NIT No. 10 (22-23) Item No. 1

Part-A:- 300 mm dia. Sluice Valve of Pump Set No.1 & 3. Safety equipments have to be arranged for the workers as the work has to be done in the sewage pump house. The same includes loading, unloading & cartage charges etc.

Removing of wheel along with complete gear box from the sluice valve stem, Opening/cutting of all nut bolts/studs of upper dome (Bonnet) of sluice valve body, Yoke and Gland Plate bolts.

Lifting of bonnet with the help of HOT/EOT Crane & manual labour arrangement to take it to safer place in the pump house as per site requirement.

Taking out complete wedge from the Sluice Valve body by lifting with the help of Tripod chain block arrangement. Cleaning of body seat rings of Sluice Valve from inside by chemical solution and polishing by manual arrangement. Cleaning of Sluice Valve wedge facing rings by chemical solution, emery paper etc. and polishing as required.

Closing of sluice valve from top by providing & fixing of blank flange on the top of sluice valve.

Cleaning and repairing of GM nut threads by matching with SS spindle threads for smooth movement of spindle on load.

Renovation and repairing of GM Nut seat by remetalling and grinding the same as per the proper size of GM Nut.

Supply of Operating Wheel (CI IS:210 Gr Fg 200)

Supply of T Bolts. (C.S)

Supply of Gasket for bonnet (Rubber IS:636 Type-B)

Supply of Gasket Gland top (Rubber IS:636 Type-B)

Supply of Gland packing.

Supply of nut bolts.

Fixing of complete wedge in Sluice valve body with proper matching of both the seat rings of body & wedge rings, fixing of wedge nut along with stem, fixing of bonnet after replacing of gasket & damaged nut bolts/studs, fixing of stuffing box with the help of lifting arrangement of HOT Crane etc & tightening of nut bolts with spanner, fixing of Gland packing and Gland Plate etc. with the help of manual labour arrangement etc. as required by job.

Overhauling of complete gear box of the sluice valve including cleaning, greasing and fixing the same on the sluice valve and taking trial run of sluice valve as required by deptt.

Transportation charges to & fro for T&P items , men & material at site & their handling etc.

Part-B:- 300 dia. NRV of Pump Set No.1. Safety equipments & scaffolding equipments have to be arranged for the workers as the work has to be done upto height of Non Return Valve from the ground level. The same includes loading, unloading & cartage charges etc.

Cutting and opening of all nut bolts of NRV body cover plate. Lifting of body cover with the help of Tripod chain block arrangement & manual labour arrangement to take it to safer place.

Taking out complete Disc with disc arm & shaft from the NRV body by lifting with the help of Tripod chain block arrangement & manual labour arrangement cleaning of body seat ring of NRV from inside by chemical solution and polishing by manual arrangement, cleaning of disc retaining seat ring by chemical solution, emery paper etc. and polishing as required.

Supply of hinge pin, (SS 410)

Supply of cover bolts & seat (IS : 1367 Class 4.6/4.0)

Supply of Gas kit. (Rubber IS : 638 Type-B)

Supply of hinge pin lock Nuts.

Supply of cover plug.

Repairing of NRV disc by remetling of bushes & making of proper size machining of bushes as per the required size from smooth functioning.

Fixing of complete disc with arm, shaft in NRV body by proper matching of both the seat rings of body & disc, fixing of body cover with the help of manual labour arrangement etc after replacing of rubber gasket & damaged nut bolts & tightening of nut bolts with spanner etc. as required by job.

Transportation charges to & fro for T&P items, men & material at site & their binding etc.

B.S.Enterprises