J-10 Reducing Expansion0 pages

J-10 Expansion Joints
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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.

Control Rod Configuration