Repair and maint of external water supply lines including pumping sets and allied items at Shillong Garrison

M&L for Decoupling pump from motor, taking out impellor, bush, bearing shaft, stuffing box, reassembling the same after replacing the defective parts & carrying out the necessary repair, remetalling, turning, polishing the pump shaft, replacement of steel studs and unserviceable nuts & bolt and testing complete all as directed for the following capacity of pump sets (Note replacing of ball bearing, impellor, stuffing box, etc shall be measured and paid for separately under respective item of schedule) (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

Material and labour for replacement of bronze impellor of existing size for the following capacity of centrifugal pump sets (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

Replacement of ball bearing of existing size suitable for the capacity of centrifugal pump sets :- (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

Material and labour for replacement of stainless steel shaft of pump set of following capacity. (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

Taking out old unserviceable stuffing box of pump and supply and fixing of stuffing box made of cast iron , along with Tee bolt, graphite gland packing etc complete all as directed for the following capacity of pumps :- (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

M&L for Decoupling pump & motor, opening the body of motor, taking out burnt/defective winding wire carefully without damaging the stator, cleaning the slot, rewinding the stator with super enameled copper winding wire of existing gauge along with insulating material, greasing varnishing the bearing including testing complete all as specified and as directed for the following capacity of motor :- (a) Above 20 HP and upto 30 HP

(b) Above 10 HP and upto 20 HP

(c) Above 5 HP and upto 10 HP

(d) ditto but pressure pumps of RO Plants

Material and labour for replacement of unserviceable pump/motor coupling of any size or shape with shaft bore of capacity 25 to 30 HP centrifugal pump set

Material and labour for replacement of unserviceable pump/motor coupling of any size or shape with shaft bore of capacity 7.5 to 15 HP centrifugal pump set

M & L for replacement of old/unserviceable foot valve with brass foot valve of size 100 mm dia confirming to IS-4038

-ditto- but of size 80 mm bore

Material and labour for taking out submersible pump set from bore well with the help of chain pulley and tripod , rewinding of burnt out motor with super quality copper winding wire of required gauge insulation with insulating material, drying, varnishing etc, replacement of bushes and re-assembling with pump, lowering in the same bore well and testing complete all as specified and directed for submersible pump set 10 HP/20 HP complete.

M & L for Opening and dismantling of existing old filter media of various sizes , unserviceable strainers, packings and nuts/bolts/washers etc of IRPs and deposited to place where directed including cleaning the surfaces of IRP and all accessories with emery paper, preparing the surfaces and painting with two coats of synthetic enamel paint over a coat of red oxide primer on outer surfaces and two coat of black bituminous paint on inner surfaces and connecting pipes as per colour codes and filling fresh filter media with replacement of unserviceable parts ect all as specified and directed for following locations. (Note : Replacing of filter media, valves, stainers and guages shall be measured and paid for separately under respective item of schedule) (a) ARSU, Demsiniong - 01 Nos (b) Old DGAR Complex - 01 No (c) ARASU, Happy Valley - 01 No (d) Laitkor Garrison - 02 Nos

supply and filling of treated barakar sand of 16/32 mm size complete all as specified and directed

supply and filling of Gravel of size 1", 3/4", 1/2", 3/8", 1/4", 1/8" complete all as specified and directed

Supply and replacement of plastic strainer of approved quality and size as existing all as specified and directed

Material and labour for replacement of existing MNO2 from oxidation chamber with new MNO2 lumps to be used as oxidizing agent complete all as specified and directed

Supply and fix diaphragm valves cast iron angular type of size 80 mm dia complete all as specified and directed

Supply and fix butterfly valve wafer type cast iron (as per IS:13095) of size 80 mm dia complete all as specified and directed

Supply and fix water pressure gauge duly calibrated of existing size complete all as specified and directed.

Supply and fix gun metal gate valves/globe valves with CI wheel of approved quality for iron pipes and fixed of size 25 mm dia complete all as specified and directed

Material and labour for painting steel work with delux multi surface paint of required shade for PS tank 20000 ltrs capacity. Two or more coat applied @0.90 ltr/10 sqm over and under coat of primer applied @0.80 ltr/10 sqm of approved brand of manufacture.

S&F inreplacement of Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings This includes jointing of pipes & fittings with one step CPVC solvent cement ,trenching ,refilling & testing of joints complete for following sizes all as specified and directed (a) 50 mm nominal outer dia Pipes

(b) 40 mm nominal outer dia Pipes

(c) 25 mm nominal outer dia Pipes

Proviving and fixing gun metal gate valve with CI wheel of appoved quality. (a) 25 mm nominal bore

(b) 40 mm nominal bore

(c) 50 mm nominal bore

(d) 65 mm nominal bore

(e) 80 mm nominal bore

Proviving and fixing brass stop cock of 20 mm nominal bore complete all as specified and dircted

Supply & fix in replacement of RO membraine suitable for 2.0 Cum/Hr capacity, Spiral type, MOC - Celluluse Polyamide, filteration grade - 90-98% salt rejection, Make/Model : Toray Japan/8040 including connected accessories complete all as specified.

Supply & fix in replacement of RO membraine suitable for 1.5 Cum/Hr capacity, Spiral type, MOC - Celluluse Polyamide, filteration grade - 90-98% salt rejection, Make/Model : Toray Japan/4040 including connected accessories complete all as specified.

Supply & fix in replacement of Micron cartridge filter 1.4" dia & 20" long suitable for RO plant of capacity 2.0 Cum/hr as per existing make complete all as specified.

Supply and fix CI Sluice valve with CI wheel of approved quality for iron pipes and fixed of size 80 mm dia complete all as specified and directed

Supply and fix CI Sluice valve with CI wheel of approved quality for iron pipes and fixed of size 100 mm dia complete all as specified and directed

Supply and fix CI Sluice valve with CI wheel of approved quality for iron pipes and fixed of size 150 mm dia complete all as specified and directed

S A Enterprise

Shekhar Trading Co.

U K ENTERPRISE

Lalaram Gupta & sons