Seismic pressure gauge housing is airtight structure, can effectively protect the internal parts from environmental impact and contamination intrusion. Seismic gauges are filled with damping fluid (usually silicone oil or glycerin) in the housing, which is resistant to vibration in the working environment and reduces the pulsation of the medium pressure. Seismic gauges are mechanical dial gauges with filling liquid in the case or mechanical pointer (or rotary dial) gauges with a filling liquid and a damper in the case, Including fittings, spring tube, current limiting screws, etc.), gear transmission, indicating device (pointer and dial) and the shell (including case, table cover, table glass, etc.) formed. |