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Product spec >>> > Series ECG - Egg Crate Grilles

> Series ECG45 - 45° Egg Crate Grilles

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Recommended for:

Wall, ceiling & duct

Extract

2

Egg crate grille, 37mm bevelled flange, RAL 9010 finish

Overview

Industry standard extract grillePlastic egg crate core optional

Capable of handling huge air volumes, egg crategrilles are perfect as intakes into air handling units, andfor areas where high changeover rates are needed,paint booths, restaurant kitchens etc.

90%

7.5 kg

15.5 kg

Free area:

Mass/M sq face area:

Mass/M sq face area inc OBD:

Extruded aluminium throughout.

Plastic core optional.

Aluminium core.

Frame held together using punched in steel corners.

Core held in by frame design.

Standard - 37mm bevelled.

Optional - See page 6.

Core only.

Standard - None.

Optional - See page 5.

Minimum size single unit 100mm x 50mm.

Maximum size single unit 2900mm x 2900mm.

Central mullion on any unit above 1200mm in anydimension.

Standard - Satin anodised (AA5) frame, Mill aluminium finish core.

Optional - Polyester powder coat

Specifications:

Materials:

Construction:

Frame:

Fixings:

Sizes:

Mullions:

Finish:

Volume control

Optional rear mounted volumecontrol dampers enable easy

adjutment of airflow. The 12.7mmsquare hole size also enablesadjustment to be done from

entirely outside the grille, with ascrewdriver or key.

Exceptional air volumes

A 90% free area makes eggcrate grilles the most efficientextract terminal available fromHVC. This also means large

pressure drops and noise levelsare avoided, where other grillesmay begin to have a detrimental

effect on performance.

Egg crateGrilles

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600 x 600 ECG D FH SAA

SIZE

(Nominal / overall w x h [mm])

SERIES

DAMPER

Opposed blade............... D

FRAME TYPE - See page 40

32mm bevelled...............25mm flat........................25FOthers page 40 ..............[#]

FINISH

Satin anodised................ SAAPowder coat...............RAL/BS

30mm flatflange (Opt)

A Nominal + 30mmB 28mmC 72mmD 30mm

37mm bevelledflange (Std)

A Nominal + 45mmB 28mmC 70mmD 37mm

ECGSeries

CORE TYPE - See page 38

Fixed...............................Hinged............................. HCFully removable............... RC

FIXINGS - See page 39

Countersunk face............ FHConcealed fixings........... CFGoalpost brackets........... GBPush in clips.................... PCBurgess tile..................... BT

www.h-v-c.com for live UK stock levels

Recommended for:

Wall, ceiling & duct

Extract & supply

4

Egg crate grille 45°, 37mm bevelled flange, RAL 9010 finish

Overview

High capacity extract or supply grille45° core blocks sight and directs throw

A new innovation on the reliable Egg Crate Grille,Series ECG45 grilles use a 45 degree core to bring thesame air handling performance as standard Egg CrateGrilles, but add the desirable features of blocking sightfrom most angles, and giving directional throwcapability when used for supply.

90%

7.5 kg

15.5 kg

Free area:

Mass/M sq face area:

Mass/M sq face area inc OBD:

Extruded aluminium throughout.

Aluminium core.

Frame held together using punched in steel corners.

Core held in by frame design.

Standard - 37mm bevelled.

Optional - See page 6.

Core only.

Standard - None.

Optional - See page 5.

Minimum size single unit 100mm x 50mm.

Maximum size single unit 2900mm x 2900mm.

Central mullion on any unit above 1200mm in anydimension.

Standard - Satin anodised (AA5) frame, Mill aluminium finish core.

Optional - Polyester powder coat to any RAL / BS colour.

Specifications:

Materials:

Construction:

Frame:

Fixings:

Sizes:

Mullions:

Finish:

Volume control

Optional rear mounted volumecontrol dampers enable easy

adjutment of airflow. The 12.7mmsquare hole size also enablesadjustment to be done from

entirely outside the grille, with ascrewdriver or key.

Exceptional air volumes

A 90% free area makes eggcrate grilles the most efficientextract terminal available fromHVC. This also means large

pressure drops and noise levelsare avoided, where other grillesmay begin to have a detrimental

effect on performance.

