Plenum box shorter than front rail, positioned in centre with one horizontal spigot

New design possibilities with white, grey and black air control blades

Horizontal airflow

Slanted airflow

Vertical airflow

PURELINE35

THE CLEAN SOLUTION FOR SIGNIFICANTLY LOWER CEILING CONTAMINATION

Perfectly integrable slot diffuser with sleek appearance – for discreet installation in the suspended ceiling

  • Very high comfort due to lower sound power levels and improved temperature and speed reduction
  • Improved energy efficiency due to lower pressure losses
  • Simple and fast installation – tool-free fastening of the front rail
  • New areas of application – including as air curtains for food counters
  • High flexibility thanks to numerous standard variants



APPLICATION

Application

  • Type PURELINE35 slot diffusers are used as supply air or extract air devices in comfort zones
  • Suitable as mixed ventilation system for many applications due to the variety of variants and high flexibility
  • Discreet integration in suspended ceilings
  • For rooms up to approx. 4 m in height (bottom edge of finished ceiling)
  • For suspended ceilings, even with low gaps, due to the low height of the plenum box
  • One-way or alternate air distribution can be adapted to the structural conditions on site
  • High induction causes rapid reduction of temperature difference and airflow velocity (with supply air)
  • For constant and variable volume flow rates
  • For supply air to room air temperature differences of –10 to ​+10 K

Special features

  • Uniform air pattern reduces dirt deposits due to induced compartment air on the ceiling
  • Horizontal, slanted or vertical supply air distribution through manually adjustable air control blades
  • Comfortable room climate due to high induction and rapid reduction of temperature differences and airflow velocities
  • High-quality appearance due to surface-treated extruded aluminium sections with anodised or powder coating according to RAL Classic colour scale
  • Face plate optimised for maximum volume flow at low sound power levels
  • Continuous linear arrangement possible for continuous visual appearance

Nominal sizes

  • LN: 600, 750, 900, 1050, 1200, 1350, 1500, ​1650, 1800, 1950 mm
  • Front rail can also be ordered in mm steps, also in intermediate lengths

DESCRIPTION

Variants

  • PL35-*: 1 to 4 slots
  • PL35-*-DF: Only front rail with B00 section and spring clip
  • PL35-*-DS: Only front rail with B00 section and screw fixing
  • PL35-*-PB: Only plenum box (for combination with DS)

  • PL35-*-PF: Combination of front rail and plenum box with fixed connection
  • PL35-*-SF: Combination of front rail and plenum box with releasable screw fixing
  • PL35-*-CS: Corner section


Position of plenum box on the front diffuser

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


Plenum box variant

  • Symmetrical plenum box with ​horizontal connection (HS)
  • Symmetrical plenum box with vertical connection (VS)
  • Asymmetrical plenum box with ​horizontal connection (HA)

Construction

Diffuser face finish

  • With anodised finish, E6-C-0, natural colour
  • P1: Powder-coated RAL 9010, pure white, ​gloss level 50 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %
  • P1: Powder-coated in additional ​RAL CLASSIC colours, gloss level 70 %

Attachments

  • D: Damper unit for volume flow rate balancing
  • LS: Lip seal
  • L: Internal lining
  • EP: Two end plates
  • EA: Two end angles


The end plates or end angles of individual devices are already mounted at the factory. Either end plates or end angles can be used as the end piece.

Accessories

  • EP: Two end plates
  • EA: Two end angles


For devices that are mounted in a continuous linear arrangement, the end plates or end angles must be ordered separately and installed on site. 2 Alignment plates for connecting the slot diffusers to each other are supplied loose with each slot diffuser without a factory-fitted end piece.

