Brochure

Rugged Reliability and
Exceptional Shutoff for
Long Product Life

From seals to bearings, springs
to diaphragms, every Fisher rotary
control product is designed to
improve product life.
 They are tested to a minimum
of 25,000 cycles -- Hot air to
385°C (725°F), high-pressure
water to 51 bar (740 psig), and
steam at 28 bar (400 psig) and
371°C ( 700°F)

Mechanical tests determine the
effects of cycle life, fatigue, vibration,
galling, wear and corrosion.
 We simulate a lifetime of use in
hours at our global, world-class
test facilities.
We test until convinced the seal is
good enough for you.