Q.R. Flex Seismic Joint Pipe

Product description
A new-generation seismic-resistant ductile iron pipe and fitting system designed to accommodate axial displacement, angular deflection, vibration and ground movement.

Joint structure

• Tyton-type rubber gasket
• Hardened-steel locking ring
• Retaining sleeve
• Integrated restraint mechanism
• Flexible push-in joint construction

Key features

• Seismic-resistant connection
• Resistant to bending and vibration
• Allows axial movement
• Allows angular deflection
• Prevents pull-out and joint separation
• Maintains leak-tight performance
• Creates a continuous restrained chain along the pipeline
• Distributes axial forces throughout the pipeline
• Requires an installation force similar to a standard Tyton joint
• Faster and easier installation than conventional restrained systems

Applications

• Loose and unstable soils
• Swampy or soft ground
• Seismic and fault zones
• Steep slopes
• Landslide-risk areas
• Locations where concrete thrust blocks cannot be installed
• Water transmission and distribution networks
• Difficult terrain and ground-movement zones

Benefits

• Reduced need for concrete thrust blocks
• Lower installation cost
• Reduced need for separate bolts and accessories
• Fast assembly
• Increased network safety
• Reduced risk of joint separation
• Reduction of water losses

Standards

• Seismic design: ISO 16134
• Functional testing: ISO 10804
• External coating: ISO 8179
• Internal lining: ISO 4179 and EN 598
• Pipe manufacture: ISO 2531 and EN 545
• Rubber gasket: ISO 4633