tender for procurement of carb clad / tribo sol coated rotary segregating valve complete assembly for ahp, stage -ii (2x660 mw), units 3&4, sstpp, mppgcl, dongalia, distt. khandwa (m.p). (as per the attached tender schedule) , carb clad /tribo sol coated rotary segregating valve assembly 200 nb technical specification specification for carb clad /tribo sol coated rotary segregating valve assembly is: material specification should be as per specification mentioned in carb clad /tribo sol coated rotary segregating valve assembly drawing. note: no components with casting manufacturing process should be used. valve gate/disk base material - stainless steel grade 400 series (ss 410/420/430/440 etc). micro - hardness of the carb clad /tribo sol coated surface on disk should be minimum 1400 hv. the sealing area on the disk should have a surface finish maximum 3.0 ra. valve seat base material - steel grade astm a36, is 2062 grade or equivalent. micro -hardness of the carb clad /tribo sol coated surface should be minimum 1400 hv. the sealing area on the seat should be have a surface finish of maximum 3.0 ra. gate resting plate base material - steel grade astm a36, is 2062 grade or equivalent. micro -hardness of the carb clad /tribo sol coated surface should be minimum 650 hv. the sealing area on the seat should have a surface finish of maximum 0.5 ra, 1 nos. = 1 set.