INSTALLATION & OPERATION
MANUAL
Precision Turbine Flowmeters
TABLE OF CONTENTS
PAGE #
DESCRIPTION
1
Forward
4
3 Typical Meter Runs
7
FIGURE 2: 1/2” and Larger Assembly Procedure
10
FIGURE 5: Corrosive Meter Assembly Procedure
2
3
5
6
8
9
11
Pre-Installation Inspection, Installation
Installation (continued)
Typical Flowstraightener Section
FIGURE 1: 1/4” Assembly Procedure
FIGURE 3: MF20-90 Assembly Procedure
FIGURE 4: MF100-175 Assembly Procedure
FIGURE 6: 3A Sanitary Meter Assembly Procedure
FORWARD
Pg.1
A. PRINCIPLE OF OPERATION
1. The precision turbine flowmeter is a volumetric flow measuring device.
2. The flowing fluid engages the vaned rotor causing it to rotate at an angular velocity proportional to the flowrate.
3. The angular velocity of the rotor results in the generation of an electrical signal (AC sine wave type). Summation
of the pulsing electrical signal relates directly to the flow rate.
4. The differential pressures developed across the turbine flowmeter balances out normal downstream thrust
loads, thus eliminating the need for thrust bearings over the rated range of the meter.
5. The vaned rotor is the only moving part of the flowmeter.
B. PHYSICAL DESCRIPTION
Refer to Assembly procedures in this manual for the identification of major parts of a typical SPONSLER PRECISION
TURBINE FLOWMETER.
C. ELECTRICAL DESCRIPTION
The pickup coil furnished with each SPONSLER PRECISION TURBINE FLOWMETER is a sensing device that
converts the change of magnetic flux from a permanent magnet, produced by the revolving rotor, into an AC sine wave.
Signal amplitude and frequency are directly proportional to flow rate.
1. Pickup Coil Types (a) Variable Reluctance- Generating pickups contain a permanent magnet and associated wire-wound coil. The
movement of the ferrous material of the rotor blade past the coil tip disrupts a magnetic field producing an AC
signal within the coil winding.
(b) Inductance-Generating pickups contain a wire-wound coil suitably fixed within a hermetically sealed housing.
The movement of a permanent magnet embedded in a rotor produces an AC signal within the coil winding.
2. Pickup Coil Output- The generated AC sinewave is transmitted via 2 wire shielded cable that minimizes external
interference.
3. Your Pickup Coil- Has been selected to best suit your particular application. The reluctance coil provides the
highest full scale frequency and a lesser signal/noise ratio. The inductance coil has a higher signal/noise ratio
and a lower full scale frequency.
PRE-INSTALLATION INSPECTION
Pg.2
Your SPONSLER PRECISION TURBINE FLOWMETER is a measuring instrument capable of providing you with
high precision performance over a long period. It should be treated with care and not subjected to rough handling.
1. Unpack carefully and verify the information contained on the packing slip for proper MODEL Number, SERIAL
Number, and CALIBRATION Data.
2. Remove the instrument from the plastic packaging and remove the endfitting protectors from the flowmeter
housing.
3. Visually inspect the entire unit. Any visible damage should be reported to the manufacturer immediately.
4. Replace the endfitting protectors and return the Flowmeter to its plastic packaging. The unit may thus be stored
indefinitely until installation.
INSTALLATION
A. GENERAL PROCEDURE
1. Meter Position- FLOWMETERS are normally calibrated in a horizontal attitude. Best correlation of calibration,
therefore, occurs when installed and operated in this position. Meters may, however, be operated satisfactorily in
any position.
2. Flow Direction- ALL SPONSLER PRECISION TURBINE FLOW METERS are marked “IN” and “OUT” and have
an arrow to indicate the proper direction of the flow. (Bi-Directional flowmeters excluded)
3. Meter Location A. Relative- When it is expected that flow will be intermittent, the meter should not be mounted at a low point in
the piping system. Solids that settle or congeal in the meter may affect the meter’s performance.
B. Tolerance to Mechanical Vibration- Although the SPONSLER PRECISION TURBINE FLOWMETER is
designed for rugged service, the meter life may be increased by location in a minimum vibration area.
