Fristam Pumps FDS Series Instructions for use

FDS Series Pumps
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Instruction and Maintenance Manual
FDS Positive Displacement Pump
(Original Instructions)

FDS Series Pumps
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DESCRIPTION
This manual contains installation, operation and repair instructions for the Fristam FDS Series double
screw pump.
The FDS pump is a positive displacement pump characterized by its double screw design. The screws
travel through a precisely machined, close clearance screw bores in the housing and cover allowing the
product to be pumped very efciently and smoothly.
The FDS series pump is ideal for pumping products that are shear sensitive, have a high viscosity
and/or contain large particulates. The FDS series pump excels in applications with high differential
pressure and/or low inlet pressures and its high efciency, low slip performance makes it an excellent
pump for metering applications for consistent ow control.
The FDS series pump is available with any connection type desired and may be mounted with the inlet/
outlet connections in a horizontal or vertical orientation. The pump should be coupled to a motor/
drive assembly properly specied to give the desired performance for the required application.
CAUTION: BEGIN ALL PUMP MAINTENANCE OPERATIONS BY DISCONNECTING THE ENERGY
SOURCE TO THE PUMP. OBSERVE ALL LOCK OUT/TAG OUT PROCEDURES AS OUTLINED BY ANSI
Z244.1-1982 AND OSHA 1910.147 TO PREVENT ACCIDENTAL START-UP AND INJURY.
SAFETY
This instruction and maintenance manual shall be read and completely understood prior
to operation of the pump. The manual should be kept available at the pump installation
location.
All applicable local/national regulation and laws shall be followed.
All work described herein may only be performed by qualied personnel.
Personal protective equipment (PPE) such as hearing protection may be required.
Despite inherent safe design measures some amount residual risk will remain. Throughout
the manual these risks will be pointed out.
!
CAUTION: Begin all pump maintenance operations by disconnecting the
energy source to the pump. Observe all lock out/tag out proce-
dures as outlined by ANSI Z244.1-1982 and OSHA 1910.147
to prevent accidental start-up and injury.

FDS Series Pumps
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TABLE OF CONTENTS
Safety ................................................................................................................................2
Technical Information ........................................................................................................4
Pump Operations ............................................................................................................... 7
Spare Parts ..........................................................................................................................8
Transportation ....................................................................................................................8
Noise Reduction ..................................................................................................................8
Cleaning ..............................................................................................................................8
Installation ..........................................................................................................................9
Recommended Preventive Maintenance...........................................................................13
Drawing and Illustrations .................................................................................................14
Pump Assembly...........................................................................................................14
Gearbox Assembly .......................................................................................................14
Parts List .....................................................................................................................15
Single Mechanical Seal Assembly...............................................................................16
Double Mechanical Assembly .....................................................................................17
Maintenance Tools Required .............................................................................................18
Pump Disassembly.............................................................................................................19
Seal Replacement ..............................................................................................................20
Pump Assembly .................................................................................................................21
Changing Screw Rotation Direction.................................................................................24
Changing Flow Direction..................................................................................................25
Pump Maintenance Record ...............................................................................................26
EC Declaration of Conformity...........................................................................................30
EG Declaration of Incorporation ......................................................................................30
Warranty ............................................................................................................................31

FDS Series Pumps
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TECHNICAL INFORMATION
SPECIFICATIONS
Max. Flow Rate............................................................................................88 GPM (FDS 1)
.....................................................................................................176 GPM (FDS 2)
.....................................................................................................440 GPM (FDS 3)
.....................................................................................................793 GPM (FDS 4)
Max. Speed Range.................................................................................................3600 RPM
Max. Viscosity.................................................................................................. 1,000,000 cps
Rotation ................................................................................................................Reversible
Mounting .............................................................................. Horizontal (vertical optional)
Max. Temperature........................................................................................................302°F
Standard Fitting Size ....................................................2 in. cover / 2 in. housing (FDS 1)
.......................................................................3 in. cover / 2.5 in. housing (FDS 2)
..........................................................................4 in. cover / 3 in. housing (FDS 3)
..........................................................................6 in. cover / 4 in. housing (FDS 4)
..........................................................................8 in. cover / 6 in. housing (FDS 5)
MATERIALS OF CONSTRUCTION
Major Product Contact Components ................................................................... AISI 316L
Cover Gasket.................................................................................................................Viton
Also available in ............................................................ EPDM and other options available
Surface Finish for Product Contact Surfaces........................................... 32 Ra (standard)
Also available in ................................................................................................ 25 Ra, 20 Ra
SHAFT SEALS & O-RINGS
Mechanical Seal Type ................................................................................................. Single
Stationary Seal Material................................................. Silicon Carbide (standard)
Also available in.............................................................................Tungsten Carbide
Rotating Seal Material ..................................................................... Silicon Carbide
Also available in.............................................................................Tungsten Carbide
Mechanical Seal Type ................................................................................................Double
Outer Stationary Seal.....................................................................................Carbon
Outer Rotating Seal ......................................................................Tungsten Carbide
Other O-rings (mechanical seals)...................................................Viton (standard)
Also available in..................................................EPDM and other options available
LUBRICATION
Oil Grade................................ Flow_Guard Synthtic ISO 100 Food Grade (standard)
Oil Capacity
FDS 1.................................................................................... 0.35 liters (0.4 US quarts)
FDS 2.................................................................................... 0.55 liters (0.6 US quarts)
FDS 3.................................................................................... 0.95 liters (1.0 US quarts)
FDS 4.................................................................................... 2.70 liters (2.9 US quarts)
FDS 5.................................................................................... 4.50 liters (4.8 US quarts)

FDS Series Pumps
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TABLE A1: Woods Sure-Flex Coupling Alignment
Sleeve
Size
Type E Type H
Parallel
A
Angular
Y max. - Y
min.
Y* Parallel
A
Angular
Y max. - Y
min.
Y*
5 .015 .056 1.938 - - -
6 .015 .070 2.375 .010 .016 2.375
7 .020 .081 2.563 .012 .020 2.563
8 .020 .094 2.938 .015 .025 2.938
9 .025 .109 3.500 .017 .028 3.500
10 .025 .128 4.063 .202 .032 4.063
11 .032 .151 4.875 .022 .037 4.875
12 .032 .175 5.688 .025 .042 5.688
13 .040 .195 6.688 .030 .050 6.688
14 .045 .242 7.750 .035 .060 7.750
Dimensions are in inches.
*The “Y” dimension is shown for reference.
WOODS SURE-FLEX COUPLING ALIGNMENT
RECOMMENDED TORQUE VALUES
FDS 1 FDS 2 FDS 3 FDS 4
Housing/Cover Bolt 27 ft-lb / 36 Nm 46 ft-lb / 63 Nm 105 ft-lb / 143 Nm 193 ft-lb / 262 Nm
Screw Nut 44 ft-lb / 60 Nm 90 ft-lb / 120 Nm 118 ft-lb / 160 Nm 148 ft-lb / 200 Nm
Idle Shaft Bolt 46 ft-lb / 63 Nm 105 ft-lb / 143 Nm 193 ft-lb / 262 Nm
Bearing Lock Nut 50 ft-lb / 68 Nm
Gearbox End Plate 13 ft-lb / 18 Nm 27 ft-lb / 36 Nm 105 ft-lb / 143 Nm
Gearbox Cover 13 ft-lb / 18 Nm 27 ft-lb / 36 Nm
Bearing Retainer Bolts 65 in-lb / 7 Nm 13 ft-lb / 18 Nm 27 ft-lb / 36 Nm
Gear Retainer Bolts 45 in-lb / 5 Nm 65 in-lb / 7 Nm 15 ft-lb / 20 Nm 25 ft-lb / 34 Nm
Mounting Foot Bolts 27 ft-lb / 36 Nm 46 ft-lb / 63 Nm 105 ft-lb / 143 Nm
Housing Bolt 10 ft-lb / 13.5 Nm 45 ft-lb / 61 Nm
Screw Size 1 2 3 4 5 6 L1 L2
Max. Pressure: PSI (bar)
MODELS 2-5 360 (25) 320 (22) 260 (18) 190 (13) 160 (11) 130 (9) 115 (8) 90 (6)
Max. Pressure: PSI (bar)
MODEL 1 290 (20) 260 (18) 230 (16) 175 (12) 145 (10) 115 (8) N/A N/A
MAXIMUM PRESSURE