65
2/2 Way valve type MK 20
General operating instructions
To ensure the proper operation of our
maintenance-free units care should be
taken to observe the following points:
1.
Prior to installing the valve in the
pipeline system make a check
that the latter system is absolutely
clean to avoid that any particles
left behind by the line mounting
work can be flushed into the valve
when taking the system into ope-
ration.
2.
Valves with threaded connections
should be installed to the pipeline
system in a way that the frictional
connection is not made in the lon-
gitudinal axis of the valve. For
screwing in the pipe, the mounting
tool should be attached to the
valve socket to which the pipe is
mounted. For valves with flanged
connection, care should be taken
that no tensile, compressive and
shearing loads are brought to
bear on the valve because this
could lead to functional trouble.
The direction of flow indicated on
the 2/2-way valves by arrows
should in any case be adhered to.
3.
For the electrical connection, uns-
crew the terminal box cover or
install the plug connectors. Prior
to connecting the cables check
that the voltage applied is as
stated on the rating plate. Take
care to observe the marking atta-
ched to the terminal because if the
connections are wrongly fitted this
may cause damage to the valve
when taken into operation.
items circled are included in
spare part kit
1
connecting port
2
connecting port
3
valve seat unit
4
magnet unit
5
armature-control tube
6
gland
7
gland
8
retaining ring
9
locking ring
10
return spring
11
spring housing
12
locking Ring
13
hex head bolt
14
hex nut
15
lock washer
16
seal (dynamic)
17
seal (dynamic)
18
O-ring
19
gasket
20
terminal box unit
21
sealing ring
22
shading ring
23
appliance plug socket unit
24
seal
