HIDRIA Ventilating grilles, Ventilating valves

Ventilating grilles are designed for all types of lowpressureair conditioning, heating and ventilation systems with built in air flow and throw distance control as well as regulation of discharge angle. They can be used for both, supply air and exhaust air applications. Ventilating valves are designed to extract air from sanitary rooms and other premises and can be also used in low pressure airconditioning systems with air flow control.

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01

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Ventilating grilles are designed for all types of low-pressure-

air-conditioning-, heating- and ventilation systems with built

in air low- and throw distance control as well as regulation

of discharge angle They can be used for both, supply air

and exhaust air applications.

Ventilating valves are designed to extract air from sanitary

rooms and other premises and can be also used in low

pressure air-conditioning systems with air low control.

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Aluminium and steel ventilating grilles, stainless steel grilles

JRU-6 JRU-5

Ventilating valves and staircase swirl diffusers

Special grilles (Grease traps, Filter grilles, Linear grilles)

Ceiling grilles

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Page

Aluminium grilles AR-3, AR-4, AR-4P, AR-4V, AR-5, AR-6,

Aluminium and steel grilles AR-13, JR-3, JRP-3, AR-14,

Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8; RR-1,

3, 5, 6; SK-2, 3, 4, 9 without ceiling effect

Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8

3, 5, 6; SK-2, 3, 4, 9 without ceiling effect

Page

Aluminium grilles AR-6, AR-7 with ceiling effect

Aluminium grilles AR-6, AR-7, AR-8, AR-9 without ceiling effect

Aluminium and steel ceiling grilles SR-1, SR-2, SR-3,

■ Legend of symbols

proiles, aluminium sheet or

aluminium casting

Element is intended to be built in

RAL

EU

Element is powder painted in

stan-dard RAL 9010 colour Other desired

colour is to be speciied in the order

Element for air conditioning of rooms with loor to ceiling heights room up

to 4 m

Element is intended for air iltration

The ilter of class … is built in

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AIRAL 9010

• Fixed horizontal blades

• Visible screw installation

• Preferably for return air

AR-4

• Visible screw installation or bars

• Possible installation of AR-4P

counterframe

• Suitable for pressure equalising

between the rooms

• To some extent blocks the light and

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AIRAL 9010

R

-H/B

H/B 12.5

12.5

AR-5

• Special screen made of PVC

• Frame is made of aluminium

• Visible or hidden screw installation

AR-6, AR-7

• For wall installation

• Type AR-6: 0° ixed blades

AR-8, AR-9

• For loor installation

• Grille insert can be removed for

cleaning purpose

Aluminium grilles can be anodised in the following colours:

• Standard: Natural aluminium colour (C0)

• Upon customer’s request: golden (C3)

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Ordering key

AR-19

• For air exhaust

• Frame and screen made of anodized

F Registers (see page 27)

2 Non-visible installation with subframe and screw lock

v Visible screw installationAR-3/2-F B x H

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• For loor installation

• Blades under 90°angle

Aluminium grilles can be anodised in the

following colours:

• Standard: Natural aluminium colour (C0)

• Upon customer’s request:

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RAL 9010

CDSt

AI

RAL 9010

CDSt

AI

RAL 9010

CDSt

AI

RAL 9010

CDSt

• Steel sheet powder painted in standard RAL 9010 colour or aluminium anodised extruded proiles

• JRP-3: galvanised steel sheet

■ Aluminium and steel grilles

F Registers F, S, T

V Visible screw installation

2 Hidden screw installationV2 Visible screw installation + installation frame

3 SpringAR-13/2-F B x H

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• Stainless steel AISI 304

(BA – polished, high gloss)

RR-3

RR-6

• Individually adjustable vertical blades

■ Stainless steel grilles

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Grille standard dimensions and cross-sections (m²) for AR-13, AR-14, JR-3, JR-4, RR-5, RR-6:

Grille standard dimensions and cross-sections (m²) for AR-17, AR-18, JR-7, JR-8, RR-1:

22532542552562582510251225

Standard dimensions for RR-3:

