General PVC
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- What is the color coding of PVC pipe?
- What is the life expectancy of PVC pipe?
- What is the difference between "DR" and "SDR"?
- What is CIOD and IPS?
- Is there a leakage allowance for AWWA Gasketed PVC pipe?
- What is Westlake Pipe & Fittings' Warranty Policy?
- What's the difference between Schedule 40 and Schedule 80 PVC (Plumbing)?
- How do I know that I have a quality piece of C900 PVC pipe?
- Where is Westlake Pipe & Fittings' PVC Pipe produced (U.S. and Canada)?
PVC Pipe Design
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- What is the difference between NSF 61 and NSF 14?
- What is the maximum flow velocity of PVC pipe?
- What effect does UV exposure have on PVC pipe?
- What is the Thermal Expansion / Contraction of PVC pipes?
- What is the minimum burial depth for PVC sewer pipe?
- What is the minimum burial depth for PVC pressure pipe?
- What is an example of a buried and embedded pipe?
- What chemicals can be used with PVC pipe and gaskets?
- Can PVC pipe be used and installed in Cold Weather?
- What is the maximum allowable operating temperature of PVC piping systems?
- What is the maximum burial depth for PVC sewer and pressure pipe?
PVC Pipe Installation and Testing
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PVC Pipe Gasket
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Certa-Lok® Joint
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- What is Westlake Pipe & Fittings' Certa-Lok®?
- In which Westlake Pipe & Fittings' product lines is Certa-Lok® available?
- What is the difference between an RJ Coupling (Restrained Joint Coupling) and RJIB (Restrained Joint Integral Bell)?
- Where can I find the Maximum Allowable Tensile Force for Certa-Lok® products?
General PVCO
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LEED
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- I have a LEED related form that requires information from the manufacturer. What information does Westlake Pipe & Fittings need to fulfill my request?
- Is there recycled content in Westlake PVC Pipe & Fittings?
- What is LEED?
- What is the level of volatile organic compounds (VOC’s) that are present in Westlake’s PVC primers and solvent cements?
- What role does Westlake PVC pipe & fittings play in LEED certification for my project?
- Where are Westlake PVC Pipe & Fittings plants located?
- Where can I find more information about the role of PVC pipe in sustainable infrastructure development?
- Where can I find the Environmental Product Declaration (EPD) and other documents related to the suitability and sustainability of PVC pipe and fittings for my project?
- Who supplies Westlake Pipe & Fittings with PVC resin and where are Westlake PVC resin manufacturing facilities located?
CCTV inspection of PVC pipelines can reveal small longitudinal gaps between the spigot end and the end of the bell of gasketed joints. These gaps are designed to accommodate expansion, deflection, and slight over-insertion. This gap does not affect the hydraulic performance of the pipe.
Note: Pictures and videos from CCTV inspections cannot be used to determine exact measurements of joint gaps due to viewing angles and camera lighting.
Example of typical gap in joint
For more information, refer to Uni-Bell's Technical Brief about Expansion Gaps
RELATED QUESTIONS
- What is the recommended bell direction during installation?
- What is the allowable joint deflection / pipe bending allowed for Westlake Pipe & Fittings (CAN) PVC pipe & joints?
- What is the allowable joint deflection / pipe bending allowed for Westlake Pipe & Fittings (U.S.) PVC pipe & joints?
- Can installed PVC pipe be air tested?
- What is the recommended bell direction in relation to the fluid flow direction?
General PVC
Open Accordion Menu Item
- What is the color coding of PVC pipe?
- What is the life expectancy of PVC pipe?
- What is the difference between "DR" and "SDR"?
- What is CIOD and IPS?
- Is there a leakage allowance for AWWA Gasketed PVC pipe?
- What is Westlake Pipe & Fittings' Warranty Policy?
- What's the difference between Schedule 40 and Schedule 80 PVC (Plumbing)?
- How do I know that I have a quality piece of C900 PVC pipe?
- Where is Westlake Pipe & Fittings' PVC Pipe produced (U.S. and Canada)?
PVC Pipe Design
Open Accordion Menu Item
- What is the difference between NSF 61 and NSF 14?
- What is the maximum flow velocity of PVC pipe?
- What effect does UV exposure have on PVC pipe?
- What is the Thermal Expansion / Contraction of PVC pipes?
- What is the minimum burial depth for PVC sewer pipe?
- What is the minimum burial depth for PVC pressure pipe?
- What is an example of a buried and embedded pipe?
- What chemicals can be used with PVC pipe and gaskets?
- Can PVC pipe be used and installed in Cold Weather?
- What is the maximum allowable operating temperature of PVC piping systems?
- What is the maximum burial depth for PVC sewer and pressure pipe?
PVC Pipe Installation and Testing
Open Accordion Menu Item
PVC Pipe Gasket
Open Accordion Menu Item
Certa-Lok® Joint
Open Accordion Menu Item
- What is Westlake Pipe & Fittings' Certa-Lok®?
- In which Westlake Pipe & Fittings' product lines is Certa-Lok® available?
- What is the difference between an RJ Coupling (Restrained Joint Coupling) and RJIB (Restrained Joint Integral Bell)?
- Where can I find the Maximum Allowable Tensile Force for Certa-Lok® products?
General PVCO
Open Accordion Menu Item
LEED
Open Accordion Menu Item
- I have a LEED related form that requires information from the manufacturer. What information does Westlake Pipe & Fittings need to fulfill my request?
- Is there recycled content in Westlake PVC Pipe & Fittings?
- What is LEED?
- What is the level of volatile organic compounds (VOC’s) that are present in Westlake’s PVC primers and solvent cements?
- What role does Westlake PVC pipe & fittings play in LEED certification for my project?
- Where are Westlake PVC Pipe & Fittings plants located?
- Where can I find more information about the role of PVC pipe in sustainable infrastructure development?
- Where can I find the Environmental Product Declaration (EPD) and other documents related to the suitability and sustainability of PVC pipe and fittings for my project?
- Who supplies Westlake Pipe & Fittings with PVC resin and where are Westlake PVC resin manufacturing facilities located?
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Our Technical Services Team can help you with design application, installation, material compatibility, and specification or certification data.
