UK
APV_PR2_UK-4_082017.qxp
Sampling valve
DELTA PR2
Instruction manual: UK - rev. 4
APV
8
12.
Service Instructions
Manually operated design - PR2 HF
(fig. 12.1.)
The item numbers refer to the spare parts drawing
RN 01.143.0
12.1.
Dismantling from the line system
1.
Shut off line pressure in the product line.
2.
Turn handle
(8)
to the left until the valve is in open position.
3.
Remove flange screw
(4)
and take the complete valve insert out
of the housing
(11)
.
4.
Remove o-ring
(2)
.
5.
Insert a small screw driver through the bore into the spring housing
and into the shaft
(1)
to prevent the shaft from turning.
6.
Remove hexagon screw
(10)
and washer
(9)
and press the
shaft
(1)
into the direction of the PTFE part out of the housing.
7.
Pull the PTFE shaft tip
(1.2)
from the metal part
(1.1)
.
The PTFE tip is destroyed during this action.
8
. Remove the shaft seal
(3)
from the spring housing.
12.2.
Installation of seals and assembly of valve - PR2 HF
1.
Press the slightly greased shaft seal
(3)
into the groove of the
spring housing.
2.
Place the PTFE shaft tip
(1.2)
on the metal part
(1.1)
and lock it
into place.
3.
Push the valve shaft
(1)
with the metal part to the front through the
shaft seal into the spring housing.
4
. Insert a small screw driver into the bore of the spring housing
(5)
and of the shaft
(1)
to prevent the shaft from turning.
5.
Screw the hexagon screw
(10)
with washer
(9)
in the shaft and
tighten it.
6.
Insert the slightly greased O-ring
(2)
.
7.
Press the complete valve insert into the housing
(11)
and fix it
with the flange screws
(4)
.
8.
Check the function of the valve by turning it on and off
several times.
4
11
9
3
1
2
10
8
fig. 12.1.