DSFV005 FTI Drum Pump Tube Exploded View Diagram Repair Parts Breakdown. Finish Thompson SFV48 SF Series Plastic Sealless Barrel Pumps PDF Manual. Replacement High Flow Impeller, Coupling Insert, Coupling Half, Spacer Bushing, Bearing, Shaft, Seal, Head, O-Ring, Discharge Spout, Nut, Inner Tube, Center Support, Shaft Sleeve, Outer Tube, Diffuser & Diffuser Cover.