Owner manual

POSITIONER 1067
E-11-
Fig. 11 Fitting to a 2731 continuous valve
with piston drive
Fig. 12 Rear view of positioner (variant 2)
Assembly
Assembly of variant 2 of the positioner to a continuous valve with piston drive.
A set of add-on parts (NAMUR adapter, Fig. 13) is provided for assembling variant 2 of the positioner
to a piston valve (e.g. 2731). It consists of a mounting plate "1", two hollow bolts "2", three O-rings "3"
and two cheese-head bolts M5 "4".
To assemble the positioner on a continuous valve with piston drive, the following steps should be
carried out (Fig. 13):
Place an O-ring "3" in the recess of the mounting plate "1" (drive side). In the case of a large version,
place a second O-ring on the other side of the mounting plate.
Put two cheese-head bolts M5 "4 "from the drive side through the 5-mm drillings in the mounting plate.
Screw the preassembled mounting plate "1" to the two connection pieces of the valve drive with two
hollow bolts "2" so that the lower connection piece is sealed by the O-ring.
Place an O-ring "3" in the groove on the reverse side of the positioner.
Add the positioner to the mounting plate and screw it on with the two cheese-head bolts "4".
3 INSTALLATION
3.1.2 Fitting the positioner variant 2 to a continuous valve with piston drive
Arrangement
A continuous valve with piston drive can be used with variant 2 of the positioner with the external path-
measuring system (Fig. 14). The positioner is placed on the valve and screwed to it (Figs. 11 and 12).
The valve position is transmitted directly via the spring-mounted rod of the path-measuring system (the
linear potentiometer).