Open Tender for SET OF PURGE-O-MAT AUTOMATIC FLOAT AIR VENT VALVE AND VACUUM VALVE FOR ROOF WATER TANK 30L MOUNTING FOR LHB COACHES. 1) PURG-O-MAT AUTOMATIC FLOAT AIR VENT VALVE WITH SHUT-OFF VALVE HAVING THREAD BSP 3/8 INCH TO RCF DRG. No. LW63150, ITEM-4, ALT-e, QTY/SET: 1No. 2) VACUUM VALVE G-1/2 INCH TO RCF DRG. No. LW63150, ITEM- 3, ALT.e, QTY/SET: 2 Nos NOTE:(1) AS PER DRAWING AIR VENT VALVE AND SHUT-OFF-VALVE MUST BE PROCURED FROM M/S HANS H. VOSS TULPENWEG OR M/S CALEFI OR M/S WATTS INDUSTRIES ITALY. (2) ONE ADVANCE SAMPLE TO BE GOT APPROVED BY THE CONSIGNEE FOR FUNCTIONAL REQUIREMENTS BEFORE BULK SUPPLY. in Telangana