KM 255 en
16
15.720045-V1.0
diaphragm gap (the manometer indicates “0” when the pump is running and when it is
stopped).
If one of these diaphragms breaks, the dosing or hydraulic medium penetrates into the
intermediate gap and, when the ball is removed, into the valve. The system pressure is
therefore impinged on the valve and the contact manometer is activated. Depending on
the design of the system, the electrically isolated reed contact can trigger an alarm device
or the pump can be switched off.
The contact is triggered at the preset pressure as is shown in the table below:
!
Warning
The contact manometer (Ex) in explosion protected version with post switch
should be used if the pump is fitted with a flameproof motor.
4.2
Dimensional Drawing
4.3
Weight
Part number of
manometer
Description/Use
Set pressure
541-011
for pumps up to10 bar
manometer 0 - 10 bar
1,5 bar
541-011.1
for pumps up to10 bar
flameproof manometer 0 - 10 bar
1,5 bar
Z1
l / l'
d
b
g
j
c
n
k
f
fx
m
mx
h
a
e
k
∅
9mm
Z1
for double pump, motor turned by 180°
fx, mx
for double pumps
l
for electrical stroke adjustment
l’
or pneumatic stroke adjustment
Dimensions
Type
Dimensions in mm
a
b
c
d
e
f
fx
g
h
j
k
l
l’
n
m
mx
KM 255
510
492
156
254
228
185
260
126
869
10
253
235
413
180
225
300
Type
Dosing Head Material
Weight [kg]
Single / Double pump
KM 255
PVC, PP, PVDF
55
63
1.4571, 2.4610
65
83
Содержание KM 255
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