Throttle valves (DK 228)

  • Housing made of sendzimir galvanised sheet steel or stainless steel
  • Laser-welded without intruding fold
  • The push-fit ends are press-calibrated according to DIN EN 12237, they are dimensionally stable and fit accurately
  • Optionally available with electronic/pneumatic adjustment

For adjusting flow rates.

Robustness:
In general the lip sealing is insensitive to damages in case of slightly canted or badly trimmed ducts.

Exchange:
If the lip sealing is damaged or lost due to an unforeseen event, it is only necessary to put on a new loose sealing ring.

Dismounting:
Because of the design of the sealing, the components can easily be separated from each other again.

Visible installation:
Because no additional sealing components, e.g. tape, are required, the sealing design with lip sealing system is especially suitable for visible installation.

Hygiene:
The smooth surface of the laser-welded housing prevents the accumulation of dirt and dust particles.

Stability:
Non-ageing lip sealing made of EPDM - a material which is resistant to slightly aggressive vapours and chemical products.

Sealing system of the push-fit ends:
The push-fit ends are airtight according to DIN EN 12237 Class D.

Temperature range:
The bypass dampers can be operated in temperature ranges between -15°C to +100 °C .

Installation information:
According to DIN EN 12097, the duct system and the throttle valve must be accessible for operation and maintenance.

The shaft feed-through of the throttle valve bearing is located in a maintenance-free and airtight screw connection.

Adjustment:
The standard throttle valves are equipped with a manual adjustment device, which locks automatically (no tools required for adjustment and regulation). They can also be used for electric remote regulation.

Insulation:
Throttle valves with insulation are available in the insulation thickness 25 or 50 mm for all versions.

Version 1: Throttle valve with manual adjustment device DKH
Version 2: Throttle valve with console for motor adjustment DKM
Version in stainless steel - material 1.4301 or 1.4571

Ref. No.: 228 with flat connection
Ref. No.: 9228 with lip sealing

Throttle valve, type: DKH, (DKM, DKP) - Make: AEROTECHNIK E. Siegwart.
Tube body made of sendzimir galvanised sheet steel - laser-welded, the shaft feed-through of the throttle disc is located in a maintenance-free and airtight screw connection; push-fit ends airtight according to DIN EN 12237 Class D
Temperature range for application: -15°C - +100°C