8 Pleats 12 Pleats 150mm PTFE Filter Bag 138mm Pleat Cage

PTFE Star Bag And Star Cage Energy Consumption And Maintenance Cost Reduce PTFE Bag 150 Pleat Bag And 138 Pleat Cage

1. The Match of Star bags and Cages

The filter pleat/star bags are open on the top and closed on the bottom. The bottom can be closed in various ways --tied-off, with metal clamps, with folds sewn flat, inserting a bottom circle or other methods. The stop of the star/pleat bag is not star-shaped but cylindrical, meaning that it is finished off, as desired, as conventional filter bags, with snap band rings with double-beaded gasketing, felt strips, rings or other conventional installation methods. The open top of star/pleat bag can therefore be made to fit any standard cell plate and gasketing size. The filter star/pleat bag material applicable is many fold and may be needled felt, non-woven, woven material, warp-knitted, circular-knitted fabric also out of micro-filament yarn, fiberglass and/or metal fabrics. The length and diameter of the filter pleat/star bag is variable in accordance with the needs in line with the filter housing dimensions.

The pleat (star) filter bag has an inside support construction, star cage. This star (spider) cage can be made of mild steel, stainless steel, galvanized wire. The star/pleat/spider cage has wires running parallel down the length of the cage to form the point of each star, these rods, two for each ray, are connected to center star/pleat shapes (spider shape supporting ring, called spider for short), which are placed at regular intervals down the length of the star (spider) cage. The rods, forming the tips of the rays, are set one each side of the star ray close to the point. There is space between them that prevents a sharp star point, in order to reduce mechanical abrasion to the filter material. The filter star/pleat bag touches the cage only along the edges of these to rods, which also minimizes mechanical damage and allows the pleat/star bag to be used fully as a filtration surface. The star/spider cages can also be constructed of extruded aluminum or plastic profile. The profiles have an indentation at each star point, again so that the filter material is held on two round edges instead of having a sharp point. The star/pleat (spider) cages can also be made out of welded wire or out of a star pipe construction.

Star filter cages are special designed to fit star bags, which is not like ordinary ones with tigh match. Star cages is a kind of loose match of star bags, which is good for deashing.

Match Of Star Bags and Star Cages

2. How to choose star filter bags

Main features of the performance of star bags

   1)Polypropylene is attacked by UV light, and will dimensionally deform under unsupported load over 82℃

   2)PPS is attacked by strong oxidising agents (O2, NOx, Br2) – the presence of which, lower its recommended operating temperature

   3)P84 is attacked by Sox in power station applications

   4)PTFE will elongate under load at elevated temperature

3. Pack of Star/ pleat Cages

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