supply of set of ball valves suitable for bhel , set of ball valves suitable for bhel make traction converters. set consists of 2 items as follo ws. (i) 2 way ball valve with astm a351 gr. cf8 (ss304) investment cast body with ss304 ball, stem, glan d, ptfe seats and seals and cs handle flange drilling as per ansi b16.5 std full bore class 150# single pc d esign. size/thread:25nb(1 inch).---10 nos./set. (ii) 3 way astm a351 gr. cf8 investment cast ball valve wit h ss304 t port ball, stem gland, ss304 nuts, ptfe seats and seals, cs handle, flange drilling as per ansi b1 6.5 std. with third side screwed end bsp thread. 2 seat single pc design class 150#hex plug in ss304 will b e provided for iii side with buna- n o ring ss304 extended pipe of length 135mm excluding male thread l ength and class 150# flange duly fitted to valve shall be provided. ss304 fasteners shall be used for valve fitting. size/thread:25nb(1 inch).---10 nos./set. make: kavaata valves or 2l engineers or equivalent. [ warr anty period: 30 months after the date of delivery ] ]