SKU
820421

Harco - 4" Ductile Iron IPS Fitting to Valve to Pipe Joint Restraint

  • Eliminates concrete thrust blocks
  • Restrains valve directly to the pipe
  • Machined grip rings perform long term
  • Fits push-on valves for IPS-PVC pipe
 
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Eliminate Concrete Thrust Blocks
With the HARCO Fitting to Valve to Pipe Joint Restraint you can eliminate concrete thrust blocking of valves and support the use of fitting joint restraint. This dramatically speeds the installation and allows for later access to the valve. In combination with fitting restraints and pipe bell restraints using the principles of mechanical joint restraint, concrete thrust blocking of the Tee and valve can be eliminated. Consult HARCO for a simple restrained pipe length calculation utility.

One Size Fits All
The Harco Valve to Pipe restraint fits push-on valves for IPS-PVC pipe made by American Flow Control/Waterous, AVK, Clow, Kennedy, Matco-Norca, M&H and Nibco. New Design with fewer Parts HARCO’s Valve to Pipe Restraint now has fewer parts and allows for easier installation of the grip rings and ductile iron restraint rods from the side.

Proper Thrust Force Transfer
HARCO’s design transfers valve thrust forces directly to the grip rings unlike other valve restraints that apply forces to the ends of the pipe risking a failure. Harco grip rings have machined serration which have the exact form required to grip the pipe perfectly, ensuring long-term performance. As cast serrations provide inconsistent gripping of the pipe and questionable long-term performance.

The HARCO Difference
Standards and testing are a major advantage to HARCO. The grip ring design used by HARCO has been tested to comply with the industry standard for PVC pipe joint restraint, Uni-B-13-94, passing all three tests: the quick burst test, the 1,000 HR test and the one million cycle test.

Warning:
If grip rings are not installed flush against valve bells, the thrust force from valve closure may cause the valve to force itself over end of PVC pipe resulting in failure of gasket seal, causing a leak.

Suggested Specifications
Fitting to Valve to Pipe restraint shall consist of ductile iron (ASTM A536) grip rings with machined serrations and ductile iron restraint rods. The ring that grips the pipe shall meet the requirements of Uni-B-13-94. The restraint rods / nuts shall be made from low alloy steel to AWWA/ANSI C111/A21.1 or ductile iron to ASTM A536. All valve restraint is to be supplied by the Harrington Corporation of Lynchburg, Virginia.

Brand
The Harrington Corp
Connection Type
Fitting X Valve
Body Height
15"
Connection Size
4"
Material
Ductile Iron
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