Dampers for Industrial Plants, FELLOW CO.,LTD.

Construction

Most popular type of dampers and used for shut-off, flow-control and balancing of the flow. And in case of installation in a duct, it is easy to install in a narrow space.

1. It consists of casing, blade, shaft, gland packing, sealing mechanism and actuators.
2. Normally the blades are rotated 0 to 90 deg. and control or shut-off the flow.

Product Line

1. Round or rectangular, diameter upto 3500mm, and the following types,

   1) Normal Type : upto 350℃

   normal: metal touch / high close: packing

   2) High Temperature Type : from 351℃  to 1300℃

   normal: metal tough / high close: packing

   3) Anti-Erosion Type

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

   4) Anti-abrasion Type

   normal: metal touch / high close: packing

2. Actuator: Air, Electrical, Hydraulic types are available.

Special features

1. Keep low pressure-loss even upon full open.
   Also mitigate disordered flow of air, gas, and others when flowing through dampers.
2. Wide control range of flow by selecting adequate blade feature and adequate actuator.
3. Realize high close, using elastic sheet (close ratio: 99.9 ～ 99.98 % in case of 3000mm dia.)
4. By our own design of seal construction, to keep high close, even temperature change of flow.
5. Good for continuous operation.

Special features

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