Low Pressure Gauge 50mm 0/15 PSI 0/1 Bar

Pressure is pressure physics, the pressures on the unit that is the size. The atmospheric pressure as the benchmark for measuring smaller or larger than the atmospheric pressure of the instrument, as well as for the measurement of fluid (gas, liquid) pressure instrument called the gauge.

Type Selection

    Instrument type selection must meet the technical requirements of production. Such as the need for remote transmission, automatic recording or alarm; side is the nature of the medium (such as the temperature of the measured medium height, size viscosity, corrosion, dirt level, whether explosive, etc.) whether the instrument specific requirements, site environmental conditions (such as humidity, temperature, magnetic field strength, vibration, etc.) on the instrument type requirements. Therefore, correctly selected according to the requirements of the process is to ensure the meter type instrument work and production safety an important prerequisite.

Such as a conventional multi-tube manometer spring copper alloy (high-pressure alloy steel), while the ammonia pressure gauge Bourdon tube material but had made of carbon steel (or stainless steel), does not allow the use of a copper alloy. Because the chemical reaction of ammonia with copper, explode, so the ordinary ammonia pressure gauge pressure measurement can not be used.

Oxygen pressure gauge and pressure gauge can be exactly the same as in the general structure and material terms, but must be no oil pressure gauge with oxygen. Because the oil into the oxygen system is easy to cause an explosion. The oxygen pressure gauge at the check, not as the use of oil as a working medium like an ordinary pressure gauge, pressure gauge and oxygen in storage should strictly avoid contact with oil. If you must use oxygen pressure gauge measurements with conventional oil before use must be washed repeatedly with carbon tetrachloride, check carefully until no oil so far.

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