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

10 kg/cm2. Total Qty 35 mtr
(n) 12 in nos. S/W system Cu Ni p0ipes/ 32 dia / 4.5
Kg / Cm2. Total Qty10 mtr
(p) 22 in nos. Air system MS pipes/ 20/10.5kg/cm2.
Total Qty 30 mtr
DEPT: QC(E) C. No
74
SHIP: FC MADHUR
NAVAL DOCKYARD, MUMBAI
QUALITY ASSURANCE PLAN
REV DATE: 23 May 12 FORM Q C E 0 7 4 R E 0 1 0
No:01
NO
JOB TITLE :REFIT
QAP No : QCE74 ­245 QAP DATE : 11­JUL­12 PAGE 15 OF22
Activity Description­ Remove the Pipes (328 Nos.
) from their location prior permission of ss. Manually
clean the pipes, subsequently chemical cleaning.
Post chemical cleaning the pipes to be offered for
opening inspection. On recommendation of QC rep
the pipes to be repaired by using original line
material. S/W system and Fire main system pipes
must be repaired/ renewed by MS (hot dip
galvanized) pipes. Pipes to be hydro pressure
tested at 1.5 times of working pressure of the
system. Post pressure testing all pipes to be
painted by oil paint as per systems color code.
Pipes to be fitted back in place by using new
Gaskets and Fasteners. Secure the pipes. The
system to be Leak tested.
E­20029 Defect Description­
The following Water valves to be removed,
Overhauled, Pressure tested and fitted back.{size
(In mm)/Test Pr (in Kg/Cm2).} Material­Gun Metal.
(a) Both main sea suction SDNR valve 80/ 3.5
kg/cm2 Qty 02
(b) Both main sea suction SDSL valve 80/ 3.5
kg/cm2 Qty 02
(c) Both sea chest air release SD valve 40/ 3.5
kg/cm2 Qty 02
(d) Both sea chest weed cleaning Air Valve 20/ 10.5
kg/cm2 Qty 02
(e) Both M/E S/W pump suction (N/R) Valve 50/ 3.5
1 ­ 3 3
DYT/INCOD/12­13/106(a)/PL­YCM/MADHUR­REFIT/420 98/127