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Ventilating curved grilles are designed for

all types of low-pressure- air-conditioning,

heating and ventilation systems with built

in air low and throw distance control

JRU-6 also has built-in regulation of discharge

angle They can be used for both, supply

air and exhaust air applications

Description

-el and powder-coated in RAL 9010 Upon

customers request they can be made of

galvanised or stainless steel or painted

in any other RAL colour Both types are

available in concave or convex version

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• For circular ducts

• ASK-2, ASK-3, ASK-4: aluminium type

AICD

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V Visible screw installation Grille type

ASK Aluminium grilles

SK Steel grillesSKP Galvanised steel grillesSK-2 / V-F B x H

B1 = B-27H1 = H-27

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B1 1

5

B1 4

SR-1, SR-2, SR-3, SR-4

• Fixed blades

• Foamy sealing strip around the frame

• Two-way air supply

■ Steel ceiling grilles

St

RAL 9010

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F2 Registers (see page 27)

V Visible screw installationV2 Visible screw installation+installation frame

SR Steel grillesASR Aluminium grillesSRP Galvanised steel grillesSR-1/V-F2 B x H

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H/B 25

2

B1 2

B1

3 3

4

SR-5, SR-6, SR-7, SR-8

• Individually adjustable blades

• Visible or hidden installation

• Four-way air supply

■ Aluminium ceiling grilles

AIRAL 9010

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V Visible screw installation

2 Non-visible screw installationV2 Visible screw installation + installation frame

Grille typeSR-5/V-F B x H

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H2/B2 H/B

H/B H2/B2

27(28)* H1/B1

H2/B2 H/B

■ Ventilating grilles installation

• Wall installation with built-in frame and hidden ixing (lock)

The list of grilles and their designation:

RR-1/2, RR-3/2, RR-5/2 and RR-6/2

* Dimension (28) is valid for following grilles:

AR-5/2, AR-6/2, AR-7/2, AR-19/2, SR-(5-8)/2

• Wall installation with built-in frame and visible ixing

RR-1/V2, RR-3/V2, RR-5/V2, RR-6/V2, SR-(1-4)/V2

AR-3/V2, AR-4/V2, AR-5/V2, AR-6/V2, AR-7/V2, SR-(5-8)/V2

• Installation on wall or duct with screw-type installation

frame and hidden ixing (lock)

RR-1/2, RR-3/2, RR-5/2 in RR-6/2

AR-5/2, AR-6/2, AR-7/2, AR-19/2, SR-(5-8)/2

• Installation on wall or duct with screw-type installation frame

and visible ixing

RR-1/V2, RR-3/V2, RR-5/V2, RR-6/V2, SR-(1-4)/V2

AR-3/V2, AR-4/V2, AR-5/V2, AR-6/V2, AR-7/V2, SR-(5-8)/V2

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H/B H1/B1

AR-3/V, AR-5/V, AR-6/V, AR-7/V, AR-19/V

• Installation of SK-2,3,4,9 grilles directly in the round duct

with visible screw-ixing

Mounting of grilles without installation frame

Visible screw installation / V

Mounting of grilles with installation frame

The installation frame may be mortar-mounted (in concrete or

brick walls) or ixed with screws (walls, ceilings, ducts, …)

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Hidden ixing / 3 (spring)

Warning: only for wall installation

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Register has wide counter-directional blades which can be moved

with screw-driver via the gear wheel It is used to control the air

low volume.Blades are made of plastics

S

Register has ixed delector and slider which opens and closes

the slots Due to inclined delection, air volume damper S is

particularly useful for longer grilles, because air low is evenly

distributed throughout the grille

PP

Perforated sheet steel (35 %) is used to split the air jet

Unfavou-rable is increased noise

T

Register has ixed delector and slider which opens and closes

the slots It isused to control and delect the air low from the

duct

■ Registers

When adjusting the system, desired operating conditions are

obtained by the means of ventilation elements control Registers

are installed for additional air volume control, thus inluencing

air velocity and throw distance as well All types of registers,

except type of register F, are made of sheet steel and corrosion

protected with dipcoat processing in blackwater soluble colour

Upon customer´s request registers can be made of galvanised

sheet steel and coloured in any colour Typ of register F is made

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Register has wide counter-directional blades which can be

