Lutz-Jesco MEMDOS SMART LD, Руководство по эксплуатации

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Hydraulic installations
Hydraulic connections
19
© Lutz-Jesco GmbH 2015
Subject to technical changes.
150302 BA-10102-02-V02
Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD Operating Instructions
8.4.1.2 Size 6/12
a
b
c
d
Fig. 13: Hose clip 6/12 (internal and external diameter in mm)
Size 6/12 hose clips only have a union nut. It clamps the hose onto the
grommet of the connection piece and at the same time fastens on the
dosing pump's valve.
Perform the following working steps:
1.
Cut the hose
a
to length neatly and at an exact right angle.
2.
Place a gasket that is suitable for the dosing medium between the
connection
d
and the valve.
3.
Push the union nut
b
and the cutting ring
c
over the hose
a
.
4.
Press the end of the hose
a
onto the grommet of connection piece
d
. You can do this more easily by moistening the end of the hose on
the inside or applying some lubricant to the grommet in the cone
area. You should push at least two thirds of the hose onto the
grommet of the connection piece.
5.
Push the cutting ring
c
over the hose
a
into the cone area on the
grommet of connection piece
d
.
6.
Screw the union nut
b
onto the valve of the dosing pump.
ü
Hose clip connected.
8.4.2 Making the bonded connection
a
b
Fig. 14: Glue-in connection
Perform the following working steps:
1.
Cut the PVC tube to length.
2.
Push the union nut onto the tube.
3.
Stick the bonded coupling sleeve
b
to the tube (follow the
instructions of the adhesive manufacturer).
4.
Screw the union nut onto the valve of the dosing pump. Use a gasket
that is suitable for the dosing medium.
ü
Bonded connection made.
8.4.3 Making the cemented connection
a
b
Fig. 15: Cemented connection
Perform the following working steps:
1.
Cut the tube to length.
2.
Cut the thread
b
onto the end of the tube.
3.
Push the union nut
a
onto the tube.
4.
Seal the thread
b
. When choosing your sealing material, take into
account its resistance to material, temperature and pressure.
5.
Screw the union nut onto the valve of the dosing pump. Use a gasket
that is suitable for the dosing medium.
ü
Cemented connection made.
i Under normal conditions, you only need to screw the hydraulic
connections finger-tight. However, due to the material settling,
the pre-tension of the screw connection can slacken. This
means that you must re-tighten the screw connection before
carrying out commissioning.