Waukesha Cherry-Burrell
®
Brand W70 Series Mix Proof Valves Maintenance
10/2023 95-03087 Page 31
Tef Flow
®
P Seat
Replacement with W71
Stems
Upper Stem Tef Flow
®
P Seat Removal
W71 Upper Stem Tef Flow
®
P Seat Removal
1. With the upper stem in hand, take note of the orientation of
the Tef Flow
®
P seat.
2. (Applies to 2” valves only) Install the stem sleeve plug (item
3*) over the stem.
NOTE: Item 3* is only required for correct fit on 2" valves.
3. Place the PTFE installation base (item 1) over the stem,
making sure that the chamfered side rests on top of the stem
plug and the flat side of the base faces away from the stem
plug.
4. Hold the installation base in place on the stem in one hand,
then take the aluminum Tef Flow
®
P seat removal tool (item
2) and carefully set it on the existing seat ring. Make sure that
the removal tool’s pins rest only on the seat, not directly on
the stem plug, as this can damage the metal stem plug itself.
5. With the stem facing down, carefully place the stacked
components onto an arbor press, with the aluminum seat
removal tool (item 2) on top.
6. Using an arbor press, apply even pressure directly to the
removal tool until the seat is cut into three pieces.
7. Remove the stacked components from the arbor press, and
carefully remove the tools and seat pieces from the stem.
8. Inspect the stem and stem plug for damage. Clean up any
minor scratches with an emory cloth, if needed.
Figure 29 - Upper Stem Tef Flow
®
P
Seat Removal (Kit # 132990+)
* used with 2" W71 ODT valves only
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