XKA

Splitter frames with folded edges

Splitter thickness 100 mm

For high insertion loss with broadband damping, even in the high-frequency range

Energy-saving splitters, ready to be used in air conditioning systems

Attenuation effect due to absorption
Energy efficient due to aerodynamically profiled frame (radius > 15 mm)
Acoustic data measured to ISO 7235
Absorption material is biosoluble and hence hygienically safe
Absorption material faced with glass fibre fabric as a protection against erosion due to airflow velocities up to 20 m/s
Absorption material non-combustible, to EN 13501, fire rating class A1
Intermediate sizes in increments of 1 mm
Operating temperature up to 100 °C

Optional equipment and accessories

Additional perforated sheet metal to protect the absorption material
Stainless steel, aluminium and PUR-coated constructions upon request

Application

Application

Sound attenuator splitters of Type XKA, used for the reduction of fan noise and air-regenerated noise in air conditioning systems
Attenuation effect due to absorption
Broadband attenuation even in the high frequency range
Hygiene tested and certified to VDI 6022
For use in potentially explosive atmospheres (ATEX), zones 1, 2, 21 and 22 (outside)

Special characteristics

Increased insertion loss even in the high-frequency range
Up to 30 % lower differential pressure
Energy efficient and/or space saving due to aerodynamically profiled frame
Hygiene tested and certified
Multi-section construction available for large dimensions

Nominal sizes

H: 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 mm (intermediate sizes 150 – 2500 mm in increments of 1 mm)
Height subdivided: 2501 – 5000 mm, in increments of 1 mm
L: 500, 750, 1000, 1250, 1500 mm (intermediate sizes 501 – 2500 mm in increments of 1 mm)
Length subdivided: 2501 – 3000 mm in increments of 1 mm
Undivided construction: H + L 4000 mm max., H and L 1500 mm max. (if one dimension is 1500 mm, the other one must not exceed 1500 mm)

Description

Variants

XKA100: Splitter thickness 100 mm
XKA200: Splitter thickness 200 mm
XKA230: Splitter thickness 230 mm
XKA300: Splitter thickness 300 mm

Construction

Splitter surface

F: Glass fibre fabric
L: Glass fibre fabric and additional perforated sheet metal to protect the absorption material

Parts and characteristics

Aerodynamically profiled frame
Absorption material to reduce air-regenerated noise by absorption

Useful additions

U-sheets/clamp sheets to join subdivided attenuator splitters

Construction features

Aerodynamically profiled splitter frame (radius > 15 mm) that enables a reduction of turbulence both upstream and downstream; frame with grooves for increased rigidity
Frame edges are folded to protect the infill
Operating temperature up to 100 °C (construction with perforated sheet metal up to 300 °C for 8h max.)

Materials and surfaces

Splitter frames made of galvanised sheet steel
Absorption material is mineral wool

Mineral wool

To EN 13501, fire rating class A1, non-combustible
RAL quality mark RAL-GZ 388
Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
Inert to fungal and bacterial growth

Standards and guidelines

Insertion loss and sound power level of air-regenerated noise tested to ISO 7235
Meets the hygiene requirements of VDI 6022, DIN 1946, parts 1 and 2 as well as of VDI 3803
Directive 94/9/EC: Equipment and protective systems intended for use in potentially explosive atmospheres

Maintenance

Maintenance-free as construction and materials are not subject to wear

Technical information

Function, Technical data, QUICK SIZING, Specification text, Order code, Related products

Schematic illustration of XKA 00104321_0.

① Splitter frame
② Absorption material faced on both sides with glass fibre fabric

Functional description

The attenuation effect of the XKA splitters is due to absorption.

The splitters have a mineral wool infill as absorption material.

Splitter thickness	100, 200, 230, 300 mm
Nominal sizes	150 × 500 mm – 1499 × 2500, 2500 × 1499 or 1500 × 1500 mm
Height subdivided	2501 – 5000 mm
Length subdivided	1501 – 3000 mm
Intermediate sizes	In increments of 1 mm
Operating temperature	Up to 100 °C

The length (L) of sound attenuator splitters refers to the airflow direction

Quick sizing tables provide a good overview of the insertion loss and of differential pressures for different airway widths and airflow velocities. Intermediate values can be calculated with our Easy Product Finder design programme.

The sound power levels L_WA apply to sound attenuators with a cross-sectional area (B × H) of 1 m².

The differential pressures apply to sound attenuators with a height of 1 m.

