08/10 - 2 Construction subject to change. Version: 15.01.2018 No return possible!

Description Application range Multi-leaf damper types HKP and HKU can be used in air-conditioning and ventilation systems as control, throttle or shut-off dampers to control pressure and volumetric flow. The flow-favouring blades are adjusted together, rotating in opposite directions, via external plastic gear wheels. The external arrangement of the gears has the advantage that, in comparison with internally arranged gears exposed to the air flow, they do not become dirty that quickly. A cover plate protects the gear wheels from outside dirt and reduces the personal accident danger during assembly...

Multi-Leaf Damper Models HKP / HKU model HKP - with plastic bearing HKU - with sintered bearing HKU 180-K - with brass bearing (only H = 100 available) Accessories - Add-on parts - Mounting frame 35/35/4 with riveted wall anchor (-ER) - Flat-steel counter frame 33/5 (-FG) - Angular steel counter frame 30/30/3 (-WG) - Locking device (-FV, only HKU / HKP), console and hand lever mounted ex works to the multi-leaf damper. - Extended driving axle (-VA) only available with bearing block (at an extra charge) - Bearing block (-LB) - Electric actuator, 2/3-point - 5 Nm, 24 V AC/DC (-E1) / 230 V AC (-E2)...

Multi-Leaf Damper Models HKP / HKU Models and dimensions Dimensions HKP (with plastic bearing) HKU (with sintered bearing) Available sizes HKP / HKU Standard series of dimensions Note: The dimensions w1, w2 and x are rounded values! All combined lengths and heights available. Construction subject to change.

As standard, multi-leaf dampers are supplied with corner angles. The special form of the corner holes allows them to be connected to the connection systems available on the market (e.g. Metu system M 2/M 3) The number of holes does not include the 4 corner holes. Number of holes B All combined lengths and heights available. The above figure shows the division of multi-leaf dampers greater than 1998 mm and 2000 mm in height. The blades in the two sections are joined by a coupling rod. The primed mounting frame 35/35/4 is only available on special request. Construction subject to change.

Multi-Leaf Damper Models HKP / HKU Multi-leaf damper divided vertically The figure opposite shows the division of multi-leaf dampers greater than 1998 mm and 2000 mm in width. It is not possible to join the two sections. Drive end 1 x "left" and 1 x "right". The primed mounting frame 35/35/4 is only available on special request. Vertically and horizontally divided multi-leaf dampers The figure opposite shows the division of multi-leaf dampers greater than 1998 mm and 2000 mm in width and height. The blades in the two sections on top of each other are joined by a coupling rod. It is not possible...

Multi-Leaf Damper Models HKP / HKU Dimensions of accessories Assembly detail Mounting frame (-ER) Flat-steel counter frame (-FG) Angle counter frame (-WG) Multi-leaf dampers can be additionally fitted with: 1.) Mounting frame 35/35/4 with riveted wall anchor (-ER) 2.) Flat-steel counter frame 33/5 (-FG) 3.) Angular counter frame 30/30/3 (-WG) undrilled or drilled. All frames are supplied in primed design. Mounting frame (-ER) Wall anchor Wall anchor arrangement Height (mm): H < 1000 or 1003 ^ 2 anchors on each side H > 1000 or 1003 ^ 3 anchors on each side Bearing block (-LB) A bearing block...

Multi-Leaf Damper Models HKP / HKU with electric actuator Standard assembly limit switch CLOSED OPEN Installation options: Integrated limit switches The electric actuators are available with integrated / mounted limit switches. Integration option: Damper position "CLOSED" 1 limit switch (-ES1Z) - with 2 limit switches "CLOSED" and "OPEN" (-IS2) Damper position "OPEN" 1 limit switch (-ES1A) with 2 limit switches, "CLOSED" and "OPEN" (-ES2) Electric limit switches can be installed to indicate position or to perform switching functions If an electric actuator or pneumatic servo cylinder is used,...

Multi-Leaf Damper Models HKP / HKU Installation next to multi-leaf damper (at an extra charge) Installation above multi-leaf damper (at an extra charge) with pneumatic servo cylinder H = 201-565 or H = 200-600 Console type I (screwed-on) Console type II (screwed-on) 08/10 - 10 Construction subject to change. Version: 15.01.2018 No return possible!

Technical data Volumetric flow range Leak air volume with closed damper (HKU / HKP) Pressure loss and noise level Pressure loss (as a function of the blade position a) Open connection Correction factor (for flow generated noise) Construction subject to change.

Multi-Leaf Damper Models HKP / HKU Selection actuator / servo cylinder HKP / HKU-E (with electric actuator) HKP / HKU-P (with pneumatic servo cylinder) The electric actuator or pneumatic cylinder can also be installed at a later stage. When an electric actuator is fitted, a control panel must be attached next to or above the damper during mounting. For standard mounting of a pneumatic servo cylinder, use control panel type I for heights of up to < 565 or 600 and control panel type II for heights from > 634 or 800. When a thrust actuator or servo cylinder is mounted on site, it i recommended also...

*Spring return actuator 62 dB (A) Electric terminals 24 V AC/DC, 230 V AC OPEN - CLOSED control Electric terminals 24 V AC/DC, 230 V AC Two-point Three-point 08/10 - 13 Version: 15.01.2018 Construction subject to change.

Connection diagram Pneumatic servo cylinder Legend Apt (Pa) = Pressure loss vstirn (m/s) = Intake velocity, blower stream velocity, out flow velocity, relative to B x H a (°) = Blade position Lwa[dB(A)] = A-weighted sound power level [LWA = LWA1 + KF] LWAi [dB(A)] = A-weighted sound power level, relative to 1 m2 p (kg/m3) = Density KF (-) = Correction factor Astirn (m2) = Face area H (mm) = Height B (mm) = Width Vleck (m3/h) = Leak air volume Vleck [l/s] = Leak air volume Construction subject to change.