Pressure monitoring cylinders

Pressure monitoring cylinder
for manifold connection with O-ring

Description

Pressure monitoring cylinders convert a hydraulic signal (test pressure/pressure loss) into a mechanical signal that can be evaluated by means of electrical or pneumatic switch units. They are used predominantly in hydraulic systems that are not connected to a pressure generator e.g. fixed clamping systems. The pressure monitoring cylinders are equipped with three compression springs which can measure any pressure between 15 and 500 bar depending on their combination and adjustable pretensioning.

When the preset pressure is reached, the piston moves through a stroke of 2,5 mm. This can be detected by means of a limit switch, an inductive proximity switch or pneumatic/electric booster relay. The particular advantage of this pressure monitoring cylinder lies in the fact, that after just minimal pressure loss (max. 15 %) the piston returns to its starting position, so generating a signal that can eg. stop the production process.

Special features:

adjustable preload
evaluable mechanical signal
signal already at low pressure loss
suitable for static clamping systems
increases the functional reliability of clamping systems

Installation instructions:

Dismount the springs which are not necessary for the test pressure so that only the springs according to the table “Setting ranges” remain in the cylinder. Fine adjustments are made on the front adjustment nut. Adjust the signal element that is to be operated by the DUZ in extracted position of the piston. Assemble all supplied fastening elements. Thus, the switching point is reversible. When using the drilled channels in the cylinder with manifold connection, the connection bore must show a maximum diameter of 6 mm.