Egg crate 45°Grilles

www.h-v-c.com 5

600 x 600 ECG45 D FH SAA

SIZE

(Nominal / overall w x h [mm])

SERIES

DAMPER

Opposed blade............... D

FRAME TYPE

37mm bevelled...............30mm flat........................25FOthers page 6.. ..............[#]

FINISH

Satin anodised................ SAAPowder coat...............RAL/BS

30mm flatflange (Opt)

A Nominal + 30mmB 28mmC 72mmD 30mm

37mm bevelledflange (Std)

A Nominal + 45mmB 28mmC 70mmD 37mm

ECG45Series

CORE TYPE

Fixed...............................Hinged............................. HCFully removable............... RC

FIXINGS

Countersunk face............ FHConcealed fixings........... CFGoalpost brackets........... GBPush in clips.................... PCBurgess tile..................... BT

www.h-v-c.com for live UK stock levels

Hinged & removable coresGrilles

6

Grille series

Core type SD DD FB ECG NV CB LG LGFR CFLG RGS PSG LFP PPG LCD

Hinged core xN/A N/A N/A

Removable core x

Removable cores

Enabling the whole core section to be removed allowsunsurpassed access to dampers and duct internals, withouthaving to remove the main frame, avoiding unnecessary damageto walls or ceilings.

Quarter turn fasteners are the standard removable core fitting.Using a discrete clip on the main frame, and a zinc plated pin heldsecurely by a neoprene washer in the core frame, the fastenersare completey secure when in position, but allow quick and easycore removal when needed.

The bracket’s slim design means grille depths are unchangedfrom standard, non removable core models.

Wing head pins are available as an alternative to slotted headpints to allow removal by hand if required.

Pins and brackets are supplied unpainted.

Hinged core

As with removable cores, hinged cores use a main and coreframe.

Zinc plated piano hinge is fitted to the full length of the hingedside, and countersunk cross headed bolts secure the core in it’sclosed position.

Chromed cam fasteners are optional.

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Countersunk fixing holes: Code suffix FH

Countersunk fixing holes in the grille frame arethe easiest fitting method. Screws in the same

finish are supplied with the grille.

Concealed fixings: Code suffix CF

Consisting of L brackets with threaded ports, oneL bracket is fixed into the ductwork or plenum, the

other is riveted to the rear of the grille frame.Supplied bolts are then used to hold the grille into

the supporting structure.

Goalpost method: Code suffix GB

Normally used on linear slot diffusers, HVC hasmade this effective fixing method available to a

wider range of grilles with the addition of asecond bracket.

It enables the whole grille to be fully supportedby, and removable from the plenum.

This method is only suitable for linear grilles with0° blade, single / double deflection grilles, egg

crate grilles, curved blade grilles, and any othergrille with the removable or hinged core option

specified.

Fitting optionsGrilles

7

Push-in clip method: Code suffix PC

These sprung clips are compressed when thegrille is pushed into place. The outward force

provided then holds the grille securely in place.

This method has the advantage of requiring nodrilling or bolting, for maximum ease and causing

no damage to walls.

This fixing method is not suitable for use inceilings.

www.h-v-c.com for live UK stock levels

Grille seriesFrame types SD DD FB ECG NV CB LG LGFR CFLG SDG PSG LFP PPG LCD

1 25mm large flat x x

N/A N/A N/A

x x STD

2 30mm flat 1 way x x x x3 NV angle x NV1-3 x4 32mm small bevelled STD x STD x x STD x x x x5 32mm large bevelled STD x x STD x x6 37mm ECG x x x STD x x x x STD x7 30mm ECG x x x x x x x x

8 Slimline surfacemounted x x x NV4 x x x x x

9 Largesurface mounted x x x

10 36mm bevelled LG x x x x x x STD x x x x11 31mm flat LG x x x x x x x x x x

Frame typesGrilles

8

1 2 3

4

5

67

8

9 10 11

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Gril

le w

idth

(mm

)

2000

1800

1600

1400

1200

1000

900

800

700

600

500

400

300

200

150

100

90

80

70

60

100

150

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250

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600

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800

900

1000

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1200

100

150

200

250

300

350

400

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500

550

600

0

0.1

0.2

0.40.6

1

2

46

1015

20

4060100150

50

40

30

20

15

10

8

654

3

2

1.5

1.0

0.75

0.5

0.25

Vol

ume

(l/s)

Sou

nd p

ress

ure

leve

(NC

)

Jet v

eloc

ity (m

/s)

Sta

tic p

ress

ure

(Pa)

Gril

le h

eigh

t (m

m)

9

ECGSelection data

www.h-v-c.com for live UK stock levels

Overview

Designed to facilitate the fitment of ducting to a grilleor diffuser.

