NIT NO.27, ITEM NO.05 (2021-22)WW-II

Closing of filter bed by providing gunny bags to stop the leakage, Disconnection of power supply and removing of control cable and electrical actuator from the top of drain valve with all safety measures as per site requirement.

Dismantling of mounting arrangement of actuator & upper dome of drain valve 600 mm dia by cutting of rusted nut bolts with the help of gas cutter/welding machine and removing with the help of tri pod/chain pulley block and heavy manual labour with all safety measures and shifting to safer side as per direction of concern engineer in charge.

Removing of spindle and CI flap from the housing of drain valve from its position with the help of tripod/chain pulley block and heavy manual labour with all necessary safety precaution and as per site condition.

Repairing of Dome of drain valve to hold the spindle in straight position and mounting accessories of electrical actuator to ease in operation with proper machining/alteration for fixing of electrical actuator as required.

Making and supply of SS 316 spindle 50 mm dia approx for smooth operation of Drain valve of filter bed as required.

Making and supply of GM nut for drain valve 600 mm dia with proper machining, threading and required shape strictly.

Providing and fixing of thrust bearing 51212 for smooth operation of drain valve.

Providing and fixing of Nut and Bolts off size.

Scrubbing of drain valve housing with the help of grinder and emery paper to remove cavities inside as required.

Providing and fixing of Neoprene rubber sheet 1.5 mm thick to seal the leakage from the drain valve.

Transportation charges, loading and unloading of drain valve accessories with all safety measures at site to workshop and return back.

Repairing/fabrication of GM ring of drain valve housing 600 mm dia as required to cease the leakage of water.

Fabrication and fixing of GM ring of CI flap drain valve 600 mm dia as required to cease the leakage of water. This includes the cost of material and removing of damaged GM ring from the CI flap.

Arrangement of all safety items like safety helmets, gum boots and gloves etc as required.

Re- fixing of drain valve with all items like housing, nut bolt, rubber packing, MS bend, dome, spindle, GM nut, electrical actuator etc as required.

Painting of Drain valve by providing of enamel paint and primer two or more coat as per direction of engineer in charge.

Making connection of electrical actuators and testing of drain valve as required.

Jal Dhara Engineers India