Measurement principle
The DirectDrive pressure gauges do not require a movement. The pressure element is directly connected to the pointer or acts as a pointer itself. The shape of the pressure element provides for a pointer rotation proportional to the pressure. The model PG81HD measuring element is designed in a spiral form and the model PG91HD in a helical form.
The advantage of the DirectDrive version is the optimised shock and vibration resistance.
The case and the process connection of the heavy-duty version are made from a single piece of solid brass. This makes the models PG81HD and PG91HD much more robust than the models PG81 and PG91.
Ranges of use
These pressure gauge are particularly suited for the operating conditions of pressure regulators and pressure valves on fixed and portable gas cylinders.
Individual customer variants
Based on many years of experience in manufacturing and development, WIKA is happy to offer support in the construction and production of customised solutions.
