Samson 3271, Монтаж и эксплуатация, Страница: 23 / 36

EB 8310-8 EN 23
Mounting and start-up
Example: Preloading is required for a signal
pressure range of 0.8 to 2.55 bar. 20 % of
this span corresponds to 0.27 bar. Therefore,
the signal pressure range is shifted by
–0.25 bar to 1.15 to 2.55 bar. The new low
-
er signal pressure range value is 1.15 bar
and the new operating travel 200 mm.
Î
Write the new signal pressure range of
1.15 to 2.55 bar on the actuator name
-
plate as the operating range with pre -
loaded springs.
A1 Top diaphragm case
A2 Bottom diaphragm
case
A20 Hexagon screw
A21 Hexagon nut
A22 Hexagon bolt
(preloading)
A23 Hexagon nut
(preloading)
A24 Blanking plug
A25 Washer
A180
Distance ring
A22
A23
A24
A25
A20
A21
A1
A180
A2
Fig. 5: Actuator with clamping nuts and bolts