Rack and Pinion Actuators are designed to operate ball, butterfly,
plug and other valves, which require a quarter-turn movement for
either on/off or throttling service. Offering the most economical
solution when valve torque requirements are more or less constant
throughout the stroke. They are available in three main types
- the RP, RH Series; and R Range.
Rack & Pinion
actuators
RP/RH Range Overview
RP (pneumatic) and RH (hydraulic)
Range rack and pinion actuators are designed to provide
a rotary, quarter-turn movement for either on/off or modulating
duty. They are particularly well suited for applications
where the valve torque demand is relatively uniform throughout
the stroke.
Five body sizes produce torque output up to 3,500 Nm (30,000
inch pounds) at operating pressures up to 12 bar (174psi)
for RP and 230 bar (3,300 psi) for RH. They are available
in either double acting or spring return configurations.
R Range Overview
Rotork R Range rack and pinion actuators
satisfy a wide range of industrial and process applications.
They feature a durable, compact twin rack design and are
pre-lubricated for life.
The range is manufactured in eleven
different body sizes providing up to 4,200 Nm (36,600 inch
pounds) of torque at a maximum operating pressure of 8 bar
(116 psi) and is available in both double acting and spring
return configurations. They provide 90° of rotation
with a constant torque output throughout the stroke.
