procurement of bag filters for ahp of unit no 1 and 2 2x210 mw at sgtps mppgcl birsinghpur procurement of bag filters for ahp of unit no 1 and 2 2x210 mw at sgtps mppgcl birsinghpur , bag filters ( 100% nomex ) stitched with three rows nomex thread bottom closed with fabric disc & top with stainless steel snap made from nomex needle felt singed and calendared on outer side with fabric as per following specification:- fabric- 100% nomex non woven needle felt. weight- 600 gms per sq. mtr. air permeability ( litt. / dm². min@200pa ) – 120 ltr. design pressure - 6-7 kg / cm² vacuum - 760 mmhg size:- bag length-88” ( 2235 mm ) i.d.- 147.5 mm o.d. - 152.0 mm resistance to temperature:- continuous- ( 180-200 ) drg. c peaks- 235 deg. c maximum change in dimensions at 200 deg. c ( % ) <1% material composition web- m-aramide scrim- m-aramide thickness - 2.7mm density - 0.22gm / m3 bursting strength - ( 32 kg / cm2 minimum ) tensile strength length ( dan ) - 40 cross ( dan ) - 88 elongation at break length ( % ) - 23% cross ( % ) - 37% surface design treatment - heat set singed face side