Flowserve PM15E Electro-Pneumatic Valve Positioner - Manual (Page 3)

B. Mounting Instructions for a Direct-Acting PM15E to a Spring-
Return or Double-Acting 39 Actuator:
The most common installation configuration is with the actuator
mounted in-line, direct-acting, and with spring return set for fail-
closed. Direct-acting means that as the signal increases, the valve
travels in the open direction.
1) Close the valve/actuator assembly if it is not already closed
(fully CW).
2) Remove the position indicator, if any, from the actuator shaft.
3) Attach the mounting bracket to the top of the actuator such
that the indicating scale is upright and on the same side of the
actuator as the actuator nameplate. Use four (4) screws and
lockwashers supplied with mounting kit.
4) Place coupling on actuator shaft. DO NOT tighten set screws
at this time.
5) Install the indicating arm and locknut on the coupling such
that the end of the arm points downward.
6) Place the positioner on the bracket so that the actuator
nameplate and the side of the positioner with the zero
adjustment are on the same side. Positioner is mounted to
bracket using mounting adapter and screws (5). See
illustration below.
7) Align the mounting holes and then use the two (2) 5 /
16
-18
socket head cap screws, lockwashers, hex nuts, and rubber
washers (between bracket and positioner) supplied with the
mounting kit to fasten the positioner to the bracket.
8) Tighten the set screw at the upper end of the coupling to the
positioner shaft (seat the set screw in the positioner shaft
groove). The other two set screws will be tightened after the
actuator is cycled 90°. Proper alignment of the positioner
spindle to the actuator shaft is very important since improper
alignment can cause excessive wear and friction to the
positioner.
C. Connections
Air connections are tapped for 1 /
4
" NPT male connectors and are
clearly marked. Gauge ports Ip, P, S, C1, C2 are 1 /
8
" NPT. We
recommend use of tape, Loctite ® 577 or similar for sealing.
Electrical connection on I/P unit accepts 1 /
2
" NPT cable gland.
Port I Not used and will be plugged.
Port S Supply air, maximum 0.9 MPa (125 psi),
minimum 0.15 MPa (21 psi) for PM15E.
Port C1, C2 Actuator connections (0.2-0.9 MPa).
C2 opening port.
OUT Exhaust air port. Do Not Block!
Port Ip Used as air passage to I/P unit.
Port IE Input electric signal (4-20 mA)
(on the I/P unit).
Port P Gauge port for I/P unit output pressure
(on the I/P unit).
Ports P, S, C1 and C2 are sealed with plugs. To install gauges,
unscrew plugs and replace with gauges. Gauges for these ports
are supplied by customer.
We recommend use of tape, Loctite ® 577 or similar for sealing.
Port OUT is for venting the unit. All air from the positioner,
actuator and I/P unit is vented to atmosphere through this port.
Do not block this port. If port is covered or plugged, remove
Flow Control Division
Worcester Controls
WCAIM2017 Model PM15E Electro-Pneumatic Valve Positioner 3
5