Back-Up Rings

Back-Up Ring 304 Stainless - SDR 11

Back-Up Rings available in sizes 1-1/4" - 6"

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Back-Up Ring Ductile Iron Backing Rings - SDR 11 / Epoxy Coated

Back-Up Rings available in sizes 1" - 24" •Class #150 • Description A conventional cross section (reduced section modulus) in ductile iron •Utilization A back-up ring for IPS or AFR connections. Buttweld or integrally flared stub-ends.
• Materials Cast in ductile iron A536. Tensile strength 80,000 psi, yield. 55,000 psi, elongation 6%.
• Dimensions Vital dimensions AWWA C207. Mates with ANSIB16.5, B16.47; AWWA C207.
• Finish Epoxy Coated Red

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