MBH SP-7 Manuale di programmazione
SELF PRIMING
MUD PUMP
Instruction, Installation, Operation
and Maintenance Manual
A Mark of Quality
A Mark of Quality
© 2016 mbh pumps (gujarat) pvt. ltd.
ISO 9001
Certied Company
2 3
© 2016 mbh pumps (gujarat) pvt. ltd. Self Priming Mud Pump © 2016 mbh pumps (gujarat) pvt. ltd. Self Priming Mud Pump
1. INTRODUCTION
MBH SP type pumps are centrifugal pumps with an added feature of self priming
mechanism. The pump casing is to be lled initially with the pumping liquid after its
installation. The design of SP type pump allows pumping out certain amount of mud,
dirt and suspended solids. These pumps are suitable for handling water and non-
Corrossive liquids ambient temperature.
Pumps when properly installed and given proper care in operation and maintenance
should operate satisfactorily for a long period.
When pump is revived some time before actual use of pump, it should be inspected
out-side in a dry place. The shaft should be rotated freely before use.
2. PRINCIPAL OF OPERATION
The self priming action of the pump works on diffusion principal. Initially the complete
pump casing is lled with the pumping liquid which is retained by its ap valve assembly.
When the pump starts, due to centrifugal action, ap assembly opens and the air from
suction branch mixes with liquid. The mixture of air and liquid which is transferred into
large casing outside the pumping chamber and air escaped through delivery branch.
De-aired liquid again diffuses with the impeller and carries off more air from suction
branch. No sooner all the air is eliminated, diffusion of the liquid stops and the pump
works as a centrifugal pump with its full efciency.
3. OPERATION & MAINTENANCE
3.1. OPERATION PROCEDURE
Install pumpset on foundation. Operate the pump as per following instructions.
(i) Fill the pump casing with clear water/pumping liquid through the priming plug
provided on top of the body. Close the plug after lling.
(ii) Turn the lantern ring grease cup 2 to 3 turns. This should be carried out as per need.
(iii) Do not run the pump dry.
(iv) If the pump is idle for some time due to dirt/dust collected, the impeller sticks. Give
jerk at the free end of the shaft to ensure free rotation.
(v) If the pump is used to handle water containing solids and silt, it is necessary to
wash out the same with clean water, before restarting. Restarting of pump should
be done after lling clean water.
(vi) The bearings should be lubricated regularly.
3.2 WARNING:
(i) When dirty water is handled by the pump of diesel engine set the same water should
not be used for engine cooling. In such a case radiator cooling is recommended
or use air cooled diesel engine.
(ii) Use correct grade grease in grease cups. Servo Gem-2 (Indian Oil Make) or
equivalent is recommended.
3.3 MAINTENANCE TIME TABLE :
(1) DAILY CHECK (2) PERIODICAL
(I) Priming Time (i) Pressure gauge reading
(ii) All pipe connections (ii) Bearing Temperature
(ii) Suction strainer (if any) (iii) Leak through stufng box
(iv) Noise and vibration
(v) Voltage and current.
Open the pump, check and clean interior parts.
(i) Remove impeller, replace of vanes are worn seriously.
(ii) Replace shaft sleeve if worn out.
(iii) Replace gland packing of worn out.
(iv) Replace worn out parts.
(v) Replace wear plates of worn out.
3.4 PUMP MAINTENANCE PROCEDURE
(A) Dismantling Procedure
a) Remove the suction and the Delivery Pipe connection. Drain the pump Remove
the grease Cups. Pipe Nipples etc. Separate the Pump from Engine/Motor and
Base Plate.
b) Remove Suction Flange and Delivery Flange. Remove Suction Cover with Flap
Valve assembly from Delivery Casing.
c) Dismantle the Driving Unit (i.e. Assemble of Stufng Box Housing, Bearing Housing,
Shaft, Ball Bearing, Impeller etc.) by loosening the nuts from Delivery Casing.
d) Loosen Impeller Nut, Tighten the release bolts in the tapping of Impeller, and take
out the impeller. Ensure removal without damage to vanes.
