twist nozzle dw-v2--dr

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4/2

Jet nozzle, type DW-N2

Swivel jet nozzle, type DW-V2

Twist nozzle, type DW-V2-....-DR

mostendorp

New type code

Preliminary remarksIt is advisable to use nozzles to air-condition large spaceswhere the supply air is to be discharged from the spacesurrounding walls or from the parapet of a gallery.

The supply air jet pattern depends on the jet velocity,the temperature difference between supply air and in-door air, and the discharge angle; in many cases theangle can be predetermined.Adjustable nozzles make it possible to adapt the jetdischarge angle to the respective operating conditions.

With varying cooling and heating loads it is advisable touse a motorized adjusting system.

Jet nozzleJet nozzles are recommended where long throws arerequired while high acoustic requirements are to bemet.The jet nozzle is available in 6 nominal dimensions, inadjustable or non-adjustable design, for throws rangingfrom 3 to 50 m.

Twist nozzleTwist nozzles are recommended where small penetra-tion depths are required for the supply air.The built-in twist element spreads out the air jet, thusconsiderably reducing its penetration depth.It is possible to combine twist nozzles with jet nozzleswithin one duct system.

Giving due consideration to the design parameters it ispossible to supply fresh air to large assembly halls,exhibition halls, airport terminals, shopping centres etc.using jet nozzles and even twist nozzles, in compliancewith the comfort requirements.

Nominaldimension

Jet nozzleAir volume flow rate

Twist nozzleAir volume flow rate

min max min max

l/s m3/h l/s m3/h l/s m3/h l/s m3/h

DN 60 11 40 33 120 — — — —

DN 80 21 75 61 220 10 35 40 145

DN 120 46 165 136 490 22 80 90 325

DN 150 71 255 211 760 36 130 142 510

DN 200 125 450 378 1360 63 225 250 900

DN 250 197 710 589 2120 99 355 395 1420

Construction design and functionFig. 1, left, shows the non-adjustable jet nozzle, type

DW-N2. It is made up of the nozzle body 1a, featuring

optimized air flow pattern and sound performance, with

a flange 1b on the air intake side.

Fig. 1, middle, shows the swivel jet nozzle, type

DW-V2. Its main component is the nozzle 1 housed in

the hemispheric casing 2. This nozzle, which is linked

to a fastening flange 3, can swivel by ± 30° around the

horizontal swivel axis 4.

It is also possible to alter the air discharge direction

sideways since the fastening flange 3 can be adjusted

by ± 30° in the vertical plane, which modifies the position

of the swivel axis. The flange is concealed by a removable

collar 5.

As an option the swivel jet nozzle can be fitted with an

electric servomotor 11 (see page 6) to ensure automatic

swivelling.

Fig. 1, right, shows the twist-type nozzle which incor-

porates a twist element 16 in the nozzle intake.

2

Jet nozzle and twist nozzle

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Jet nozzlemounted in theparapet of a gallery

Jet nozzlesmounted in twoopposite walls

Jet nozzlecombined witha twist nozzle,mounted in a wall

Fig. 2: Examples of arrangement

Jet nozzle,type DW–N2

øD

N

1a

1b

Jet nozzle,type DW–V2

Twist nozzle,type DW–V2–...–DR

12

3

5

4

øD

N

30°

30°

Sw

ivel

rang

e

12

3

5

4

16

�

Fig. 1: Construction design

Jet nozzle

With throws ranging from 3 to 50 m, and taking accountof the requisite mounting height and minimum centre dis-tance between the nozzles, the layout of jet nozzles foractivity level � will be based on the following temperaturedifferences between supply air and indoor air:

� – 8 K when cooling,� + 6 K when heating.

Nominal diameter DN 60 DN 80 DN 120 DN 150 DN 200 DN 250

Min. mounting heightH in m

2.5 2.8 3.2 3.5 3.9 4.2

Max. mounting heightH in m

4 4 6 8 10 10

Min. nozzle centredistance 1)

tmin in m

0.18 0.24 0.36 0.45 0.6 0.75

We recommend limiting the maximum specific volume

flow rate �VSp max to 139 l/s (500 m3/h) per metre of nozzle

row and selecting low duct air velocities (� 2.5 m/s) so

as to take advantage of the excellent acoustic properties

of the jet nozzles.

