Solutions for pressure, temperature, force and level measurement, flow measurement, calibration and SF6 gas solutions from WIKA are an integral component of our customers' business processes.
This is why we consider ourselves to be not just suppliers of measurement components but rather more a competent partner that offers comprehensive solutions in close co-operation with our customers – customised and precisely designed products for the exact requirement.
Back to overview
Brass or stainless steel
The overpressure protector for pressure measuring instruments is a piston valve. Through a helical spring, the outlet position is maintained until the pressure acting on the piston overcomes the back pressure of the spring, thus closing the valve.Once the pressure drops below the closing pressure by approx. 25 %, the valve opens again and the piston returns to its rest position under the action of the spring force.
Factory settingThe closing pressure is set to half of the span of the respective setting range.
Set values for factory mountingWhen mounted onto a pressure measuring instrument by WlKA, the overpressure protector is set to 1.1 times the full scale value of the pressure measuring instrument.
Setting the closing pressureIf the adjustment screw is turned clockwise, the spring force of the helical spring increases and, with it, the closing pressure. By turning the adjustment screw anti-clockwise, the closing pressure is reached at lower pressure values.
For the setting of the optimal closing pressure, the temperature at the measuring location must be taken into account.
This overpressure protector is not suitable for use as a controller or for control and regulation purposes.
Models IV20, IV21
2-valve manifold
There are currently no documents on your wish list. You can add any document from the download area to your wish list. To do this, select the desired language using the flag symbol.
The maximum number of 20 entries was reached.
To receive your download link via e-mail, enter your address here:
The e-mail address is invalid.