Check - pneumatic diaphragm regulating pneumatic valve Enforcement agencies to check

, film chamber sealing check when the adjusting range of pneumatic valve nameplate signal pressure. Will ~ kg/cm. Kg/cm pressure of compressed air into the film chamber, cut off the gas source, the last minute, thin film gas indoor pressure drop should not exceed. kg/cm( mmHg。 , to help with stroke (1) kg/cm with range of signal input film air chamber pressure, reciprocating increase and decrease pressure signal, the push rod movement should be uniform flexible no binding beat phenomenon. (2) adjust the compression spring pressure, for the signal pressure. Push rod starting when kg/cm ( And unit combination instrument with the start signal for the pressure. kg/cm） 。 (3). ~。 Kg/cm pressure range increases and reduces pressure signal, the push rod stroke should satisfy the maximum stroke regulating pneumatic valve.