Our Single Barb Fittings Features and Clamp
The threads are molded in precision-ground cavities resulting in perfectly
matched threads at the parting line. This produces the cleanest, most accurate
molded thread possible.
Why our fittings are better.
Our single-barbed fittings are designed so the mold parting line stops at the base
of the barb. The ridge and the barb's conical surface are free of the molded-in
leak path present in multiple barb
fittings. The conical surface is glass-like and smooth allowing excellent
The straight barb shaft provides space for the hose to relax behind the barb
causing the clamp to work like a
drawstring. This forces the hose diameter to become smaller than the flare of
the fitting's barb. If the tubing
swells from internal pressure (near burst), the clamp will be pulled up
tight to the back of the barb and a tight seal will be maintained.
Why multiple barb fittings fail
Mismatches often occur with poor quality or worn tooling, causing misaligned
threads and barbs that result in leakage. With multiple barb fitting
designs, it is virtually impossible to avoid creating parting lines on the
barb surface. These parting lines create leak paths which become more pronounced
as the mold tooling wears.
Multiple barbs are typically in close succession. This prevents the tubing from
relaxing to its original size, which is essential to the barb's performance.
If the tubing does not relax behind the barb, the barb is rendered useless, as
shown above. (Note the bridging effect.)