BASIC NAME VALVE NAME MODIFIER RELIEF TYPE SELF OPERATED AUXILIARY DRIVE WITHOUT AUXILIARY DRIVE MATERIAL ALUMINUM BODY ALUMINUM CASTLE MATERIAL INTERNAL NITRILE RUBBER-NBR CONNECTION THREAD CONNECTION TYPE BSP ISO 7-1(ABNT NBR 6414) SEAT CAST ALUMINUM CONSTRUCTION DIN EN 12186/12279 INLET CONNECTION DIAMETER 1 ” OUTPUT CONNECTION DIAMETER 1 ” OPENING PRESSURE 1.4 BAR MAXIMUM OPERATING TEMPERATURE 60 DEGREES CELSIUS ADDITIONAL REQUIREMENTS SEE NOTE COMMERCIAL REFERENCE PIETRO FIORENTINI-VEHRKT00 NOTE: – MODEL: PIETRO FIORENTINI VS/AM 65 STANDARD – TR; – TR (HIGH PRESSURE): SPRING RANGE = 0.82 TO 2.3 BAR; – SPRING RANGE CODE: 644.70203; – THE VALVE MUST BE FACTORY CALIBRATED FOR A RELIEF PRESSURE OF 1.4 BAR.