VALVE; MODIFIER: SAFETY AND RELIEF STEAM; MANUFACTURER NAME: SPIRAX SARCO; DESIGNATION CODE: 32517760; EQUIPMENT PART OF: INDUSTRIAL AIR ACCUMULATOR COMPRESSORS 21-22-23; ADDITIONAL CHARACTERISTICS: LIQUIDS OR GASES, CONVENTIONAL FULL LIFT TYPE, FULL NOZZLE, HIGH CAPACITY, CLOSED BONNET WITH LEVER, IN COMPLIANCE WITH EN ISO4126:2004 AND SEALING CLASS ACCORDING TO ASME / API STD 527-REVISION2002 / WITH CE SEAL – PRESSURE EQUIPMENT DIRECTIVE (PED) THE APPROVAL AUTHORITY AND NOTIFIED BODY ARE ROYAL AND SUN ALLIANCE, INCLUDES STANDARD PRESSURE SETTING CERTIFICATE (SET PRESSURE), OVERPRESSURE 5% (STEAM), 10% (LIQUIDS AND GASES) KD=0.71 (STEAM AND GASES), KD=0.52 (LIQUIDS), RELIEF DIFFERENTIAL 10% (STEAM AND GASES), 20% (LIQUIDS), MAXIMUM BACK PRESSURE 10%, BRONZE BODY, INTERNAL PARTS IN HARDENED STAINLESS STEEL (SEAT/DISC/STEM), PRESSURE CLASS PN25, OPERATING TEMPERATURE RANGE BETWEEN -90 TO 230 DEGREES C (METAL TO METAL VERSION), SPRING IN HIGH QUALITY CHROME-VANADIUM ALLOY STEEL, RANGE 12-14 BARG, INLET DN 2 INCH BY OUTLET DN 3 INCH, THREADED CONNECTION INLET AND OUTLET FEMALE ACCORDING TO ASME B1.20.1 NPT, MODEL SV615 AS 2 INCH X 3 INCH NPT 12.0 – 14.0 BARG UNSET