Flowserve PMV P4 - Manual (Page 4)

4
1. Introduction
Option
Option
P4
The P4 is a pneumatic valve positioner for double acting actuators, rotary or linear. It can
also be used for single acting applications by simply plugging one of the outlet ports, C1 or
C2.
ATEX: II 2 G
It features a standardized foot print, external zero adjustment, gold plated spool valve, positive
internal pressure and a bright visible position indicator. The simple, sturdy design with few
moving parts together with the well proven spool valve design provides long and trouble
free operation. Together with the unit, a wide range of mounting kits are offered for quarter
turn and linear applications.
Calibration and set up is quick and simple, all done by thumb wheels. The unit requires a
minimum of maintenance and the only tool needed is a flat screw driver.
For installation of gauges T-connectors are required.
Always check www.pmv.nu for latest edition of manual.
Special Conditions for Safe Use
The enclosure is made of aluminium and any impact or friction caused by external
objects shall be avoided in the application.
Rubbing of the window with dry fabrics shall be avoided when the positioner is used in
an hazardous atmosphere in order to avoid potentially incendive static discharges.