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Assembled Detail of Air Assist Check Valve
1
2
PTFE side faces down, toward fluid.
Located inside assembly of items 1 and 5.
2
1
16 308049
Parts
Model 222909, Series A
Stainless Steel Wiper Plate
with PTFE-coated Wiper
and UHMWPE Backup
Valve Assembly Procedure
(see Detail below)
1. Assemble all wipers and the clamp (9) to the plate
(5) as shown at left, before assembling the valve.
2. Insert the seal (19) in the hole (K) of the collar (1).
Align the hole and the flat of the guide (15) with the
hole (L) in the collar, and install the guide. Screw
the elbow (11) into the hole (L) until snug. Do not
overtighten. The guide (15) should be held from
rotating by the elbow (11) but should not be
clamped firmly in place.
3. Slide the nut (13) and seal (19) onto the stem (14).
Press the pin (12) into the hole in the stem (14)
until the pin bottoms out.
4. Insert the stem (14) into the hole (K) so the pin
(12) travels in the slot of the guide (15). Push the
seal (19) down into the hole (K) and tighten the nut
(13) snugly – do not overtighten. (Stem (14)
should not rotate more than 90_).
5. Operate the valve a few times to ensure proper
assembly.