J-10 Reducing Expansion
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Connects unequal pipe sizes Absorbs thermal expansion and contraction Eliminates vibration and noise Noncorrosive Shock resistant Made in U.S.A. Red Valve Company’s J-10 Concentric Reducer provides all of the benefits of a Redflex® Expansion Joint, with the ability to mate unequal size pipes. J-10 Concentric Reducers can be used as pipe reducers or increasers, expansion joints, flexible connectors and vibration eliminators. These tapers were designed to replace metal reducers in the pipeline. They are available in single, double, and triple arches, in either open or filled models. The multiple arches are used in applications where expansion or contraction will occur. The advantage to the all-rubber J-10 Reducers over metal reducers is the flexibility and durability of the elastomer. Filled reducers are usually used on slurry and abrasive applications to prevent the collection of material which can settle in the arches. The Redflex® J-10 Concentric Reducer eliminates noise and isolates vibration in the pipeline, reduces stress, eliminates electrolysis and protects against start-up surges. Concentric reducers save installation space and reduce costs. Materials of Construction Ǡ ELASTOMERS Pure Gum Rubber, Neoprene, Hypalon®, Chlorobutyl, Buna-N, EPDM, and Viton® Ǡ CONTROL RODS Galvanized Steel, Stainless Steel Ǡ RETAINING RINGS Galvanized Steel, Stainless Steel Ǡ WORKING PRESSURE Standard pressure rating: 50 psi High pressure rating: 75 psi Ǡ VACUUM RATING 15 in. Hg Full Vacuum Available Red Valve Company manufactures concentric reducers to meet your exact piping needs. A complete chart of standard dimensions are listed on the next page. The flanges are designed to meet ANSI Class 125 drilling. J-10 Reducers are available in a variety of elastomers to satisfy the chemical compatibility and temperature of the process fluid. Piping systems must be anchored when using concentric reducers. Standard control rods cannot be used to prevent overextension or elongation. This is particularly of concern in larger diameter sizes, over 12”, where the smaller end joint control rods have a lever effect. Special design control rods with backup plates may need to be engineered.

Dimensions and Movement J-10 Concentric Reducers Open Arch Movement Capability: From Neutral Position Filled Arch Movement Capability: From Neutral Position *Filled Arch Only Sizes reflect available tooling — other sizes available, consult factory.