Technical FAQs

What is the allowable joint deflection / pipe bending allowed for Westlake Pipe & Fittings (CAN) PVC pipe & joints?

Allowable angular joint deflection for Westlake Pipe & Fittings pipe:

Joint Type Max. Angular Joint Deflection

Pressure Pipe – Integral Bell (IB)

2° (100mm to 300mm [4” to 12”])

1° (350mm to 600mm [14” to 36”])

Pressure Pipe – Certa-Lok Restrained Joint Integral Bell (RJIB) 

0.5°

Gasketed Sewer – Integral Bell (IB)

5° (100mm to 300mm [4” to 12”])

 

3° (375mm to 600mm [15” to 24”])

 

1.5° (675mm [27”])

Kor-Flo®

5° (100mm to 300mm [8” to 18”])

 

3° (525mm to 600mm [21” to 24”])

 

1° (750mm to 900mm [30” to 36”])

Cobra Lock RJ Coupling

N/A – Refer to Max. Bending Limits

For more information on changing direction of Westlake Pipe & Fittings' Gasketed Sewer Pipe refer to the Gasketed Sewer Pipe and Fittings Installation Guide (Page 19 and 20)