C. Tolerance to Electrical Interference- In order to achieve optimum electrical signal output from the
flowmeter, consideration must be given to its isolation from ambient electrical interference such as nearby
motors, transformers, and solenoids. (Section IV Maintenance Electrical)
4. System Pressure A. Minimum Operation Pressure- A minimum operating pressure should be maintained to preclude a change in
the calibration factor due to various types of two phase phenomena. The minimum operating pressure is a
function of the vapor pressure of the fluid and the presence of other dissolved gases. Maintenance of the
system back pressure serves to avoid cavitation or fluid separation.
Calculation of the back pressure is by the following formula:
BP = (meter ∆P x 2) + (VP x 1.25)
Where:
BP = Back pressure required
∆P = Flowmeter pressure drop @ maximum flow
VP = Product vapor pressure at maximum temperature (psig)
B. Maximum Meter Pressure- Safe working pressure for the flowmeter is determined by the size and type of
connecting fittings used and the materials of construction. Consult the factory for specifications for your
particular model.
B. PIPING
Pg.3
1. General Piping Considerations- As explained in the FORWARD, the fluid moving through the flowmeter engages
the angled blades of the turbine rotor. Thus the rotational velocity of the rotor is a function of the fluid velocity and
the blade angle engagement. Swirl present in the fluid ahead of the meter can change the effective angle of
engagement and, therefore, cause a deviation from the supplied calibration (done under controlled flow
conditions). Proper installation of the Flowmeter minimizes the harmful effects of fluid swirl.
2. The Meter Location- That section of the pipe immediately preceding, including, and following the flowmeter is
known as “THE METERING LOCATION”. Three typical metering arrangements are described in the following
section of this manual. Each is designed to minimize fluid swirl. A flowstraightener is also shown and should be
used where installation does not allow the otherwise straight run of pipe upstream of the meter. PLEASE NOTE:
The required lengths of pipe are given in pipe diameters and represent the minimum distances between piping
components that are recommended to eliminate flow disturbances.
3. Meter-By-Pass- Where possible, such as in a new piping system, it is advisable to include a valved by-pass around
the flowmeter. However, the by-pass connections are not to be placed within the recommended metering run.
4. Line Purge- In a newly installed piping system or one in which fittings have been disturbed, the line should be
flushed thoroughly prior to installing the instrument to minimize possible damage to the flowmeter from foreign
materials.
C. ELECTRICAL CONNECTION
The standard SPONSLER PRECISION TURBINE FLOWMETER pickup coil is designed to mate with an
MS310610SL-4S connector. A two-wire shielded cable should be used to lead from the connector to the electronic
instrument in use. The cable shield is connected (grounded) to the appropriate connector on the display unit ONLY,
in order to minimize ground-loop and interface difficulties. The connection cable should be located away from power
lines whenever possible.
Precautions should be taken when removing or installing the pickup coil. Any physical damage such as bent
threads or twisted leads are not covered by SPONSLER CO., INC warranty.
D. ASSEMBLY NOTES
1. Removal of internals should be performed in a clean area.
2. Ensure that internals are clean and dry before reassembling.
3 TYPICAL METERING RUNS
5D
*10D
FLOW
5D
5D
2D
3D
STRAIGHTENER
FLOW
20D
FLOW
5D
Pg.4
UPSTREAM
Pipe fitting immediately
preceding metering location
Wide open valve (gate or plug)
or
Sharp right angle bend
(mitered elbow)
or
straight run of pipe
Long radius bends
or
smooth elbows
or
two elbows
or
partially open valves
of any type
METERING LOCATION
DOWNSTREAM
Pipe fitting immediately
following metering
location.
Any fitting, valve or pipe
run
Any fitting, valve or pipe
run
*Minimum lengths of
straight pipe required
expressed in nominal pipe
diameters.
TYPICAL FLOWSTRAIGHTENER SECTION
1/5 DIAMETER
2 DIAMETERS
Pg.5
Flowstraightener- A full cluster of thin wall tubes fixed within a section of pipe.
The length of the internal tubes is equal to 2 diameters of outer pipe.
The diameter of internal tubes is equal to approximately 1/5 the inside diameter of outer pipe. This
requires 18 to 20 such tubes.
