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Hole sizes for fittings for overflows


livingart

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From the Hansen website 

http://www.hansenproducts.co.nz/products/tank/SFTFT-install.htm

 

tank_parts.gif 
RECOMMENDED HOLE SAW SIZES
15mm = 22mm or 7/8" Hole Saw
20mm = 27mm or 1 1/16" Hole Saw
25mm = 34mm or 1 3/8" Hole Saw
32mm = 42mm or 1 5/8" Hole Saw
40mm = 48mm or 1 7/8" Hole Saw
50mm = 60mm or 2 3/8" Hole Saw
80mm = 95mm or 3 3/4" Hole Saw
100mm = 121mm 
or 4 3/4" Hole Saw
 
MINIMUM RECOMMENDED 
HOLE SIZES

Hole Size for 15mm = 22mm
Hole Size for 20mm = 27mm
Hole Size for 25mm = 34mm
Hole Size for 32mm = 42mm
Hole Size for 40mm = 48mm
Hole Size for 50mm = 60mm
Hole Size for 80mm = 95mm
Hole Size for 100mm = 121mm
   
tank_install_1.jpg


nu1.gif

 


Remove the Back Nut and the Low Density Poly Washer (the firmer of the 2 washers) from theTank Fitting Body. Slide the Tank Fitting Bodythrough the hole in the tank. The Rubber Washermust be between the Fitting Body Flange and the tank wall (ensure the ribs on the Rubber Washerare sealing against the tank wall).

   
tank_install_2.jpg


nu2.gif


On the inside of the tank wall, slide the Low Density Poly Washer back onto the Tank Fitting Body and then wind on the Back Nut.

   
tank_install_3.jpg


nu3.gif


Tighten the Back Nut so that the face of both washers make full contact with the tank wall to obtain a water tight seal. Ensure that you comply with the tank manufacturers specifications

   
tank_install_4.jpg
nu4.gif

When adding additional fittings it is recommended that either a thread sealing paste or thread sealing tape be used on all threaded connections. We recommend Loctite 5331
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