tender for supply, installation and commissioning work for complete conversions of vacuum brake system into air brake system of 06 nos. bgh wagon at atps, mppgcl, chachai. , air brakes equipments (slack adjuster/brake regulator type -irsa-600 and irsa-750, brake rod set) , pipe & pipe fitings heavy duty as per rdso specifications:- 20mm nb and 32mm nb (complete fitting set including tee flange, branch pipe, lock nut, fixed flange, swivel flange, gasket, socket hex nut and bolt, spring washer. , cut off angle cock (32mm size on either end of bp) drg. no. wd-188123-s-01 (01 set = 2 nos.) , brake pipe air hose with coupling 32mm. , centrifugal dirt collector drg. no. wd-92051-s-03. , common pipe bracket with control reservoir. , distributor valve with adapter rdso specification no. 04-abr-02. , reservoir (auxilliary) 100 liter drg. no. wd-92051-s-01. , brake cylinder 355mm diameter drg. no. wd-92051-s-06. , isolating cock. , common pipe bracket for slack adjusterd and horizontal/vertical lever. , inter-related accessories like frame angle, frame patti, lock patti, u clamp (12 nos. each), nut and bolt, z type structure, roller for 20 and 32 pipe. , dismantling of all fittings, pipes clamps etc. related with vacuum brake system including cylinders, then shall be marked for fitments air pipe through brackets, all brake equipments along with brake cylinders including all components etc. make the system into operating condition with fitments.