NIT No.8 EE(SDW)-IV 2022-23 Item No.-1

Repairing/Servicing/ Overhauling of Upadhaya Make sluice valve of size 350 mm dia (1 No.) for suction side for pump set no. 1 at Dallupura SPS by carrying out the following workSafety equipments & Scaffolding equipments have to be arranged for the workers as the work has to be done upto the height of Sluice Valve from the ground level. 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 lifting & manual labor 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.

Repairing of side grooves of the sluice valve body and side ribs of wedge form smooth functioning of wedge in up and down movement.

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

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

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 yoke with the help of lifting arrangement & manual labour 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.

Repairing/Servicing/ Overhauling of Upadhaya Make sluice valve of size 300 mm dia (1 No.) for Delivery side for pump set no. 6 at Dallupura SPS by carrying out the following work.Safety equipments & Scaffolding equipments have to be arranged for the workers as the work has to be done upto the height of Sluice Valve from the ground level. 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 lifting & manual labor 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 form top by providing & fixing of blank flange on the top of sluice valve.

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

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 yoke with the help of lifting arrangement & manual labour 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.

Repairing/Servicing/ Overhauling of Upadhaya Make Non return Valves of size 350 mm dia of pump set no. 3 (1No.)at Dallupura SPS by carrying out the following works:-Safety equipments & Scaffolding equipments have to be arranged for the workers as the work has to be done upto the height Non Return Valve from the ground level. The same includes loading, unloading & cartage charges etc.

Cutting and opening of all nut bolts of N.R.V body cover plate.Lifting of body cover with the help of Tri pod chain block arrangement & manual labour arrangement to take it to safer place.

Taking out complete Disc with disc arm & Shaft from the N.R.V body by lifting with the help of Tri pod chain block arrangement & manual labour arrangement. Cleaning of body seat ring of N.R.V 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.

Renovation of NRV disc with arms by fixing of new bushes in the bore as per the size of NRV shaft. The job includes removing of worn out seat & making of proper size & machining of new bushes as per the required size and fixing the same for smooth functioning

Repairing of both Arms by remetling & frinding of bushes size & machining of bushes as per the required size for smooth functioning.

Fixing of complete disc with arm, shaft in N.R.V 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 ofnut bolts with spanner etc. as required by job.

Repairing/Servicing/ Overhauling of Upadhaya Make Non return Valves of size 300 mm dia of pump set no 1& 6 (2 Nos.) at Dallupura SPS by carrying out the following works:-Safety equipments & Scaffolding equipments have to be arranged for the workers as the work has to be done upto the height Non Return Valve from the ground level. The same includes loading, unloading & cartage charges etc.

Cutting and opening of all nut bolts of N.R.V body cover plate.Lifting of body cover with the help of Tri pod chain block arrangement & manual labour arrangement to take it to safer place.

Taking out complete Disc with disc arm & Shaft from the N.R.V body by lifting with the help of Tri pod chain block arrangement & manual labour arrangement. Cleaning of body seat ring of N.R.V 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 dice by remetling of bushes & making fo proper size & machining of bushes as per the required size for smooth functioning.

Repairing of both Arms by remetling & frinding of bushes size & machining of bushes as per the required size for smooth functioning.

Fixing of complete disc with arm, shaft in N.R.V 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 sire and their handling etc.

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