressure when the cylinder is being used, as far as the balance point between upstream pressure (residual pressure in the cylinder) and downstream pressure (service pressure). This innova-tive device gives the same result as a two-stage pressure reducing valve.

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