Flowserve PM15E Electro-Pneumatic Valve Positioner - Manual (Page 2)

1. STORAGE INSTRUCTIONS
PM15E Positioner Storage and Handling Procedures
PM15E positioners are precision instruments which should be stored
and handled accordingly to avoid problems or damage.
Electro-pneumatic positioners contain electronic components which
can be damaged by exposure to excessive water. Appropriate
precautions should be taken to protect units while in storage.
Warehouse Storage
Stored in original shipping containers, units should be stored in an
environmentally controlled area, i.e., clean, cool (15–26°C, 60–80°F)
and dry, out of direct sunlight or weather exposure.
Field Storage
NOTE: Once the air supply to the positioner is connected and turned
on, internal air bleed will prevent the ingress of moisture and protect
the unit from corrosion. It is recommended that the air supply be left
on at all times.
• If units are installed immediately, turn, and leave on, the air
supply.
• If positioners must be stored outdoors, tighten all covers which
may have loosened in shipment, make sure all open enclosure
points are sealed.
Positioners should be wrapped and sealed air and watertight with
desiccant inside the plastic; units should be securely covered with an
opaque cover and not exposed to direct sunlight, rain or snow.
Units should have all ports sealed and be protected from direct
exposure to weather. For long term storage (>1 month) or overseas
shipment units should be protected with plastic and desiccant.
Potential Damage to Mechanism
When units are stored in hot, humid climates, the daily
heating/cooling cycle will cause air to expand/contract and be drawn
in and out of the positioner housing. Dependent on the local
temperature variations, humidity and dew points and time in storage,
condensation could occur and accumulate inside on the I/P converter
causing erratic operation or failure due to water and corrosion. The
potential for condensation damage is especially high in southern
climates and aggravated if units are exposed to direct sunlight.
For further assistance, please contact your nearest Worcester
distributor.
2. INSTALLATION
Before mounting the positioner, the relationship of the actuator to the
valve must be determined. The actuator can be mounted in-line or
cross-line to the valve. In addition, the actuator can be mounted right-
side-up or inverted. If a spring-return actuator is used, the actuator
can be set up to fail with the valve closed or with the valve open. This
gives the end user a total of eight possible set-up configurations.
A. Mounting Guide
The following notes pertain to Positioner Mounting Guide below.
1) “Inverted” actuator position and “Cross-Line” actuator
mounting applies to sizes 10–20 39 Series actuators only. On
sizes 25 and larger, the output shaft is square, which allows
for the coupling to be indexed 90° to the actuator shaft.
Normal actuator position means that the actuator is mounted
“right-side-up”.
2) For spring-return actuators only: “Fail-Open” actuators have a
“9” in position 3 of the ordering code.
3) To change cam to reverse-acting, remove and reinstall upside
down (see Section 9).
4) For double-acting actuators only: Normal hose positions
refers to that described in Section 2.C, Connections.
Flow Control Division
Worcester Controls
2 Model PM15E Electro-Pneumatic Valve Positioner WCAIM2017
Actuator Valve
Actuator Failure Actuator Supply Position
Mounting Mode Position Rotation Positioner Cam Hoses at Min.
(Note 1) (Note 2) (Note 1) to Open Operation (Note 3) Cam Setting Note 4 Signal
In-Line Fail-Close Normal CCW Direct-Acting Direct-Acting 0° (Min. Signal) When Valve is Closed Normal Closed
In-Line Fail-Close Normal CCW Reverse-Acting Reverse-Acting 90° (Max. Signal) When Valve is Closed Reverse Open
Cross-Line Fail-Close Inverted CW Direct-Acting Reverse-Acting 0° (Min. Signal) When Valve is Closed Reverse Closed
Cross-Line Fail-Close Inverted CW Reverse-Acting Direct-Acting 90° (Max. Signal) When Valve is Closed Normal Open
In-Line Fail-Open Inverted CCW Direct-Acting Direct-Acting 90° (Max. Signal) When Valve is Open Normal Closed
In-Line Fail-Open Inverted CCW Reverse-Acting Reverse-Acting 0° (Min. Signal) When Valve is Open Reverse Open
Cross-Line Fail-Open Normal CW Direct-Acting Reverse-Acting 90° (Max. Signal) When Valve is Open Reverse Closed
Cross-Line Fail-Open Normal CW Reverse-Acting Direct-Acting 0° (Min. Signal) When Valve is Open Normal Open
Actuator Positioner