e) Loosen the Gland and remove Stufng Box, Packing Lantern Rings and washer for
Stufng Box Packing.
f) Take out the pump Coupling by unscrewing the Grub Screw, Remove Coupling
Key, Bearing Nut and Driving End Bearing Cover.
g) Remove Shaft Sleeve, Pull the Shaft by using Press or Puller. Bearing should not
be removed by hammering.
h) Remove N.D.E. Wearing Plate from Delivery Casing by loosening Countersunk
Head Screw. Remove D. E. Side Wearing Plate from Stufng Box Housing by
loosening Countersunk Head Screw on applicable models.
i) After dismantling all the parts, it is necessary to clean and inspect them. The following
parts are to be checked for wear and damage and are to be replaced, if necessary.
• Impeller • Pump Shaft • Ball Bearing • Gland • Lantern Rings
• Water Deector • Wearing Plates • Stufng Box Packing • Rubber Flap
• Keys • Shaft Sleeve • Flat Gasket for Shaft Sleeve
4 5
© 2016 mbh pumps (gujarat) pvt. ltd. © 2016 mbh pumps (gujarat) pvt. ltd.
(B) Reassembly Procedure :
a) Apply a thin layer of grease to all surfaces which have to be air tight.
b) Clean Recirculating Port in Delivery Casing.
c) Complete the Flap - Valve Assembly. If it is dismantled with Suction Cover and
wearing plates.
d) Mount Bearings on the Shaft so that Bearing rest against the steps provided on
the Shaft. Apply grease between the two faces of the Bearings. Ball Bearings should
be press-tted. If it is not possible then hammer gradually the inner race of the Ball
Bearings by putting suitable spacer on it.
e) Insert the Shaft into the Bearing Housing from driving end.
f) Insert the Bearing Cover, (Bearing Cap, Water Deector, Gland and Washer for
stufng Box Packing) on the Shaft from Non driving End Side Applicable models.
g) Fit sub-assembly of stufng Box Housing on Bearing Housing as applicable.
h) Put Flat Gasket for Shaft Sleeve on the Shaft Sleeve Slot / Keyway Matches with
Shaft - Keyway.
i) Fit the Bearing Cover D. E. to the Bearing Housing (as per the Model)
j) Insert the Impeller Key into the Shaft and Shaft Sleeve and mount the Impeller on
the Shaft. Lock it by Impeller Nut along with its washer. Tighten the Bearing Nut on
the Shaft. Check clearance between Impeller and Wearing Plate D.E. it should be
0.15 to 0.60mm
k) Fit the Driving Unit (i.e. assembly of Stufng Box Housing, Bearing Housing, Bearing
Shaft, Impeller etc.) to the delivery Casing and tighten it with the help of Nuts. The
clearance between impeller and wearing Plate N.D.E. should be 0.25 to 0.35mm.
This should be adjusted by inserting required thickness of paper packing, between
stufng Box Housing and Delivery Casing. After tting the Driving Unit, see that
impeller rotates freely.
l) Insert two Stufng Box Packings, Lantern Ring duly lled with grease and again two
Stufng Box Packings. The joints of the Stufng Box Packings should be 180 to
each other. Tighten the Gland by nuts.
m) Insert Coupling Key on the Shaft and mount the Pump Couplings on the Shaft and
tighten it by Grub Screw.
n) Fix up grease Cups for Bearing D.E., N.D.E. and Stufng Box.
o) Tighten Sub-assembly of Suction Cover and Flap Valve with Delivery Casing and
then tighten the Delivery Flange and Suction Flange. Tighten this to Delivery Casing
with its washer.
3.5 COUPLING DETAILS FOR BARE SHAFT PUMPS FOR MOTOR DRIVE LOVE
JOY MAKE.
Sr.
No. Pump
Recommended
Motor Rating
(H.P./ Kw)
Recommended Coupling Model
Loverjoy / Equivalent)
I MBH SP-7 1 / 0.75 2900 RPM L - 095
II MBH SP-9 2 / 1.50 2900 RPM L - 095
III MBH SP-11 3 / 2.20 2900 RPM L - 095
IV MBH SP-16 5 / 3.70 1450 RPM L - 100
V MBH SP-23 10 / 7.50 1450 RPM L - 100
4.0 GLAND PACKING CHART
Sr.
