Finish Thompson DB6, DB 6H, DB 7, DB 8, DB 9 User Manual
...
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 specied 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 modications 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 Classication ........................................................................................................ 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.
1
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)
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