How are Pressure Gauges classified?

Pressure gauges can be divided into ordinary type, electric contact type, remote transmission type, shock-resistant type, diaphragm type, corrosion-resistant type, explosion-proof type, differential pressure gauge, micro pressure gauge, vacuum pressure gauge, etc.

From the nominal diameter, there are Φ20mmΦ30mm, Φ40mm, Φ50mm, Φ60mm, Φ75mm, Φ100mm, Φ150mm, Φ200mm, Φ250mm and so on.

According to its measurement accuracy, it can be divided into precision pressure gauge and general pressure gauge. The measurement accuracy grades of precision pressure gauges are 0.1, 0.16, 0.25, 0.4 and 0.05 respectively; the measurement accuracy grades of general pressure gauges are 1.0, 1.6, 2.5 and 4.0 respectively.

The pressure gauge is based on its measurement benchmark: the pressure gauge is based on its indicated pressure benchmark, and the pressure gauge is divided into a general pressure gauge, an absolute pressure gauge, a stainless steel pressure gauge, and a differential pressure gauge. The general pressure gauge is based on atmospheric pressure; the absolute pressure gauge is based on the absolute pressure zero position; the differential pressure gauge measures the difference between the two measured pressures.

The pressure gauge is divided into vacuum gauge, pressure vacuum gauge, micro pressure gauge, low-pressure gauge, medium pressure gauge and high-pressure gauge according to its measuring range. Vacuum gauges are used to measure pressure values ​​less than atmospheric pressure; pressure vacuum gauges are used to measure pressure values ​​less than and greater than atmospheric pressure; micro pressure gauges are used to measure pressure values ​​less than 60000 Pa; low-pressure gauges are used to measure pressure values ​​of 0~6MPa; The medium pressure gauge is used to measure the pressure value of 10~60MPa;

The pressure gauge is divided into a pointer pressure gauge and a digital pressure gauge according to its display mode.

Pressure gauges are divided according to their use functions: pressure gauges can be divided into local indicating pressure gauges and live signal control pressure gauges according to their different functions.

The use of the pressure gauge: can be divided into ordinary pressure gauge, ammonia pressure gauge, oxygen pressure gauge, electric contact pressure gauge, remote pressure gauge, vibration-resistant pressure gauge, pressure gauge with inspection pointer, double-needle double tube or double needle single Tube pressure gauge, digital pressure gauge, digital precision pressure gauge, etc.

Pressure gauges can be divided into:

1. General pressure gauge: The general pressure gauge is used to measure the pressure of liquid, gas or steam that does not explode, crystallize, or solidify and has no corrosive effect on copper and copper alloys;

2. Corrosion-resistant pressure gauges: Corrosion-resistant pressure gauges are used to measure the pressure of corrosive media, commonly used stainless steel pressure gauges, diaphragm pressure gauges, etc.;

3. Explosion-proof pressure gauges: Explosion-proof pressure gauges are used in hazardous places with explosive mixtures in the environment, such as explosion-proof electrical contact pressure gauges, explosion-proof transmitters, etc.

4. Special pressure gauge.

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