Construction features

  • Spigot matching round ducting according to EN 1506 or EN 13180
  • 4 suspension points on the plenum box for fixing to be performed by others
  • Manually adjustable air control blades with detent for defined adjustment of the air distribution

  • Factory-set air distribution, manually adjustable on site
  • Spigot with bead for lip seal (only for accessories with lip seal)
  • Front rail available in mm steps between 600 and 1950 mm
  • If the front rail is longer than the plenum box, the protruding areas of the front rail are covered at the rear
  • Plenum boxes only available in nominal lengths
  • Extract air variant with air control blades optionally possible 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

Materials and surfaces

  • Face plate made of extruded aluminium section
  • Air control blades made of ABS plastic, to UL94, 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 of mineral wool and closed cell vinyl foam
  • Face plate with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated colour according to ​RAL Classic
  • Air control blades similar to RAL 9005, black
  • G: Air control blades similar to RAL 9006, grey
  • W: Air control blades similar to RAL 9010, white



Mineral wool

  • Mineral wool faced with glass fibre fabric on the surfaces in contact with the air, erosion-resistant up to 20 m/s
  • According to EN 13501, material classification A1, non-flammable
  • RAL quality mark RAL-GZ 388
  • Hygienically safe due to high biosolubility, according to TRGS 905 and EU Directive 97/69/EC
  • Inert to the growth of fungus and bacteria

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to ​EN ISO 5135
  • Compliant with VDI 6022

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning according to VDI 6022

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

Functional description

Slot diffusers allow the supply air of ventilation and air conditioning systems to flow horizontally, obliquely or vertically into the room.

The flow takes place with high induction of indoor air and consequently with a rapid reduction of airflow velocity and temperature difference between supply air and indoor air.

The result is mixed flow air distribution for comfort zones with good room purging and low turbulence levels in the occupied zone.

Type PURELINE35 slot diffusers are factory fitted with manually adjustable air control elements.

Different airflow directions allow adaptation to different local conditions at any time.

Horizontal air distribution takes place with a one-way or alternating flow.

Heating operation with vertical flow is possible, as is a slanted supply air distribution.

The supply air to room air temperature difference can be -10 to +10 K.

A damper unit (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 length

600 – 1950 mm, in increments of 150 mm

Number of slots

1, 2, 3 or 4

Neck extension0, 30, 55, 80, 105, 129

Minimum volume flow rate at ∆tz = -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


The quick sizing table gives a good overview of the possible volume flow rates and the corresponding sound power levels and differential pressures.

Sizing with our Easy Product Finder design programme will provide the exact values, taking all parameters into account.

The quick sizing table with one spigot applies up to 1200 mm, from 1350 mm and larger two spigots are taken into account.





Slot diffusers of Type PURELINE35 with individually, manually adjustable air control blades and 1, 2, 3 or 4 slots.

Air distribution optionally horizontal alternating, alternating angled, vertical, one-way horizontal left or one-way horizontal right possible.

The slot diffusers can be used for supply or extract air and are intended for installation in the suspended ceiling. Ready-to-install component consisting of the face plate with optional black, grey or white air control blades.

Variants with plenum boxes have 1 or 2 spigots which are arranged horizontally or vertically for symmetrical plenum boxes and horizontally for asymmetrical plenum boxes.

The plenum boxes all have 4 suspension lugs for suspension.

The connection between the face plate and plenum box is made as a fixed or detachable connection.

The spigots are suitable for circular ducts according to EN 1506 or EN 13180. Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special features

  • Uniform air pattern reduces dirt deposits due to induced compartment air on the ceiling
  • Horizontal, slanted or vertical supply air distribution through manually adjustable air control blades
  • Comfortable room climate due to high induction and rapid reduction of temperature differences and airflow velocities
  • High-quality appearance due to surface-treated extruded aluminium sections with anodised or powder coating according to RAL Classic colour scale
  • Face plate optimised for maximum volume flow at low sound power levels
  • Continuous linear arrangement possible for continuous visual appearance

Materials and surfaces

  • Face plate made of extruded aluminium section
  • Air control blades made of ABS plastic, to UL94, V-0, flame-retardant
  • Plenum box made of galvanised sheet steel
  • End plates and end angles made of aluminium
  • Lip seal made of rubber
  • Lining of mineral wool and closed cell vinyl foam

