KG

KG
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KG

Product catalog summary
Overview of Compact Grille Model KG
The Compact Grille Model KG is engineered for both supply and return air systems, featuring a compact design that integrates the front frame, blades, and hit-and-miss damper into a single unit. This design reduces mounting depth and minimizes vortex formation, ensuring even air distribution. The grille is available in stainless steel, aluminium, and galvanized sheet steel, with options for concealed mounting and additional accessories like plenum boxes and rubber lip seals.
Construction and Models
The grille is made from anodised aluminium, stainless steel, and galvanized sheet steel. It comes in various models, including horizontal and vertical blade configurations for different ductwork types. Accessories such as plenum boxes, rubber lip seals, cover frames, and mounting frames are available to enhance installation and performance.
Dimensions and Installation
The grille is available in standard sizes with specific dimensions for aluminium and stainless steel models. Installation requires stress-free mounting into spiral ductwork, with guidelines for duct diameter and grille height to ensure optimal performance.
Technical Data
Technical specifications include pressure loss, noise levels, and face velocity for both supply and return air. Detailed data is provided on the position of the hit-and-miss damper and its impact on performance, including correction factors for scattered air jets.
Performance Characteristics
The grille's performance is detailed in terms of maximum end velocity, jet path, critical throw, and maximum penetration. Temperature and induction ratios are also discussed, with guidelines for minimum distances between grilles to maintain performance.
Blade Position and Airflow
The document explains how blade position affects the angle of air propagation and throw length, with options for straight and diverging blade positions to control airflow direction and distribution.
Specifications
The Compact Grille Model KG is designed for supply and return air in duct and box installations. It features pivoting horizontal air deflection blades and a hit-and-miss damper. Constructed from galvanized sheet steel, it is available in various lengths and heights. The compact design ensures high stability, torsional rigidity, and low noise generation, with a 20% higher airflow capacity compared to grilles with air dampers.
Order Code and Details
The order code for the grille includes specifications for type, model, blades, length, height, air throw pattern, material, paint, cover frame, and mounting frame. For example, the code KG-Q-08-0615-115-L000-SV-0000-BR-ER0 specifies a grille with horizontal blades, a length of 615 mm, and a height of 115 mm, made from galvanized sheet steel without paint, and includes a cover frame.
Plenum Box Specifications
The plenum box, designed for use with the grille, is rectangular and made from galvanized sheet steel. It includes options for rubber lip seals, insulation, and various spigot positions. The order code for the plenum box specifies type, air diffuser, length, height, design, fastening, material, damper, rubber lip seal, insulation, height and width of the box, spigot diameter, and position.
Construction and Materials
The grille and plenum box are constructed using a clinch joining technique for better anticorrosive protection. Materials include galvanized sheet steel, stainless steel, and anodized aluminum. The grille is available with or without a cover frame and mounting frame, with options for powder coating in RAL colors.
Performance and Installation
The grille's design allows for simple air volume and ductwork regulation, with adjustable blades for optimal air distribution. It is suitable for installation in rectangular ductwork and spiral ductwork, with a small mounting depth required.
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Catalog excerpts

KG-2

01/01 - 2 Construction subject to change. Version: 21.09.2018 No return possible!

 Open the catalog to page 2
KG-3

Compact Grille Model KG T--T Description The compact grille type KG-... can be used for both supply air and return air systems. Owing to its compact construction - the front frame and blades for air distribution and the hit-and-miss damper for air volume control consist of a single component -the compact grille requires only a small mounting depth. This small mounting depth reduces vortex formation at the hit-and-miss damper, thus ensuring a uniform inflow of air over the entire diffuser surface of the grille (see velocity profile). Moreover, the compact construction gives the grille very high...

 Open the catalog to page 3
KG-4

Compact Grille Model KG Models and dimensions Dimensions KG-Q-08-... KG-R-08-... All combined lengths and heights available! Special dimensions are not possible! All combined lengths and heights available! Special dimensions are not possible! Installation dimensions of the aluminium and stainless steel models: KG-Q-08-... Alu / V2A : (L+10) x H 1.) The stainless steel and aluminium models with H=65 - 315 and sheet steel model with H=165 mm are delivered without raised ends of the hit-and-miss dampers. Installation dimensions of the aluminium and stainless steel models: Construction subject to...

 Open the catalog to page 4
KG-5

Compact Grille Model KG Dimensions of accessories Plenum box (-AK) for KG-Q-08-... / KG-Q-15-... With fixing lugs Spigot arrangement with plenum box below the ceiling / in front of the wall with plenum box above the ceiling / behind the wall 01/01 - 5 Construction subject to change. - Lateral spigot (-S1, standard) - Spigot from above (-S0) - Spigot front side (-S4) Dimensions and prices for spigot from above (-S0) and spigot front side (-S4) upon request. Version: 21.09.2018 No return possible!