No.
Pump
Type
No of
Packings
Size in MM
(Height x
Width)
Length of
Packing /
Set (MM)
Material
I MBH SP-7 4 8 x 8 116.5 Graphited Cotton
II MBH SP-9 4 8 x 8 116.5 --- Do --
III MBH SP-11 4 9 x 9 143.0 --- Do --
IV MBH SP-16 4 8 x 8 157.0 --- Do --
V MBH SP-23 4 8 x 8 157.0 --- Do --
4.1 BEARING DETAILS
Sr.
No.
Pump
Type
Bearing at Driving
End (SKF / Equivalent)
Bearing at Non Driving
End (SKF / Equivalent)
I MBH SP-7 6305 6205
II MBH SP-9 6305 6205
III MBH SP-11 6305 6205
IV MBH SP-16 6306 6206
V MBH SP-23 6306 6206
4.2 TYPE OF IMPELLER AND WEARING PLATE DETAILS
Sr.
No.
Pump Model
Bare Shaft /
Mono Version
Type of
Impeller
Wearing Plate
Details Non
Driving End
Wearing Plate
Details Non
Driving End
I MBH SP-7 SEMI-OPEN No No
II MBH SP-9 SEMI OPEN Yes No
III MBH SP-11 SEMI OPEN Yes No
IV MBH SP-16 SEMI OPEN No No
V MBH SP-23 OPEN Yes Yes
4.3 WATER FILLING CAPACITY
Sr.
No. Pump Type Water Filling
Capacity (Liters)
I MBH SP-7 5.1
II MBH SP-9 6.1
III MBH SP-11 10.0
IV MBH SP-16 14.0
V MBH SP-23 37.2
Self Priming Mud Pump Self Priming Mud Pump
TROUBLE SHOOTING CHART
6 7
© 2016 mbh pumps (gujarat) pvt. ltd. © 2016 mbh pumps (gujarat) pvt. ltd.
Sr.
No. Defects Causes Remedy
1. Priming
takes
long time
1) Insufcient quantity of
water / water not lled in
pump casing
2) Suction Pipe and Strainer
(if any) clogged partially
or fully
3) Pump Speed too low
4) Suction Lift too high
5) Leakage in Suction Pipe.
6) Too warm liquid in pump
Casing
7) More clearance between
Impeller & Wearing plate
N.D.E.
8) Shaft Sleeve & Gland
Packing worn and air leaks
9) Recirculating ports in
Delivery Casing clogged
partially or fully
1) Fill up pump casing with
clear water or liquid be
pumped
2) Clean Suction branch
3) Check up speed of prime
mover and adjust
4) Reduce Suction Lift
5) Prevent leakage in
Suction Pipe
6) Replace liquid by cold liquid
7) Measure the clearance and
adjust by using proper
packing
8) Replace Shaft Sleeve and
Gland Packing with Sleeve
Gasket
9) Clean recirculating ports of
Delivery Casing
2. Water
Delivery
inadequate
1) Speed too low.
2) Leakage in Suction side
tting and piping
3) Discharge Head to high
4) Pump Casing empty
5) Rubber Flap Valve cogged
6) Shaft Sleeve / Gland
Packing worn and air leaks
7) More clearance between
Impeller and wearing Plate
8) Suction Lift too high or
Suction Pipe too long
1) Check the speed of prime
mover and adjust
2) Prevent leakage in suction
pipe and tting
3) Check up vertical head and
frictional losses
4) Fill up the pump casing
5) Check up rubber Flap
assembly & leakage from
pump casing
6) Replace the Shaft Sleeve/
Gland Packing.
7) Measure the clearance and
adjust by using Proper
packing
8) Avoid High Suction lift and
Suction Piping
TROUBLE SHOOTING CHART
Sr.
No. Defects Causes Remedy
3. Pump
Consumes
more
power
1) Speed too high
2) Head less than specied
range
3) Shaft bent
4) Misalignment of the set
1) Check and correct the speed.
