6 in Ductile Iron Valve to Pipe Restraint — Professional-Grade Fittings
Harco’s ductile iron joint fittings are designed to offer the best possible balance of strength, ductility, impact and corrosion resistance. Fittings are manufactured fro ASTM A536, Grade 65-45-12 ductile iron with a tensile strength of 65,000 PSI. These fittings are designed for use on IPS PVC pipe and steel pipe in underground water mains, irrigation systems and sewer force mains.
Ductile iron is produced by adding magnesium alloy to molten iron. The magnesium causes the flake-form graphite to assume a spheroidal shape. This change in the carbon structure results in a far stronger, tougher ductile material than cast iron while retaining superior corrosion properties.
Ductile cast iron is the standard underground material in the waterworks industry. In ductile and cast iron, this corrosion resistance is created from a layer of insoluble graphite that is formed from initial corrosion that becomes a protective barrier against additional corrosion atta
The 820626 from The Harrington is a contractor-trusted choice for residential and commercial landscape systems. Sourced through authorized U.S. distribution and backed by the full manufacturer warranty, it delivers the reliability professionals specify on the job.
Key Specifications & Features
- Model / Part Number: 820626
- Brand: The Harrington
- Size: 6
- Condition: Genuine factory-new
Frequently Asked Questions
Is this a genuine factory-new product?
Yes — Big Irrigation Supply sells only genuine, factory-new product sourced through authorized distribution, never gray-market or refurbished.
How quickly does this ship?
In-stock items ship fast from our U.S. distribution network, typically arriving within 3–7 business days.
Is this a genuine factory-new product?
Yes — Big Irrigation Supply sells only genuine, factory-new product sourced through authorized distribution, never gray-market or refurbished.
How quickly does this ship?
In-stock items ship fast from our U.S. distribution network, typically arriving within 3–7 business days.
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