Finish Thompson DB6, DB 6H, DB 7, DB 8, DB 9 User Manual

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DB6, 6H, 7, 8, 9, 10 Series

Centrifugal Pumps

Assembly, Installation and

Operation Manual

EU Declaration of Conformity

Finish Thompson Inc. hereby declares that the following machine(s) fully comply with the

applicable health and safety requirements as specied by the EC Directives listed. The product may not be taken into service until it has been established that the drive motor for the centrifugal pump complies with the provisions of all relevant EC Directives. The complete product complies with the provisions of the EC Directive on machinery safety provided motors carry CE marking.

This declaration is valid provided that the devices are fully assembled and no modications are made to these devices.

Type of Device:

Centrifugal Pumps

Models:

AC/AK/AV - 400/500/600/800 DB-3/4/5/5.5/6/6H/7/ GP-11/22/32 8/9/10/11/15/22

KC-3/4/5/5.5/6/6H/8/10/11/22/32 MSKC MSVKC

SP-10/11/15 UC-1516/1518/326 VKC-5.5/6/6H/7/8/10

EC Directives:

Machinery Safety (2006/42/EC)

Applied Harmonized Standards:

EN ISO 12100 Part 1 EN ISO 12100 Part 2

EN 809

Manufacturer:

Finish Thompson Inc.

921 Greengarden Road

Erie, Pennsylvania 16501-1591 U.S.A

Signed,

President

April 19, 2010

Person(s) Authorized to Compile Technical File: Michael Smith Engineers Limited

Oaks Road, Woking, Surrey

GU21 6PH, UK

Telephone: 01483 771871

Table of Contents

Important Information - Read Me First

Model Number/Serial Number .................................................................................................. 1

Important Notice ........................................................................................................................ 1

Chemical Reaction Disclaimer .................................................................................................. 1

Safety Precautions ...................................................................................................................... 1

Installation/Operation Precautions ........................................................................................... 2

Safety Precautions for ATEX Pumps ........................................................................................ 2

Temperature Classication ........................................................................................................ 2

DB6 - 10 Capabilities .................................................................................................................. 2

Minimum Flow Rate ................................................................................................................... 2

Maximum Motor Power ............................................................................................................. 2

Unpacking and Inspection ............................................................................................................... 3

Section I - Assembly .......................................................................................................................... 3

Pumps with Motors ..................................................................................................................... 3

Pumps without Motors ................................................................................................................ 3

Section II - Installation

Mounting ...................................................................................................................................... 4

Piping ............................................................................................................................................ 4

Motor/Electrical........................................................................................................................... 4

Section III - Start-up and Operation ............................................................................................... 4

Shutdown ...................................................................................................................................... 4

Flush Systems ............................................................................................................................... 5

Optional Drain Installation ......................................................................................................... 5

Section IV - Maintenance

Recommended Maintenance schedule........................................................................................ 5

Section V - Disassembly .................................................................................................................... 5

Outer Drive Replacement ............................................................................................................ 6

Thrust Ring Replacement ............................................................................................................ 6

Bushing Replacement ................................................................................................................... 6

Section VI - Reassembly ...................................................................................................................6-7

Section VII - Tr oubleshooting .........................................................................................................7

Section VIII - Warranty ..................................................................................................................7

Part Number Explanation ...............................................................................................................8

Spare Parts Diagram .......................................................................................................................9

Spare Parts List ................................................................................................................................10-12

Impeller Assemblies .........................................................................................................................13

NOTE: Maintenance videos are now available on-line

at www.nishthompson.com.

FTI Contacts:

Tech Service: 800-888-3743 or techservice@nishthompson.com

Order Fax: 814-459-3460 or 814-455-8518 Sales: 814-455-4478; 800-934-9384 (U.S. & Canada)

IMPORTANT INFORMATION - READ ME FIRST!

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. Export Administration Regulations, pursuant to ECCN 2B350, prohibit the export or reexport to certain enumerated countries of sealless centrifugal pumps in which all wetted materials are constructed from ﬂuoropolymers without ﬁrst applying for and obtaining a license from the U.S. Bureau of Industry and Security (BIS). This affects all Finish Thompson magnetic-drive pumps constructed from PVDF or lined with ETFE. Please contact the BIS (www.bis.doc.gov) or Finish Thompson with questions regarding the Regulations or a list of the countries to which they apply.

Chemical Reaction Disclaimer

The user must exercise primary responsibility in selecting the product’s materials of construction, which are compatible with the ﬂuid(s) that come(s) in contact with the product. The user may consult Finish Thompson, Inc. (manufacturer) and a manufacturer’s representative/distributor agent to seek a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.

However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss arising out of a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and ﬂuids that come into contact with the product’s components.

Safety Precautions

WARNING: READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND OPERATING THIS UNIT. FAILURE TO FOLLOW THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.

WARNING: Magnetic ﬁeld hazard: This pump contains powerful magnets. Exposed magnets (pump not connected to motor) produce powerful magnetic ﬁelds. Individuals with cardiac pacemakers, implanted deﬁbrillators, other electronic medical devices, metallic prosthetic heart valves, internal wound clips (from surgery), metallic prosthetic devices or sickle cell anemia must not handle or be in the proximity of the magnets contained inside the pump. Consult a health care provider for speciﬁc recommendations before working with this pump.

WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place ﬁngers between the mating surfaces of the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from metal chips or particles, items with magnetic stripes like credit cards and magnetic computer media such as ﬂoppy discs and hard drives.

