REPAIR, MAINTENANCE AND REPLACEMENT OF UNSERVICEABLE BLOWERS, CONDENSING UNITS, WATER SEPERATOR UNITS, COPPER TUBES, CONTROL PANELS, RELAYS, SENSORS AND OTHER CONNECTED ACCESSORIES OF WSA AREA AT AF STN DIGARU.

Amount

Taking down old unservicable following cap CI balancing valves and supply and fix same cap CI balancing valve, PN 1.0 pnematic with both sides flanges and gaskets complete all as specified and directed.

32 mm dia

50 mm dia

Supply and fix in replacement of 3 phase multifuction digital meter compatible to measure current,voltage,power factor & frequency with 3 lines LCD display in 96 x 96 sqmm flush mounted case,accuracy class 1.0 for panel complete all as specified and directed.

Supply and replacing oil tight limit switch Model No. TLS-100-0 complete all as specified and directed.

Supply and replacing electronic timer for star delta starters range 30-120 sec complete all as specified and directed.

Supply and replacing Red/Green push button unit with element complete all as specified and directed.

Supply and replacing low level cut out safety switch type EELC -1 complete all as specified and directed.

Supply and replacement of water flow switch with stem type sensing element probe model WFS 6000, 150 psi, 15 Amps, 250 volts (Make- Honeywell) and testing for proper working complete all as specified and directed.

Supply and replacing single phase preventor type VSP – 1 complete all as specified and directed.

Supply and replacement of non spring return 3 way valve of 25 mm dia having fixing arrangement of actuator as per existing make and model,incl testing for proper working complete all as specified and directed.

Supply and repacing pre filters type EU4/G4 suitable for air handling unit,box type with aluminium extruded section frame and body of following size below and efficiency 90% down to 10 micron particle size complete all as directed. Make - Micron filter/Thermodyne/Athlete etc.

610 mm x 610 mm x 50 mm

610mm x 305 mm x 50 mm

305 mm x 305 mm x 50 mm

Material and Labour for carrying out the chemical servicing of the Air Handling units & cooling colis by applying the non-aciditic scale removing agent to the fins area of the cooling coil, copper tubes, removing the complete scale deposit across the coil, flushing through and complete blowing out the dirt, cleaning the fan implellers, filter section,fan section and complete cleaning of filters, tightening of all bolts & nuts, renew the rusted bolts & nuts checking the alignment of the drive set and testing & commissioning the Air handling units of AC plant complete all as directed by Engr-in-Charge.

10000 CFM AHU,25 TR

8500 CFM AHU,21 TR

1200 CFM AHU,3 TR

Servicing and maintenance of Emrald Make cap 45 KW Hot water generator (total - 4 Nos) complete by opening the existing assy and draining out complete water cleaning the container checking of serviceability of heating element,pressure gauge etc. and reassembling the same and testing complete all as specified and directed.

Supply and fix in repair immersion type water heater assy of cap 15 KW suitable for Emrald make hot water generator complete all as per existing model and make complete all as specified and directed.

Supply and repacing duct heater assembly of cap 2 KW suitable for Escorts make Duct air heater complete all as per existing and all as directed.

Taking down old unservicable following capacity CI butterfly valve and supply and fix same capacity CI butterfly valve, PN 1.0 pneumatic double acting actuator with both sides flanges and gaskets complete all as specified and directed.

150 mm dia

100 mm dia

80 mm dia

65 mm dia

50 mm dia

40 mm dia

32 mm dia

25 mm dia

Removing unservicable, corroded MS ERW pipe of below capacity and supply and fix same capacity MS pipe ( heavy grade) with necessary fittings like elbow,flanges,bolts,nut including supports complete as in water pipe lines including testing and commissioning complete all as specified and directed.

150 mm dia

100 mm dia

80 mm dia

65 mm dia

50 mm dia

40 mm dia

32 mm dia

25 mm dia

M&L for carryout the thermal insulation with 50 mm thick high density industrial quality EP sheet,fixing to the duct with 80/40 grade industrial quality bitumen,covering with tar coated hassain cloth vapour barrier with polyethelene sheet,sealing with 25 mm thick CM (1:4) plastering with using water proof compound and applying 2 coats of waether proof paint over a coat of primer and sealing the joints between the duct and wall at both ends in AHU room and AC magazine complete all as directed by Engr-in-Charge.

50 mm dia

40 mm dia

32 mm dia

25 mm dia

80 mm dia

100 mm dia

M&L for carryout the thermal insulation with 19 mm thick high density industrial quality nitril rubber insulation,class O fixing to the duct with adhesive,covering with aluminium foil face,joint sealing with 50 mm thick complete all as directed by Engr-in-Charge.

Supply and fixing of cooling tower PVC fins honeycomp design, 600x300x150 mm(1CFT) made of corrugated virging quality PVc film duly vaccum formed and edge folded for extended service life all as specified and directed by Engr-in-Charge.

M & L for carryout Duct cleaning with proper cleaning of ducts with vaccume cleaner inside through opening duct grills and re fixing the same after cleaning of ducts.

M/s Ravi Enterprise

M/s Capital Traders