SERVICE & OPERATING MANUAL
AIR OPERATED DOUBLE DIAPHRAGM PUMP
B06
AIR OPERATED
DOUBLE DIAPHRAGM PUMP
Non-Metallic
04 Series
Table of Contents
Service / Maintenance Log 2
Performance Curve 3
Dimensions 3
Engineering Data & Temperature limitations 4
Explanation of Pump Nomenclature 4
Principle of Pump Operation 5
Installation guide 5
Troubleshooting 6
Recycling 6
Important Safety Information 6
Warranty 7
Service 7
Air Valve Overhaul 7
Wet-side Overhaul 7
Parts List 8
Assembly Drawing 9
Declaration Of Conformity 10
HG-CF-880 Rev. Y - 17.09.12
Page 1
Service / Maintenance Log
Date Details Completed
Contact Phone / Fax No.
HG-CF-880 Rev. Y - 17.09.12
Contact Information
Page 2
GA Drawing & Performance Curve
General Assembly :- B06 Non-Metallic pump
All dimensions +/- 1mm
B06 Non-Metallic Pump Performance Curve, performance based on water at ambient temperature.
HG-CF-880 Rev. Y - 17.09.12
Page 3
TECHNICAL DATA
FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT/STROKE
1/4” BSP (T) 0 - 16 Litres/Minute
(0 - 3.5 Gallons/Minute)
MAX. WORKING PRESSURE AIR INLET TEMPERATURE LIMITS PUMP WEIGHTS :-
5.0 Bar (72.5 psi) 1/4” BSP (F) Determined by Elastomers PP :- 1.2 Kg
1 MM
(1/16”)
51 Meters
(167 ft)
0.015 Litres
(0.003 UK Gallons)
KP :- 1.4 Kg
Caution - Operating temperature limitations are as follows:
Materials
Buna-n - General purpose, oil resistant. Shows good solvent, oil, water and hydraulic fluid resistance. Should not
be used with highly polar solvents like acetone and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons.
EPDM - Shows very good water and chemical resistance. Has poor resistance to oils and solvents, but is fair on
ketones and alcohols.
Neoprene - All purpose. Resistant to vegetable oil. Generally not affected by moderate chemicals, fats greases
and many oils and solvents. Generally attacked by strong oxidising acids, ketones, esters, nitro hydro carbons and
chlorinated aromatic hydrocarbons.
Santoprene® - Injection moulded thermoplastic elastomer with no fabric layer. Long mechanical flex life.
Excellent abrasion resistance.
Virgin PTFE - Chemically inert, virtually impervious. Very few chemicals are known to react chemically with
PTFE : molten alkali metals, turbulent liquid or gaseous fluorine and a few fluoro-chemicals such as chlorine trifluoride or oxygen difluoride which readily liberate free fluorine at elevated temperatures.
Viton® - Shows good resistance to a wide range of oils and solvents : especially all alphatic, aromatic and
halogenated hydrocarbons, acids, animal and vegetable oils.
Polypropylene - High strength, light weight, corrosion resistant polyolefin which easily withstands most chemi-
cals, with no known solvent at room temperature.
TYPICAL CODE = B 06. 04. P P. B B. E T P
Operating Temperatures
Maximum Minimum Optimum
176oF
80oC
212oF
100oC
212oF
100oC
212oF
100oC
356oF
180oC
356oF
180oC
158oF
70oC
-18oF
-28oC
-11oF
-24oC
-4oF
-20oC
-10oF
-23oC
32oF
0oC
0oF
-18oC
32oF
0oC
50o to 140oF
10o to 60oC
50o to 212oF
10o to 100oC
50o to 130oF
10o to 54oC
50o to 212oF
10o to 100oC
50o to 212oF
10o to 100oC
75o to 212oF
24o to 100oC
50o to 140oF
10o to 60oC
MODEL - B06
DESIGN LEVEL
WETTED COMPONENTS
P : POLYPROPYLENE
K : PVDF (KYNAR)
NON - WETTED COMPONENTS
P : POLYPROPYLENE (Glass filled)
VALVE TYPE
B : BALL
SUCTION ORIENTATION
B : BOTTOM
This pump should be used in accordance with the requirements of the Safety, Health & Welfare at Work Act 2005.
