... , fast to measure.7. l Small pressure loss, only about 1/2P of Standard Hole Board.8. l ... transducer technology and modern digital technology. This product not only features the characteristic of no movable part as in ... % , fast to measure.7,Small pressure loss, only about 1/2P of Standard Hole Board.8,Able ... 1~0.08% and fast measurementSmall pressure loss,only about 1/2ΔP of standard orifice.Explosion- ...