DB22 SERIES ASSEMBLY, INSTALLATION AND OPERATION MANUAL Literature ID No.
TABLE OF CONTENTS Description Page Number Model Number/Serial Number.............................................................................................. 4 Important Notice.................................................................................................................. 4 Chemical Reaction Disclaimer.............................................................................................. 4 Safety Precautions ...................................................................
Model Number and Serial Number Record the model number and serial number below for future reference. This is important information when ordering replacement parts or when technical assistance is required. The numbers are found on a label located on the motor adapter. MODEL NUMBER ___________________________ SERIAL NUMBER __________________________ IMPORTANT NOTICE U.S.
WARNING: Hot surfaces. This pump is capable of handling liquids with temperatures as high as 220º F (104º C). This may cause the outer areas of the pump to become hot as well and could cause burns. WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking out the motor from the power supply during maintenance or service. WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals.
DB22 Capabilities Maximum Working Pressure: 90psi (6.2 bar) Maximum Temperature: Polypropylene -180º F (82º C); PVDF – 220º F (104º C) NOTE: Maximum temperature is application dependent. Consult a chemical resistance guide or the chemical manufacturer for chemical compatibility and temperature limits. Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for occasional solids. Maximum hardness is 80 HS. Maximum concentration is 10% by weight.
DB22 Assembly, Installation and Operation Unpacking and Inspection Flange hole thread size: Unpack the pump and examine for any signs of shipping damage. If damage is detected, save the packaging and notify the carrier immediately. 90 B5 = M10 x 1.5 100/112 B5 = M12 x 1.75 132 B5 = M12 x 1.75 Torque bolts to the following: 90/100/112 B14 frame (M8) = 130 in-lb (14.7 N-m) 132 B14 (M10) frame (M10) = 240 in-lb (27.1 N-m) 90 frame B5 (M10) = 240 in-lb (27.1 N-m) 100/112/132 B5 (M12) = 480 in-lb (54.
Section II - Installation Mounting – Pump foot should be securely fastened to a solid foundation. If the pump was received with plastic shipping shims, these may be used as additional support for the motor feet. Figure 4 CAUTION: The NPSH available to the pump must be greater than the NPSH required. NPSH available should be two feet (.6 meters) greater than NPSH required. Figure 5 5. Install the pump end on the motor/drive magnet assembly. • Install the pump as close to the suction source as possible.
Section III - Start-up and Operation Section IV - Maintenance Start-up and Operation Recommended maintenance schedule 1. This pump must be filled from a flooded suction tank (gravity) or primed with liquid from an outside source. The DB22 is not self-priming. The recommended maintenance schedule depends upon the nature of the fluid being pumped and the specific application.
8. Remove the o-ring (item 6) from the barrier and inspect for chemical attack, swelling, brittleness, cuts, etc. 2. Firmly grab the motor adapter and pull straight out to dis-engage the motor and pump. See figure 10. 9. Visually inspect the outer drive (item 9) for rubbing, damage, corrosion or loose magnets. NOTE: If the pump has the optional o-ring sealing option (available on 184 and 215 frame Figure 10 pumps only), make sure o-ring (item 8B) does not fall out of the motor adapter (motor end).
Bushing Replacement 5. Carefully install the impeller/inner drive assembly (items 3A, 3, 4, 4A) by sliding it over the impeller shaft in the barrier. It is normal for the impeller/inner drive to pop up a slight amount due to magnetic forces. See figures 22 and 23. 1. To remove the bushing, place the impeller/inner drive assembly (items 3A, 3, 4, 4A) with the impeller facing up in an arbor press. If necessary support the bottom of the assembly with blocks to allow the bushing to fall out. Insert a 1” (25.
DB22 PART NUMBER EXPLANATION NOTE: Pump end includes wetted components, drive magnet and motor adapter; wet end includes wetted components only. Part Number Explanation Base model number contains standard components. Where standard components aren’t suitable, add the alternative component code letter after the base model number to substitute components. Example: DB22P-E-U-21 is constructed of the listed base model components except it has an EPDM O-ring, union connections, and a 213TC motor adapter.
DB22 EXPLODED VIEW PARTS DIAGRAM 13
DB22 Spare Parts List Item 1 Qty 1 2 1 3 1 3A 1 4 1 4A 1 5 1 6 1 7 1 8 1 8A 1 Pump Material Polypropylene Description Housing NPT threads & ceramic ring BSP threads & ceramic ring FRP flanges 2"x2" & ceramic ring FRP flanges 3"x2" & ceramic ring Steel flanges 2"x2" & ceramic ring Unions & ceramic ring NPT threads & SiC ring (optional) BSP threads & SiC ring (optional) FRP flanges 2"x2" & SiC ring (optional) FRP flanges 3"x2" & SiC ring (optional) Steel flanges 2"x2" & SiC ring (opti
DB22 Spare Parts List - con’t Item 8B 9 Qty 1 1 9A 1 9B 2 10 1 10A 1 Pump Material Polypropylene Description Rear Motor Adapter O-Ring (NEMA motors only) Buna EPDM FKM Outer Drive Magnet Assembly with Retaining Ring 182/184TC frame (includes set screws) 143/145TC frame(includes set screws) 213/215TC frame (includes set screws) 90 frame 100/112 frame 132 frame Retaining Ring Only 182/184TC frame 143/145TC frame 213/215TC frame 90 frame 100/112 frame 132 frame Set Screws NEMA motor only Motor
Hardware- All DB22 Models Item Qty 11 10 12 13 10 10 14 4 15 4 16 4 17 1 18 1 19 1 20* 4 21* 4 22* 4 Description Stainless Steel Titanium 106501 106502 106503 106504 106505 106506 106495 106511 106498 106512 J101023 105762 Housing Bolt Housing Lock Washer Housing Flat Washer Motor Adapter Bolt All frame sizes except 213/215TC 213/215TC Motor Adapter Lock Washer Motor Adapter Flat Washer 106497 Drive Bolt (IEC Only) 105770 90 frame 105774 100/112 frame 106507 132 frame Dr
DB22 Impeller Assemblies Closed Style Thrust Ring PTFE SiC Thrust Ring PTFE SiC Impeller Material Polypro PVDF Polypro PVDF Impeller Material Polypro #1 #1A #2 #2A #2B #2C #3 #3A #3B #3C 4 #4A 7.25" 7.13" 7.00" 6.88" 6.75" 6.63" 6.50" 6.38" 6.25" 6.13" 6.00" 5.
Troubleshooting Excessive Power Consumption General Notes: • • • • • • Do not pump liquids containing ferrous metal fines. If magnets decouple, stop pump immediately. Operating the pump with the magnets decoupled will eventually weaken the magnets. Contact our Technical Service Department If you have any questions regarding product operation or repair: Phone: 1-800-888-3743 E-mail: techservice@finishthompson.
