PURELINE35

Horizontal air discharge

PURELINE35

The clean solution for significantly less ceiling contamination

Unobtrusive slot diffuser, blends in perfectly with suspended ceiling systems
■ Very high comfort due to lower sound power levels and improved temperature and velocity reduction
■ More energy efficient due to lower pressure losses
■ Uniform air pattern reduces contamination of the ceiling caused by the induction of indoor air
■ New areas of application – such as air curtains to protect fresh food counters
■ High flexibility thanks to numerous variants

Optional equipment and accessories
■ Attractive appearance due to extruded aluminium sections with anodised finish or powder coating
■ Diffuser face can be placed symmetrically or asymmetrically
■ Plenum box with lining
■ End plates, end angles, corner sections
■ Different looks due to choice of black, grey or white air control elements

Initialize order code

General information

Application

Slot diffusers are used as supply air or extract air diffusers in comfort zones
Suitable as mixed ventilation system for many applications due to the variety of variants and high flexibility
Unobtrusive integration into suspended ceilings
For room heights up to 4 m (lower edge of suspended ceiling)
Suitable for large volume flow rates. Wide range of applications due to optional 1- to 4-slot front rail
One-way or alternating air discharge can be adjusted on site to meet local requirements
High induction results in a rapid reduction of the temperature difference and airflow velocity (supply air variant)
For constant and variable volume flows
For supply air temperature differences of -10 to +10 K

Special characteristics

Uniform air pattern reduces contamination of the ceiling caused by the induction of room air
Horizontal, angled or vertical air discharge by means of manually adjustable air control elements
Comfortable indoor climate due to high induction and rapid reduction of temperature differences and airflow velocities
Attractive appearance due to extruded aluminium sections with anodised finish or powder coating (according to RAL CLASSIC colour scale)
The diffuser face has been optimised for maximum volume flow rate at low sound power levels
Suitable for continuous linear arrangement

Nominal sizes

LN: 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
Intermediate sizes of the diffuser face are also available (in increments of 1 mm)

Variants

PL35-... :

-*: 1 to 4 slot front rail
-PF: Combination of diffuser face and plenum box with
fixed connection
-SF: Combination of diffuser face and plenum box with
detachable screw fixing
-CD: Overflow rail which can be integrated into a slotted
belt. The front rail has openings at the back through which
air can flow. The fixing of the overflow rail must be done on
site. The supplied connectors are used only for positioning
and aligning the overflow rail
-BD: Blind rail that can be integrated into a slotted band.
The diffuser face is closed on the reverse side so that there
is no air flow through the blind rail. The blind rail must be
fixed on site. The supplied connectors are used only for
positioning and aligning the overflow rail
-PB: Plenum box only (for combination with DS)
-DS: only front rail with B00 profile and screw fixing
-DF: only front rail with B00 profile and cross bar for fixing
-CS: Corner section

Position of the plenum box on the diffuser face, if the plenum box is shorter than the diffuser face

Central position of plenum box
Plenum box on the left (LE)
Plenum box on the right (RI)

Plenum box variant

Symmetric position of plenum box, side entry spigot (HS)
Symmetric position of plenum box, top entry spigot (VS)
Asymmetric position of plenum box, side entry spigot (HA)

Construction

Surface diffuser face

Anodised, E6-C-0, natural colour
P1: Powder-coated RAL 9010, pure white, GU 50
P1: Powder-coated RAL 9006, white aluminium, GU 30
P1: Powder-coated in any other RAL CLASSIC colour, GU 70

Attachments

D: Damper blade for volume flow rate balancing
LS: Lip seal
L: inner lining
EP: 2 end plates
EA: 2 end angles

Single diffusers are factory fitted with end plates or end angles. Either end plates or end angles can be used for the front end for continuous linear arrangements.

Accessories

EP: 2 end plates
EA: 2 end angles

For slot diffusers as continuous linear arrangement, the end plates or end angles must be ordered separately and installed on site. 2 alignment plates for connecting the front rails to each other are supplied separately with each slot diffuser without a factory-fitted end piece.

Construction features

Spigot suitable for circular ducts to EN 1506 or EN 13180
4 suspension lugs on plenum box for mounting by the customer
Manually adjustable air control elements with grooves to lock the elements for a particular air pattern
Factory set for a particular air pattern, manually adjustable on site (by others)
Spigot with groove for lip seal (only for lip seal version)
If the diffuser face is longer than the plenum box, the rear side of the protruding diffuser face ends are covered.
Plenum boxes are only available in nominal lengths
Exhaust air variant optionally available without air control blades (E0)
The optionally available neck extension in the standard dimensions 30, 55, 80, 105 and 129 mm can be used to compensate for structural conditions
Diffuser face fixing material for variants -SF and -DS supplied separately