mo-ved with screw-driver via the gear wheel It is used to control the

air low volume Blades are made of black plastics

Set-up of different registers

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Ventilating grilles/registers combinations

perforated sheet steel

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Discharge or inlet air low volume is determined via air velocity

measuring at the effective area with horizontally positioned

blades

AR-6, 7 AR-8, 9

RR-5 SK-4 ASK-4

RR-1 SK-3 RR-6 ASK-3

SK-2 ASK-2 SK-9

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225 325 425 525 625 825 1025 1225

1 1.5 2 3

4 5 6 7 8 10

Throw distance L (m) 20

15

10 8 7 6 5 4

0.2 0.3

0.4 0.5 0.75 1.0

1.5

1.0 0.9

Air jet width b

Chart for determining the size, induction and temperature of the air low

valid for B/H ≤ 12 – fully opened blades

Deinition of Symbols

Q (m³/h) Air flow

L (m) Throw distance

Vef (m/s) Effective discharge air velocity

VL (m/s) Max air velocity at the throw distance L

Δtz (K) Temperature difference between supply and

room air

Δt (K) Temperature difference between air jet and

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t

t z L 200

300 400 500 600 800 1000 1500 2000 3000 4000

1 1.5 2 3 4 5 6 7 8 10

20 15

10 8 7 6 5 4

0.2 0.3 0.4 0.5 0.75 1.0

1.5

1.0 0.9

4 5

150 200

300 350 400 450 500 600 700 800 900 1000 1100 1200

150 200

300 350 400 500 600 700 800 900 1000 1200

200 300 350 400 450 500 600 700 900 1000 1100 1200

250

250 250

■ Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8 without ceiling effect

(distance from ceiling ≥ 0,8 m)

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4 5 6 8 10 15

L (m)

2

4 5 6 8 10

■ Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8; RR-1, 3, 5, 6; SK-2, 3, 4, 9

without ceiling effect (distance from ceiling ≥ 0,8 m)

Table with correcting factors for horizontal air jet delection:

Chart for determining air jet delection:

Air flow velocity VL VL diag x 0.7 x 0.5Temperature factor ΔtL/ΔtZ (ΔtL/ ΔtZ diag.) x 0.7 x 0.5

Use the chart, distance from ceiling ≥ 0.8 m

and select the grille type AR-13 size B = 425, H = 125

Effective outlet air velocity Vef = 4.5 m/s

Temperature factor tL/ tZ = 0.065

Temperature difference tL = 0.065 x 5 = 0.32 °C

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225 325 425 525 625 825 1025

10 9 8 7 6 5 4 3

Air jet width b

0.2 (m)

1 1.5 2 3

4 5 6 7 8 9 10 4000

3000

2000

1500

1000 800 600 500 400

300

0.6 0.5 0.4

0.3 0.25 0.2

tL t

1.5

1.0 0.9 0.8 0.7 0.6 0.5

Throw distance L (m)

■ Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8; RR-1, 3, 5, 6 with ceiling effect

(distance from ceiling ≤ 0,3 m)

Deinition of symbols

Q (m³/h) Air flow

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100 150 200 250

20 15

10 9 8 7 6 5 4 3

1 1.5 2 3

4 5 6 7 8 9 10 4000 3000

2000 1500

1000 800 600 500 400 300

0.6 0.5 0.4

0.3 0.25 0.2

t L z t

1.5

1.0 0.9 0.8 0.7 0.6 0.5

150 200

300 350 400 450 500 600 700 800 900 1000 1100 1200

150 200

300 350 400 500 600 700 800 900 1000 1200

200 300 350 400 450 500 600 700 900 1000 1200

250

250 250

■ Ventilating grilles AR-13, 14, 17, 18; JR-3, 4, 7, 8; RR-1, 3, 5, 6 with ceiling effect

(distance from ceiling ≤ 0,3 m)

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0 5 0 1

0

5

.

