SPX FLOW APV DELTA SD4 Series User Manual

25
APV_SD4_ATEX_UK-0_122018.indd
UK
Double seal valve
DELTA SD4-ATEX
Instruction Manual: UK - rev. 0
APV
15. InstallationofSeatseal
15.2.  Manualinstallationofseatseal(pos.12)
1. Before assembly, the seat seal must be provided with a thin layer of grease.
The receiving groove for the seat seal must not be greased.
2. Clamp the valve shaft in a vice.
The valve shaft must not be damaged.
Use protective braces.
3. Press the slightly greased seal at four spots with the wide side to the front into the receiving groove
(seesketch1).
4. Use the assembly tool (or screwdriver with rounded edges) to press the seal at four opposite spots
1-2,3-4into the groove (seesketch1).
5. Pressthesealstepbystepintothegroove.Workalternatelyatoppositespots.Seetoanevent
of the seat seal.
 6. At the end, place the assembly tool between the seal shoulder and the groove wall. Work all around
the circumferences of the groove. The groove bottom is vented and the seal shoulders are locked in
place by this process (seesketch2).
4
1
32
sealshoulder
sealprofile
Sketch1
Sketch2

SPX FLOW APV DELTA SD4 Series Specifications

General

Brand	SPX FLOW
Model	APV DELTA SD4 Series
Category	Control Unit
Language	English