Dover PSG C100, Installation, Operation & Maintenance Manual

Page: 17 / 24

ALF-13250-E-01 All-Flo 17
PILOT VALVE ASSEMBLY
To assemble the pilot valve, reverse the order of disassembly. Should
process fluid have contact with the pilot valve O-Rings, they should be
replaced as swelling may occur and cause irregular operation. During
assembly, ensure that the open side of the lip-seals are facing outward.
Lubrication of the pilot sleeve assembly, with a non-synthetic lubricant,
is recommended in order to facilitate re-assembly into the intermediate.
Magna-Lube or Magna-Plate are recommended for assembly lubrication
(see detailed parts list for ordering information).
TORQUE SPECIFICATION CHART
RECOMMENDED TORQUE SPECIFICATIONS
1” Pumps
Band Clamps (Manifolds) 80 in-lbs (9.04 N-m)
Band Clamps (Chambers) 16.7 ft-lbs (22.6 N-m)
Chamber Bolts
20 in-lbs (2.26 N-m)
Air Valve Bolts 40 in-lbs (4.52 N-m)
Diaphragm Plates 165 in-lbs (18.6 N-m)
Note: Always torque the chamber clamps prior to the manifold bolts. When reassembling, loosely tighten all
external fasteners adjusting and aligning gradually, in an alternating fashion, tighten to torque requirements
listed above.
Note: When using pumps built with PTFE O-Rings, always replace with new PTFE O-Rings, since the original
O-Rings may not reseal the pump.