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Smoke Dampers Series SD

Smoke Dampers Series SD
Smoke Dampers Series SD
Product Code : 95
Product Description

Smoke Dampers Series SD

MAIN CHARACTERISTICS : These are powered by a electric motor and can take two operating positions depending on whether the motor is activated or not. The tube and shut-off ball are made of rust-proof material. The motor casing mounts an auxiliary switch that is activated during switching of the damper. The damper has an external lever for manually positioning its shut-off ball and which also indicates its position. These dampers are used to control fumes in gas and fuel oil boiler smoke-stacks. They can be installed in both vertical and horizontal positions. Available in five versions:Ø 130 mm, 150 mm, 200 mm, 225 mm.
OPERATION : Without electric power supply the damper is positioned with the butterfly shut-off valve opening the flow. When electrical power is furnished the motor overcomes the force of the springs and turns the butterfly shut-off valve, closing the passage and keeping it open until electricity is shut-off. When electric power supply is cut out the return spring reopens the passage with the shut-off valve.
  • Rated supply voltage 230 Vac. (available 24, 110 Vac.; 50 Hz).
  • Absorbed power 5 ÷ 6 W.
  • Degree of protection IP 22 IEC 529 Standards, European References Standards CEI EN 60529.
  • Electrical capacity of 3 A, 250 Vac. Microswitches.
  • Max. flow temperature +250 °C.
  • Nominal opening time 25 sec.
  • Nominal closure time 6 ÷ 8 sec.
  • Total standard cable length 1000 mm.
  • Damper body Stainless steel
  • Motor base Brass
  • Ball-support pin Brass
  • Return spring Stainless steel
  • Motor cover Self-extinguishing ABS



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Contact Us
94/96, Nagdevi Cross Lane, Room 23/A, 3rd Floor, Mumbai - 400003, Maharashtra, India
Phone :+917259620676
Fax :91-22-23433945
Key Personnel
Mr. Chintan Sheth (Manager)
Mobile :+917259620676