MSA, MKA, XSA, XKA, RKA, air-regenerated noise

v_s	m/s	4	6	8	10	12	14	16	18	20
L_WA	dB(A)	21	31	38	43	48	51	55	58	60

XKA100, XSA100, insertion loss and differential pressure

L	S	Centre frequency f_m [Hz]								v_s [m/s]
L	S	63	125	250	500	1000	2000	4000	8000	4	10	20
L	S	D_e								Δp_st
mm	mm	Hz								Pa
500	40	3	5	10	18	37	45	31	23	5	32	>80
1000	40	4	8	19	29	46	50	39	32	7	44	>80
1000	60	4	7	16	26	42	47	34	26	5	33	>80
1500	40	6	11	27	39	50	50	47	40	9	55	>80
1500	60	6	9	23	35	50	50	42	34	6	38	>80
1500	100	5	5	14	27	44	46	31	20	5	29	>80
2000	40	7	14	36	50	50	50	50	49	11	66	>80
2000	60	7	12	30	45	50	50	50	41	7	44	>80
2000	100	6	7	19	34	50	50	39	26	5	32	>80
2000	200	3	4	11	24	38	24	14	10	4	25	>80
2500	40	9	18	44	50	50	50	50	50	12	77	>80
2500	60	8	14	37	50	50	50	50	49	8	50	>80
2500	100	7	8	23	42	50	50	48	32	6	34	>80
2500	200	4	5	13	29	46	30	17	12	4	26	>80
3000	40	10	21	50	50	50	50	71	50	14	>80	>80
3000	60	10	17	44	50	50	50	50	50	9	56	>80
3000	100	8	9	28	49	50	50	50	37	6	37	>80
3000	200	5	6	16	34	50	35	20	13	4	27	>80

XKA200, XSA200, insertion loss and differential pressure

L	S	Centre frequency f_m [Hz]								v_s [m/s]
L	S	63	125	250	500	1000	2000	4000	8000	4	10	20
L	S	D_e								Δp_st
mm	mm	Hz								Pa
500	50	2	12	18	31	44	42	29	23	9	58	>80
1000	50	6	14	22	44	50	50	36	27	11	67	>80
1000	100	3	8	15	32	46	38	23	16	6	35	>80
1000	200	2	5	11	22	25	18	11	7	3	21	>80
1500	50	8	20	31	50	50	50	48	33	12	75	>80
1500	100	5	12	22	47	50	50	31	20	6	40	>80
1500	200	3	7	15	31	35	24	14	8	4	23	>80
1500	400	2	4	11	18	15	9	6	5	2	15	61
2000	50	10	27	40	50	50	50	50	39	13	>80	>80
2000	100	6	16	28	50	50	50	39	24	7	44	>80
2000	200	4	9	20	41	45	30	17	10	4	25	>80
2000	400	2	5	14	24	19	11	7	6	3	17	67
2500	50	13	34	47	50	50	50	50	45	15	>80	>80
2500	100	7	21	34	50	50	50	45	27	8	48	>80
2500	200	4	11	23	50	50	36	19	11	4	28	>80
2500	400	3	7	16	29	21	13	8	6	3	18	72
3000	50	16	42	50	50	50	50	50	50	16	>80	>80
3000	100	8	26	39	50	50	50	50	31	8	53	>80
3000	200	5	13	27	50	50	41	21	12	5	30	>80
3000	400	3	8	18	34	24	14	9	7	3	19	77

XKA230, XSA230, insertion loss and differential pressure

L	S	Centre frequency f_m [Hz]								v_s [m/s]
L	S	63	125	250	500	1000	2000	4000	8000	4	10	20
L	S	D_e								Δp_st
mm	mm	Hz								Pa
500	60	4	7	12	25	34	25	19	18	9	57	>80
1000	60	5	12	20	35	48	40	27	21	10	66	>80
1000	115	4	8	16	27	35	27	18	15	6	35	>80
1000	230	3	5	12	18	20	14	10	9	3	20	>80
1500	60	6	16	27	46	50	50	35	25	12	74	>80
1500	115	5	12	22	36	46	37	24	18	6	40	>80
1500	230	3	7	16	25	28	19	12	11	4	23	>80
1500	460	2	2	11	15	10	1	0	3	2	15	59
2000	60	7	21	35	50	50	50	43	29	13	>80	>80
2000	115	5	15	28	45	50	47	29	21	7	44	>80
2000	230	4	9	21	32	36	24	14	13	4	25	>80
2000	460	3	4	14	20	15	1	0	4	3	16	64
2500	60	8	25	43	50	50	50	50	33	15	>80	>80
2500	115	6	19	35	50	50	50	34	24	8	48	>80
2500	230	5	12	26	40	43	28	17	14	4	27	>80
2500	460	4	5	18	25	19	0	0	5	3	17	69
3000	60	9	30	50	50	50	50	50	37	16	>80	>80
3000	115	7	22	41	50	50	50	40	27	8	52	>80
3000	230	6	14	31	47	50	33	19	16	5	29	>80
3000	460	5	6	21	31	23	0	0	5	3	19	74