The diagrams on pages 10 and 11 show the induction

ratio, the jet deflection as well as the reduction of jet

velocity and jet temperature in relation to the jet path.

The discharge direction of the swivel jet nozzle can

be readjusted when tuning the HVAC system. In the

cooling mode it is advisable to have a jet angle of 10°

upwards.

1) Required to comply with comfort requirements; at specifically high air flow

rates it is necessary to keep to tmin and to stagger several nozzles

Twist nozzle

For short throws ranging from 1 to 17 m twist nozzlesare suitable for the following mounting heights andminimum centre distances for activity level � as well asthe following temperature differences between supplyair and indoor air: � – 8 K when cooling,

� + 6 K when heating.

Nominal diameter DN 80 DN 120 DN 150 DN 200 DN 250

Min. mounting heightH in m

2.8 3.2 3.5 3.9 4.2

Max. mounting heightH in m

4 6 8 10 10

Min. nozzle centredistance 1) tmin in m

0.3 0.45 0.6 0.75 1.0

We recommend limiting the maximum specific volume flow

rate �VSp max to 139 l/s (500 m3/h) per metre of nozzle row.

3

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Jet nozzle and twist nozzleSpecifications for layout and selection

Fig. 3: Jet dispersion with jet nozzle Fig. 4: Jet dispersion with twist nozzle

2520151051

DN

120

DN15

0

DN20

0

DN250

DN

80

8

7

6

5

3

4

2Dis

char

geve

loci

tyu

inm

/s

Twist nozzle

W in mThrow

50403020102

10

9

8

7

6

5

4

11

12

Dis

char

geve

loci

tyu

inm

/s

W in mThrow

Jet nozzle

DN12

0

DN15

0

DN200

DN 250

DN

60

DN

80

Fig. 5: Throws of jet nozzle and twist nozzle correlated

with the discharge velocity

Connection typesa) Non-adjustable jet nozzle, type DW-N2

Instructions for mounting and adjusting the

nozzles1)

1. Connection to plenum or air duct

a) Non-adjustable jet nozzle

Fasten the nozzle to the plenum 12 or the air duct

using the flange 1b.

b) Swivel jet nozzle

After removing the collar 5 insert the jet nozzle into the

duct wall cutout and fasten it with adjusting screws 6

(see illustration on page 6).

By turning the fastening flange through maximum ± 30°

it is possible to alter the position of the swivel axis and

thus to adjust the air discharge direction sideways. A

scale 7 with 10-degree division at the slot segments 3a

facilitates accurate adjustment.

Then secure the nozzle at the fastening points 8. The

mounting surface should be level.

1) See key on page 6

b) Swivel jet nozzle, type DW-V2, and

twist nozzle, type DW-V2-....-DR

2. Insertion into pipes to DIN 24145,

connection type R

For connection type R both the swivel and the

non-adjustable jet nozzles are fitted with a push-in

end 9 and a seal.

3. Connection to shaped parts to DIN 24147,

connection type F

For connection type F both the swivel and the

non-adjustable jet nozzles have a slip-on end 10

matching shaped parts to DIN 24147.

Remark on connection types R and F:

To adjust the discharge direction sideways with swivel

jet nozzles provided for connection type R or F, turn the

push-in or slip-on end of the nozzle. If the relevant end

is fitted with a seal, a customary lubricant can be used

to help turn the nozzle, in particular with large connection

diameters.

Once adjustment has been completed, the nozzle

should be additionally secured by screws.

4

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Jet nozzle

Fig. 6:

Type DW-N2 with flange for

connection to plenum or duct

Fig. 7: Type DW-N2

Left: with push-in end and seal for pipes

to DIN 24145 (spiral-seam pipes);

Right: with slip-on end for shaped parts to DIN 24147

Fig. 8:

Type DW-V2 with flange

and collar for connection

to plenum or duct

Servomotors are optionally

available for all connection

types

Fig. 9: Type DW-V2

Left: with push-in end and seal for pipes

to DIN 24145 (spiral-seam pipes);

