naval dockyard, mumbai - Irfc-nausena.nic.in

E­20021 Remove, refit, overhaul and pressure test the
following:­
(a) Air bottle chest valve of air bottles (test
pressure 600 PSI).
(b) Two safety Valve (Set pressure 440 psi)
(b) Reducing valve (30 / 7 bar) ).
(c) Relief valve, Dia­ ½ inch, set limit­8 kg/cm2).
(d) Air stop valve/ air system valve (Mat­GM), dia
­½ inch).
(e) Renewal 02 inch dial pressure gauge (0 to 1000
PSI) with isolating valve. ).
E­20022 Renewal of following Sea water strainers (Mat­
Gun metal/Bronze) as per sample
(a) 100mm dia x 235 mm in length ).
(b) 70mm dia x 150 mm in length. ).
E­20023 Following system pipes to be removed, chemically
cleaned, repaired, pressure tested and fitted back
as per following dimension
{Dia (in mm) / Test Pressure}
(a) 05 in nos. main sea suction (MS Galv) pipes 80
dia / 4.5 Kg/Cm2. Approx Length.
(b) 05 in nos. M/E S/W suction (MS Galv) pipes/ 50
dia/ 4.5 Kg/Cm2.
(c) M/E F/W system MS pipe/ 50 dia/ 4.5 Kg/Cm2.
(d) M/E F/W system MS pipe/ 25 dia/ 4.5 Kg/Cm2.
(e) Fire main system MS pipes/ 50 dia/ 10.5kg/cm2
(f) GS/ Bilge S/W system MS pipes/50 dia/4.5
Kg/cm2.
02 Nos
02 Nos
01 No
02 Nos
05 Nos
02 Nos
02 Nos
04 Nos
05 mtr
05 mtr
06 mtr
08 mtr
14 mtr
10 mtr
DYT/INCOD/12­13/106(a)/PL­YCM/MADHUR­REFIT/420 40/127