WARNING: When pumping ﬂammable or combustible liquids with a DB Series pump it is important to follow these guidelines:

1. You must use a PVDF pump. PVDF has conductive carbon ﬁbers added which allow it to be grounded when installed in a properly grounded piping system or when a properly installed grounding strap is attached to a housing bolt. If PVDF is not compatible with the liquid being pumped, you should consider an ETFE lined UC Series magnetic drive pump.

2. You must select the non-sparking (Ns) bronze bump ring option. The non-sparking ring is pressed into the clamp ring or motor adapter and prevents sparking should the motor bearings fail and the outer mag drive assembly runs out of round.

3. You must select an explosion-proof FTI motor or provide your own explosion-proof motor.

When pumping non-ﬂammable or non-combustible liquids in a hazardous area using a DB Series pump, it is important to take these guidelines:

1. You must select the non-sparking (Ns) bronze bump ring option. The non-sparking ring is pressed into the clamp ring or motor adapter and prevents sparking should the motor bearings fail and the outer mag drive assembly runs out of round.

2. You must select an explosion-proof FTI motor or provide your own explosion-proof motor.

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. Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials. Proper procedures should be followed for draining and decontaminating the pump before disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.

WARNING: The pump and associated components are heavy. Failure to properly support the pump during lifting and movement could result in serious injury or damage to the pump and components.

WARNING: Never run pump at less than minimum ﬂow or with the discharge valve closed. This could lead to pump failure.

Installation/Operation Precautions

CAUTION: This pump should never be operated without liquid in the casing. It is recommended that run dry protection be used. Optional electronic power monitors are available to help protect against run dry. If the pump has a PTFE, ceramic or silicon carbide bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAMAGE TO THE PUMP. However, the pump can operate without liquid in the casing if the pump has a carbon bushing. The exact length of time the pump can operate dry with a carbon bushing varies with operating conditions and the environment.

CAUTION: Never start or operate with a closed suction valve. Never operate with a closed discharge valve.

CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at least 2 feet (61 cm) above

the NPSHr (net positive suction head required).

CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed (for example, if the pump is a 50 Hz model, do not exceed 50 Hz).

Safety Precautions for ATEX Pumps

CAUTION: Proper o-ring material must be chosen for the ﬂuid being pumped. Improper material selection could lead to swelling and be a possible source of leaks. This is the responsibility of the end user.

WARNING: The pump must be checked for leaks on a regular basis. If leaks are noticed, the pump must be repaired or replaced immediately.

WARNING: The pump must be cleaned on a regular basis to avoid dust buildup greater than 5 mm.

WARNING: ATEX pumps must use a power monitor, ﬂow switch, pressure switch or similar device to help protect against running dry, closed

discharge valve and decoupling. Any of these conditions could lead to a rise in surface temperature of the pump.

Temperature Classiﬁcation

Fluid Temperature Maximum Surface

Temperature

90º F (32º C) 125º F (52º C) T6 85º C

180º F (82º C) 174 º F (81º C) T4 135º C

220º F (104º C) 200º F (93º C) T4 135º C

Temperature Class Maximum Allowable

Surface Temperature

DB6, 6H, 7, 8, 9,10 Capabilities

• Maximum Working Pressure: 80 psi (5.5 bar)

• Maximum Viscosity: 150 cP

• 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 infrequent particles. Maximum hardness is 80 HS. Maximum

concentration is 10% by weight. If solids are being pumped, it is recommended that the pump have either ceramic or for best results, silicon carbide components. Pumping solids may lead to increased wear.

Minimum Allowable Flow Rate

Do not allow the ﬂow rate to drop below the minimum ﬂow rate listed in the chart below.

3450 rpm 1725 rpm 2900 rpm 1450 rpm

1/2 gpm (1.9 lpm) 1/4 gpm (.95 lpm) 1.9 lpm (1/2 gpm) .95 lpm (1/4 gpm)

Maximum Allowable Motor Power

Do not exceed the maximum power rating for the pump coupling. Standard coupling for the DB6, 6H & 7 is 6-pole; standard coupling for the DB8, 9 & 10 is 8-pole.

· 6-pole coupling = 1/2 horsepower (0.37 kW)

· 8-pole coupling = 1 horsepower (0.75 kW)

· 10-pole coupling = 2 horsepower (1.50 kW)

Maximum Noise Level

69 dBA (Pump only)

Unpacking and Inspection

Unpack the pump and examine for any signs of shipping damage. If any damage is detected, save the packaging and notify the carrier immediately.

Section I - Assembly

Pumps with Motors

Proceed to Installation Section

Pumps Without Motors

Tools Required:

Metric socket or wrench set, 9/16” socket or wrench and 3/16” Allen Wrench (NEMA motors only)

1. Remove the pump, drive magnet assembly and hardware package from the carton.

CAUTION: Keep away from metallic particles, tools and elec tronics. Drive magnets MUST be free of metal chips.

WARNING: Keep the drive magnet away from the open end of the motor adapter and barrier. Strong magnetic attraction could allow the drive hub to enter the motor adapter resulting in injury or damage.

2. Place motor on the fan end. See ﬁgure 1.

NOTE: For 56C/145TC frame motors go to step 4.

3. Install the motor adapter ﬂange (item 14)

on motor face using bolts, lock washers and ﬂat washers (items 27, 28, 29). See ﬁgure 2.