Right: with slip-on end for shaped parts to DIN 24147

Examples of mounting of jet nozzle DW-N2

Examples of mounting of swivel jet nozzleDW-V2 and twist nozzle DW-V2-...-DR

5

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Jet nozzle

øD

N

L

Connection type Rto push into a pipe

Connection type F,to slip onto shapedparts, shown withbend

Connection type Kfor plenum or duct

øD

Nø

DN

Connection type Kfor plenum or duct

Connection side bevelled taking account of the predetermineddischarge angle ��

�

12

øD

N

Connection type R

Supply air duct located behind a wall; setting of predeter-mined discharge angle through tilt of shaped part in supply

air duct

1214

12

�

L12

9

1413

øD

N�

Fig. 12: Type DW-V2 in a library at Maastricht/NL

Fig. 11: Type DW-N2 along the ceiling of an exhibition

hall of “Neue Messe Leipzig”

Fig. 10: Type DW-N2 at Atrium Medisch Centrum,

Heerlen/NL

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Jet nozzleDimensions of DW-N2, DW-V2 and DW-V2-...-DR

Section B - B

2

53b

3c

6

12

øD

N

øD

5-V

30°

30°

Sw

ivel

rang

e

Hemisp

here5

12

11 1

2

Connection to a plenumType DW–V2–DN__–K

H2 max

A

øD

3-V

H4

Amin

4

LM H3max

Connection to a pipeType DW–V2–DN__–R

øD

5-V

øD

4-V

øD

N

30°

30°

Sch

wen

k-be

reic

h

Sw

ivel

range

Hemisp

here

H5 H4

H5 H4

9

9

9a

13

1014

Connection toa shaped partType DW–V2–DN__–F

H6 H4

H5 H4

øD

5-V

øD

N

30°

30°

Sch

wen

k-be

reic

h

Sw

ivel

range

Hemisp

here

øD

6-V

(insi

de)

Connection to a plenumType DW–N2–DN__–K

øD

N

øD

5-N

øD

3-N

H

12

1a

1b

Connection to a pipeType DW–N2–DN__–R

øD

N

1a

øD

4-N

9

13

H1 H

Connection toa shaped partType DW–N2–DN__–F

øD

N

1a

øD

6-N

H1 H

14

10

8 11

D2

View A:Collar 5 removed

30°

45°

30°

73a

3

B

B

6

15

15

15

15

Key for all pages

1 Nozzle

1a Nozzle body

1b Flange

2 Hemisphere

3 Fastening flange

3a Slot segment 4)

3b Brush seal

3c Flange seal

4 Swivel axis

5 Collar

6 Adjusting screw 4)

7 Scale of degrees 4)

8 Fastening point 4)

9 Push-in end

10 Slip-on end

11 Electric servomotor

12 Plenum

13 Connection pipe

14 Shaped part

15 Locking screw

16 Twist element

Size

Non-adjustable jet nozzle Swivel jet nozzle and twist nozzle 5)

ø D3-N1)

mmø D4-N

mmø D5-N

mmø D6-N

mmH

mmH1

mmGK kg

GR,Fkg

ø D2

mmø D3-V

1)

mmø D4-V

mmø D5-V

mmø D6-V

mmH2 max

mmH3 max

mmH4

mmH5

mmAmin

mmLM

3)

mmG2)

kg

DN 60 118 139 148 140 8050

0.1 0.3 168 155 179 186 180 79 44 12 50 315 238 1

DN 80 152 179 182 180 94 0.13 0.4 207 188 223 230 224 94 55 14 50 321 244 1.3

DN 120 238 249 268 250 132 70 0.4 0.9 295 274 314 321 315 135 78 15 70 335 258 2.6

DN 150 300 314 330 315 158

90

0.6 1.4 376 350 399 406 400 165 96 15 90 346 269 3.9

DN 200 410 399 440 400 207 1 2 476 453 499 506 500 206 130 22 90 364 287 5.4

DN 250 500 499 530 500 246 1.4 2.6 571 543 599 606 600 261 150 22 90 389 312 7

1) Wall or duct cutout 4) Only for connection to a plenum

2) Weight without motor; motor weight = 0.9 kg 5) Twist nozzle available in DN 80 and over

3) For Landis & Staefa motor of type GDB161…/GLB161… not considering the connection cable