  • Face plate with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated colour according to ​RAL Classic
  • Air control blades similar to RAL 9005, black
  • G: Air control blades similar to RAL 9006, grey
  • W: Air control blades similar to RAL 9010, white


Mineral wool

  • Mineral wool faced with glass fibre fabric on the surfaces in contact with the air, erosion-resistant up to 20 m/s
  • According to EN 13501, material classification A1, non-flammable
  • RAL quality mark RAL-GZ 388
  • Hygienically safe due to high biosolubility, according to TRGS 905 and EU Directive 97/69/EC
  • Inert to the growth of fungus and bacteria

Construction

Diffuser face finish

  • With anodised finish, E6-C-0, natural colour
  • P1: Powder-coated RAL 9010, pure white, ​gloss level 50 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %
  • P1: Powder-coated in additional ​RAL CLASSIC colours, gloss level 70 %

Technical data

  • Nominal lengths: 600 – 1950 mm in steps of 150 mm
  • Number of slots: 1, 2, 3 or 4
  • Minimum volume flow rate at ∆tz = –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

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

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

Order example: PL35-1-S-PF-HS/1200x1200x98/1

Number of slots

1

System

Supply air

Variant

With fixed connection between plenum box and face plate

Plenum box variant

Standard plenum box with horizontal connection

Nominal size

Front rail 1200 mm, plenum box 1200 mm, spigot diameter 98 mm

No. of spigots

1

Damper unit for volume flow rate balancing

Without

Lip seal

Without

Lining

Without

Position of plenum box

Central position

Air pattern

Alternating horizontal

Extended border

Without

End pieces

Without

Surface

Anodised, E6-C-0, natural colour

Colour of air control blades

black


Order example: PL35-2-S-SF-HS/1200x1050x123/2-D-LS-L-LE/AS/B00/EA/P1-RAL 9010/W

Number of slots

2

System

Supply air

Variant

With releasable connection between plenum box and front rail

Plenum box variant

Standard plenum box

Nominal size

Front rail 1200 mm, plenum box 1050 mm, spigot diameter 123 mm

No. of spigots

2

Damper unit for volume flow rate balancing

With

Lip seal

With

Lining

With

Position of plenum box

Left side

Air pattern

Alternating angled

Extended border

With

End pieces

With end angle

Surface

Powder-coated RAL 9010, pure white, gloss level approx. 50 %

Colour of air control blades

white


Order example: PL35-2-E-DF/1200/V/B00/EP/P1-RAL 9006/G

Number of slots

2

System

Extract air

Variant

Diffuser face with extended border and spring clip

Plenum box variant

No plenum box

Nominal size

Diffuser face 1200 mm

No. of spigots

Without

Damper unit for volume flow rate balancing

Without

Lip seal

Without

Lining

Without

Position of plenum box

No plenum box

Air pattern

Vertical

Extended border

With extended border

End pieces

With end plate

Surface

Powder-coated RAL 9006, white aluminium, gloss level approx. 30 %

Colour of air control blades

grey


Order example: PL35-1- -CS/100x100x90

Number of slots

1

Variant

Corner section

Dimensions

Leg dimension E: 100 mm Leg dimension F: 100 mm Angle: 90°

Extended border

Without

Surface

Anodised, E6-C-0, natural colour

Colour of air control bladesBlack, similar to RAL 9005


Order example: PL35-2- -CS/150x250x45/B00/P1-RAL 9016/W

Number of slots

2

Variant

Corner section

Dimensions

Leg dimension E: 150 mm Leg dimension F: 250 mm Angle: 45°

Extended border

With

Surface

Powder-coated RAL 9016, gloss level 70%

Colour of air control bladesWhite, similar to RAL 9010

Variants, Dimensions and weight

  • VARIANTS
  • DIMENSIONS AND WEIGHT

Nominal length

Nominal length  L₁
Nominal length
mm

600

600

750

750

900

900

1050

1050

1200

1200

1350

1350

1500

1500

1650

1650

1800

1800

1950

1950


Variant

Variant With extended border
Variant  P
Variant  mm

PL35-1

56

PL35-2

82

PL35-3109
PL35-4136

Dimensions [mm]