2) Provide minimum specied
head
3) Check and replace the shaft
4) Correct the alignment
between pump and prime
mover
4. Low
Pressure
1) Prime mover running below
rated speed
2) Leakage through Gland
Packing
3) Too much clearance between
Impeller and wearing Plate
1) Check the Speed of prime
mover and correct it
2) Replace Gland Packing
3) Measure the clearance and
adjust by using proper
packings
5. Pump
Vibrates
and
makes
noise
1) Pump Casing not lled with
water / liquid (it is possible
only priming time)
2) Suction Lift too high
3) Misalignment
4) Foundation not rigid
5) Shaft Bent
6) Bearing worn out
7) Lack of Lubrication
8) Pump operates at very
low capacity
1) Fill up the pump Casing
2) Reduce the Suction lift
3) Correct the alignment
between pump and Prime
mover
4) Provide rigid foundation,
tighten the bolts
5) Replace the shaft
6) Check and replace Bearing
7) Lubricate the Bearing
properly
8) Reduce Total Head
6. Shorter
Bearing
life
1) Misalignment
2) Shaft Bent
3) Excessive Grease or
inadequate grease
4) Dirty water getting into
bearings
1) Correct the alignment of
Pump and Prime Movers
2) Check the Shaft condition
and replace, if necessary
3) Check up lubrication
4) Protect bearing neatly
replace water deector
Self Priming Mud Pump Self Priming Mud Pump
No. DESCRIPTION No. DESCRIPTION
1 PUMP BODY 20 FLANGE-DELIVERY SIDE
2 IMPELLER (C.I.) 21 FLANGE-SUCTION SIDE
3 WEARING PLATE 22 KEY FOR IMPELLER
4 PUMP SHAFT 23 KEY FOR COUPLING
5 BEARING HOUSING 24 IMPELLER NUT
6 STUFFING HOUSING 25 WASHER FOR IMPELLER NUT
7 GLAND BUSH 26 BEARING LOCK NUT
8GLAND PACKING SET 27 DRAIN PLUG
9 SHAFT SLEEVE (S.S.) 28 DRAIN PLUG WASHER
10 WASHER FOR STUFFING BOX
PACKING 29 WATER PLUG
(PRIMING HOLE)
11 LANTERN RING 30 GREASE CUP
12 WATER DEFLECTOR 31 COUNTER SUNK SCREW
FOR WEAR PLATE
13 SUCTION HOUSING 33 PACKING FOR BEARING
HOUSING (PAPER)
14 FLAP VALVE (RUBBER) 34 RUBBER PACKING FOR
DEL.+SUC. FLANGE
15 WEIGHT FOR FLAP VALVE 35 NUT, BOLT & WASHER FOR FLAP
VALVE
16 GASKET (SHIM-BRASS) 36 T-BOLT WITH NUT FOR
GLAND-BUSH
17 INSP. WINDOW COVER 37 BEARING AT DRIVE END
18 BEARING COVER COUPLING SIDE 38 BEARING AT NON-DRIVE END
19 BEARING COVER (NON-DRIVE END)
8 9
© 2016 mbh pumps (gujarat) pvt. ltd. © 2016 mbh pumps (gujarat) pvt. ltd.
No. DESCRIPTION No. DESCRIPTION
1 PUMP BODY 20 FLANGE-DELIVERY SIDE
2 IMPELLER (C.I.) 21 FLANGE-SUCTION SIDE
4 PUMP SHAFT 22 KEY FOR IMPELLER
5 BEARING HOUSING 23 KEY FOR COUPLING
7 GLAND BUSH 24 25IMPELLER NUT
8GLAND PACKING SET 25 WASHER FOR IMPELLER NUT
11 LANTERN RING 30 GREASE CUP
12 WATER DEFLECTOR 32 PACKING FOR BEARING
HOUSING (PAPER)
15 WEIGHT FOR FLAP VALVE 33 RUBBER PACKING FOR
DEL+SUC. FLANGE
16 GASKET (SHIM-BRASS) 34 NUT, BOLT & WASHER FOR
FLAP VALVE
17 INSR WINDOW COVER 35 T-BOLT WITH NUT FOR
GLAND-BUSH
18 BEARING COVER COUPLING SIDE 36 BEARING AT DRIVE END
19 BEARING COVER (NON-DRIVE END) 37 BEARING AT NON-DRIVE END
CROSS SECTION DRAWING CROSS SECTION DRAWING
Self Priming Mud Pump Self Priming Mud Pump
MODEL :
MBH SP-9
MBH SP-11
MBH SP-16
MODEL :
MBH SP-7
SELF PRIMING MUD PUMP
The pump is warranty against defects in material and
workmanship under normal use and service for the period of 15
months from the date of purchase or 12 months from the date
of commissioning, whichever is less.