7

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Jet nozzleLayout sheet for type DW-N2

10 20 30 40 50 100120

DN 120

DN 80

DN 60

4 10 20 30

DN 120

DN 80

DN 60

43 5 10 20 25

DN 60

DN 80

DN 120

V

l/s

AV

l/s

AV

m /h

A3

Throw W in m Sound power level Lin dB(A) ref. 10 W

WA-12

Total pressure loss p in Pa� t

500

400

300

200

100

50

40

100

50

40

30

20

10

140

100

50

40

30

20

10

140

2000

1000

500

400

300

2500

20 30 40 50 120100

DN 250

DN 200

DN 150

10 20 30 35

DN 250

DN 200

DN 150

8 10 20 30 40 50

DN200

DN150

DN250

DN 150V = 70 l/smin

700

600

500

400

300

200

100

80

700

600

500

400

300

200

100

80

V

l/s

AV

l/s

AV

m /h

A3


WA-12


Note:

The diagram values for sound power level

apply for connection type K to a plenum.

With connection type R (to a straight pipe)

or F, the sound power level is 1 dB(A) higher,

and even 3 dB(A) higher with an upstream

pipe bend; see mounting examples on page 5.

The pressure loss values apply for connection

types K, R and F as well as with upstream

pipe bend.

Sound power level of type DW-N2

Nozzle volumeflow rate

Dischargevelocity

Sound power level LW in dB ref.10-12 W

LWAOctave band centre frequency

in Hz

l/s m3/h m/s dB(A) 125 250 500 1 K 2 K

DN 60222833

80100120

81012

—6

12

—1218

——12

———

———

———

DN 80405061

145180220

81012

31017

111825

——14

——14

——10

———

DN 12089

114136

320410490

81012

81622

142228

—1420

—1319

—1117

———

DN 150142178211

510640760

81012

121926

202734

—1623

—1522

—1522

——15

DN 200250315380

90011301360

81012

162430

273541

172531

122026

101824

——15

DN 250395490590

142017702120

81012

202734

273441

192633

182532

152229

—1319

50403020102

10

9

8

7

6

5

4

11

12

Dis

char

geve

loci

tyu

inm

/s

W in mThrow

DN12

0

DN15

0

DN200

DN 250

DN

60

DN

80

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Jet nozzleLayout sheet for type DW-V2

V

l/s

AV

l/s

AV

m /h

A3


WA-12


500

400

300

200

100

50

40

100

50

40

30

20

10

140

100

50

40

30

20

10

140

10 20 30 32

Nozzle modelwithout servomotorwith servomotor

ee above “Note”Also s

DN 120

DN 80

DN 60

10 20 30 40 50 100



DN 120

DN 80

DN 60

12043 5 10 20 25

DN 60

DN 80

DN 120

2000

1000

500

400

300

2500 700

600

500

400

300

200

100

80

700

600

500

400

300

200

100

80

V

l/s

AV

l/s

AV

m /h

A3


WA-12


15 20 30 40 20 30 40 50 120100

DN 250 DN 250

DN 200 DN 200

DN 150 DN 150



8 10 20 30 40 50

DN150

DN200

DN250

Nozzle modelwith and withoutservomotor

ee above “Note”Also sDN 150V = 70 l/smin

Note:

The diagram values for sound power level apply for connection type K to a plenum at a nozzle angle of inclination

� = 0°. The larger the angle of inclination �, the higher the sound power level, e.g.: � = 20° +1 dB(A)

� = 30° +2 dB(A)

With connection type R to a straight pipe with L � 3 DN or connection type F, the sound power level is 1 dB(A)

higher, and even 3 dB(A) higher with an upstream pipe bend; see mounting examples on page 5.

The pressure loss values apply for connection types K, R and F, and a nozzle angle of inclination � = 0 to 30°.

With an upstream pipe bend these values are to be raised by 5 %.

