The pressure gauge guards SPM 903, are suitable to protect the pressure sensors against the destroying effects of aggressive fluids; by construction, they warranty as well the ultra-pure fluids not to be in contact with anything else than the synthetic materials. They are mechanically resistant through their design and by the use of high quality plastics with a PTFE coated diaphragm.
The process pressure is transmitted to the sensor through a non-compressible fluid such as silicon oil. For mounting a sensor on the SPM guard, the filling with oil is done under vacuum. We propose the guards alone but also, complete assembly including sensor, filling/mounting and guard (on request).

Upper cover (1): Glass fibre reinforced PP
Base plate (2): PVC-U, PP, PVDF
Diaphragm: PTFE coated EPDM  
Process connection: BSP 1/2” Female

Pressure limit:
10 bar at 20°C as a maximum
(decreases with increasing temperature)

Temperature limits:
0...+60 °C with PVC-U base plate
(for the process fluid) +10...+80 °C with PP base plate
-30...+100 °C with PVDF base plate