Actuator; Service Instructions - SPX APV DELTA DF plus 2 Operating Manual

DELTA DFplus2 - UK1 / qxd.12.2004
Double Seat Valve
DELTA DFplus2
Operating Manual: rev. 1
11.

Service Instructions

11.3.3 Assembly of valve insert in the housing
a. Introduce the complete valve insert carefully in the valve
housing (1). The centering pin positions the yoke flange.
b. Tighten the hex. screws (22) crosswise.
c. Fasten the hex. screw (11) M8 x 6 mm in the open threaded bore
of the yoke flange.
d. Mount the pneumatic air and cleaning lines.
e. Installation of valve feedback
Fine adjustment:
Push in the feedback switches until stop.
Fine adjustment:
By slight displacing motion of the switch, the shift point can be
adjusted if necessary.
Observe the luminous diode at the switch during adjustment.
- Fix the switch with the clamp screws.
12.

Actuator

Attention:
!
(The item numbers refer tot the spare parts drawing RN 01.053.22.)
I. Replacement of o-rings
(Remove the valve yoke and the seat lift actuator (if necessary)
from the actuator.) Disassembly as described in 11.1 and 11.2.
a. Dismantle the lower actuator o-ring (2).
b. Remove the hex. screws and lift off the cover (3).
(If the valve is equipped with a seat lift actuator, it can be omitted.)
c. Dismantle the upper actuator o-ring (2).
II. Assembly of actuator
a. On both sides of the actuator, slide a greased o-ring (2) via the
piston rod into the groove on the face.
b. Push the actuator cover (6) over the piston rod (air supply side)
and fasten it with the screws (5).
(If the valve is equipped with a seat lift actuator, it can be omitted.)
Actuator is under spring force.
Do not open it.
UK
18