Throttle valves (DK 228)

  • Housing made of sendzimir galvanised sheet steel or stainless steel
  • Laser-welded without intruding fold
  • The male couplings are press-calibrated according to DIN 24147 part 1 and consequently they are dimensionally stable and fit accurately
  • Optionally available with electronic/pneumatic adjustment

For adjusting flow rates.

Housing:
The housing is made from galvanized or stainless steel. It is laser-welded without any intruding fold. The male couplings are press-calibrated according to DIN 24147 part 1 and consequently they are dimensionally stable and fit accurately. The shaft feedthrough of the bearing is located in a maintenance-free and airtight screwing.

Adjustment:
Thestandardthrottlevalvesareequippedwithmanualadjustmentdevicewhichlocks automatically (there are no tools necessary for adjustment and regulation). They can be used for electric remote regulation, too.

Insulation:
On request, the throttle valve is available with insulation in depths of 25 or 50 mm.

Installation:
According to DIN 1946 class 4, there must exist an accessibility to the duct system and the damper in order to actuate and maintain the latter.

Range of temperature:
The throttle valves operate within a temperature range from -15°C to +100°C.

Sealing system of the male coupling:
The push-fit ends with lip sealing are airtight according to DIN EN 12237 class D.

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

Exchange:
If the lip sealing should be damaged or lost, it is only necessary to put on a new loose sealing ring.

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

Visible installation:
Because no additional sealing components (tape e.g.) are required, the sealing conception with lip sealing system is especially suitable for visible installation. Attractive, architectural design which is up-to-date.

Hygiene:
The smooth surface of the laser-welded housing prevents the accumulating 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.

 

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

Manufacturer: AEROTECHNIK E. Siegwart
Type: DKH, no. 228-1

Circular throttle valve for regulatingthe volume flow in the air duct, in a compact form with the housing andthe blade made from galvanized steel, housing laser-welded without overlapping; shaft feedthrough ofthe throttle disc located maintenance-free and airtight, airtightness of the push-fit ends with lip sealing according to DINEN 12237classD.
Manual adjustment.

Range of temperature: -15°C to+100°C
Valid for air velocity up to12 m/s
Nominal diameters: 80 –630mm

Options:

  • Push-fit ends with lip sealing made from EPDM (DK, no. 9228)
  • With mounted bracket for electronic or pneumatic actuator (DKM, no. 228-2)
  • Blade with perforated plate
  • Stainless steel INOX 304 or 316