Torque bolts to the following:

· 63 frame (M5) = 30 in-lb (3.4 N-m)

· 71 frame (M6) = 90 in-lb (10.2 N-m)

· 80 frame (M6) = 90 in-lb (10.2 N-m)

NOTE: 63/71 B14 adapter ﬂange is revers- ible. Install 63/71 B14 adapter so that proper motor ﬂange size is facing motor.

NOTE: Apply anti-seize compound on the threads of the bolts.

4. Coat the motor shaft with anti-seize com- pound. Insert key supplied with motor into keyway on motor shaft. See ﬁgure 3.

NOTE: Make sure the motor shaft is clean and free of burrs. The outer drive is preci- sion machined and has a bore tolerance of +.0005/-0 inch.

5. Slide the outer drive magnet assembly (item 13) onto the motor shaft until the motor shaft contacts the snap ring in the bore of the drive. See ﬁgures 4 & 5.

Figure 1

Figure 2

Figure 3

6. Secure the drive on the motor shaft.

WARNING: Be careful, magnets will try to attract tools.

Metric Motors: Secure the drive to the motor shaft using bolt, lock washer and ﬂat washer (items 21, 22, 23). Thread the bolt into the end of the motor shaft (while holding the outer drive to prevent it from turning). See ﬁgure 6.

Figure 6

Tighten the bolt to the following:

· 63 frame (M4) = 15 in-lb (1.7 N-m)

· 71 frame (M5) = 30 in-lb (3.4 N-m)

· 80 frame (M6) = 90 in-lb (10.2 N-m)

· 90 frame (M8) = 130 in-lb (14.7 N-m)

NEMA Motors: Install set screws (item 13B) into threaded holes on the side of the outer drive magnet assembly. Using a 3/16” Allen wrench, tighten to 228 in-lbs (25.8 N-m). See ﬁgure 7.

7. Install the pump end on the motor/drive magnet assembly. With the motor/outer drive magnet assembly in a horizontal posi-

Figure 7

tion, securely clamp to the workbench.

Note: If the pump has the optional o-ring sealing option (available on 56C and 145 frame pumps only), install the o-ring (item 12) in the groove in the motor adapter (motor end).

Carefully slide the pump onto the drive magnet assembly. The last couple of inches (5 cm) before the pump reaches the motor will have STRONG magnetic attraction between the pump and outer drive magnet assembly. See ﬁgure 8.

8. Secure the pump to the motor with (4) 3/8” bolts, lock washers and ﬂat washers (items 24, 25, 26). Tighten to 60 in-lb (6.8 N-m). See ﬁgure 9.

Note: 63/71 frame require 3/8-16 hex jam nuts. Place nut in and secure pump to motor.

Note: Apply anti-sieze compound on the threads of the bolts.

Figure 8

Figure 9

9. Rotate the motor fan to ensure that there is no binding in the pump.

Figure 4 Figure 5

10. Proceed to Installation Section

Section II – Installation

Mounting

Motor feet should be securely fastened to a solid foundation.

Note: Shims are required for the motor feet on ALL 63, 71 and 80 frame motors and 90 frame B5 motors.

Instructions for horizontal discharge installation:

The pump ships from the factory with the discharge in a vertical orientation. These instructions allow a horizontal discharge.

1. Remove (4) clamp ring bolts, lock washers and ﬂat washers (items 20, 19, 18). Rotate clamp ring clockwise 90º from the motor end.

2. Reinstall (4) clamp ring bolts, lock washers and ﬂat washers. Tighten to 60 in-lb (6.8 N-m).

Note: If the pump has the optional o-ring sealing option (avail- able on 56C and 145 frame pumps only), make sure o-ring is properly seated in the groove after the clamp has been rotated.

Note: When the pump discharge is in a horizontal conﬁguration, the motor must be shimmed to raise the front of the pump to avoid interference.

Piping

Caution: The NPSH available must be greater than the NPSH required. Filters, strainers and any other ﬁttings in the suction line will lower the NPSH available and should be calculated into the application.

· Install the pump as close to the suction source as possible.

· Support the piping independently near the pump to eliminate any strain on the pump casing. In addition, the piping should be aligned to avoid placing stress on the pump casing.

· The suction side of the pump should be as straight and short as possible to minimize pipe friction.

· Keep bends and valves at least ten pipe diameters away from the suction and discharge.

· The suction line should be at least as large as the suction inlet port or one pipe size larger so that it does not affect the NPSHa. Do not reduce the suction line size.

· The suction line should not have any high spots. This can create air pockets. The suction piping should be level or slope slightly upward to the pump.

· A check valve and control valve (if used) should be installed on the discharge line. The control valve is used for regulating ﬂow. An isolation valves on the suction and discharge are used to make the pump accessible for maintenance. The check valve helps prevent the pump against damage from water hammer. This is particularly important when the static discharge head is high.

· If ﬂexible hose is preferred, use a reinforced hose rated for the proper temperature, pressure and chemical resistance to the ﬂuid being pumped.

· The suction valve must be completely open to avoid restricting the suction ﬂow.

· It is advisable to install a ﬂush system in the piping to allow the pump to be ﬂushed before the pump is removed from service.

Note: The pump is provided with a provision for a customer

installed ¼” drain in the impeller housing. See the Drain Installation Section for details.

· For units in a suction lift system, install appropriate piping in the discharge to allow priming of the pump (DB models are not self- priming).