Layout example for connection to a plenum, without servomotor:

1 Supply air volume flow rate �V = 14 000 l/s

2 Requisite throw W = 20 m

3 Angle of inclination � = 20°

4 Max. perm. sound power level LWA = 25 dB(A) ref.10-12 W

From diagram:

5 Nominal size: = DN 150 selected

6 Volume flow rate �VA = 150 l/s

7 Sound power level LWA = 20 dB(A) ref.10-12 W at 0°

LWA = 21 dB(A) ref.10-12 W at 20°

8 Total pressure loss �pt � 60 Pa

9 Number Z = 93 units [from 1 : 6]

10 Discharge velocity u = 8,5 m/s50403020102

10

9

8

7

6

5

4

11

12

Dis

char

geve

loci

tyu

inm

/s

W in mThrow

DN12

0

DN15

0

DN200

DN 250

DN

60

DN

80

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Jet nozzleSound power level of type DW-V2

Angle ofinclination

Nozzle volumeflow rate

Dischargevelocity


LWA Octave band centre frequency in Hz LWA Octave band centre frequency in Hz

� l/s m3/h m/s dB(A) 125 250 500 1 K 2 K 4 K dB(A) 125 250 500 1 K 2 K 4 K

DN 60 Without motor With motor1)

0°222833

80100120

81012

101621

122024

—1621

—1419

—1116

——10

———

131924

172328

131924

111722

—1419

——12

——12

20°222833

80100120

81012

111722

152126

111722

—1520

—1217

——10

——10

142025

182429

142025

121823

—1520

——13

——13

30°222833

80100120

81012

121823

162227

121823

101621

—1318

——11

——11

152126

192530

152126

131924

101621

——14

——14


0°405061

145180220

81012

131923

132328

132125

101823

—1017

——10

———

152125

192529

172327

152125

—1317

——10

——10

20°405061

145180220

81012

142024

182428

162226

142024

—1216

———

———

162226

202630

182428

162226

—1418

——11

——11

30°405061

145180220

81012

152125

192529

172327

152125

—1317

——10

——10

172327

212731

192529

172327

—1519

——12

——12


0°89

114136

320410490

81012

162227

273336

192530

101723

—1319

——14

——10

172328

273338

202631

121823

—1419

——13

——12

20°89

114136

320410490

81012

172328

273338

202631

121823

—1419

——13

——12

182429

283439

212732

131924

—1520

——14

——13

30°89

114136

320410490

81012

182429

283439

212732

131924

—1520

——14

——13

192530

293540

222833

142025

101621

—1015

——14

DN 150 Without and with motor1)

0°142178211

510640760

81012

182429

303438

192631

142227

—1522

——14

——10

20°142178211

510640760

81012

192530

293540

212732

162227

101621

——14

——14

30°142178211

510640760

81012

202631

303641

222833

172328

111722

—1015

—1015


0°250315380

90011301360

81012

212731

293530

182430

212732

—1724

——14

——10

20°250315380

90011301360

81012

222832

303640

192529

222832

131923

——12

——11

30°250315380

90011301360

81012

232932

313740

202629

232932

142023

——12

——11


0°395490590

142017702120

81012

232933

323740

202732

232934

111926

——16

——12

20°395490590

142017702120

81012

243034

323842

222832

243034

152125

—1014

—1014

30°395490590

142017702120

81012

253135

333943

232933

253135

162226

—1115

—1115

Sound power levelThanks to its excellent acoustic properties the swivel

jet nozzle is most suitable for use in large spaces with

high acoustic requirements such as concert halls,

theatres, conference rooms, museums etc.

The sound power levels listed here apply for connection

type K to a plenum. With connection type R to a

straight pipe with L � 3 DN or connection type F, the

sound power level is 1 dB(A) higher, and even 3 dB(A)

higher with an upstream pipe bend; see mounting

examples on page 5.

1) Motor running noise < 35 dB(A)

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Jet nozzle

Temperature difference supply air/indoor air

= 30 K

��ZU–RL

6

820

10

15

0.5 1 2 3 4 5 10 12

10

20

25

30

40

50

15

678

9

4

5

3

Jet path L = 2 m

+y Heating mode

–y Cooling mode

L

��ZL-RL for heating and cooling

(hence no plus/minus sign)

