Yn-50 / 60 / 100 / 150 seismic pressure gauge: suitable for places with severe environmental vibration, able to withstand pulsation, impact and sudden unloading of medium, with stable and clear indication. It is widely used in machinery, petroleum, chemical industry, metallurgy, mining, electric power and other departments to measure the pressure of non corrosive medium on copper and copper alloy. Long service life, is the replacement of ordinary pressure gauge... Protection grade IP65. Y-60bf / 100bf / 150bf all stainless steel pressure gauge: all instruments are made of stainless steel, and the main parts are ocr18ni12mo2ti, which is suitable for corrosive gas environment. The resistive muffler can detect the pressure of strong corrosive medium, which is widely used in petroleum, chemical and metallurgical industries. Y-60bf / 100bf / 150bf / Z impact resistant stainless steel pressure gauge: all instruments are made of stainless steel and the main parts are made of ocr18ni12mo2ti. It is suitable for corrosive gas environment and can detect the pressure of strong corrosive medium. It is widely used in petroleum, chemical and metallurgical industries. The pipe muffler can adapt to the harsh vibration environment, withstand the pulsating medium and impact load, and has a wider application range. The working temperature of all stainless steel impact resistant pressure gauge is - 25 ℃ ~ 70 ℃. Implementation standard: Q / 320211dgh01-2003, protection grade IP65.