HVC plenum boxes are available in top or side entrymodels with one or multiple spigots of any diameter.Fire rated models & acoustically lined variants are alsoavailable.

Galvanised steel throughout

Brake press formed.

Spot welding on spigots.

Sealant used on any joints.

Standard - Plenum riveted (or other suitable method) to grille or diffuser on site.

Optional - Fixing lugs to suit drop rod ceiling.

12.5mm outturned flange used oneverything except type CD and PPDdiffusers.

Standard - Galvanised steel.

Optional - Painted to any RAL / BS colour.

Specifications:

Materials:

Construction:

Fixings:

Flange:

Finish:

Plenum boxesAncillaries

10

Top entry plenum box, uninsulated, with 12.5mm out-turns

Spigot selectionNC Level 25 30 35 40 45Diameter 2.5m/s 3.0m/s 3.5m/s 4.0m/s 4.5m/s

100 0.019 0.023 0.027 0.031 0.035125 0.03 0.037 0.043 0.049 0.055150 0.044 0.053 0.062 0.07 0.079160 0.05 0.06 0.07 0.08 0.09175 0.06 0.072 0.084 0.096 0.108200 0.078 0.094 0.11 0.125 0.14225 0.1 0.12 0.14 0.16 0.18250 0.12 0.147 0.17 0.196 0.22300 0.177 0.212 0.247 0.28 0.32315 0.195 0.23 0.27 0.31 0.35350 0.24 0.29 0.33 0.38 0.43400 0.31 0.38 0.44 0.5 0.56450 0.4 0.48 0.56 0.64 0.72500 0.49 0.59 0.68 0.78 0.88550 0.59 0.71 0.83 0.95 1.07600 0.7 0.85 0.99 1.13 1.27

The chart below gives maximum volume in m3/s that shownspigot sizes can handle for a given noise level, with neckvelocities in m/s.

Top entry: Series TEPB

Side entry: Series SEPB

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TEPB / SEPB / FRTEPB / FRSEPBSeries

Fire rated: Series FRTEPB / FRSEPB

Constructed from fully welded 1.22mm thick galvanised steel,and with an integrated S200 fire damper rated for a period of sixhours, or an intumescent damper rated at one hour.

The spring loaded damper blades of S200 fire dampers alsomean that top entry boxes can be made fire rated, aswell as sideentry.

HVC always recommend consulting the relevant fire authoritywhen installing fire rated HVAC equipment.

Top entry: Series FRTEPB

Side entry: Series FRSEPB

11

SBD

BOX DEPTH

Not needed if Series = SEPB

FLANGE

12.5mm all roundIf different required state size

SPIGOT DAMPER

Single blade damperfitted to all spigots.......... SBD

600 x 600 SEPB 2C 200 F

SIZE

(Nominal / overall w x h [mm])

SERIES

SPIGOT ARRANGEMENT

State number reqd ‘n’..... ‘n’Double spigot opposite... 2OPDouble spigot corner...... 2C

SPIGOT SIZE

000................................ Ø000 x 000...................... W x H

IN-RAL9005

FURTHER OPTIONS

Painted interior...... IN-RAL__Painted exterior..... EX-RAL__Insulated interior.... IN-INSInsulated exterior... EX-INS

Grilles & diffusers

Louvres

Fire / Fire smoke dampers

Volume control dampers

Supplies Ltd

All references to companies notpart of the HVC group of

companies are used with thepermission of their respective

owners.

All details within this brochure are correct at time of going to print. HoweverHVC’s policy is one of continual product development. The right is reserved to

alter any details published in this brochure without any prior notice. Anychanges will appear on www.h-v-c.com as soon as is practically possible.

All information in this brochure is designed to be used for informative purposesonly. HVC will not be legally bound by anything contained within this

publication, or any other information distributed.www.h-v-c.com