 Joint
Restraints
Solid ductile-iron restraints help maintain secure connections between
pipes, fittings, and valves. In many installations, these restraints
offer enough strength and support to eliminate the need for concrete
thrust blocks.
Product Information
Knuckle Joint Restraint
Designed for HARCO’s Push-on DI fittings for IPS-PVC pipe.
Single-bolt actuation, easy to install; features machined grip ring
serrations. Available in 1 1/2"— 4".
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Valve-to-Pipe Restraint System
Speeds installation and improves access by eliminating concrete
thrust blocks. Direct clamp to pipe prevents movement. Fits most push-on
valves for IPS-PVC pipe. Available in 6 sizes, 2"—12".
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Valve-to-Fitting Restraint System
Speeds installation and improves access by eliminating concrete
thrust blocks. Direct clamp to valve prevents movement. Fits most
push-on valves for IPS-PVC pipe. Available in 6 sizes, 3"—12".
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Fitting-to-Valve to Pipe Restraint
Our new design now has fewer parts and allows for easier
installation of the grip rings and ductile iron restraint rods from
the side. Direct clamp to valve prevents movement. Fits most
push-on valves for IPS-PVC pipe. Available in 6 sizes, 2"—12".
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Fitting to Pipe Restraint
Our pipe restraint eliminates concrete thrust blocks and is
especially useful for bridge crossings, stream crossings, unstable
soils, and fill areas. Available in sizes, 2"—16".
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Pipe to Pipe Restraint
Joint restraint systems tie lengths of pipe to a fitting, relying on
the friction of the soil on the pipe to resist fitting thrust
forces.
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Joint Restraints for C-900 Pipe
Durable DI joint restraints for C-900 are available in three sizes: 4”,
6”, and 8”.
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