· When installing pumps with ﬂanges, we recommend the use of low seating stress gaskets such as Gore-Tex® or Gylon® (expanded PTFE)

Motor/Electrical

Install the motor according to NEC requirements and local electrical codes. The motor should have an overload protection circuit.

Wire the motor for clockwise rotation when facing the fan end of the motor.

CAUTION: Do not operate the pump to check rotation until the pump is full of liquid.

Check all electrical connections with the wiring diagram on the motor. Make sure the voltage, frequency, phase and amp draw comply with the supply circuit.

If utilized, verify that the power monitor has been properly installed according to the manufacturers instructions.

To verify correct rotation of the motor:

1. Install the pump into the system.

2. Fully open the suction and discharge valves.

3. Allow ﬂuid to ﬂow into the pump. Do not allow the pump to run dry (ceramic, PTFE and silicon carbide bushings can’t be run dry without damage to pump components).

4. Jog the motor (allow it to run for 1-2 seconds) and observe the rotation of the motor fan. Refer to the directional arrow molded into the pump casing if necessary.

Note: A pump running backwards will pump but at a greatly reduced ﬂow and pressure.

Section III - Start-up and Operation

1. This pump must be ﬁlled from a ﬂooded suction tank (gravity) or primed with liquid from an outside source. DB Series pumps are not self-priming.

2. Open the inlet (suction) and discharge valves completely and al low the pump to ﬁll with liquid.

3. Close the discharge valve.

4. Turn the pump on. Slowly open the discharge valve. Adjust the ﬂow rate and pressure by regulating the discharge valve. Do not attempt to adjust the ﬂow with the suction valve.

5. Use of a power monitor is strongly recommended for pumps with ceramic, PTFE or silicon carbide bushings. The power monitor will stop the pump and help prevent damage if the pump should run dry.

Shutdown

Use the following procedure to shutdown the pump.

1. Slowly close the discharge valve.

2. Turn off the motor.

3. Close the suction valve.

Flush Systems

CAUTION: Some ﬂuids react with water; use compatible ﬂushing ﬂuid.

1. Turn off the pump.

2. Completely close the suction and discharge valves

3. Connect ﬂushing ﬂuid supply to ﬂush inlet valve.

4. Connect ﬂushing ﬂuid drain to ﬂush drain valve.

5. Open ﬂushing inlet and outlet valves. Flush system until the pump is clean.

Optional Drain Installation

1. Remove the impeller housing (item 1) from the pump assembly.

2. Clamp the impeller housing to a drill press table.

3. Using a 7/16” drill and the molded boss as a guide, drill com pletely through the molded boss into the interior of the impeller housing.

CAUTION: Do not tap too deep or the impeller housing may be damaged.

4. Using a ¼” NPT tap, tap the hole in the molded boss to the ap- propriate depth.

5. Install the drain plug or valve, being careful not to over-tighten.

Section IV - Maintenance

Recommended maintenance schedule

The recommended maintenance schedule depends upon the nature of the ﬂuid being pumped and the speciﬁc application. If the pump is used on a clean ﬂuid, it is recommended that the pump be removed from service and examined after six months of operation or after 2,000 hours of operation. If the pump is used on ﬂuids with solids, high temperatures or other items that could cause accelerated wear, then this initial examination should be sooner.

After the initial examination of the internal components and wear items are measured, a speciﬁc maintenance schedule can be determined. For best results, it is recommended that the pump be removed from service annually for examination.

magnet and impeller assembly away from metal chips or particles.

1. Stop the pump, lock out the motor starter, close all the valves that are connected to the pump, and drain/decontaminate the pump.

WARNING: The pump must be thoroughly ﬂushed of any hazardous materials and all internal pressure relieved prior to opening the pump. Allow the pump to reach ambient temperatures prior to performing maintenance.

2. Securely clamp the motor to the bench. Remove the (4) bolts, lock washers and ﬂat washers (items 24, 25, 26) securing the pump to the motor.

3. Firmly grab the pump and pull straight back to disengage the motor and the pump. See ﬁgure 10.

4. Place pump on bench with housing facing up. Remove (6) 8 mm hous ing bolts, lock washers and ﬂat

Figure 10

washers (items 15, 16, 17). See ﬁgure 11.

5. Pull housing (item 1) straight up to remove. Inspect housing for signs of wear or damage. Look for signs of rubbing, cracked thrust ring or dam- age to front shaft support. See ﬁgure 12.

6. Remove impeller/inner drive assembly

Figure 11

(items 4A, 4, 5, 5A). Inspect impeller and drive for signs of wear or damage. Look for signs of rubbing, damage and wear to the impeller and inner drive. See ﬁgure 13.

Check the impeller thrust ring and bushing for wear. See ﬁgure 14.

Figure 12

Section V - Disassembly

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.

Figure 13

Figure 14

7. Remove the impeller shaft (item 6) from the barrier and check for signs of cracking, chipping, scoring or

wear. See ﬁgure 15.

8. Remove the barrier (item 7) from the motor adapter (item 11) (make sure the shaft has been removed).

Figure 15

If necessary, gently tap on the back side of the barrier with a soft rod (wood, plastic, etc). Inspect the inside and outside of the barrier for signs of rubbing. See ﬁgure 16.

