bids are invited for 1 sr routines on oily water separator to be carried out. item730 1 nos 20012 oily water separator ( make - m / s suyash, model - sd-1 ) 2 sr1: automatic valve refit: dismantle and clean both recovered oil valves. refit / renew components as necessary, paying particular attention to operating and line diaphragms. item731 1 nos 20012.01 oily water separator ( make - m / s suyash, model - sd-1 ) 3 sr3: coalescer seal inspection: check condition of dowty seals on coalescer element. renew seal if damage is evident. item732 1 nos 20012.02 oily water separator ( make - m / s suyash, model - sd-1 ) 4 drain both vessels. dismantle, clean and examinecentral compartments item733 1 nos 20012.03 oily water separator ( make - m / s suyash, model - sd-1 ) 5 valve refit: refit and reset releif valve item734 1 nos 20012.03 oily water separator ( make - m / s suyash, model - sd-1 ) 6 overhaul all valves on the system item735 6 nos 20012.04 oily water separator ( make - m / s suyash, model - sd-1 )