... SQU- ARE/ROUND PENSTOCK, AIR REL- EASING VAL VALVE TYPE: BUTTERFLY VALVE,GATE VALVE, CHECK VALVE,SQU-ARE/ROUND PENSTOCK, AIR ... REL-EASING VALVE, GLOBE VALVE, FOOT VALVE, "Y"TYPE STRAINER,ETC.NOMINAL PRESSURE: PN10-PN80CLASS 150-CLASS1500NOMINAL DIAMETER: DN50 ... , CAST STEEL, ST-AINLESS STEEL. BRASSSEALING TYPE: NON-METAL TO METAL, METAL TO METALDRIVING TYPE: MANUAL, PNEUM-ATIC, ELECTRICSTANDARD: BS, ...