This standard specifies the product classification and parameters, technical requirements, test conditions and methods, inspection rules, marking, packaging and storage of KF series KFD differential pressure indicating regulator. This standard applies to KFD-11, KFD-22, KFD-33, KFD-44 (standard type), KFD-6□ (single flange type), KFD-7□ (double flange type) and KFD-8□ (High static pressure type) differential pressure indicating regulator.
JB/T 8904.1-1999 history
1999JB/T 8904.1-1999 KF series pneumatic field instruments model.KFD differential pressure indicating controllers