4

m /h3

l/s

40 50 100 200

10 20 30 5040

DN 60

DN 80m /h3

l/s10 10020 30 5040

5040 100 200

DN 120m /h3

l/s10 100 20020 30 5040

10050 200 300 400 500

m /h3

l/s100 200 30030 5040

DN 150200100 300 400 500 1000

m /h3

l/s100 200 300 400 50050

DN 200300 400 500 1000 2000

DN 250500400 1000 2000 3000 m /h3

l/s100 1000200 300 500400

Nozzle volume flow rate VA

Jet deflection y in m

Example: Size DN 150

Nozzle volume flow rate �VA = 140 l/s

Temperature difference supply air/indoor air ��ZL-RL = +6 K (Heating)

From graph:

Jet path L = 10 m

Jet deflection y � +1.1 m after 10 m jet path

Jet deflection

DN60

DN80

DN12

0

DN15

0

DN20

0

DN25

0

Indu

ctio

nra

tioJe

t vol

ume

flow

rate

/Sup

ply

air

volu

me

flow

rate

V/V

A

Jet path L in m

11 2 3 4 5 10 20 30 40 50

2

3

4

5

10

20

30

40

50

100

� Induction ratio


Jet path L = 25 m

From graph:

Induction ratio Jet/Supply air volume flow rate �V/�VA = 50

i.e. admixture of 49-fold indoor air volume flow rate after 25 m jet path

Reduction of jet velocity1)

1) Jet velocity in the jet axis at the respective points of observation on the

jet paths

Reduction of jet temperature

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Jet nozzle

0.1

0.2

0.3

0.4

0.5

1.0

2.0

3.0

Jetv

eloc

ityu

inm

/s

68

5040

3025

20

10

15

Jet p

ath

L =4

m

DN 6020010050

l/s

m /h3

5040302012

l/s

m /h3

50 100403020

DN 8060 100 200 400

DN 120l/s

m /h3

50 1004030 200

100 200 300 400 500

DN 150l/s

m /h3

50 100 200

200 300 400 500

DN 200300 400 500 l/s

m /h3

100 200

400 500 1000 2000

DN 250300 400 500 900 l/s

m /h3

100 200

500 1000 2000 3000

Nozzle volume flow rate VA


Nozzle volume flow rate�VA = 140 l/s (u0 = 7.85 m/s)Jet path L = 20 m

From graph:

Reduction of discharge velocity u0 = 7.85 m/s to

jet velocity u = 0.4 m/s after 20 m jet path

0.1

0.2

0.3

0.4

0.5

1.0

2.0

3.0

543210.6 10 20 30

DN 60

DN 80

DN 120

DN 150

DN 200

DN 250

3 4 5 10 20 30

2 3 4 5 10 20 30

1054321.4 20 30

20 301054321

10.8 2 3 4 5 10 20

68

5040

3025

20

10

15

Tem

pera

ture

diffe

renc

eai

rje

t/ind

oor

air

inK

��

ST

R–R

L

Temperature difference supply air/indoor air in K��ZL–RL

Jet p

ath

L =4

m

Example: Size DN 150Temperature differencesupply air/indoor air ��ZL-RL = 8 KJet path L = 20 m

From graph:

Reduction of temperature difference ��ZL-RL = 8 K to ��Str-RL = 0.2 K

after 20 m jet path

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Twist nozzleLayout sheet and sound power level, type DW-V2-...-DR

1000

500

400

300

200

100

50

40

30

1600400

300

200

100

50

40

30

20

109

400

300

200

100

50

40

30

20

109

1 5432 10 20 30 40 502010 10 20 30 40 50 100 200

DN80

DN 250

DN 200

DN 150

DN 120

DN 250

DN 200

DN 120

DN80

DN 150DN

250

DN200

DN 150

DN120

DN80

V

m /h

A3

V

m /h

A3

V

l/s

A


WA-12


Sound power level of type DW-V2-...-DR

SizeNozzle volume flow rate

Dischargevelocity

Totalpressure

loss


LWA Octave band centre frequency in Hz

l/s m3/h m/s Pa dB(A) 125 250 500 1 K 2 K 4 K

DN 80

10193140

3570

110145

2468

5205088

8273846

18354349

10304147

—233442

—243441

—112939

——1829

DN 120

22446492

80160240330

2468

5184176

7263745

19334248

—273744

—213138

—223438

—122841

——1427

DN 150

3669

106142

130250380510

2468

5194177

8273847

17334249

10263846

—263341

—233541

—112841

——1629

DN 200

61125186253

220450670910

2468

5194378

9283948

17334451

12283847

—283644

—233542

—123042

——1830

DN 250

97197294395

350710

10601420

2468

5214683

11304048

18344351

13303948

—293644

—253743

—143142

——2233

Layout example:

1 Supply air volume flow rate �V = 6111 l/s

2 Maximum throw W = 8 m

3 Max. perm. sound power level LWA = 35 dB(A) ref.10-12 W

From graph:

4 Nominal size = DN 200 selected

5 Volume flow rate �VA = 156 l/s

6 Sound power level LWA � 34 dB(A) ref.10-12 W

7 Total pressure loss �pt � 29 Pa

8 Number Z = 40 units [from 1 : 5]

9 Discharge velocity u = 4.9 m/s

20151051

DN12

0

DN15

0

DN200

DN 250

DN

80

8

7

6

5

3

4

2Dis

char

geve

loci

tyu

inm

/s

Throw W in m

Features at a glanceGeneral features

� Installation in the wall of a plenum or rectangular

duct

�Connection to pipes to DIN 24145, with seal

�Connection to shaped parts to DIN 24147, with

slip-on end

�Swivel jet nozzle with concealed fastening screws

�Hose connection for manual adjustment available on

request

�Swivel jet nozzle also available with electric servo-

motor

�Material:

– Nozzle: aluminium

– Slip-on and push-in ends: galvanized sheet metal

– Twist element: black-painted sheet metal

�Colour: aluminium in natural colour or painted to RAL

�Unobtrusive placement possible, e.g. behind a facing

Jet nozzles

� Throws of 3 – 50 m

�Available in 6 sizes for volume flow rates up to589 l/s (2 120 m3/h)

�Very low sound power level

� Low pressure loss,swivel nozzle: = 1.35non-adjustable nozzle: = 1.05related to discharge velocity

Twist nozzles

� Throws of 1 – 17 m

�Available in 5 sizes for volume flow rates up to395 l/s (1 420 m3/h)

Type code

Function / Kind

V = swivel

N = non-adjustable

2 = 2nd generation

Size

DN 60, 80, 120, 150, 200, 250

Connection type Adjustment

K = to plenum M = manual

R = to pipe E = by electric servomotor

F = to shaped part

Option

DR = with twist element 1)

Examples

Jet nozzle, non-adjustable, size DN 250, for pipe

connection

Type DW – N2 – DN 250 – R

Swivel jet nozzle, size DN 250, for connection to

a plenum, adjustment by electric servomotor

Type DW – V2 – DN 250 – K – E

Twist nozzle, swivel design, size DN 250, for

connection to a shaped part, with manual adjustment

Type DW – V2 – DN 250 – F – M – DR

1) Available for swivel jet nozzle in DN 80 up to DN 250;

for non-adjustable nozzle contact us!

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Jet nozzle and twist nozzle

DW – ___ – DN___ – _ – _ – __

Jet

nozz

le––

––––

–

Fun

ctio

n/

Kin

d––

–

Siz

e––

––––

––––

––

Con

nect

ion

type

––

Adj

ustm

ent

––––

––

Opt

ion

1)––

––––

––

Fig. 13:

Type DW-N2

Fig. 14:

Type DW-V2

Fig. 15:

Type DW-V2-...-DR

Fig. 16:

Type DW-V2 with

electric servomotor

mostendorp

New type code

– Jet nozzle, type DW-N2 1)

.......... units

Non-adjustable jet nozzle for air distribution in large

spaces, with curved intake featuring good aerodynamic

and acoustic properties.

� Connection type K with fastening flange for con-

nection to plenum or air duct.

� Connection type R with push-in end for insertion

into a pipe, with seal.

� Connection type F with slip-on end for shaped

parts.

Technical data:

Throw: ............................. m

Air volume flow rate: .................. l/s (m3/h)

Size: DN ...........................

Perm. sound power level: ....................... dB(A)

ref. 10-12 W

Material:

– Nozzle: aluminium

– Push-in/Slip-on end: galvanized sheet metal

Colour of visible nozzle parts:

� Natural aluminium colour

� Painting to RAL .....................