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KG-6

Plenum dimensions for aluminium and stainless steel models: Construction subject to change.

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KG-7

Available sizes Length L < 815 mm - 4 wall anchors Length L > 815 mm - 6 wall anchors Mounting frames are only delivered with wall anchors (-ER2) on special request (at an extra charge). Construction subject to change.

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KG-8

Hit-and-miss damper position OPEN in % Construction subject to change.

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KG-9

Compact Grille Model KG Return air face velocity Correction factor (supply air and return air) AStirn LWA = LWA1 + KF Hit-and-miss damper position OPEN in % Construction subject to change. Version: 21.09.2018 No return possi

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KG-10

Compact Grille Model KG Maximum end velocity of jet Supply air without coanda effect Supply air with coanda effect 01/01 - 10 Construction subject to change. Version: 21.09.2018 No return possible!

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KG-11

Compact Grille Model KG Jet path Supply air without coanda effect Heating Cooling Critical throw Supply air with coanda effect 01/01 - 11 Construction subject to change. Version: 21.09.2018 No return possible!

 Open the catalog to page 11
KG-12

Compact Grille Model KG Maximum penetration Max. vertical penetration (in heating mode): 01/01 - 12 Construction subject to change. Version: 21.09.2018 No return possible!

 Open the catalog to page 12
KG-13

Compact Grille Model KG Temperature and induction ratios Supply air without coanda effect Supply air with coanda effect 01/01 - 13 Construction subject to change. Version: 21.09.2018 No return possible!

 Open the catalog to page 13
KG-14

Compact Grille Model KG Blade position Minimum distances Supply air without coanda effect with or without coanda effect Blade position 110° diverging The angle of propagation of the air jet and thus the length of throw can be affected by adjusting the vertical air deflection blades. Construction subject to change.

 Open the catalog to page 14
KG-15

Compact Grille Model KG Legend Vzu (m3/h) [l/s] = Supply air volume Return air volume total air jet volume at point x Maximum end velocity of jet Duct velocity Intake velocity, blower stream velocity, outflow velocity, relative to Astirn Face area horizontal throw vertical throw Maximum penetration in heating mode Critical throw Density Pressure loss A-weighted sound power level [Lwa = lwai + KF] A-weighted sound power level, relative to Astirn, = 0.08 m2 Correction factor Temperature difference between supply air temperature and room temperature (DTO = tZU - tR) Temperature difference between...

 Open the catalog to page 15
KG-16

Compact Grille Model KG Order code KG 01 Sample KG-Q-08-0615-115-L000-SV-0000-BR-ER0 Ventilation grille type KG I for duct and box installation I pivoting horizontal air deflection blades on the front side, additionally with hit-and-miss damper | grille length 615 mm | grille height 115 mm | blade position straight | galvanised sheet steel | without paint | with cover frame | without mounting frame Order details 01 - Type KG = Compact grille type KG 02 - Model Q = For duct and box installation R = For duct installation 03 - Blades 08 = With horizontal blades, additionally with hit-and-miss damper...

 Open the catalog to page 16
KG-17

Compact Grille Model KG Order code AK 01 Sample AK-32-0415-215-N-SM-SV-DK0-GD1-I0-KHS-KBS-SDS-S1 Plenum box, rectangular design I suitable for diffuser type KG I length 415mm I width 215mm I standard length I with screw mounting I galvanised sheet steel I without damper I with rubber lip seal I without box insulation I standard height of box I standard width of box I standard spigot diameter I lateral spigot Order details 01 - Type 08 - Damper AK = Plenum box, rectangular design DK0 = Without damper (standard) 02 - Air diffuser 32 = Ventilation grille type KG-Q 03 - Length 00315 = 315 mm 00415...

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KG-18

Compact Grille Model KG Specification texts Compact grille type KG-Q-08-... for supply air and return air, for installation in rectangular ductwork. Owing to its compact construction - the housing and hit-and-miss damper consist of a single component - the grilles have very high stability and torsional rigidity and require only a small mounting depth (50 mm). This gives low flow generated noise and a uniform inflow of the supply air over the entire grille surface. Compared with grilles equipped with air dampers, the air flow capacity is more than 20% higher at the same sound power level. The...

 Open the catalog to page 18
KG-19

Compact Grille Model KG Compact grille type KG-R-08-... for supply air and return air, for installation in sheet metal / spiral ductwork. Owing to its compact construction - the housing and hit-and-miss damper consist of a single component - the grilles have very high stability and torsional rigidity and require only a small mounting depth (56 mm). This gives low flow generated noise and a uniform inflow of the supply air over the entire grille surface. Compared with grilles equipped with air dampers, the air flow capacity is more than 20% higher at the same sound power level. The clinch joining...

 Open the catalog to page 19

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.