0

1 1.5 2 2.5

4

Table with correcting factors for horizontal air jet delection:

Chart for determining air jet delection:

Air flow velocity VL VL diag x 0.7 x 0.5Temperature factor ΔtL/ΔtZ (ΔtL/ ΔtZ diag.) x 0.7 x 0.5

Use the chart, distance from ceiling ≤ 0.3 mand select the grille type JR-3 size B = 625, H = 125Effective outlet air velocity Vef = 2.8 m/sTemperature factor tL/ tZ = 0.13Temperature difference tL = 0.13 x 5 = 0.65 °C

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ef v

4 3 1

L (dB(A))

25 30 35 40 45 50

W

20

N R

25 30 35 40 45

■ Technical data for ventilating grilles

Pressure drop and sound power level diagram for grilles AR-6, 7, 8, 9, 13, 14, 17, 18, JR-3, 4, 7, 8, RR-1, 3, 5, 6 with volume control damper F and G

Fully opened blades

Table of correction factors for acoustic data

The following data are necessary to calculate the volume Q’:

2 Rooms with highly reflective walls Q’ = 0.5Q

3 Rooms with absorption walls Q’ = 2Q

Room sound attenuation diagram

Q’ (m³) Calculated volume, depending on room reflectance

Q (m³) Actual room volume

Aef Effective outlet area

Δpcel (Pa) Pressure drop

LWA (dB(A)) Sound power level

NR Max value acc to ISO

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35 40 45

30 R

35 40 45 50

ef v

■ Technical data for extracting grilles

Presure drop and sound power level for grilles AR-5, 6, 7, 8, 9, 13, 14, 17, 18; JR-3, 4, 7, 8 RR-1, 3, 5, 6 with volume control damper F

Fully opened blades

Table of correction factors for acoustic data

Aef (m²) 0.005 0.01 0.02 0.05 0.1 0.2 0.4Correction (dB(A)) NR -13 -10 -7 -3 0 +3 +6

Pressure drop and sound power level diagram for AR-3 grille with volume control damper F

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2 0

1

Distance from ventilating element (m)

Volume Q (m 3)

Effective supply air velocity diagram

The following data are necessary to calculate the volume Q’:

2 Rooms with highly reflective walls Q’ = 0.5Q

3 Rooms with absorption walls Q’ = 2Q

Room sound attenuation diagram

Q’ (m³) Calculated volume, depending on room reflectance

Q (m³) Actual room volume

Example

Q = 1000 m³/h

Aef = 0.05 m³ (from the Effective area table)

As follows from the diagram

Vef = 5.3 m/s

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225 325 425 525 625 825 1025

3000

2000

1500

1000 800

600 500 400

300

200

4

10 5

15 20

30 40

0.4 0.3

0.75 1.0

3 4 5 6 10 15 20

7 8 9 1.5

1.0 0.9 0.8 0.7 0.6 0.5

Effective discharge air velocity v ef (m/s)

■ Aluminium grilles AR-6, AR-7 with ceiling effect (distance from ceiling ≤ 0,3 m)

Chart for determing the size, induction and temperature of the air low

Q (m³/h) Air flow

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325

425

20 15 10 9 7 6 5 4 3

t tz L

0.6

0.4 0.3 0.25 0.2 0.15

0.1 0.08 0.05

10 4000 9 8 7 6 5

3000

2000 1500

1000 800

600 500 400

1.0 1.5

0.9 0.8 0.7 0.6 0.5

■ Aluminium grilles AR-6, AR-7, AR-8, AR-9 without ceiling effect (distance from ceiling ≤ 0,3 m)

Chart for determing the size, induction and temperature of the air low

valid for B/H ≤ 12

Q (m³/h) Air flow

Δtz (K) Temperature difference between supply

and room air

ΔtL (K) Temperature difference between air jet

and room temperature

i Induction rate = total airstream volume

flow / volume flow at diffuser discharge

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