Make: KRANTZ KOMPONENTEN

Type: DW–N2–DN____–__

1) Available with twist element on request

2) Available in DN 80 up to DN 250

– Swivel jet nozzle, type DW-V2,Twist nozzle, type DW-V2-...-DR

.......... unitsSwivel jet nozzle with curved intake featuring good aero-dynamic and acoustic properties, housed in a hemisphericcasing with opposite swivel bearings, swivel range± 30°,

jet nozzle with large jet penetration depth for air distri-bution in large spaces, discharge direction adjustable inboth the horizontal and the vertical planes,

twist nozzle2) with small jet penetration depth for airdistribution in narrow spaces, with built-in twist element,

incorporating:a fastening flange to accommodate the hemisphere andthe nozzle, turnable within slot segments to adjust therequired discharge direction; a scale with ten-degreedivision helps adjust the discharge direction accuratelywhen tuning the system.

� Connection type K with fastening flange for con-

nection to plenum or air duct, inclusive of collar to

conceal the fastening screws.

� Connection type R with push-in end for insertioninto a pipe, with seal.

� Connection type F with slip-on end for shaped parts.

Adjustment of throw� manual.� by electric servomotor.

Option

� with twist element 2), black-painted

Technical data:

Throw: ............................. m

Air volume flow rate: .................. l/s (m3/h)

Size: DN ...........................

Perm. sound power level: ....................... dB(A)

ref. 10-12 W

Material:– Nozzle: aluminium– Push-in/Slip-on end: galvanized sheet metal

Colour of visible nozzle parts:

� Natural aluminium colour

� Painting to RAL .....................

Make: KRANTZ KOMPONENTEN

Type: DW–V2–DN____–__–__–__

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nica

lalte

ratio

ns!

Jet nozzle and twist nozzleTender texts

Caverion Deutschland GmbH Krantz Komponenten Uersfeld 24, 52072 Aachen, Germany

Phone: +49 241 441-1, Fax: +49 241 441-555

[email protected], www.krantz.de

DS 12

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Jet nozzle, Swivel jet nozzle, Twist nozzle

Jet nozzle

Swivel jet nozzle

Twist nozzle

Type codeDW - __ – DN___ – __ – __ – ___ – __

Jet n

ozzle

–––

––––

–– Fu

nctio

n / K

ind –

––––

Size

––––

––––

––––

–– Op

tion

––––

––––

––––

Adjus

tmen

t –––

––––

– Su

rface

finish

–––

–––

Acce

ssor

ies –

––––

––

Function / Kind N2 = non-adjustable V2 = swivel Size 60 = DN 60 150 = DN 150 80 = DN 80 200 = DN 200 120 = DN 120 250 = DN 250

Option K = Connection to plenum (duct wall) F = for slipping onto shaped part R = for pushing into circular duct B = Collar for connection to flexible ductAdjustment (DW-V2 only)

DN 60

DN 80

DN 12

0DN

150

DN 20

0DN

250

MA = manual ● ● ● ● ● ●E22 = „Siemens servomotor, 0-10 V modulation“, stroke drive type GDB161.2E

● ● ● ● ●

E23 = „Siemens servomotor, 3-point type, 24 V“, stroke drive type GDB131.2E

● ● ● ● ●

E24 = „Siemens servomotor, 3-point type, 230 V“, stroke drive type GDB331.2E

● ● ● ● ●

E25 = „Siemens servomotor, 0-10 V modulation“, stroke drive type GLB161.2E

●

E26 = „Siemens servomotor, 3-point type, 24 V“, stroke drive type GLB131.2E

●

E27 = „Siemens servomotor, 3-point type, 230 V“, stroke drive type GLB331.2E

●

T1 = Thermostatic adjusting unit, 20-28°C ● ● ● ●

Surface finish 0 = No coating …. = Face painted to RAL ….Accessories (DW-V2 only) O = none DR = with twist element

Subject to technical alteration.

Caverion Deutschland GmbH Krantz Komponenten Uersfeld 24, 52072 Aachen, Germany

Phone: +49 241 441-1, Fax: +49 241 441-555

[email protected], www.krantz.de

twist nozzle dw-v2--dr

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