Installation Of Seat Seal; Manual Installation Of Seat Seal - SPX FLOW APV DELTA RG4 Instruction Manual

APV
APV_RG4_ATEX_UK-0_032018.indd
12.

Installation of Seat Seal

12.1. Manual installation of seat seal (pos. 12).
1. Before assembly provide the seat seal with a thin layer of grease.
The groove for the seat seal must not be greased.
2. Clamp the valve shaft into a vice.
The valve shaft must not be damaged.
Use protective cloth!
3. Press the slightly greased seal at four spots with the wide side to the front into the groove (see
sketch 1).
4. Press the seal with an assembly tool (e.g. screwdriver with rounded edges) at four opposite
spots 1-2, 3-4 into the groove (see sketch 1).
5. Proceed step by step while pressing the seal into the groove. Work alternately at the opposite spots
of the seal groove. See to an even fit of the seat seal.
6. After the installation, press the pointed side of the assembly tool between the seal shoulder and the
groove wall, driving around the complete groove wall. The groove base is vented and the seal
shoulder snaps in place. (see sketch 2).
seal shoulder
1
2
4
Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
sketch 1
seal profile
3
UK
sketch 2
22