9. Remove the o-ring (item 3) from the barrier and inspect for chemical at tack, swelling, brittleness, cuts, etc.

Figure 16

10. Visually inspect the outer drive (item 13) for rubbing, damage, cor rosion or loose magnets.

Outer Drive Replacement

1. Remove the setscrews (item 13B) from the side of the drive (NEMA motors) or the bolt, lock washer and ﬂat washer (items 21, 22, 23) from the center of the drive (metric motors).

WARNING: Be careful, tools will want to be attracted to the magnets.

2. Remove the drive magnet from the motor shaft by gently prying up from the bottom of the drive. See ﬁgure 17.

Figure 17

3. To reinstall the drive or a new drive follow the instructions from Section I - Assembly, Pumps without Motors, steps 5 & 6.

Thrust Ring Replacement

1. Thrust ring (item 4A) is held in-place with a snap ﬁt with a ridge. Using a razor knife or side cutters, cut a notch out of the thrust ring. Pull ring up and out of the holder. See ﬁgures 18 and 19.

2. To reinstall, align the two ﬂats on the thrust ring with the ﬂats in the bore of the

Figure 18

impeller. Using a piece of wood press into place using an arbor press until the thrust ring is completely seated in the impeller.

Bushing Replacement

To remove the bushing, place the impeller/inner drive assembly in an arbor press. Insert a 7/16” diameter plastic or wood shaft through the eye of the impeller and press the bushing out.

To replace the bushing (item 5A), place the top of the impeller on an arbor press with the thrust ring face down. Insert the front of the bushing into the center of the impeller/inner drive magnet assembly. Press into place until the bushing reaches the shoulder molded into the inner drive. See ﬁgures 20, 21, 22.

Figure 19

Figure 20

Figure 21

Figure 22

Impeller Replacement

To remove the impeller from the inner drive magnet, gently pry off by hand or lightly tap on the back of the impeller.

To install a new impeller, place the inner drive magnet assembly face up. Line up the patterns on the impeller with the ones on the inner drive magnet so they match and press into place by hand. An arbor press can also be used to press the impeller on the inner drive. Place a piece of wood over the top of the impeller thrust ring and push down on the impeller until it is completely seated in

Figure 23

the inner drive. See ﬁgure 23.

Section VI - Reassembly

1. Place motor adapter (item 11) so the large ﬂange is on the bench. Rotate the adapter so the four holes in the smaller ﬂange are in the horizontal position. Install o-ring (item 10) in the groove. See ﬁgure 24.

2. Install clamp ring.

For vertical discharge – Install the clamp ring (item 9) in the motor adapter so the housing bolt holes (6 holes in clamp ring) are in 3:00 and 9:00 position. See ﬁgure 25.

For horizontal discharge - Install the clamp ring (item 9) in the motor adapter so two housing bolt holes (6 holes in clamp ring) are in 12:00 and 6:00 position. See ﬁgure 26.

Figure 24 Figure 25 Figure 26

3. Install (4) bolts, lock washers and ﬂat washers (items 20, 19, 18). Tighten evenly using a star pattern. Tighten to 60 in-lb (6.8 N-m). See ﬁgure 27.

4. Install barrier (item 7) into motor adapter and clamp ring assembly. Lubricate the o-ring with a chemically compatible lubri cant, and install it in the groove in the clamp ring before installing the barrier. See ﬁgure 27A. Push barrier into place. See ﬁgure 27B.

Figure 27A Figure 27B

Figure 27

5. Install o-ring (item 3) in groove in the barrier.

6. Install impeller shaft (item 6) into barrier by aligning the ﬂats on the shaft with the ﬂats in the barrier. Make sure it is completely seated. See ﬁgure 28.

Figure 28

7. Carefully install the impeller/inner drive

assembly (items 4A, 4, 5, 5A) 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 29 and 30.

8. Establish the bottom of the motor adapter/clamp ring assembly. See ﬁgures 25 and 26.

9. Install the impeller housing making sure that the discharge is in correct orien tation (vertical or horizontal). Align the shaft in the barrier with the front shaft support in the impeller housing. Pressing down, push the impeller/inner drive magnet assembly into position. Holding the impeller housing with one hand, install and ﬁnger-tighten two bolts, lock washers and ﬂat washers (items 15, 16, 17) in opposite locations. See ﬁgure 31.

10. Install the remaining bolts, lock washers and ﬂat washers ﬁnger tight.

11. Tighten all the bolts evenly using a star pattern. Tighten to 60 inch-lbs (6.8 N-m).

12. Reinstall the pump on the motor/drive magnet following instruc tions found in “Assembly, Pumps without motors,” steps 7-10.

Figure 29

Figure 30

Figure 31

Section VII - Troubleshooting

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.

• Do not use mismatched drive magnet assemblies (different num-

ber of magnets on inner and outer drive magnet assemblies).

• Contact our Technical Service Department at 1-800-888-3743 or

by e-mail at techservice@ﬁnishthompson.com if you have any questions regarding product operation or repair.

No or Insufﬁcient Discharge

• Air leaks in suction piping

• Pump not primed

• System head higher than anticipated

• Closed valve

• Viscosity or speciﬁc gravity too high

• Motor too large for magnet coupling rating (magnets uncoupled)

• Suction lift too high or insufﬁcient NPSH

• Clogged suction line or impeller vanes

• Motor rotation incorrect (correct rotation when viewed from the

fan end is clockwise)

Insufﬁcient Pressure

• Air or gas in liquid

• Impeller diameter too small

• System head lower than anticipated

• Motors speed insufﬁcient (too low) or motor rotation incorrect (correct rotation when viewed from the fan end is clockwise)

Loss of Prime

• Leak in suction piping

• Foot valve or suction opening not submerged enough

• Foot valve too small or leaking

• Air or gas in liquid

• Foreign matter in impeller

• Leaking valve. Suction lift too high or insufﬁcient NPSHa.