XKA300, XSA300, insertion loss and differential pressure

L	S	Centre frequency f_m [Hz]								v_s [m/s]
L	S	63	125	250	500	1000	2000	4000	8000	4	10	20
L	S	D_e								Δp_st
mm	mm	Hz								Pa
500	75	4	7	17	25	34	32	22	18	10	63	>80
500	150	2	5	11	16	19	17	12	9	5	33	>80
1000	75	6	15	24	42	48	50	33	26	11	71	>80
1000	150	3	9	18	27	34	28	17	11	6	36	>80
1000	300	1	6	11	15	16	13	8	7	3	21	>80
1500	75	8	20	33	50	50	50	44	30	13	79	>80
1500	150	3	14	26	38	46	39	21	13	6	39	>80
1500	300	2	8	16	21	21	17	10	8	4	22	>80
1500	600	1	6	11	12	9	6	4	5	2	15	60
2000	75	10	25	42	50	50	50	50	34	14	>80	>80
2000	150	4	18	33	48	50	50	26	16	7	42	>80
2000	300	2	11	20	26	26	21	12	9	4	23	>80
2000	600	1	7	14	16	11	7	5	5	2	15	60
2500	75	13	30	50	50	50	50	50	38	15	>80	>80
2500	150	5	23	40	50	50	50	30	18	7	45	>80
2500	300	3	14	25	32	32	25	13	10	4	25	>80
2500	600	1	9	17	19	13	7	5	6	3	16	64
3000	75	15	35	50	50	50	50	50	42	16	>80	>80
3000	150	6	28	48	50	50	50	35	20	8	48	>80
3000	300	3	17	30	38	37	29	15	11	4	26	>80
3000	600	2	11	21	23	14	8	5	6	3	17	68

Sound attenuator splitters used for the reduction of fan noise and air-regenerated noise in air conditioning systems. Attenuation effect due to absorption. Energy-saving as well as hygiene tested and certified.

Installation kit consists of an aerodynamically profiled frame (radius > 15 mm) and absorption material.

Frame edges are folded to protect the sound absorbing infill.

Insertion loss and sound power level of the air-regenerated noise tested to ISO 7235.

Meets the hygiene requirements of VDI 6022, DIN 1946, parts 2 and 4, as well as of VDI 3803.

Special characteristics

Increased insertion loss even in the high-frequency range
Up to 30 % lower differential pressure
Energy efficient and/or space saving due to aerodynamically profiled frame
Hygiene tested and certified
Multi-section construction available for large dimensions

Materials and surfaces

Splitter frames made of galvanised sheet steel
Absorption material is mineral wool

Mineral wool

To EN 13501, fire rating class A1, non-combustible
RAL quality mark RAL-GZ 388
Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
Inert to fungal and bacterial growth

Construction

Splitter surface

F: Glass fibre fabric
L: Glass fibre fabric and additional perforated sheet metal to protect the absorption material

Technical data

Splitter thickness: 100, 200, 230, 300 mm
Nominal sizes: 150 × 500 mm – 1499 × 2500, 2500 × 1499 or 1500 × 1500 mm
Height subdivided: up to 5000 mm
Length subdivided: up to 3000 mm
Intermediate sizes: in increments of 1 mm
Operating temperature: up to 100 °C

The length (L) of splitter attenuators refers to the airflow direction.

Sizing data

B _______________________ [mm]
H _______________________ [mm]
L (in airflow direction) __________ [mm]
V _______________________ [m³/h]
D_e at 250 Hz ________________ [dB]
Δp_st _______________________ [Pa]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Type
XKA Sound attenuator splitter

Splitter thickness [mm]
100
200
230
300

Splitter surface
F Glass fibre fabric
L Glass fibre fabric under perforated sheet metal

Height H [mm]

Length L in airflow direction [mm]

The length (L) of sound attenuator splitters and splitter attenuators refers to the airflow direction. Remember this with regard to vertical ducting.

Order example: XKA100–L/1500×1500

Splitter thickness	100 mm
Splitter surface	Glass fibre fabric and perforated sheet metal
Height	1500 mm
Length	1500 mm

Dimensions and weight

XKA

H: 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 mm (intermediate sizes 150 – 2500 mm in increments of 1 mm)
Height subdivided: 2501 – 5000 mm, in increments of 1 mm
L: 500, 750, 1000, 1250, 1500 mm (intermediate sizes 501 – 2500 mm in increments of 1 mm)
Length subdivided: 2501 – 3000 mm in increments of 1 mm
Undivided construction: H + L 4000 mm max., H and L 1500 mm max. (if one dimension is 1500 mm, the other one must not exceed 1500 mm)

The total weight of a splitter sound attenuator is the combined weight of the casing (with standard flange or angle section frame) and all splitters.

