Swivel Joints Permit Easy Movement in any
DirectionOPW Engineered Systems fabricated and cast ball bearing swivel
joints offer many outstanding features that contribute to their dependability
and long life. Quality construction standards include precision machining
and 100% penetration welding by certified welders. OPW swivel joints allow you
to construct a metal piping system that is moveable, flexible and reliable. You
can count on OPW.
1. Tight SealsO-rings are used to provide a tight seal
without hindering swivel action. Because the grooves are accurately machined
and micro-finished, wear is minimal. Available seals include Buna-N, Viton™,
Teflon™, EPT, Neoprene, and even Kalrez or other specialty seals as needed. All
Teflon™ seals are spring energized, with a 316 stainless steel garter spring.
2. True Ball Bearing Race AlignmentBody and tail sections are locked together
by a double row of ball bearings. Raceways are machined to precise tolerances.
This double race design assures proper alignment and prevents binding caused
by temperature changes or heavy radial loads. Carbon steel swivels have hardened
races to maximize load-carrying capability.
3. Protected Bearing
ChamberProduct cant enter the bearing chamber because of the protective
inner O-ring seal. An outer seal keeps rain, dirt, and other contaminants out.
Both seals hold lubricant in.
4. Long-Life BearingsBall Bearings are
hardened, precision-ground steel. Stainless steel swivels have stainless steel
bearings. All OPW swivels are available with stainless steel bearings on special
5. Easy LubricationAll OPW swivels are pre-lubricated at the
factory, and all _, 1 and submerged service swivels are permanently
lubricated. For swivels requiring field lubrication, a grease fitting between
the races accepts a standard grease gun. Non- lubricated swivels are available
on special order.
6. No Field Adjustment NecessaryBalls are held
in place by factory-installed plugs that never need adjustment to maintain
ball bearing performance.
100% Penetration WeldingOf particular importance
is the 100% penetration welding of fabricated steel and stainless steel swivels.
OPW swivel joints are available in many different styles and sizes, from
_ and up, with threaded, flanged, and butt welding ends. Steam
jacketed swivels as well as split flange units are also available.