Materials and surfaces

Diffuser face made from extruded aluminium section
Air control blades made of ABS plastic, UL 94, V-0, flame retardant
Plenum box made of galvanised sheet steel
End plates and end angles made of aluminium
Lip seal made of Evoprene
Lining made of mineral wool and closed-cell vinyl foam
Diffuser face with anodised finish, E6-C-0, natural colour
P1: powder-coated colour according to RAL CLASSIC
Air control blades similar to RAL 9005, jet black
G: Air control elements similar to RAL 9006, grey
W: Air control blades similar to RAL 9010, white

Mineral wool

Mineral wool on surfaces in contact with air laminated with glass fibre fabric, abrasion-resistant up to 20 m/s
Acc. to EN 13501, fire rating class A1, non-combustible
RAL quality mark RAL-GZ 388
Non-hazardous thanks to high biosolubility according to the German Ordinance on Hazardous Substances and Note Q of the European Regulation (EC) No. 1272/2008
Inert to fungal and bacterial growth

Standards and guidelines

Sound power level of the air-regenerated noise measured according to EN ISO 5135.
Conforms to VDI 6022

Maintenance

Low maintenance, as there is no wear and tear due to design and materials used
Inspection and cleaning according to VDI 6022

Disclosure of Chemicals

RoHS EU Directive 2011/65/EU (RoHS)This product or single variants comply with EU Directive 2011/65/EU (RoHS) on the restriction of the use of certain hazardous substances in electrical and electronic equipment. For more information, please refer to our Environmental Product Declarations. REACH 1907/2006 (EC Regulation REACH)This product or single variants comply with the provisions of EC Regulation No. 1907/2006, also known as REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). For more information, please refer to our Environmental Product Declarations.

TECHNICAL INFORMATION

Schematic illustration of PL35-*-SF

1 Diffuser face with 1, 2, 3 or 4 slots

2 Adjustable air control element
3 Screw fixing
6 Neck
7 Plenum box
8 Suspension lug
9 Spigot

Optional
4 End plate
5 End angle
10 Lip seal
11 Damper blade for volume flow rate balancing

Slot diffusers direct the supply air from ventilation and air conditioning systems into the room, either horizontally, at an angle or vertically. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and indoor air. The result is a mixed ventilation system for comfort areas with good room air circulation and low turbulence in the occupied zone. Type PURELINE35 slot diffusers are factory fitted with manually adjustable air control elements. The airflow direction can be adjusted to meet various local requirements. Air discharge is one-way or alternating. Heating operation with vertical flow is also possible, as is angled air discharge. The supply air to room air temperature difference may range from –10 to +10 K. A damper blade (optional) enables volume flow rate balancing for commissioning. To give rooms an aesthetic, uniform look, PURELINE35 diffusers may also be used for extract air.

Nominal lengths	600 – 1950 mm (in increments of 150 mm)
No. of slots	1, 2, 3 or 4
Neck extension	30, 55, 80, 105, 129 mm
Minimum volume flow rate, with Δtz = -10 K	7 l/s or 24 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)	225 l/s or 808 m³/h
Supply air to room air temperature difference	-10 to +10 K

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

Specification text

Slot diffusers of Type PURELINE50 with individually manually adjustable air control elements and 1, 2, 3 or 4 slots.

Air distribution can be alternating horizontal, alternating angled, vertical, one-way horizontal to the left or one-way horizontal to the right.

The slot diffusers are intended to be installed in suspended ceilings and are suitable for supply air and extract air. Ready-toinstall component which consists of a diffuser face with black, grey or white air control elements.

Variants with plenum box have 1 or 2 spigots. Symmetrically positioned plenum boxes may have side entry or top entry spigots. Asymmetrically positioned plenum boxes have only side

entry spigots.

The plenum boxes are fitted with 4 suspension lugs.

The diffuser face fixing can be detachable or non-detachable.

Spigots are suitable for circular ducts according to EN 1506 or EN 13180. The sound power level of air-regenerated noise is measured according to EN ISO 5135.

Special features

Uniform air pattern reduces contamination of the ceiling due to induced room air
Horizontal, angled or vertical air discharge by means of manually adjustable air control elements
Comfortable indoor climate due to high induction and rapid reduction of temperature differences and airflow velocities
Attractive appearance due to extruded aluminium sections with anodised finish or powder coating (RAL CLASSIC colour)
The diffuser face has been optimised for maximum volume flow rate at low sound power levels
Suitable for continuous linear arrangement

Materials and surfaces

Diffuser face made from extruded aluminium sections
Air control elements made of ABS plastic, UL 94, V-0, flame retardant
Plenum box made of galvanised sheet steel
End plates and end angles made of aluminium
Lip seal made of Evoprene
Lining is mineral wool with vinyl closed cell foam
Diffuser face with anodised finish, E6-C-0, natural colour
P1: Powder-coated, RAL CLASSIC colour
Air control elements similar to RAL 9005, black
G: Air control elements similar to RAL 9006, grey
W: Air control elements similar to RAL 9010, white

Mineral wool

Mineral wool faced with glass fibre fabric on the surfaces in contact with the air, abrasion-resistant up to 20 m/s
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
Inert to fungal and bacterial growth