No. of spigotsNominal length  L₁ L₃

1

600

600

595

1

750

750

745

1 or 2

900

900

895

1 or 2

1050

1050

1045

1 or 2

1200

1200

1195

2

1350

1350

1345

2

1500

1500

1495

2

1650

1650

1645

2

1800

1800

1795

2

1950

1950

1945


Variant

VariantB3B3H4H4RAAOO
Variant HS/HAVSHS/HAVSRHS/HAVSPF-HASF-HA

PL35-1

100

138

150150126 + Y1401787264

PL35-2

138

160

180150141 + Y1782008375

PL35-3

176

176

198150150 + Y2162169486

PL35-4

214

214

230150166 + Y25425410697
Neck extension Y = 0 / 30 / 55 / 80 / 105 / 129


Variant

Variant  ∅D C

PL35-1

98/123

50/48

PL35-1

123/138

48/42

PL35-2

138/158

42/50

PL35-2

158/198

50/50


Weights

VariantNumber of slots
kg/m

Diffuser face

1-/2-/3-/4-slot

0,8/1,2/1,6/2,1

Plenum box HS/HA

1-/2-/3-/4-slot

3,3/3,9/4,6/5,2

Plenum box HS/HA+L

1-/2-/3-/4-slot

4,0/4,7/5,5/6,2

Plenum box VS

1-/2-/3-/4-slot

3,7/3,9/4,1/4,3

Plenum box VS+L

1-/2-/3-/4-slot

4,5/4,7/4,9/5,2

Total weight = weight of diffuser face + weight of plenum box


Variant

Variant Without extended border With extended border 
Variant  P
Variant  mm

PL35-1

35

55

PL35-2

62

82

PL35-389109
PL35-4116136

E F W

Min. entry value

100

100

45°

Max. entry value

300

300

175°


Variante

Variant Without extended border With extended border 
Variant  P
Variant  mm

PL35-1

35

55

PL35-2

62

82

PL35-389109
PL35-4116136

Installation examples, Installation details, Commissioning, Basic information and nomenclature

  • INSTALLATION EXAMPLES
  • INSTALLATION DETAILS
  • COMMISSIONING
  • BASIC INFORMATION AND NOMENCLATURE

Installation and commissioning

  • Preferably for clear room heights up to 4.0 m
  • Flush ceiling installation
  • Duct connection horizontal or vertical

  • For face plates with shorter plenum boxes and non-active diffusers, there is a slot cover on the rear
  • For continuous linear arrangement, connect face plates to one another with alignment plates
  • If necessary, carry out volume flow rate balancing on the damper unit

  • Suitable fixing material for fixing the slot diffusers must be provided by others


The illustrations are schematic and serve to better understand the installation details.

Volume flow rate balancing 

Adjust the air control blades in the area of the spigot so that there is a passage for a screwdriver.

Volume flow rate balancing

If several slot diffusers are assigned to one volume flow controller, it may be necessary to balance the volume flow rates.

  • Slot diffusers with plenum box and damper unit (variant -D): The flow adjustment damper can also be operated when the face plate is mounted.

Principal dimensions

ØD [mm]

Outer diameter of the spigot

C [mm]

Length of the spigot

m [kg]

Weight

L₁ [mm]

Length of front rail

L₃ [mm]

Length of plenum box

P [mm]

Width of slot section

H₄ [mm]

Height of plenum box

B₃ [mm]

Width of plenum box


Nomenclature

LWA [dB(A)]

Sound power level of the air-regenerated noise, ​A-rated

V [m³/h] and [l/s]

Volume flow rate

Δtz [K]

Supply air to room air temperature difference, supply air temperature minus room temperature

Δpt [Pa]

Total differential pressure

Downloads

product information

certificates

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Thank you for your message!

Visual contact Visual contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265