Disassembly And Assembly Tool - SPX FLOW APV DELTA DE3 Instruction Manual

APV
APV_DE3_UK-7_082017.indd
seal 24, 25
elastomer seal
PTFE seal
assembly tool
assembly mandril
disassembly tip
fig. 1
fig. 2
II
I
Double Seat Valve
DELTA DE3
Instruction manual: UK - rev. 7

13. Disassembly and Assembly Tool

(for lower shaft seal, pos. 24, 25)
For a simple dismantling and installation of the lower shaft seal,
the combi tool (ref.-No. 000 51-13-100/17; H171889) should be
used.
seal lip
Support by this tool is especially recommended for valves of the
small series (DN 40 - 65, 1.5" - 3") for the lower shaft seal cannot be
reached from the top as a result of the narrow fit.
Attention:
Do not damage the seal lip of the PTFE seal during assembly.
To prevent injuries, the disassembly point, if not used, must be
covered by the assembly mandril.
1. Assembly of the PTFE seal (fig. 1, 2)
1) Press the PTFE ring into an oval shape.
2) Introduce the PTFE ring, the wide side to the front, from the top
through the housing intermediate ring into the lower housing by
means of the assembly tool (fig. 1).
3) Round off the PTFE by means of the assembly mandril (fig. 2 / I)
and press it into the groove. Do not strike or beat (fig. 2 / II).
2. Assembly of the elastomer seal (fig. 1, 3, 4)
1) Slightly grease the seal.
2) Introduce the elastomer, the wide side to the front, from the top
through the housing intermediate ring into the lower housing by
means of the assembly tool (fig. 1).
3) Fix the seal by means of the locating groove of the assembly
mandril (fig. 3 / I).
4) Press in the elastomer at one spot between housing flange and
PTFE (fig. 3 / II).
5) Pull the seal completely into the groove by passing around it with
the assembly mandril (fig. 4). Check if the elastomer seal is
evenly installed in the groove.
fig. 3
II
I
fig. 4
UK
20