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Strip Grilles - SGT

  
   
   
   

TYPE SGT        (0 DEGREE DEFLECTION:):

Strip Grilles manufactured of extruded Type 50S anodising grade aluminium with ftxed blades. These  grilles can be used either vertically or horizontally.

They can be used as supply or return Air Grilles and also  for fancoil and induction units, and can incorporate access flaps.

Optical Accessories OBD
=
Opposed Blade Damper
  PC
=
Punched counter sunk holes
  CF
=
Concealed Fixing
SGT13 13mm   Blade Spacing
SGT19 19mm   Blade Spacing
Frame Options 30mm     Standard
  20mm    
  50mm    
Finish Options NA
=
Natural Anodised
  EPC
=
Epoxy Powder Coating
Blade Spacings 13mm   Standard
  19mm    
  21mm    
  26mm    
       
Ordering Procedure: Example
REF
QTY
SIZE (LxH)
TYPE
ACCESS
FRAME
FINISH
SPECIAL INSTRUCTIONS
1
2
500 X 200
SGT13
-
30
NA
CF

Note:
(1)   Dimensions given are for over neck size
(2)   If code "OS" is entered under SPECIAL INSTRUCTIONS, then dimensions given are over flange.
(3)   If 19, 21 or 26mm Blade Spacing required, enter under SPECIAL INSTRUCTIONS.

Selection Data

  • For dimensional data refer to sheet SGT
  • Selection data if for 13mm blade spacing
  • Selection data is based on m3/s/meter width
  • Jet velocity is actual velocity between blades
  • Average face velocity (25mm from grille) - 65% of jet velocity
  • Type SGT usually only used for extract

EXAMPLES (Selection based on 1 meter lengths of grille)

Type SGT - For 0,278m3/s/meter and 6 meter throw use 137,5mm wide grille (duct width)

    • Jet velocity - 4,6m/s
    • Pressure drop - 9n/m2 (Extract or 12n/m2 (supply)

Conversion Factors

  • CFM x 0,000472 = m3/s
  • FPM x 0,005 = m/s
  • Inches WG x 250 = n/m2
  • INCHES x 25,4 = mm

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