FIGURE 1: 1/4” PRECISION TURBINE FLOWMETER
HOUSING: AN, NPT, FLANGED
5
3
2
1
6
DOW NSTREAM
UPSTREAM
8
5
7
4
ENDVIEW
4
DISASSEMBLY FOR 1/4” METERS
REASSEMBLY FOR 1/4” METERS
ITEM
DESCRIPTION
QTY
1
HOUSING
1
2
ROTOR
1
3
BEARING
2
4
CONE 2 5
HANGER
2
6
SHAFT
1
7
RETAINING RING
1
8
PICKUP COIL
1
Pg.6
1. Remove retaining ring; Lift out carefully by placing a small flathead screw driver under the
radius notch.
2. Remove internals from housing.
3. Review all parts for damage. STOP: If any part appears damaged DO NOT
REASSEMBLE call factory for instructions.
4. Clean parts thoroughly before reassembling.
NOTE: Internals must go back together the exact way that they come out.
1. Insert cones in hangers, and bearings in rotor.
2. Assemble internals as illustrated.
3. Slide internals in housing, (position hangers as illustrated in endview).
4. Install retaining ring - Make sure it seats in groove.
5. Observe that hangers do not turn.
6. Observe that rotor spins freely.
FIGURE 2: 1/2” & LARGER PRECISION TURBINE FLOWMETER
F
ABCDE
END VIEW
1B
1C
FIT TO ROTOR
L
DISASSEMBLY FOR 1/2” AND LARGER METERS
REASSEMBLY FOR 1/2” AND LARGER METERS
FOR BALL BEARING
FOR SLEEVED BEARING
FOR BALL BEARING
FOR SLEEVED BEARING
1. Remove lock nut from shaft end marked
Before beginning: Assembly must go back
NOTE: If any part appears damaged “DO
assembly. DO NOT OVER TIGHTEN.
ITEM
DESCRIPTION
QTY
ITEM
DESCRIPTION
QTY
A
BEARING
2
1A
CARBIDE SLV.
1
C
CONE 2 1C
GRAPHITAR SLV
1 D CLIP ASSY.
2 2 CARBIDE JRNL
1 E LOCK NUT
2 F
SHAFT
1
Pg.7
B ROTOR 1 1B TEFLON SLV. 1
2 CARBIDE ONLY
FIT TO SHAFT
DO NOT REMOVE
PICKUP COIL
HOUSING: AN, NPT, FLANGE
(AN shown)
1A
DO NOT REMOVE
C
“IN”.
2. Insert extraction hook into “IN” clip
assembly and extract with a parallel
pulling motion.
3. Remove cone, bearings and rotor.
4. Remove “OUT” clip assembly with
extraction hook as directed in step 2. DO
NOT remove lock nut. Leave clip, cone,
shaft and nut assembled.
(Refer to diagram)
together the exact way it comes out.
1. Remove lock nut from shaft end marked
“IN”.
2. Insert extraction hook into “IN” clip
assembly and extract with a parallel
pulling motion.
3. Remove cone and rotor. DO NOT attempt
to remove bearing from rotor.
4. Remove “OUT” clip assembly with
extraction hook as directed in step 2. DO
NOT remove lock nut. Leave clip, cone,
shaft and nut assembled.
(Refer to diagram)
NOT REASSEMBLE”. Call factory for
instructions
1. Place meter on table vertically, “OUT” side
upward.
2. Insert “OUT” clip/cone/shaft/nut assembly
into housing as illustrated in endview
diagram, push down as far as it will go
(seating against step in housing)
Clip bundle diameter may need to be
clamped for easier insertion.
3. Flip meter around and insert bearing,
rotor, bearing , then cone.
Be sure the “IN” marking on the rotor
coincides with the “IN” marking on the
housing.
4. Insert “IN” clip assembly.
5. Screw on lock nut snug against “IN” clip
assembly. DO NOT OVER TIGHTEN.
NOTE: If any part appears damaged DO
NOT REASSEMBLE. Call factory for
instructions
1. Place meter on table vertically, “OUT” side
upward.
2. Insert “OUT” clip/cone/shaft/nut assembly
into housing as illustrated in endview
diagram, push down as far as it will go
(seating against step in housing)
Clip bundle diameter may need to be
clamped for easier insertion.
3. Flip meter around and insert rotor with
bearing , then cone.
Be sure the “IN” marking on the rotor
coincides with the “IN” marking on the
housing.
