¼" Pro-Flo metal pump (P0.25) - Process Pumps

REASSEMBLYUpon performing applicable maintenance to the air distributionsystem, the pump can now be reassembled. Please referto the disassembly instructions for photos and parts placement.To reassemble pump, follow the disassembly instructionsin reverse order. The air distribution system needs to beassembled first, then the diaphragms, and finally the wettedparts. Please find applicable torque specifications in thissection.Rubber/TPE diaphragm configuration Figure 1 Teflon ® diaphragm configuration Figure 2There are two types of diaphragm configurations available forthe P.025: 1) Rubber or TPE diaphragm, and 2) Teflon ®primary diaphragm with back-up O-ring. Observe the "ThisSide Out" marking on the convex side of the diaphragm.Install the disc spring, inner piston, diaphragm, back-upO-ring (Teflon ® -fitted models only), and the outer piston tomain shaft assembly. (NOTE: Teflon ® Fitted pumps employ anintegral piston diaphragm). Add a small amount of Loctite 242to the bore of the main shaft. Set up time is 20 minutes.Tighten outer piston to torque value found below.Lubricate the main shaft assembly with NLGI grade 2 molybdenumdisulfide based grease or equivalent and insert throughmain shaft bore in center section. Assemble the other sideand torque to proper value as listed below. Please review thephotos above for proper alignment.TORQUE SPECIFICATIONS FOR MODEL P.025 PUMPSDescription of PartAir ValveOuter Piston, Rubber and TPE DiaphragmsClamp BandManifold BoltMaximum Torque[2.3 m-N] 20 in.-lbs.[4.6 m-N] 40 in.-lbs.[2.3 m-N] 20 in.-lbs.[5.6 m-N] 50 in.-lbs.• Apply a small amount of Loctite 242 to the internal threads ofthe shaft prior to reassembly.WIL-10080-E-02 15 WILDEN PUMP & ENGINEERING CO.