Excessive Power Consumption

• Head lower than rating

• Excessive ﬂow

• Speciﬁc gravity or viscosity too high.

Vibration/Noise

• Loose magnet

• Drive magnet rubbing

• Pump cavitating from improper suction or feed

• Motor or piping not properly secured

• Foreign object in impeller

Section VIII - Warranty

Finish Thompson, Inc (manufacturer) warrants this pump product to be free of defects in materials and workmanship for a period of ﬁve years from date of purchase by original purchaser. If a warranted defect, which is determined by manufacturer’s inspection, occurs within this period, it will be repaired or replaced at the manufacturer’s option, provided (1) the product is submitted with proof of purchase date and (2) transportation charges are prepaid to the manufacturer. Liability under this warranty is expressly limited to repairing or replacing the product or parts thereof and is in lieu of any other warranties, either expressed or implied. This warranty does not apply to normal wear of the product or components. This warranty does not apply to products or parts broken due to, in whole or in part, accident, overload, abuse, chemical attack, tampering, or alteration. The warranty does not apply to any other equipment used or purchased in combination with this product. The manufacturer accepts no responsibility for product damage or personal injuries sustained when the product is modiﬁed in any way. If this warranty does not apply, the purchaser shall bear all cost for labor, material and transportation.

Manufacturer shall not be liable for incidental or consequential damages including, but not limited to, process down time, transportation costs, costs associated with replacement or substitution products, labor costs, product installation or removal costs, or loss of proﬁt. In any and all events, manufacturer’s liability shall not exceed the purchase price of the product and/or accessories.

Ordering Spare Parts

Spare parts can be ordered from your local distributor. Always refer to the pump model to avoid error.

Other FTI Products

See our full product range at www.ﬁnishthompson.com.

PART NUMBER EXPLANATION

1. Select base model (E.G. DB10P*)

2. If standard components are not suitable, enter symbol(s) of alternative compo nents in any order.

Base Model - -__-__-_______

DB10P E-Ff-14

DB10P-E-Ff-14 is a DB10P with EPDM O-ring, ﬁberglass ﬂanges and 145TC motor.

3. Alternative components - select from chart.

*The model number is on the serial number label

located on the motor adapter. The model number contains a base model that features certain standard components. Compare the model number on the pump to the chart below to determine if the pump contains any alternate components. Model numbers containing “P” have primary components molded from polypropylene. Model numbers containing “V” have primary components molded from PVDF.

Base model numbers are: DB6P, DB6V, DB6HP,

DB6HV, DB7P, DB7V, DB8P, DB8V, DB9P, DB9V, DB10P, DB10V.

BASE MODEL

COMPONENTS

Bushing Graphite Carbon

O-Ring FKM

Connection NPT

Impeller

Magnet

Motor

Adapter

Specials

(Max size 60 Hz)

DB6/6H/7: 6-Pole DB8/9/10: 8-Pole

(Upgrade for speciﬁc

gravity corrections)

56C NEMA

SS hardware, PTFE/

ceramic thrust rings,

ceramic shaft, Buna o-ring vapor protec-

tion kit option (NEMA

only)

ALTERNATIVE COMPONENTS Code

PTFE T

Alumina Ceramic* R

EPDM E Simriz* S Kalrez* K

BSP Threads B

Union* U

Steel enforced ﬂange* Fs

Fiberglass enforced ﬂange* Ff

Select impeller from page #

2 3 4 5 6 7 8 9 10

6-Pole: up to .5 HP/.38 kW (56C, 63, 71 frame) 6p

8-Pole: up to 1 HP/.75 kW (56C, 145, 63, 71, 80 frame)* 8p

10-Pole: up to 2 HP/1.5 kW (56C,145, 63, 71, 80, 90

SiC bushing, thrust ring, shaft* Si

FKM o-ring vapor protection kit (NEMA only)* Vv

EPDM o-ring vapor protection kit (NEMA only)* Ve

frame)*

145TC NEMA 14

IEC 63/B14 64 IEC 71/B14 74 IEC 80/B14 84 IEC 90/B14 94

IEC 63/B5 65 IEC 71/B5 75 IEC 80/B5 85 IEC 90/B5 95

Hastelloy shaft* Hs

Titanium hardware* Ti

ATEX (PVDF only)* A

Non-sparking ring* Ns

10p

Motor Not Standard Select Motor Reference Number from Motor Price Sheets

DB 6 - 10 SPARE PARTS DIAGRAM

DB 6 - 10 SPARE PARTS LIST

Item Qty Description

Housing w/ Ring

NPT threads & standard ceramic ring 106265 106265-1 106337 106337-1 106252 106252-1 BSP threads & standard ceramic ring 106265-2 106265-3 106337-2 106337-3 106252-2 106252-3 FRP ﬂanges & standard ceramic ring 106369 106369-1 106384 106384-1 106365 106365-1 Steel ﬂanges & standard ceramic ring 106369-2 106369-3 106384-2 106384-3 106365-2 106365-3