The General terms and conditions for above guarantee are :
1. This warranty is valid only if the pump is operated strictly as
per the Instructions given in the user guide attached herewith.
2. Our obligation shall be limited to rectifying; repairing or
replacing defective items, ex-works/service station/Authorized
Service Center, provided the purchaser has given immediate
written notice. The equipment for repairs should be returned
to us duly packed, on prepaid freight basis.
Model : Pump Sr. No.
Customer Name :
Address :
Date of Purchase / Bill No.:
Dealers Name :
Signature : Date :
14, G.I.D.C. Naroda Indl. Estate, Ahmedabad-382 330, India.
Phone : 079-2282 3066 / 2282 1018
Website : www.mbhpumps.com
10 11
WARRANTY
WARRANTY
© 2016 mbh pumps (gujarat) pvt. ltd. © 2016 mbh pumps (gujarat) pvt. ltd.
No. DESCRIPTION No. DESCRIPTION
1 PUMP BODY 20 FLANGE-DELIVERY SIDE
2 IMPELLER (C.I.) 21 FLANGE-SUCTION SIDE
3 WEARING PLATE 22 KEY FOR IMPELLER
4 PUMP SHAFT 23 KEY FOR COUPLING
5 BEARING HOUSING 24 IMPELLER NUT
6 STUFFING HOUSING 25 WASHER FOR IMPELLER NUT
7 GLAND BUSH 26 BEARING LOCK NUT
8GLAND PACKING SET 27 DRAIN PLUG
9 SHAFT SLEEVE (S.S.) 28 DRAIN PLUG WASHER
10 WASHER FOR STUFFING
BOX PACKING 29 WATER PLUG
(PRIMING HOLE)
11 LANTERN RING 30 GREASE CUP
12 WATER DEFLECTOR 31 COUNTER SUNK SCREW
FOR WEAR PLATE
13 SUCTION HOUSING 33 PACKING FOR BEARING HOUS-
ING (PAPER)
14 FLAP VALVE (RUBBER) 34 RUBBER PACKING FOR
DEL.+SUC. FLANGE
15 WEIGHT FOR FLAP VALVE 35 NUT, BOLT & WASHER
FOR FLAP VALVE
16 GASKET (SHIM-BRASS) 36 T-BOLT WITH NUT FOR
GLAND-BUSH
17 INSP. WINDOW COVER 37 BEARING AT DRIVE END
18 BEARING COVER COUPLING SIDE 38 BEARING AT NON-DRIVE END
19 BEARING COVER (NON-DRIVE END)
CROSS SECTION DRAWING
Self Priming Mud Pump Self Priming Mud Pump
MODEL :
MBH SP-23
14, G.I.D.C. Naroda Indl. Estate, Ahmedabad-382 330, India.
Phone : 079-2282 3066 / 2282 1018
Website : www.mbhpumps.com
12/2016
ISO 9001
Certied Company
This is the property of
OTHER PRODUCTS
OTHER PRODUCTS
A Mark of Quality
A Mark of Quality
POLDER
PUMP
HORIZONTAL
SPLIT CASING PUMP
SUBMERSIBLE
SEWAGE PUMP
CENTRIFUGAL
BACKPULL OUT PUMP
PORTABLE
SUBMERSIBLE PUMP
DEWATERING
PUMP
SUBMERGED
CENTRIFUGAL PUMP
Specifications and performance are subject to change without prior notice.
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