ME225
PowerTorq Series
Pneumatic Actuator Instruction Manual
WARNING
Failure to follow these instructions or to
properly install and maintain this
equipment could result in an explosion
and/or fire causing property damage and
personal injury or death.
Install, operate and maintain Marshall
Excelsior Co. equipment in accordance
with federal, state, and local codes and these
instructions. The installation in most states
must also comply with NFPA Pamphlet #58,
ANSI K61.1 and DOT standards.
Proper installation of remote actuation
devices should include thermal protection
to close the internal valve in case of a fire.
This pneumatic actuator kit includes thermal
protection.
Only personnel trained in the proper
procedures, codes, standards, and regulations
of the LP-Gas or anhydrous ammonia (NH3)
industries should install and service this
equipment.
INTRODUCTION
Scope of Manual
This manual covers instructions for the ME225
Pneumatic Actuator kit. This kit allows for remote
operation of the ME990-10 (Fisher
®
C407) internal valve.
DESCRIPTION
The ME225 Marshall Excelsior Co. Pneumatic
Actuator kit fits the ME990-10 (Fisher
®
C407) 1-1/4”
NPT internal valve to allow for remote valve operation
utilizing air pressure. Applying air pressure to the
actuator moves the drive coupling and the internal
valve shaft to open the valve. Upon loss of air pressure,
the valve’s operating lever immediately returns to the
closed position.
Type ME225 –
For ME990-10 (Fisher
®
type C407)
internal valve (1-1/4” model)
This kit features a spring return design that eliminates
the need for an air return.
SPECIFICATIONS
Pressure Source: Air
Cylinder Pressure Limits: Minimum – 20 psig
Maximum – 125 psig
Recommended – 30-50 psig
Temperature Limits: -60°F to 250°F
Return Mechanism: Spring only – no air
MAINTENANCE
A simple preventive maintenance program for the
valve and its controls will eliminate many potential
problems.
Marshall Excelsior Co. recommends these steps be
conducted at least once a month:
1. Inspect the operating lever to see that it operates
freely.
2.
Confirm the actuator fully opens and closes the
internal valve without sticking. Keep the actuator’s
drive coupling free of any build-up of mud,
corrosion, or other foreign material. Such a
build-up could prevent the actuator from closing
which could jam the internal valve in the open
position. Do not permit this condition to occur.
3. Because the actuator has a sealed housing,
internal lubrication is not required. For smooth
operation, lubricate the operating coupling joint.
4. Inspect, clean and oil all operating controls.
Marshall Excelsior Co.
1506 George Brown Drive Marshall, MI 49068
Phone (269) 789-6700 Fax (269) 781-8340
The contents of this publication are for informational purposes only. While every effort has been made to ensure accuracy, these contents are not to be construed as warranties or guarantees, expressed or implied, regarding the products or services described herein or
for their use or applicability. Marshall Excelsior Co. reserves the right to modify or improve the designs or specifications of such products at any time without notice. The MECTM logo is the trademark of Marshall Excelsior Co. Fisher® and Fisher® Internal Valves are
the trademarks of Emerson Electric Co.
Instruction #461 Rev B 1/12