All business conducted subject to IDEX Pump Technologies, Ireland. Terms and Conditions of Sale, available on request.
VALVE SEATS
P : POLYPROPYLENE
K : PVDF (KYNAR)
VALVE BALLS
T : PTFE
V : VITON
S : 316 STAINLESS STEEL
DIAPHRAGMS
E : EPDM
H : POLYESTER
R : SANTOPRENE
T : PTFE
V : VITON
O : ONE PIECE PTFE
IMPORTANT
IDEX Pump Technologies (Ireland) Ltd.,
A Unit of IDEX Corporation,
R79, Shannon, Co Clare, IRELAND.
TEL. : +353 61 471933 FAX. : +353 61 475046
Web Site : www.blagdonpump.com
E-Mail : sales@blagdonpump.com
HG-CF-880 Rev. Y - 17.09.12
Page 4
PRINCIPLE OF PUMP
OPERATION
This ball valve type diaphragm pump is
powered by compressed air and is a 1:1 ratio
design. The inner side of one diaphragm
chamber is alternately pressurised while
simultaneously exhausting the other inner
chamber. This causes the diaphragms, which are
connected by a common shaft secured by plates
to the centres of the diaphragms, to move in a
reciprocating action. (As one diaphragm
performs a discharge stroke the other diaphragm
is pulled to perform the suction stroke in the
opposite chamber.) Air pressure is applied over
the entire inner surface of the diaphragm while
liquid is discharged from the opposite side of
the diaphragm. The diaphragm operates in a
balanced condition during the discharge stroke
which allows the pump to be operated at
discharge heads of over 200 feet (61 meters) of
water.
For maximum diaphragm life, keep the pump as
close to the liquid being pumped as possible.
Positive suction head in excess of 10 feet of
liquid (3.048 meters) may require a back
pressure regulating device to maximize
diaphragm life.
Alternate pressurising and exhausting of the
diaphragm chamber is performed by an
externally mounted, pilot operated, 2 way type
distribution valve. When the spool shifts to one
end of the valve block body, inlet pressure is
applied to one chamber and the other diaphragm
chamber exhausts. When the spool shifts to the
opposite end of the valve body, the pressure to
Lubricator
Filter/Regulater
Installation Guide
Fig. 1
the chambers is reversed. This alternating
movement of the spool inside the valve body is
controlled by a pilot air pressure signal held
against the diaphragm shaft, between seals in the
diaphragm shaft bushes. This signal is released,
triggering the movement of the spool, when pilot
holes in the diaphragm shaft align with the held
pilot signal, sending the signal to exhaust, which
in-turn causes a pressure imbalance around the
spool, sending it to the opposite end of the valve
body. This simultaneously sends inlet pressure
to the opposite chamber.
The chambers are connected by manifolds with a
suction and discharge ball valve for each
chamber, maintaining flow in one direction
through the pump.
INSTALLATION
The typical installation shown in FIG. 1 is only a
guide to selecting and installing system
components. Your installation will depend on
the type of fluid being pumped and your
application needs. To reduce the risk of serious
bodily injury and damage to property, never use
fluids in this pump which are not compatible
with the wetted components. Contact your local
distributor or the manufacturer for system design
assistance & compatibility if necessary.
Mount the pump in an upright position. Failure
to ensure an upright position may result in loss
of or poor priming characteristics. Ensure the
pump is securely mounted to avoid movement
and possible risk of bodily injury.
PRESSURE The pump delivers the same
pressure at the discharge outlet as the air
pressure applied at the air inlet (unless pump is
configured as a 2:1 ratio model).
NOTE: Pressure Regulator (H) should be
installed where air supply could exceed 125
psi.
SAFETY
Your BLAGDON PUMP is a high
performance unit capable of achieving
high outputs at high efficiencies. However, as
is common with pneumatic equipment, the
pump efficiencies is reliant upon the air being
clean, dry and filtered. Failure to comply with
these requirements may lead to loss of
performance and reduced component life and in
extreme cases, permanent damage to the pump.
To avoid leaks, ensure that all fluid connections
are tight. The use of PTFE thread tape correctly
applied should be used to ensure 100% leak
proof connections. Failure to ensure 100%
sealability of the suction connection could
adversely affect suction performance.
If you are pumping hazardous fluids, or
operating the pump in an enclosed area, it is
essential that the exhaust from the pump is
piped away to a safe location. When pumping
hazardous fluids the above instructions must be
adhered to in order to ensure safe operating
procedures. (Under certain operating
conditions the failure of internal components
can lead to the pumped fluid being exhausted
via the pump exhaust outlet).
WARNING
NEVER place your hands over or near the
pump suction inlet. Powerful suction could
cause serious bodily injury.
FLUSH THE PUMP This pump was
tested with water containing an oil-based rust
inhibitor. If this solution could contaminate or
react with the fluid you are pumping, flush the
pump thoroughly with a solvent/detergent to
clean internal components. The solvent/
detergent must be compatible with the pump
materials of construction. Care should be taken
to flush the pump each time it is disassembled
for maintenance or repair.
CAUTION All BLAGDON PUMPS are built
lubricated with a light oil during assembly and
need no further lubrication. If the use of oil
cannot be avoided, this will not present any
problems. A light SAE10 lubricating oil is
recommended. Other grades may cause the Air
Logic System to operate intermittently, thereby
causing a loss of output and failure to operate.
Other seals are available for “clean room”
conditions.
If the pump accelerates or is running too fast
due to a lack of fluid, then stop it immediately
by shutting off the air supply. A dry pump will
accelerate to a high speed causing wear to
elastomers.
If the fluid you are pumping tends to dry up or
set when it is not moving, then flush the pump
as often as necessary to prevent the fluid from
drying in the pump. Drain the pump thoroughly
before storing.
If feasible, invert pump to allow any fluid to
drain from the non-return valves.
HG-CF-880 Rev. Y - 17.09.12
Page 5
TROUBLE SHOOTING GUIDE
NOTE :- Check all solutions before dismantling the pump.
PROBLEM CAUSE SOLUTION
Pump will not start Air valve assembly malfunction/Seizure
Obstructed fluid line.
Obstructed diaphragm chamber.
Diaphragm failure causing fluid & excessive air to be
expelled through the exhaust.
Diaphragm seal failure.
Air valve system malfunction.
Air connected to exhaust.
Erratic flow Diaphragm failure on one side.
Valve ball not seating.
Suction leakage.
Diaphragm failure causing fluid & excessive air to be
expelled through the exhaust.
Diaphragm seal failure.
Air valve system malfunction.
Pump strokes but will not
discharge
Excessive suction lift.
Suction line leakage.
Valve ball not seating correctly or damaged.
Suction line or strainer clogged.
Diaphragm failure.
Fluid discharged from air
exhaust
Diaphragm Failure.
Loose frontplate.
Intermittent stroke rate Over lubrication
Diaphragm shaft seal failure.
Air valve system malfunction.
Valve ball not seating / partially obstructed.
Check carrier for freedom of movement. Clean, oil & replace.
Clean line or increase line size.
Remove obstruction.
Replace diaphragm.
Replace shaft seals.
Check all seals in valve chest assembly.
Re-connect to air inlet.
Replace diaphragm.
Check and remove obstruction.
Check and correct.
Replace diaphragm.
Replace shaft seals.
Check all seals in valve chest assembly.
Shorten suction line.
Check and correct.
Check and remove obstruction / replace.
Clear.
Replace diaphragm.
Replace diaphragm.
Re-Torque to manual specifications.
Shut-down pump. Remove air connection
into pump & introduce a small quantity of degreasing agent into air valve and replace
line. Run pump until clear.
Replace seals.
Check all seals in valve chest assembly.
Clear obstruction.
WARNING!
Read these safety warnings and
instructions in this manual
completely, before installation and
start-up of the pump. It is the
responsibility of the purchaser to retain this
manual for reference. Failure to comply with the
recommendations stated in this manual will
damage the pump, and void factory warranty.
WARNING!
Before doing any maintenance on
the pump, be certain all pressure
is completely vented from the
pump, suction, discharge, piping, and all other
openings and connections. Be certain the air
supply is locked out or made non-operational, so
that it cannot be started while work is being done
on the pump. Be certain that approved eye
protection and protective clothing are worn all
times in the vicinity of the pump. Failure to
follow these recommendations may result in
serious injury or death.
WARNING!
Airborne particles and loud noise
hazards. Wear ear and eye protec-
tion.
WARNING!
Before maintenance or repair,
shut off the com-pressed air line,
bleed the pressure, and disconnect
the air line from the pump. The discharge line
may be pressurized and must be bled of its
pressure.
WARNING!
Take action to prevent static
sparking. Fire or explosion can
result, especially when handling
flammable liquids. The pump, piping, valves,
containers or other miscellaneous equipment
must be grounded.
IMPORTANT!
This pump is pressurized
internally with air pressure during
operation. Always make certain
that all bolting is in good condition and that all of
the correct bolting is reinstalled during assembly.
WARNING!
When used for toxic or
aggressive fluids, the pump
should always be flushed clean
prior to disassembly.
WARNING!
In the event of diaphragm rupture,
pumped material may enter the air
charged into the atmosphere. If pumping a
product which is hazardous or toxic, the air
exhaust must be piped to an appropriate area for
safe disposition.
end of the pump, and be dis-
CAUTION!
Before pump operation, inspect
all gasketed fasteners for loose-
torque loose fasteners to prevent leakage. Follow
recommended torques stated in this manual.
ness caused by gasket creep. Re-
RECYCLING
Many components of
BLAGDON air operated double
recyclable materials. We encourage pump users
to recycle worn out parts and pumps whenever
possible, after any hazardous pumped fluids are
thoroughly flushed.
diaphragm pumps are made of
HG-CF-880 Rev. Y - 17.09.12
Page 6
IMPORTANT!
Read these instructions
completely, before
installation and start-up. It
is the responsibility of the purchaser to
retain this manual for reference.
Failure to comply with the
recommendations stated in this
manual will damage the pump, and
void factory warranty.
SERVICE
The following sections give a general
overview on how to service all models of
BLAGDON Diaphragm Pumps. For
details on individual part numbers,
quantities, materials, etc., please consult
the parts list supplied with the pump.
NOTE : Before commencing any
service or maintenance work on the
pump, ensure that the air supply has
been disconnected or isolated.
AIR VALVE SYSTEMS
PNEUMATIC TYPE Remove the 4
screws securing the valve block to the
valve chest, together with any associated
gaskets or seals.
Remove slide valve plate & slide valve
from the valve block assembly. Clean all
parts thoroughly and inspect for
excessive wear, replacing where
necessary.
The slide valve and valve plate contact
faces should be flat and free from
scratches. A light polishing on a flat
surface with a fine abrasive paper will
remove most scratches.
If excessive wear is suspected in the
valve block bore or valve carrier, remove
the valve block plugs and withdraw the
valve carrier. Check valve block plug orings for wear or attack & replace where
required.
Clean the valve carrier & valve block
bore with white spirits to remove any oil
films.
NOTE : The nominal diametrical
clearance between the valve carrier and
the valve block bore should be 0.05 -
0.09mm. A clearance in excess of this
will cause the valve system to run
erratically.
Apply a light grease to the valve block
plug O-rings when re-assembling into the
valve block bore. Any damage to the Oring may cause the valve system to
malfunction.
Re-assemble the valve block assembly &
re-torque in accordance to the settings
shown in the parts list.
In the event of a complete air-side
overhaul, the pump should be disassembled down to the centre section
assembly as described later in the “WetSide Overhaul” section.
With the valve block assembly
dismantled, remove the inner covers
where appropriate.
A careful note of the position of all
related seals and gaskets should be made
to facilitate re-assembly.
Remove diaphragm shaft bushes, where
appropriate, and check all seals and ‘O’
rings for wear or damage. If worn,
replace immediately.
NOTE:- The integrity of the diaphragm
shaft seals is essential for the correct
functioning of all pneumatically
actuated valve systems.
Check the diaphragm shaft for excessive
wear as this will result in premature seal
failure. Replace as required. Lubricate
all components and re-assemble as
detailed above, in reverse order. Ensure
the correct position of all components
detailed in all sectional assembly
drawings.
WET-SIDE OVERHAUL
REPLACING BALL VALVES
Remove discharge manifold from pump
assembly together with associated valve
balls, seats and ‘O’ rings.
NOTE :- The orientation of the valve
seat relative to the valve ball should be
noted as incorrect positioning may
result in a performance loss.
Turn pump through 180o and remove the
suction manifold. Clean and inspect the
components. Check for any wear or
damage and replace as required.
NOTE :- Ball or valve seat wear may
result in loss of performance and
suction lift.
Re-assemble the valve balls/seats and
ensure manifolds are adequately torqued
to the settings shown in the parts list.
REPLACING DIAPHRAGMS
Remove both suction and discharge
manifolds as detailed in the previous
section, removing all ball valves, seats
and ‘O’ rings.
Loosen and remove both outer covers
from the pump assembly. The
orientation of the covers should be noted
so as to facilitate re-assembly.
Holding one of the frontplates in a vice,
(‘soft jaws’ should be fitted), or with an
adjustable spanner, loosen and remove
the frontplate from the opposite end.
Remove the diaphragm, backplate and
bumpstop from diaphragm shaft.
Carefully withdraw the diaphragm shaft
from the centre section and hold the free
end in a vice, holding between the flats
machined on the end. Loosen and
remove the frontplate and remove the
diaphragm together with backplate and
bumpstop (where fitted).
NOTE :- Care should be taken with all
plastic, coated and hygienic pumps, so
that the surface of the frontplate is not
damaged.
Thoroughly clean all parts and check for
wear, damage, swelling, cracking,
delamination and chemical attack.
Replace components where required.
NOTE :- Rubber diaphragms should be
replaced if they are worn to such an
extent that the fabric re-enforcing is
evident on the surface of the diaphragm.
For pumps fitted with PTFE diaphragms,
a light coating of grease should be
applied to the back-up diaphragm prior to
re-assembly.
Before re-assembly, it is advisable to
check the condition of the diaphragm
shaft seal/’O’ rings for wear or attack. If
either is evident, it is recommended that
they be replaced.
Assemble the diaphragms onto the shaft
in a reverse sequence to their removal.
Care should be taken as to the orientation
of the diaphragm relative to the front and
back plates. All diaphragms have “AIR
SIDE” moulded onto one side. The
backplate must be fitted adjacent to the
AIR SIDE of the diaphragm.
HG-CF-880 Rev. Y - 17.09.12
Page 7
1
1
1
1
2
QTY
4
®
(ONE-PIECE)
QTY
DESCRIPTION
ELASTOMER TABLE
ELASTOMER TABLE
DESCRIPTION POLYPROPYLENE PVDF QTY
PART
NUMBER
38 06-097 VALVE BLOCK
39 06-004 SLIDE VALVE
40 06-003 SLIDE VALVE PLATE
41 06-059 PLATE SEAL
42 SEE TABLE BASE LEG
43 D358 SOCKET CAP SCREW M6 X 40
No.
REF
PARTS LIST - cont.
8
2
2
20
44
4
2
2
2
3 MANIFOLD 06-017 06-128 2
6 BALL STOP 06-099 06-124 2
8 VALVE SEAT (DISCHARGE) 06-171 06-172 2
18 VALVE SEAT (SUCTION) 06-098 06-125 2
28 OUTER COVER 06-100 06-129 2
29 FRONTPLATE 06-037 06-127 2
No.