1 1

2 1

3 1

4 1

4A 1

5 1

5A 1

6 1

7 1

8 1

Unions & standard ceramic ring 106377 106377-1 106382 106382-1 106367 106367-1 NPT Threads & optional SiC Ring 106346 106346-1 106381 106381-1 106345 106345-1 BSP Threads & optional SiC Ring 106346-2 106346-3 106381-2 106381-3 106345-2 106345-3 FRP Flanges & optional SiC Ring 106370 106370-1 106385 106385-1 106366 106366-1 Steel Flanges & optional SiC Ring 106370-2 106370-3 106385-2 106385-3 106366-2 106366-3 Unions & optional SiC Ring 106378 106378-1 106383 106383-1 106368 106368-1

Discharge O-ring (BSP Housings Only)

FKM 106303 105919 EPDM 106304 105918 Simriz 106306 105921 Kalrez 106305 105920

Housing O-ring

FKM - standard 106298 EPDM - optional 106299 Simriz - optional 106301 Kalrez - optional 106300

Impeller

See DB6-10 Impeller Assemblies Table on pg 31

Impeller Thrust Ring Only

Filled PTFE (standard) 106257 SiC (optional) 106257-1

Impeller Drive Assembly

6-pole w/ carbon bushing 106361 106361-3 106361 106361-3 106361 106361-3 8-pole w/ carbon bushing 106361-1 106361-4 106361-1 106361-4 106361-1 106361-4 10-pole w/ carbon bushing 106361-2 106361-5 106361-2 106361-5 106361-2 106361-5 6-pole w/ PTFE bushing 106362 106362-3 106362 106362-3 106362 106362-3 8-pole w/ PTFE bushing 106362-1 106362-4 106362-1 106362-4 106362-1 106362-4 10-pole w/ PTFE bushing 106362-2 106362-5 106362-2 106362-5 106362-2 106362-5 6-pole w/ ceramic bushing 106363 106363-3 106363 106363-3 106363 106363-3 8-pole w/ ceramic bushing 106363-1 106363-4 106363-1 106363-4 106363-1 106363-4 10-pole w/ ceramic bushing 106363-2 106363-5 106363-2 106363-5 106363-2 106363-5 6-pole w/ SiC bushing 106364 106364-3 106364 106364-3 106364 106364-3 8-pole w/ SiC bushing 106364-1 106364-4 106364-1 106364-4 106364-1 106364-4 10-pole w/ SiC bushing 106364-2 106364-5 106364-2 106364-5 106364-2 106364-5

Impeller Bushing Only

Carbon (standard) J102387 Filled PTFE (optional) J102790 Ceramic (optional) J103617 SiC (optional) J103617-1

Impeller Shaft

Ceramic (standard) 106293 SiC (optional) 106293-1 Hastelloy C (optional) 106293-2

Barrier

With silicon carbide thrust washer 106235-4 106235-5 106235-4 106235-5 106235-4 106235-5

Barrier O-Ring (For Vapor Protection Kit Option for NEMA Motors Only)

Buna N 106572 EPDM 106550 FKM 106551

DB6/6H/9 DB8 DB7/10

Pump Material Pump Material Pump Material

Polypro PVDF Polypro PVDF Polypro PVDF

DB 6 - 10 SPARE PARTS LIST - Cont.

Item Qty Description

Clamp Ring

Painted cast iron (Standard) 106246 106246-1 106246 106246-1 106246 106246-1 Painted cast iron with non-sparking ring 106521 106521-1 106521 106521-1 106521 106521-1

9 1

Painted cast iron (ATEX) N/A 106521-1 N/A 106521-1 N/A 106521-1 Stainless steel 108599 108599 108599 108599 108599 108599 Stainless steel with non-sparking ring 108599-1 108599-1 108599-1 108599-1 108599-1 108599-1 Stainless steel (ATEX) N/A 108599-1 N/A 108599-1 N/A 108599-1

Clamp Ring O-Ring (For Vapor Protection Kit Option for NEMA Motors Only)

10 1

Buna N 106548 EPDM 106372 FKM J103954

Motor Adapter Column

11 1

Standard 106248 106248-1 106248 106248-1 106248 106248-1 ATEX N/A 106248-2 N/A 106248-2 N/A 106248-2

Motor Adapter O-ring (For Vapor Protection Kit Option for NEMA Motors Only)

12 1

Buna N 106549 EPDM 106373 FKM 106374

Drive Magnet Assembly with Retaining Ring (56C Frame Also Includes Set Screws)

56C frame, 6-pole 106283 56C frame, 8-pole 106283-1 56C frame, 10-pole 106283-2 143/145TC frame, 8-pole 106283-4 143/145TC frame, 10-pole 106283-5 63 frame, 6-pole 106289

13 1

63 frame, 8-pole 106289-1 63 frame, 10-pole 106289-2 71 frame, 6-pole 106286 71 frame, 8-pole 106286-1 71 frame, 10-pole 106286-2 80 frame, 8-pole 106292-1 80 frame, 10-pole 106292-2 90 Frame, 10-pole 106292-5

Retaining Ring Only

56C frame 105708 143/145TC frame 105709

13A 1

63 frame 106310 71 frame 106309 80 frame 105711 90 frame 105712

13B 2

Set Screws (NEMA Motor Only)