4. Insert “IN” clip assembly.
5. Screw on lock nut snug against “IN” clip
FIGURE 3: MF20-90 LO-FLO SERIES FLOWMETER
G
F
D-1
C-1
K
B
C-2
D-2
E
H
I
J
A
AN FLARE SHOWN
INTERNAL ASSEMBLY IS
TYPICAL FOR NPT, TUBE FIT TING
HIGH PRESSURE, FNPT, & FLANGED
STANDARD LO-FLO SERIES
.
SLEEVED BEARING INTERNALS
1
1
1
1
1
1
1
1
PICKUP COIL
ORIFICE LOCK SCREW
ORIFICE
SHAFT
RETAINER
SCREW PLUG
HOUSING
J
I
H
E
B
A
QTY
DESCRIPTION
DESIGNATOR
ROTOR/BEARING ASSY.
D-2
C-2
K
O-RING****
1
**** CONSULT FACTORY FOR O-RING MATERIALS
AND INSTALLATION
1
O-RING****
K
C-1
D-1
ROTOR/SHAFT ASSY.
1
1
1
1
2
1
1
1
1
BALL BEARING INTERNALS
PICKUP COIL
ORIFICE LOCK SCREW
ORIFICE
BEARING CUP
BEARING
RETAINER
SCREW PLUG
HOUSING
J
I
H
G
F
B
A
QTY
DESCRIPTION
DESIGNATOR
This assembly r eferences al l Model Number s
with Graphitar (GS), Teflon (TS), Carbide (CS),
This assembly r eferences al l Model Number s
with Teflon Ball (TB), Metal Ball (MB) and
and Flu orosint (F S) sleeved bear ing designat ors
Cryo Bal l (CB) bear ing design ators.
DISASSEMBLY PROCEDURE
REASSEMBLY PROCEDURE
FOR BALL BEARING
FOR SLEEVED BEARING
FOR BALL BEARING
FOR SLEEVED BEARING
Pg.8
1. With a large screw driver, remove screw
plug.
2. Insert 4-40 screw into either of the tapped
holes on the face of the retainer and
extract from housing.
3. Remove bearings and rotor/shaft
assembly.
4. Review all parts for damage.
A. Check bearings thoroughly.
B. Check o-ring for cracks/nicks.
Replace if evident.
1. With a large screw driver, remove screw
plug.
2. Insert 4-40 screw into either of the tapped
holes on the face of the retainer and
extract from housing.
3. Remove rotor/bearing assembly.
4. Review all parts for damage.
A. Check bearing faces and bore
thoroughly.
B. Check o-ring for cracks/nicks
Replace if evident
NOTE: If any part appears damaged, DO
NOT REASSEMBLE, call factory for
instructions.
1. Insert bearing into bearing cup.
2. Insert rotor/shaft assembly and bearing.
3. Insert retainer (with o-ring) and remove
4-40 screw.
4. Screw in screw plug.
NOTE: If any part appears damaged, DO
NOT REASSEMBLE, call factory for
instructions.
1. Place rotor/bearing assembly on shaft.
2. Insert retainer (with o-ring) and remove
4-40 screw.
3. Screw in screw plug.
For liquid applications: Internals work best
when wet.
FIGURE 4: MF100-175 LO-FLO SERIES FLOWMETER
SLEEVED BEARING INTERNALS
1
1
1
1
1
1
PICKUP COIL
RETAINER
SCREW PLUG
HOUSING
H
B
A
QTY
DESCRIPTION
DESIGNATOR
ROTOR/BEARING ASSY
.
C-2
O-RING****
A
AN FLARE SHOWN
D-1
C-1
B
C-2
E
D-1
SHAFT
1
G
F-2
H
D
F-1
F-2
G
**** CONSULT FACTORY FOR O-RING MATERIALS
AND INSTALLATION.
F-1
C-1
SHAFT
E
D
O-RING****
1
1
1
2
1
1
1
1
BALL BEARING INTERNALS
PICKUP COIL
BEARING
ROTOR
RETAINER
SCREW PLUG
HOUSING
H
G
B
A
QTY
DESCRIPTION
DESIGNATOR
This assembly referenc es all Model Numbers
and Fluorosint (FS) sleev ed bearing designator.
