PDRV Series Wire Port Type Adjustable Differential Pressure Controller Features and Benefits Differential pressure control accuracy in 5% The pressure differential data of the products should be set in advance during production: P=12/15/20/40/60/100KPa Applicable Standards Face to face standard: ISO228 Pressure test standard: ISO5208 Technical Data Nominal Diameter:DN15~DN40 (1 2"~11 2") Nominal Pressure: PN16 Temperature Range: -5C~85C Suitable for: Water, ethylene glycol, non correction medium, etc.