Stainless steel J101084

DB6/6H/9 DB8 DB7/10

Pump Material Pump Material Pump Material

Polypro PVDF Polypro PVDF Polypro PVDF

Hardware - All DB6-10 Models

Item Qty Description Stainless Steel Titanium

15 6

16 6

17 6

18 4

19 4

20 4

21 1

22 1

23 1

24 4

25 4

26 4

27 4

28 4

29 4

30 4

Housing Bolt

J102789 106308

Housing Lock Washer

J102282 J103847

Housing Flat Washer

105767 105768

Clamp Ring Flatwasher

105767 105768

Clamp Ring Lockwasher

J102282 J103847

Clamp Ring Bolt

105770 105771

Drive Bolt (IEC Motors Only)

63 frame 71 frame

80 frame 105765 105766

90 frame

Drive Lockwasher (IEC Frames Only)

63 frame 71 frame 80 frame 90 frame

Drive Flatwasher (IEC Frames Only)

63 frame 71 frame 80 frame 90 frame

Motor Adapter Bolt

Motor Adapter Lockwasher

Motor Adapter Flatwasher

Motor Adapter Flange Bolt (IEC Frames Only)

63 frame 71 frame 80 frame

90 frame 105770 105771

Motor Adapter Lockwasher (IEC Frames Only)

63 frame J103637 106350

71 frame 80 frame 90 frame

Motor Adapter Flatwasher (IEC Frames Only)

63 frame 71 frame 80 frame 90 frame

Motor Adapter Nut (IEC Frames Only)

63 frame & 71 frame with B14 ﬂange

106314 106315 106312 106313

105770 105771

106322 106323

106320 106321 J100672 J104203 J102282 J103847

106318 106319

106316 106317

105767 105768

105722 105773

J100114 106311

J100115 J104206

J100128 J104207

106348 106349

105765 105766

J100672 J104203 J100672 J104203 J102282 J103847

J103638 106351 J100113 J104204 J100113 J104204 J101293 J103845

108141 N/A

Impeller Assemblies

Model

DB6

DB6H

DB7

DB8

DB9

DB10

Thrust Ring

Material

Impeller Diameter (in.)

PTFE

Silicon Carbide

Impeller Diameter (in.)

PTFE

Silicon Carbide

Impeller Diameter (in.)

PTFE

Silicon Carbide

Impeller Diameter (in.)

PTFE

Silicon Carbide

Impeller Diameter (in.)

PTFE

Silicon Carbide

Impeller Diameter (in.) 3.75 3.50 3.25 3.00 4.18 4.00 3.75 3.50 3.25

PTFE

Silicon Carbide

Impeller Material

Polypro 106356-4 106356-6 106356-8 106356 106356-2 106356-4 106356-6 - -

PVDF 106356-5 106356-7 106356-9 106356-1 106356-3 106356-5 106356-7 - -

Polypro 106357-4 106357-6 106357-8 106357 106357-2 106357-4 106357-6 - -

PVDF 106357-5 106357-7 106357-9 106357-1 106357-3 106357-5 106357-7 - -

Polypro 106536 106536-2 106536-4 106536-6 106358 106358-2 106358-4 106358-6 -

PVDF 106536-1 106536-3 106536-5 106536-7 106358-1 106358-3 106358-5 106358-7 -

Polypro 106537 106537-2 106537-4 106537-6 106359 106359-2 106359-4 106359-6 -

PVDF 106537-1 106537-3 106537-5 106537-7 106359-1 106359-3 106359-5 106359-7 -

Polypro 106354-4 106354-8 106354-10 106354 106354-2 106354-6 - - -

PVDF 106354-5 106354-9 106354-11 106354-1 106354-3 106354-7 - - -

Polypro 106355-4 106355-8 106355-10 106355 106355-2 106355-6 - - -

PVDF 106355-5 106355-9 106355-11 106355-1 106355-3 106355-7 - - -

Polypro 106379-8 106379-10 106379-12 106379-14 106379 106379-2 106379-4 106379-6 -

PVDF 106379-9 106379-11 106379-13 106379-15 106379-1 106379-3 106379-5 106379-7 -

Polypro 106380-8 106380-10 106380-12 106380-14 106380 106380-2 106380-4 106380-6 -

PVDF 106380-9 106380-11 106380-13 106380-15 106380-1 106380-3 106380-5 106380-7 -

Polypro 106358 - - - - - - - -

PVDF 106358-1 - - - - - - - -

Polypro 106359 - - - - - - - -

PVDF 106359-1 - - - - - - - -

Polypro 106352-4 106352-6 106352-8 106352-10 106352 106352-2 106352-4 106352-6 106352-8

PVDF 106352-5 106352-7 106352-9 106352-11 106352-1 106352-3 106352-5 106352-7 106352-9

Polypro 106353-4 106353-6 106353-8 106353-10 106353 106353-2 106353-4 106353-6 106353-8

PVDF 106353-5 106353-7 106353-9 106353-11 106353-1 106353-3 106353-5 106353-7 106353-9

#1 #2 #3 #4 #5 #6 #7 #8 #9

3.00 2.75 2.50 3.50 3.25 3.00 2.75

3.88 3.63 3.38 3.12 4.18 4.00 3.75 3.50

3.18 3.00 2.75 3.63 3.38 3.12

3.63 3.38 3.12 2.88 4.18 4.00 3.75 3.50

4.18

- - - - - - - -

- - -

- -

Part Number 106577, R9, 2/13/14 Order fax: 814-459-3460 Tech Service: 800-888-3743 Literature ID No. FT07-975

Finish Thompson DB6, DB 6H, DB 7, DB 8, DB 9 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual