Vacuum pressure gauge is used to measure the pressure or negative pressure of non-crystallizing, non-solidifying liquid, gas or steam medium which has no corrosive effect on steel, copper and copper alloy and no explosion risk. Shockproof vacuum pressure gauge is used to measure the negative pressure of non-corrosive and non-crystallizing media under vibration and pressure fluctuation. Electric contact pressure vacuum meter and electric contact vacuum meter are used to measure (pressure) and negative pressure of medium (pressure) such as noncrystalline and non-solidified liquid and gas, which have no corrosive effect on copper and copper alloy, and no explosion risk. When the pressure reaches the predetermined value, the control circuit can be connected or disconnected with the help of contact device, and the electric signal can be sent out at the same time.

Classification of vacuum pressure gauges:

Vacuum pressure gauge is the atmospheric pressure as the reference, used to measure more than and less than the atmospheric pressure of the instrument.

Shockproof vacuum pressure gauges are a classification of shockproof pressure gauges for measuring the negative pressure of non-corrosive, non-crystallizing media in the case of vibration and pressure fluctuations.

Electric contact vacuum pressure gauge and electric contact vacuum gauge copper and copper alloy without corrosion, without explosion risk, amorphous, non-solidifying liquid, gas and other media (pressure) and negative pressure.

Stainless steel pressure vacuum gauge is used to measure the pressure and negative pressure of liquid and gas medium without corrosion effect on stainless steel 316,316 L and 0Crl8Ni12MO2Ti. All stainless steel has stronger corrosion resistance to environment.

The acid-proof pressure vacuum meter is used to measure the pressure and negative pressure of nitric acid and alkali liquid medium. The acid resistance vacuum meter is used to measure the negative pressure of nitric acid and alkali liquids.