VERDERAIR_VA-C manual_rev2_2020_UK_(uk) | 1.12.2020
14
For VA-C50 and VA-C130 only :
put the diaphragm shaft o-rings (20) in the
groove of the centre housing, by forming
them as kidney’s with locking ring pliers (see
Figure 13).
Push them into the groove with a round tool.
On the same way the diaphragm shaft bear-
ings can be placed in the groove.
Assembly of the diaphragms and diaphragm
shaft.
Screw the diaphragm shaft screws (18) into
the diaphragms and tighten. Screw one dia
-
phragm (17) completely into the diaphragm
shaft (19) (see Figure 14).
Figure 14
Push the shaft in the centre housing (1) and
screw the second diaphragm (17) completely
into the shaft(19) (see Figure 15).
Figure 15
Adjust, when necessary, the position of the
holes for the assembly pins by turning one
of the diaphragms a little backwards.
Assembly of the housing
.
Place O-rings (22) into side sections (2 and
3). Place the valve ball (11) or the cylindrical
valve (10) in to the side section integrated
suction seat (see Figure 16.1), place valve
seat (12) in to side section and pay attention
that valve seat flow bore will be in the center
with internal channel of side section (see Fig-
ure 16.2). Put second valve ball or cylindrical
valve inside the seat. Place an o-ring (14) on
the top edge of valve seat (see Figure 16.3)
and close valve with valve plug (09) using
special tool. Screw in plug flush to side hous
-
ing top surface (Figure 16.4). Preassemble
closed nuts and one flat washer at the one
end of each assembly pin. Push the assembly
pins (23) through one of the side housings
(Figure 16.5).
Figure 16
Figure 13
