procurement of thermodynamic steam trap with inbuilt strainer and filter for fd and pa fans installed at boiler of 1 x 500mw unit at sgtps mppgcl birsinghpur , as per tender schedule , thermodynamic steam trap size ( 15mm ) with inbuilt strainer ( material of construction:- a743 gr ca40 , end connection:- sw , maximum operating pressure:- 55 bar , maximum operating temperature:- 425 deg . c ) , thermodynamic steam trap size ( 25mm ) with inbuilt strainer ( material of construction:- a743 gr ca40 , end connection:- sw , maximum operating pressure:- 55 bar , maximum operating temperature:- 425 deg . c ) , inverted bucket steam trap size ( 40mm ) with inbulit strainer ( material of construction:- astm a216gr . wcb with bucket assy of ss aisi304 with cs reinforced ring with ss internals . maximum operating pressure:- 55 bar & temp . 425 deg . c , end connection sw ) , gate valve for scaph line size 40nb , class 800 , end connection sw , hand wheel operated , ms plain washer ( od 100mm x id 10mm x thick 3mm ) , oil filter element ( simplex , 60 microns/ss mesh ) for 175 lpm lube oil system of fd fan ( ap1-26/16 ) , oil strainer element ( simplex , 149 microns/ss mesh ) for 175 lpm lube oil system of fd fan ( ap1-26/16 ) , oil filter element ( simplex , 60 microns/ss mesh ) for 80 lpm lube oil system of pa fan ( ap2-20/12 ) , dry type air filter for scanner air fan ( model no . hpsc-315-swsi )