AquaSpring® AWWA C900 Certa-Lok® RJIB PVC Pipe

Westlake Pipe & Fittings’ AquaSpring™ AWWA C900 Certa-Lok® RJIB PVC Pipe is a patented, segmented Restrained Joint Integral Bell (RJIB) C900 pipe system that utilizes a corrosion-proof spline aligned with precision-machined grooves to create a bi-directionally restrained joint that can be assembled in minutes. 

  • Designed for trenchless applications with robust tensile strength for pulling multiple segments underground
  • Helps decrease jobsite footprint and minimize community disruption with a reduced need for job site staging area and traffic control
  • Certa-Lok® provides bi-directional strength that is quick and easy to assemble in any weather conditions
  • Quick and easy assembly without interrupting the pulling process
  • Utilizes Fluid-Tite® gaskets (6" - 24") with superior sealing surface for a leak-free joint and greater deflection capability

What Is Restrained Joint PVC Pipe?

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Restrained joint PVC pipe is designed with joints that resist separation under pressure without requiring external thrust blocks. This design provides added security in high-pressure systems, while maintaining the lightweight and corrosion-resistant benefits of PVC.

What Makes Certa-Lok® Different?

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  • Spline-locked, gasket-sealed system ensures a reliable, bi-directionally restrained joint.
  • Quick assembly without solvents, cements, or adhesives—even in challenging weather conditions.
  • Superior sealing with Fluid-Tite® gaskets (6"–24"), delivering leak-free performance and deflection capability.
  • Strong tensile capacity, enabling long pulls for trenchless applications with fewer disruptions.
  • Lightweight and corrosion-resistant, reducing installation labor and extending service life.
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Brochure

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Segmented PVC vs HDPE
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Segmented PVC vs HDPE

Installation Guide

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Municipal Installation Guide | AquaSpring® C900, AquaMax® C909, AquaConnect®
Certa-Lok® RJIB Installation Guide
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Field Grooving Certa-Lok® Pipe
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Guía de instalación | AquaSpring® C900, AquaMax® C909, AquaConnect® (Spanish)

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Certa-Lok® Assembly Time
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Certa-Lok® Restrained Joint Integral Bell (RJIB) PVC Pipe System

Technical Product Specification

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Technical Bulletin

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Certa-Lok® RJIB vs. Restrained Gaskets: Joint Performance

Calculators

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Certification Letter

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Nominal Sizes
6", 8", 10", 12", 16", 18", 20", 24"
Gasket Options
SBR, EPDM, NBR
Diameter Standard
CIOD
Class
DR 14, DR 18, DR 25
Pressure Rating
165 psi, 235 psi, 305 psi
Product Options
Solid Wall
Certifications
FM 1612, NSF 14, NSF 61, UL 1285
Part # Nom Size Description Color Class Gasket Type Length Resources
A51404020000B000
39C04002020100
4" C900CL RJIB 4X20 DR14 BL Blue DR 14 EPDM Gasket 20'
A51804020000B000
39E04002020100
4" C900CL RJIB 4X20 DR18 BL Blue DR 18 EPDM Gasket 20'
A51804020000P000
39E04002020500
4" C900CL RJIB 4X20 DR18 PU Purple DR 18 EPDM Gasket 20'
39E040020C0200
4" C900CL RJIB 4X20 DR18 GR Green DR 18 - 20'
A51408020000B00S
3KC080020S0100
8" C900CL RJIB 8X20 DR14 BL SBR Blue DR 14 SBR Gasket 20'
A51408020000B04S
3KC080020S0180
8" C900CL RJIB 8X20 DR14 BL SBR NSF14 CSA Blue DR 14 SBR Gasket 20'
A51408020000B01S
3KC080020S0190
8" C900CL RJIB 8X20 DR14 BL SBR NSF14 Blue DR 14 SBR Gasket 20'
A51408020000G00S
3KC080020S0200
8" C900CL RJIB 8X20 DR14 GR SBR Green DR 14 SBR Gasket 20'
A51408020000G02S
3KC080020S0270
8" C900CL RJIB 8X20 DR14 GR SBR CSA Green DR 14 SBR Gasket 20'
A51408020000P00S
3KC080020S0500
8" C900CL RJIB 8X20 DR14 PU SBR Purple DR 14 SBR Gasket 20'

Why Choose Westlake Pipe & Fittings

Westlake Pipe & Fittings is a trusted PVC pipe manufacturer with decades of experience serving municipal, industrial, and infrastructure markets. Our AquaSpring® restrained joint pipe system delivers performance, reliability, and sustainability, backed by industry-leading technical support and nationwide distribution.

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