FMS needle punched felt dust bags

nomex filter bagHHH filter memdia Inc. selects NOMEX  fiber from Dupont Teijin fiber co., ltd and advanced international standard and the equipments to produce NOMEX high temperature resistant needle punched filter felt. NOMEX  is the general designation of America Dupont's NOMEX and Japan Teijin' CONEX. To sew the NOMEX  filter bag, it must use the special sewing thread. NOMEX sewing thread is produced by ourselves, it has high intension, good wear resistance and high temperature resistant up to above 260degree.Filter bags, dust collector bags, dust bags, filter socks, bags, tubes, socks - they all mean the same thing: An industrial grade fabric filter made from heavy duty material, all textile based, used in dust collecting systems, in either process filtration or pollution control.

 Name
Aramid filter needle felt
 Material
Fibre
100%Aramid
Scrim
100%Aramid
Weight(g/m2)
500
Thickness(mm)
2.1
Density(g/m3)
0.24
Air permeability (L/dm2.min)
150
Breaking Strength(N/5cm)
TD
1000
LD
800
Elongation@200N/5cm
TD
<3
LD
<3
Shrinkage@90min
Temp(¡æ)
250
 %
≤2
 Temperature(¡æ)
Continuous
200
Peak
240
 Treatment
Heat set, singed, calender

Dust bags come in 5 basic designs:

Pulse jet bags (bottom loader or bottom removal)
Pulse jet bags(top loader or top removal)
Shaker design
Reverse air design
Envelope bags

Pulse jet bags are cleaned using compressed air to mechanically "pulse" or snap the bag periodically so that the built up filter cake is discharged and the flow through the media is returned to its higher air permeability.Pulse jet bags are installed on wire cage supports and filter from the outside/ in. In the bottom load design, bags are pre-installed on their cages and then attached to a mounting thimble or cup which hangs down from the underside of the tube sheet. The tube sheet is a metal plate with regularly spaced holes which serves as the top of the gas tight metal box known as a dust collector. The top edge of the bottom loading bag is normally tucked into the cage and the entire assembly is attached to the thimble or cup with a hose clamp. Installation of bottom loading bags is more difficult because of being on the dirty side of the collector and having no catwalks or surfaces on which to stand. Some bottom loaders are on the top of large storage bins on tall silos which make installation potentially dangerous. Bottom loader collectors are frequently used when headroom above the collector is not adequate for top removal design bags.Bottom loading bags are less expensive than comparable size top loaders because the top is plain with no special attachment features

FAQ for HHH Filter Baq & dust Bags

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