SANDPIPER S20 Non-Metallic - Manual (Page 16)

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• Model S20 Non-Metallic
Air Valve with Stroke Indicator Assembly
ATEX Compliant
Note: Stroke Indicator is standard on Spill Containment models
Pilot Valve Assembly Parts List
Item Part Number Description Qty
1 031-146-000 Air Valve Assembly 1
1-A 031-143-000 Sleeve and Spool Set w/Pins 1
1-B 095-094-559 Body, Air Valve 1
1-C 132-029-552 Bumper 2
1-D 165-096-559 Cap, Muffler 1
1-E 165-098-147 Cap, End 2
1-F 530-028-550 Muffler 1
1-G 560-020-360 O-Ring 8
1-H 675-044-115 Ring, Retaining 2
1-J 710-015-115 Screw, Self-Tapping 4
1-K 210-008-330 Clip, Safety 1
1-M 560-029-360 O-Ring 2
For Pumps with PTFE Coated Hardware:
1 031-146-002 Air Valve Assembly 1
1-J 710-015-308 Screw, Self Tapping 4
(includes all other items on 031-146-000 above)
For Pumps with Alternate Mesh, Sound Dampening
Mufflers or Piped Exhaust:
1 031-147-000 Air Valve Assembly 1
(includes all items on 031-146-000 minus 1-D, 1-F, & 1-J)
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1: Remove end cap retainer (1-H).
Step 2: Remove end cap (1-E), bumper (1-C).
Step 3: Remove spool part of (1-A) (caution, do not scratch).
Step 4: Press sleeve (1-A) from body (1-B).
Step 5: Inspect O-Ring (1-G) and replace if necessary.
Step 6: Lightly lubricate O-Rings (1-G) on sleeve (1-A).
Step 7: Press sleeve (1-A) into body (1-B).
Step 8: Reassemble in reverse order.
Note: Sleeve and spool (1-A) set is match ground to a specified clearance
sleeve and spools (1-A) cannot be interchanged.
NOTE: CHECK GAP AFTER ASSEMBLY
TO INSURE COMPLETE
INSTALLATION OF RETAINING RING
MODEL SPECIFIC
4: AIR
END