Keystone MRP and MRA Pneumatic Actuators0 pages

Keystone MRP and MRA Pneumatic Actuators

KEYSTONE

A comprehensive range of pneumatic actuators,
providing compact, reliable and economical powered
operation for all types of quarter-turn valves

Features
• Direct mounting to all Keystone butterfly
valves.
• Double rack & pinion design nullifies
sideloads on the pinion shaft, minimizing
bearing wear and extending life.
• Double acting or spring return models
utilize the same compact body design.
• Aluminum body, hard anodized externally
and internally, for corrosion and wear
resistance.
• Electrostatic powder coating (ESPC) finish,
external on body, internal and external
on end caps, protects against corrosive
environments.
• Adjustable travel stops.
• Safe end cover bolting requiring no special
tools.
• Anti-blowout drive pinion.
• Over travel adjustment (at each end) +5°.
• Under travel adjustment (at each end) -10°.
• Easy field conversion between DA and SR
models.

Mounting specifications

Technical data

Actuator to valve:
Keystone standard
Accessories:
NAMUR VDI/VDE 3845 or Keystone
standard

Torque output range:
Double acting 204 - 22902 lbs in
Spring return 69 - 10155 lbs in
Operating medium:
Air (dry or lubricated)
Travel adjustment:
Over travel (at each end) +5°
Under travel (at each end) -10°
Increased under travel is available, on
request.
Temperature range: -20°F to 210°F
Air supply pressure: 120 psi maximum

Keystone and K-LOK are either trademarks or registered trademarks of Pentair Valves & Controls or its affiliates
in the United States and/or other countries. All other brand names, product names, or trademarks belong to their
respective holders.

www.pentair.com/valves

Pentair reserves the right to change the contents without notice

KEYMC-0153-US-1306