CASE STUDY AT ESSAR REFINERY – JAMNAGAR
After the visit to cooling plant and the 3 way control valve
of FOUR’ S we had found that you had used pump valve discharge valve with
ebonite lining . In this regard we proposes and recommend you to use two set of
valve one Dual Plate Check valve (i.e NRV) with ASTM 439 GR. D2 Body casting
& Duplex 4 A Plates and internals which are dually suitable for sea water application
and the other one is Triple Eccentric Butterfly Valve with similar
Material of Construction i.e Duplex 4A.We have supplied similar valves to your
refinery in initial years when ABB LUUMMUS were setting up your refinery. These
configuration of valves and material of construction is useful to avoid any
damage to any stage for sea water application.
As we have noticed that Your velocity ie. 3.49m/s for
flow rate of 8000m3/hr. in the discharge line which still being on higher
side due to which all kind of lining are susceptible to failure and
breakdown.
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