Description: standard orifice plate is an important device throttle valve orifice element throttling device or ring orifice throttling devices, it pneumatic, electric or dual bellows differential pressure transmitter differential pressure transmitter supporting use. In the continuous measurement of pressure medium temperature ≤400 ℃ liquid, gas and steam flow through the orifice plate produced by oil, gas, chemical and electric power, metallurgy industry system, the pressure transmitter product range by describing the characteristics and applicable: Standard hole board is an important device throttling element valve orifice plate throttling device or ring throttling devices, it pneumatic, electric or dual bellows differential pressure transmitter supporting the use of differential pressure transmitter. In the oil, gas, chemical power, metallurgy industry systems continuously measure the pressure medium temperature ≤400 ℃ liquid, gas, steam flow through the orifice plate produced by the differential pressure transmitter signal into an output signal proportional, then by the secondary instrument or regulator, to be measured flow records, direction or regulation. Using standard: SY / standard orifice plate measurement methods JJG640 T 6143 gas flow differential pressure flowmeter GB / T21446 standard orifice meter gas flow measurement Medium: sour gas (H S + CO = 8%), 2 2 purge gas, gas, light oil, and other light hydrocarbons. Medium temperature: -29 ° ~ 120 ° Material: 1Cr18Ni9Ti stainless steel (or according to another set of special media) Note: The standard orifice plate inside diameter d20 value can be calculated according to the flow parameters provided by the customer