Cryo Ball (CB) bearing des ignator.
INTERNAL ASSEMBLY IS
TYPICAL FOR NPT, TUBE FITTING,
HIGH PRESSURE, FNPT & FLANGED
STD. LO-FLO SERIES.
DISASSEMBLY PROCEDURE
REASSEMBLY PROCEDURE
FOR BALL BEARING
FOR SLEEVED BEARING
FOR BALL BEARING
FOR SLEEVED BEARING
Replace if evident
Pg.9
1. With a large screw driver, remove screw
plug.
2. Insert 4-40 screw into either of the tapped
holes on the face of the retainer and
extract from housing.
3. Remove bearings and rotor. It is not
necessary to remove shaft.
4. Review all parts for damage.
A. Check bearings thoroughly.
B. Check o-ring for cracks/nicks.
Replace if evident.
1. With a large screw driver, remove screw
plug.
2. Insert 4-40 screw into either of the tapped
holes on the face of the retainer and
extract from housing.
3. Remove rotor/bearing assembly. It is not
necessary to remove shaft.
4. Review all parts for damage.
NOTE: If any part appears damaged, DO
NOT REASSEMBLE, call factory for
instructions.
1. Insert bearings into rotor and insert in
housing on shaft.
3. Insert retainer (with o-ring) and remove
4-40 screw.
4. Screw in screw plug.
A. Check bearing faces and bore
thoroughly.
B. Check o-ring for cracks/nicks
NOTE: If any part appears damaged, DO
NOT REASSEMBLE, call factory for
instructions.
1. Place rotor/bearing assembly on shaft in
housing.
2. Insert retainer (with o-ring) and remove
4-40 screw.
3. Screw in screw plug.
For liquid applications: Internals work best
when wet.
FIGURE 5: CORROSIVE SERIES FLOWMETER
CORROSIVE SERIES HOUSING
ASSEMBLY.
DIRECTION OF RE-
5
432
1
PICKUP COIL
NOTE: HAND TIGHTEN
DO NOT USE FORCE
FLOW
DISASSEMBLY FOR CORROSIVE METERS
REASSEMBLY FOR CORROSIVE METERS
for instructions.
ITEM
DESCRIPTION
QTY
4
SLEEVE 1 5
DOWNSTREAM HANGER
1
Pg.10
1 END NUT 1
2 UPSTREAM HANGER 1
3 ROTOR/PIVOT ASSEMBLY 1
1. Unscrew end nut from housing.
2. Retract upstream hanger from housing.
3. Remove rotor. NOTE: Pivot is pressed into rotor DO NOT ATTEMPT
TO REMOVE.
4. From opposite end of housing, push sleeve and downstream hanger
through upstream end of housing.
5. Review all parts for damage. Be sure the bearings in the end of the
hangers are still intact. Clean off all debris before reassembling.
NOTE: If any part appears damaged DO NOT REASSEMBLE, call factory
1. Assemble internals as illustrated.
2. From upstream end of housing, insert internals into housing.
It may be necessary to tilt the meter housing slightly for easier insertion
of the internals.
3. Screw in end nut and tighten.
NOTE: For proper operation, internals must be housed.
For liquid applications: internals work best when wet.
DISASSEMBLY FOR 3A SANITARY METERS
REASSEMBLY FOR 3A SANITARY METERS
ITEM
DESCRIPTION
QTY
1
HOUSING
1 2 ROTOR
1 3 CONE 2 4
HANGER
2 5 O-RING
1 6 SHAFT (Carbide or Teflon)
1
Pg.11
FIGURE 6: 3A SANITARY TURBINE FLOWMETER
1. Remove O-ring.
2. Push entire assembly out through the O-ring side of the meter.
3. Review all parts for damage
NOTE: If any part appears damaged, DO NOT REASSEMBLE. Call the factory for instructions.
• Check bearings thoroughly
• Check O-rings for cracks and nicks
NOTE: Internals must go back together the exact way that they come out.
1. Assemble the internal assembly as illustrated.
2. Push the assembly into the housing on the O-ring side.
3. Butt clip hanger up against the step inside the housing
4. Reinstall the O-ring.
5. Make sure the rotor spins freely and the clip hangers do not turn at all.
© 2009
Pub. No. MN-PTF-IOMr1
(6/2010)
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