Sprinkler Spacing and Flow

NOTE: You may need to scroll the table below left/right for more information

Nozzle sizes available

Maximum spacing between sprinkler heads

Nominal flow rate using our Flow Control Insert

2.5mm

11 1/2 Feet

1.6 gpm

3.2mm

11 1/2 Feet

2.4 gpm

4.0mm

13 Feet

3.7 gpm

Rule of Thumb Guide for Pipe Sizing

NOTE: You may need to scroll the table below left/right for more information

Max number of sprinklers for 3/4” Type M Copper

Max. number of sprinklers for 1” Type M Copper

Max. number of sprinklers for 11/4” Type M Copper

Max. number of sprinklers for 11/2” Type M Copper

Max. number of sprinklers for 2” Type M Copper

2.5mm

8

14

22

31

54

3.2mm

4

8

13

18

33

4.0mm

2

5

8

11

20

Maximum angle of sprinker installation is 35 ̊ off vertical for effective operation.
Recommended minimum operating pressure at pump is 75 psi.
Optimum operating pressure at each sprinkler head is 45 psi.
We recommend using our Flow Control Inserts to ensure optimum performance.

Benefits of using Flow Control Inserts

• Flow Control Inserts are installed at each sprinkler
• Flow Control Inserts only available for 2.5mm • Flow Control Inserts are installed at each sprinkler and 3.2mm nozzles
• Flow Control Inserts only available for 2.5mm and 3.2mm nozzles

Metal Fascia

Timber Fascia

Ridgeline and Hip Exposed Mount

  • Stainless steel bracket and pipe clip secured to metal roofing with tek screw and rubber seal.
  • Stainless steel bracket and pipe clip secured to tile roofing using SikaFlex 11IFC and Sika Primer.

Ridgeline and Hip Backside Hidden Mount

Ridgeline and Hip Concealed Mount

Part 1

Part 2

Exposed and Concealed Gable End Diagrams

  • Stainless steel fascia plates can be powder coated to match fascia color

Roof Mounted Exposed Pipework

  • Stainless steel bracket and pipe clip secured to metal roong with tek screw and rubber seal.
  • Stainless steel bracket and pipe clip secured to tile roong using SikaFlex 11IFC and Sika Primer.

Parapet Wall Mounting Options

OPTION 1
• Pipework mounted at top of external wall

OPTION 2
• Pipework mounted on top of parapet

OPTION 3
• Pipework mounted using stand off bracket and clip head on inside of parapet and 1/2” copper pipe up to sprinkler

Note: The top of the sprinkler head needs to be mounted so that water sprays out and down the wall as well as spraying onto the roof.

Under Decking/Alfresco Mounting Diagrams

INVERTED MOUNTING
Sprinkler heads are mounted vertically when used upside down (inverted) for a decking or alfresco area.