R-4 Reducers0 pages

®

Redflex R-4 & R-5 Reducers
Ǡ Connects unequal pipe sizes
Ǡ Reduces vibration and noise
Ǡ Non-corrosive
Ǡ Shock resistant

Red Valve Company’s Redflex® Concentric and Eccentric
Reducers can be used as pipe reducers or increasers,
flexible connectors, or vibration and noise reducers. These
reducers are designed to replace metal reducers used on
pipelines from pumps, compressors, and other equipment.
Like Redflex® pipe, elbows, and other flexible connectors,
they prevent damage to equipment and compensate for
minor misalignments.

R-4

The inner lining of the reducer is natural rubber,
Chlorobutyl, Buna-N, Hypalon®, or Viton®. The body is
constructed of multiple plies of strong Nylon fabric impregnated with rubber or synthetic compounds. Steel wire is
embedded in the body of the reducer for additional
strength. A protective cover of natural or synthetic rubber
provides resistance to deterioration from weather and
ozone. A Neoprene cover is normally used.
A special high-temperature construction is available for
temperatures up to 400°F.
Red Valve Company manufactures concentric reducers to
meet your exact piping needs. The flanges are designed
to meet ANSI Class 125 drilling. Split steel rings must be
installed on the inside of the flange.
As with standard expansion joints, when piping is not
anchored, control units must be used with the reducer joint
to prevent over-elongation.

R-5

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
50 psi in all sizes —
Higher pressures, consult factory

Dimensions of the R-4 Reducers correspond to dimensions
of the J-10 Concentric Expansion Joints. For dimensions,
please refer to the chart on page 11. Dimensions of the R-5
Reducers correspond to dimensions of the J-11 Eccentric
Expansion Joints. For dimensions, please refer to the chart
on page 13.