Dampers for Industrial Plants, FELLOW CO.,LTD.

Construction

Used for shut-off in flue gas line of dense and sticky dust.

1. It consists of casing, blade, shaft, gland packing, sealing mechanism and actuators.
2. Normally the blades are moved same distance of duct diameter for shut-off.
3. For shut-off method, by only packing, by using fastening bolts, by seal air or fastening cam.
4. Moving the blades, by wire rope, by chain block, or using power, screw-rod, chain, wire rope, cylinder rod, etc.

Product Line

1. Round or rectangular, both from diameter 300 mm up to 3500mm, and the following types,

   1) Normal Type: up to 350℃

   normal: metal touch / high close: packing

   2) High Temperature Type
   : from 351℃ to 800℃

   normal: metal tough / high close: packing

   3) Anti-Erosion Type

   normal: metal touch / high close: packing
   ( Hastelloy lining, also available )

   4) Anti-abrasion Type

   normal: metal touch / high close: packing

2. normal: metal touch / high close: packing

Special features

1. normal: metal touch / high close: packing
2. Minimize the width of damper.
   No stick-out of blades in the duct upon open and shut motion.
3. Ensure the smooth open and shut.
   By using the simple blade construction, minimize the distortion of blades by heat and ensure the smooth open and shut and apply the dust removal mechanism for high dust application.
   (in case dust accumulation is foreseen, necessary to install cleaning hole and dust hopper)
4. Realize complete shut-off by using elastic seat and seal air.
5. Open blade type, possible to check the conditions of the blade (such as distortion, erosion, etc.) upon full open.

Special features

Air or Gas Duct in Boilers, Gas turbines for power generation, Incinerators, Iron & Steel Plant, Cement Plant, Glass Making Plant, Oil Refinery, Deodorization Plant, Marine Boilers, etc.