The total weight for intermediate sizes can be generated with our Easy Product Finder design programme.

XKA100, weights

H	Glass fibre fabric (-F)					Glass fibre fabric and perforated sheet metal (-L)
H	L [mm]
H	500	750	1000	1250	1500	500	750	1000	1250	1500
mm	kg
300	2	2	3	4	4	3	4	5	6	7
600	3	4	4	5	6	5	7	9	11	13
900	4	5	6	7	8	7	10	12	15	18
1200	5	6	7	9	10	9	12	16	20	23
1500	5	7	9	10	12	11	15	20	24	28
1800	7	9	11	14	16	13	19	24	30	35

XKA200, weights

H	Glass fibre fabric (-F)					Glass fibre fabric and perforated sheet metal (-L)
H	L [mm]
H	500	750	1000	1250	1500	500	750	1000	1250	1500
mm	kg
300	3	4	5	6	7	4	6	7	9	10
600	5	6	8	9	11	7	10	12	15	18
900	6	8	11	13	15	10	13	17	21	25
1200	8	11	13	16	19	12	17	22	27	32
1500	10	13	16	19	22	15	21	27	33	39
1800	12	16	21	25	29	19	26	34	41	49

XKA230, weights

H	Glass fibre fabric (-F)					Glass fibre fabric and perforated sheet metal (-L)
H	L [mm]
H	500	750	1000	1250	1500	500	750	1000	1250	1500
mm	kg
300	3	5	6	7	8	4	6	8	10	11
600	5	7	9	11	12	7	10	13	16	19
900	7	10	12	14	17	10	14	19	23	27
1200	9	12	15	18	21	13	19	24	29	34
1500	11	15	18	22	25	16	23	29	35	42
1800	14	19	24	28	33	20	29	37	45	53

XKA300, weights

H	Glass fibre fabric (-F)					Glass fibre fabric and perforated sheet metal (-L)
H	L [mm]
H	500	750	1000	1250	1500	500	750	1000	1250	1500
mm	kg
300	4	6	7	9	10	5	7	9	11	14
600	7	9	11	14	16	9	12	16	19	22
900	9	12	15	18	21	12	17	22	27	31
1200	12	15	19	23	27	16	22	28	34	40
1500	14	19	23	28	33	19	27	34	42	49
1800	18	24	30	36	42	24	34	43	53	62

Installation details, Basic information and nomenclature

Upstream conditions after bends, junctions or a narrowing or widening of the duct, vertical upstream section, splitters upright

B Width of the sound attenuator
H Height of the sound attenuator

Installation and commissioning

Splitters are supplied as ready-to-install kits
Follow the installation information and comply with the general codes of good practice in order to achieve the given performance data
Up to height H = 1200 mm: any installation orientation, but we recommend upright installation of splitters
From height H = 1201 mm: upright installation only
The length (L) of sound attenuator splitters and splitter sound attenuators refers to the airflow direction; be sure to note how width, height and length are defined, particularly in case of a vertical airflow
Installation in ducts outside of closed rooms requires sufficient protection against the effects of weather

Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₃ [mm]

Outer diameter of circular silencers

L [mm]

Length of attenuator/silencer including spigot (in airflow direction)

L₁ [mm]

Length of acoustic cladding and acoustically effective length

B [mm]

Attenuator width and duct width (upright splitters)

H [mm]

Attenuator height and duct height (upright splitters)

T [mm]

Splitter thickness

S [mm]

Airway width

n [ ]

Number of flange screw holes

m [kg]

Weight

Nomenclature

f_m [Hz]

Octave band centre frequency

L_WA [dB(A)]

A-weighted sound power level of air-regenerated noise

D_e [dB]

Insertion loss

V [m³/h] and [l/s]

Volume flow rate

Δp_st [Pa]

Static differential pressure

All sound power levels are based on 1 pW.

All values were measured in a TROX lab and to EN ISO 7235. Intermediate values may be achieved by interpolation.

Lab measurements exceeding 50 dB are indicated as 50 dB, in line with common practice.

Downloads

informazioni di prodotto

Product data sheet Type XKA

Product data sheet 260 KB pdf

certificati

Declaration of hygiene conformity Type XKA

XKA_HC_2020_06_09_DE_en Hygiene certificate 2 MB pdf
Non-CE Manufacturer's statement XKA

XKA_NotCE_2022_02_08_14_48_56_DE_en Certificate 2 MB pdf
Statement Type XKA

Statement 130 KB pdf

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