
21
APV_SW4_UK-4_082017.indd
UK
Single seat and change-over valve
DELTA SW4
Instruction manual: UK - rev.4
APV
14. Assembly Tool
The assembly tool consists of:
- nut
- thrust ring
- ring with venting nose
- housing
- threaded bolt
Installation of seat seal in the valve shaft
1.
Insert the valve shaft into the housing in such a way that
the seal groove is in the housing.
2.
Clamp the shaft into the housing by means of the threaded bolt.
Clamp the housing in a vice.
3.
Slightly grease the seat seal with APV assembly grease.
Then install the seal on the ring with the venting nose until it stops.
4.
Introduce the ring with the installed seat seal into the housing and
press it down until it stops sensibly.
5.
Insert the thrust ring into the housing. Screw on the nut and tighten
it with a hook spanner until it stops.
6.
Release the nut. Take ring and thrust ring off the housing.
7.
Take housing out of the vice, take off the threaded bolt.
Detach the valve shaft from the housing
Check the even fit of the seat seal.
To simplify the installation of the seat seal, the following
assembly tools are available:
14.1. Assembly tool for seat seal
DN
Inch
Reference No.
ID-No.
25
1"
000 51-13-110/17
H179465
40
1,5"
000 51-13-111/17
H179466
50
2"
000 51-13-112/17
H179467
2,5"
000 51-13-120/17
H179468
65
000 51-13-113/17
H179469
3"
000 51-13-121/17
H179470
80
000 51-13-114/17
H179471
100
4"
000 51-13-115/17
H179472
housing
valve shaft
threaded bolt
seat seal
ring
nut
thrust ring