REF
2
2
2
8
2
42 BASE LEG 06-035 06-126 2
8
2
2
12
DESCRIPTION HYTREL EPDM VITON PTFE QTY SANTOPRENE
5 O-RING G334 G333 G336 G256 4 -
14 DIAPHRAGM 06-010 06-070 06-060 06-063 + 06-147 2 06-147
No.
REF
2
1
1
2
2
DESCRIPTION PTFE VITON STAINLESS STEEL PTFE
7 VALVE BALL (DISCHARGE) 06-145 06-151 06-146 - 2
17 VALVE BALL (SUCTION) 06-108 06-109 06-110 - 2
No.
REF
2
6
2
2
14 DIAPHRAGM - - 06-174 2
- These items are available in a recommended spares kit. Please refer to your local stockist / distributor for details.
- These items are available in a recommended spares kit - ASK0604SS - Air side Kit.
Note! This kit covers both standard and Lube Free models. There is no “dry air” version available for 06 pumps. Santoprene is a registered trade name of Monsanto Corp.
2
2
2
2
4
1
2
2
6
DESCRIPTION QTY
PART
NUMBER
1 D266 SOCKET CAP SCREW M6 X 35
2 C048 WASHER M6
No.
REF
HG-CF-880 Rev. Y - 17.09.12
PARTS LIST
3 SEE TABLE MANIFOLD
4 06-053 MANIFOLD BAND
5 SEE TABLE O-RING
6 SEE TABLE BALL STOP
7 SEE TABLE VALVE BALL (DISCHARGE)
8 SEE TABLE VALVE SEAT (DISCHARGE)
9 06-034 SILENCER 1
10 06-170 GASKET
11 06-061 INNER COVER RING
12 06-036 INNER COVER
13 L502 SELF TAPPING SCREW
14 SEE TABLE DIAPHRAGM
15 B272 SQUARE NUT M6
16 D355 SOCKET CAP SCREW M6 X 30
17 SEE TABLE VALVE BALL (SUCTION)
18 SEE TABLE VALVE SEAT (SUCTION)
19 06-092 VALVE BLOCK STRAP
20 06-039 VALVE CHEST
21 06-002 PORT SEAL
22 06-132 DIAPHRAGM SHAFT 1
23 06-153 DIAPHRAGM SHAFT BUSH ‘B’ (INNER)
24 G279 O-RING
25 06-210 DIAPHRAGM SHAFT BUSH ‘A’ (OUTER)
26 06-209 LIP SEAL
27 G264 O-RING
28 SEE TABLE OUTER COVER
29 SEE TABLE FRONTPLATE
30 06-063 DIAPHRAGM - PTFE OVERLAY
31 06-147 DIAPHRAGM SUPPORT
32 06-009 BACKPLATE
33 D322 SOCKET CAP SCREW M4 X 10
34 06-005 VALVE CARRIER
35 G258 O-RING
36 06-040 VALVE BLOCK PLUG
Page 8
37 D492 SOCKET CAP SCREW M3 X 8
TORQUE SETTINGS
A - 1.7 Nm (15 lbs/in)
B - 1.0 Nm (10 lbs/in)
C - 1.7 Nm (15 lbs/in)
F - 4.5 Nm (40 lbs/in)
E - 1.7 Nm (15 lbs/in)
D - 2.2 Nm (20 lbs/in)
Sectional General Assembly :- B06 Non-Metallic Pump.
Refer to page 8 Parts List table for item Ref. Nos.
Valve Chest - inside centre
Lip Seal Positions
HG-CF-880 Rev. Y - 17.09.12
Inner bush :- seal lip faces
towards large diameter.
Large diameter to outside.
Outer bush - seal lips positioned back to back
Page 9
IDEX Pump Technologies (Ireland) Ltd.,
A Unit of IDEX Corporation,
R79, Shannon, Co Clare,
IRELAND.
TEL. : +353 61 471933
FAX. : +353 61 475046
Web Site : www.blagdonpump.com
E-Mail : sales@blagdonpump.com
HG-CF-880 Rev. Y - 17.09.12
Date : December 01 2009
Des Monaghan,
Production & Technical Manager
HG-CF-223 (REV 6)
Page 10
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