Works on Valves at various locations on DCI DR XI

Amount

UNDER WATER VALVES: The following under water valves are to be overhauled as per Annexure-A, same to be removed from place, transport to work shop, seat impression of valves to be checked. Seats & lid to be skimmed if necessary. After overhaul valves to be pressure tested for no leak and shown to SS/IRS. Valves to be fitted in place with new gaskets & bolts and nuts.

Overhauling of Valves: Up to 80mm

Overhauling of Valves: 81 to 150mm

Overhauling of Valves: 151 to 250mm

Overhauling of Valves: 251 & above sizes

DLM two no transducer valves to be opened from place, overhauled, pressure tested and fitted back

Non return valve dia 80mm to be fitted in LO Seperator system (Valves HSL Supply)

FIRE LINE VALVES:

Fire hydrants to be replaced with new fire hydrants along with flanges (spare hydrants - ship supply), existing flanges to be cut and new flanges to be welded. Material like ss fansters, gaskets, ms flanges are procure and fitment, consumables, weldking, machining, grinding, works are in contractor scope, satisfactory operation to be showned to ship staff.

Leaky hydrants in deck and machinery spaces gland packing to be renewed, hydrants to be removed, overhauled, pressure tested and fitted back. Material like ss fastners, gaskets, gland packing/O-rings, glan bush, gland followers are procure and fitment, consumables, machining, grinding works are in contractor scope, satisfactory operation to be showned to ship staff.

Isolating valve and relief valve on the main deck to be overhauled, pressure tested and fitted back.

Valves connected to paint locker fire line on the main deck (near fwd store entrance) to be overhauled

Following storm valves are to be removed from the place, taken to workshop, valves are to be dismantled, overhauled, cleaned and is to be put up to IRS surveyor for inspection, on completion of surveyor's final inspection, valves are to be pressure tested and boxed back and fitted in place with new joint and bolts & nuts are required.

Overhauling of Storm Valves: Up to 125mm

Overhauling of Storm Valves: 126 to 250mm

Storm valve to be renewed (Valve ship supply):

Renewal of Storm Valves: Up to 125mm

Renewal of Storm Valves: 126 to 250mm

The storm valves are to be repaired as recommended by surveyor, such as

The valve seat to be skimmed

The valve flap to be rubberlined

The valve spindle is to be manufactured and replace the old spindle

Stub pipe renewal

Stub pipe to be chipped, cleaned, ultrasonically gauged and painted

SRI VENKATA SAI WORKS

SRI SAI KRISHNA WORKS

SON AND MOTHER ENGG ENTERPRISES

gk engineering works

VENKATESWARA ENGINEERING WORKS

avisan engineering enterprises

TRUST SERVICES