Construction

Surface diffuser face

Anodised, E6-C-0, natural colour
P1: Powder-coated RAL 9010, pure white, GU 50
P1: Powder-coated RAL 9006, white aluminium, GU 30
P1: Powder-coated in any other RAL CLASSIC colour, GU 70

Technical data

Nominal lengths: 600 to 1950 mm, in increments of 150 mm
Diffuser face: up to 4 slots
Minimum volume flow rate, with Δtz = -10 K: 7 l/s or 24 m³/h
Maximum volume flow rate, at LWA ≅ 50 dB(A): 225 l/s or 808 m³/h
Supply air to room air temperature difference: -10 to +10 K

Sizing data

qv [m³/h]
Δpt [Pa]
LWA [dB(A)]

Life cycle assessment

A life cycle assessment is available for the product type in the form of an environmental product declaration (EPD), which has been checked and published by a programme holder.

PL35

–

1200 x 1050 x 123 x 30

–

B00

P1 - RAL 9016

1 Type
PL35 Slot diffuser PURELINE35

2 No. of slots
1, 2, 3, 4

3 System
S Supply air
E Extract air (air control elements as standard)
E0 Extract air (without air control elements)

4 Variant
DF Diffuser face with cross bar (only together with B00)
DS Diffuser face with fixing screws (only together with B00)
CD Air transfer section
BD Non-active diffuser
PB Plenum box only
PF Diffuser face fixed to the plenum box, non-detachable
SF Diffuser face fixed to the plenum box, detachable (only together with B00)

5 Plenum box variant
HS Symmetrical, with horizontal spigot
VS Symmetrical, with vertical spigot
HA Asymmetrical, with horizontal spigot

6 Nominal size [mm]
Diffuser face length × plenum box length × spigot diameter × neck extension

Diffuser face length
600 – 1950

Plenum box length
600 – 1950 (in increments of 150 mm)

Spigot diameter ØD#
98 (with 1 slot)
123 (with 1 or 2 slots)
138 (with 2 or 3 slots)
158 (with 3 or 4 slots)
198 (with 4 slots)

Neck extension
No entry: without neck extension
30, 55, 80, 105, 129

7 No. of spigots
1 (up to plenum box length 1200 mm)
2 (from plenum box length 900 mm)

8 Damper screen for flow rate balancing
No entry: without damper screen
D with damper screen

9 Lip seal
No entry: without lip seal
LS With lip seal

10 Lining
No entry: without lining
L With lining

11 Position of plenum box
No entry: centre
LE left
Rl right

12 Air pattern
No entry: alternating horizontal'
AS Alternating angled
HL Horizontal left
HR Horizontal right
V vertical

13 Extended border – diffuser face
No entry: without extended border
B00 With extended border

14 End pieces
No entry: without end pieces
EP End plate
EA End angle
To be ordered separately for continuous linear runs

15 Surface
No entry: anodised, E6-C-0 (no colour)
P1 powder-coated, specify RAL CLASSIC colour

Gloss level
RAL 9010 GU 50
RAL 9006 GU 30
All other RAL colours GU 70

16 Colour of air control elements
No entry: similar to RAL 9005 (jet black)
W Similar to RAL 9010 (pure white)
G Similar to RAL 9006 (white aluminium)

Order example: PL35-1-S-PF-HS/1200×1200×98/1

Type	PURELINE35
No. of slots	1
System	Supply air
Variant	Diffuser face fixed to the plenum box, non-detachable
Plenum box variant	Symmetrical, with horizontal spigot
Nominal size [mm]	Diffuser face length 1200, plenum box length 1200, spigot diameter 98, without neck extension
Number of spigots	1
Damper screen for volume flow rate balancing	without damper blade
Lip seal	without lip seal
Lining	without lining
Position of plenum box	Centre
Airflow settings	Alternating horizontal
Extended border – diffuser face	Without extended border
End pieces	without end finishes
Surface	anodised, E6-C-0 (no colour)
Colour of air control blades	Similar to RAL 9005 (jet black)

Downloads

product information

Product data sheet PURELINE35

PURELINE35_PD_2026_01_06_DE_en Product data sheet 8,8 MB pdf

certificates

Declaration of hygiene conformity PURELINE35

PL35_HC_2024_05_DE_en Hygiene certificate 1,3 MB pdf
Environmental Product Declaration Pureline35

Pureline35_EPD_2024_03_DE_en Environmental Product Declarations 350 KB pdf
Non-CE Manufacturer's statement PURELINE35

PL35_NotCE_2022_02_08_14_37_59_DE_en Certificate 1,4 MB pdf

operation manuals

Installation manual PURELINE35

PL35_IM_A00000074951_V2_2024_02_GB_en Installation manual 2,3 MB pdf

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PURELINE35

The clean solution for significantly less ceiling contamination

General information

TECHNICAL INFORMATION

Downloads

product information

Product data sheet PURELINE35

certificates

Declaration of hygiene conformity PURELINE35

Environmental Product Declaration Pureline35

Non-CE Manufacturer's statement PURELINE35

operation manuals

Installation manual PURELINE35

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