Bellows pressure gauge specifications and working principle

Bellows pressure gauge, might as well be called the micro pressure table, it is the working principle of bellows sensitive element connected by two pieces of circular waves of diaphragm. Micro pressure table work is measuring the pressure of medium role in the bellows cavity inside, deformation caused by the medium can be used to measure the pressure, pressure value by the pointer to the size of the display. Model: LPTK221 types: bellows pressure gauge structure: radial type; With black rubber tube; With clamp; Cover circle: no material: brass tooth head: with 1/8 & throughout; Other optional NPT copper joint surface diameter: 63 mm shells: black iron shell base: brass other optional pressure range: 0 - 35 inh2o& OZ/IN2( Can be customized) Accuracy: and 3 - 2 - 3% table: PC other optional protection grade: IP54 ( Dustproof, moisture proof, waterproof) Bellows pressure gauge measuring range: ( Unit: kpa) 0 ~ 2. 5; 0 ~ 4; 0 ~ 6; 0 ~ 10; 0 ~ 16; 0 ~ 25; 0 ~ 40; 0 ~ 60; - 2. 5 to 0; - 4 to 0; - 6 ~ 0; - 10 ~ 0; - 16 ~ 0; - 25 ~ 0; - 40 ~ 0; - 2 ~ 2; - 3 ~ 3; - - - - - - 5 ~ 5; - - - - - - 8 ~ 8; - - - - - - 12 ~ 12; - - - - - - 20 ~ 20 - 30 ~ 30 bellows pressure gauge measuring corrode the copper alloy, no explosion danger, the micro pressure and negative pressure of the gas is widely used in boiler ventilation, gas pipeline, burning device and other similar devices. Bellows pressure gauge measuring range in - 80 ~ 60000 pa, but according to the different pressure range choose different bellows pressure gauge, pressure in - 1000 pa ~ 60000 pa advice when choosing disc type bellows pressure gauge, if the pressure in the - 80 pa advice when choosing the rectangular bellows pressure gauge.