Blagdon X25 User manual

HG-CF-1186 Rev. C, 20/04/15 Page 1
B25 & X25
05 Series
Metallic FDA Models
This pump is Atex approved for use
in potentially explosive atmospheres
Group II category 2
This pump is normally supplied with Tri-Clamp end connections
See Parts List for other options.
SERVICE & OPERATING MANUAL
AIR OPERATED DOUBLE DIAPHRAGM PUMP
Table of Contents
Service / Maintenance Log, Recycling 2
Dimensions 3
Performance Curve 3
Technical Data & Temperature limitations 4
Explanation of Pump Nomenclature 4
Principle of Pump Operation 5
Installation guide 5
Important Warnings & Safety Information 6
Troubleshooting 7
Grounding the Pump 7
Warranty 8
Service 8
Air Valve Overhaul 8
Wet-side Overhaul 8
Exhaust Safety 9
High Temperature Inst. 9
Parts List 10
Assembly Drawing 11
Declaration of Conformity 12 II 2 GD c

HG-CF-1186 Rev. C, 20/04/15 Page 2
Date Details Completed
Service / Maintenance Log
Contact Phone / Fax No.
Contact Information
RECYCLING
Many components of BLAGDON air operated double diaphragm pumps are made of recyclable materials. We encourage pump
users to recycle worn out parts and pumps whenever possible, after any hazardous pumped fluids are thoroughly flushed.

HG-CF-1186 Rev. C, 20/04/15 Page 3
B25 Metallic Pump performance curve,based on water at ambient temperature
General Assembly :- B25 & X2505 Metallic FDA pump, All dimensions +/- 2mm
GA Drawing & Performance Curve

HG-CF-1186 Rev. C, 20/04/15 Page 4
TECHNICAL DATA
FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT/STROKE
1” - 1”1/2 TRI-CLAMP SIZE
Other options available (RJT/DIN) 0 - 180 Litres/Minute (0 - 40 Gallons/Minute) 3 MM (1/8”) 88 Meters (289 ft) 0.475 Litres (0.1 UK Gallons)
MAX. WORKING PRESSURE AIR INLET TEMPERATURE LIMITS PUMP WEIGHTS :-
8.6 Bar (125 psi) 3/8” BSP (F) Determined by Elastomers SA :- 29.5 Kg
Caution - Operating temperature limitations are as follows: Operating Temperatures
Materials Maximum Minimum Optimum
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. 176oF
80oC -18oF -28oC 50oto 140oF 10oto 60oC
EPDM - Shows very good water and chemical resistance. Has poor resistance to oils and solvents, but is fair on
ketones and alcohols. 212oF
100oC -11oF -24oC 50oto 212oF 10oto 100oC
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.
212oF
100oC -4oF -20oC 50oto 130oF 10oto 54oC
Santoprene® - Injection moulded thermoplastic elastomer with no fabric layer. Long mechanical flex life.
Excellent abrasion resistance. 212oF
100oC -10oF -23oC 50oto 212oF 10oto 100oC
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.
356oF
180oC 32oF 0oC 50oto 212oF 10oto 100oC
Viton® - Shows good resistance to a wide range of oils and solvents : especially all alphatic, aromatic and
halogenated hydrocarbons, acids, animal and vegetable oils. 356oF
180oC 0oF -18oC 75oto 212oF 24oto 100oC
TYPICAL CODE = B25.05.S A. B B. E T S - P
DESIGN LEVEL
WETTED COMPONENTS
S : 316L STAINLESS STEEL
NON - WETTED COMPONENTS
A : ALUMINIUM
VALVE TYPE
B : BALL
SUCTION ORIENTATION
B : BOTTOM
VALVE BALLS
T : PTFE
S : ST. STEEL
VALVE SEATS
S : 316L STAINLESS STEEL
DIAPHRAGMS
T : PTFE
E : EPDM F.G.
O : ONE-PIECE PTFE
MODEL
B25 : STANDARD
X25 : ATEX CAT. 2
SUFFIX
P : BSP CONNECTIONS
P1: TRI-CLAMP CONNECTIONS
ELECTRO - POLISHED
IDEX Pump Technologies (Ireland) Ltd.,
A Unit of IDEX Corporation,
R79, Shannon, Co Clare, IRELAND.
TEL. : [phone] FAX. : [phone]
Web Site : www.blagdonpump.com
E-Mail : [e-mail]
IMPORTANT
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.

HG-CF-1186 Rev. C, 20/04/15 Page 5
AIR
Exhaust
1
32
4
Flexible
Connection
Pipe Connection
(Style Optional)
Gauge Shut-off
Valve
Drain Port
DISCHARGE
Pulsation
Dampener
Regulator/Lubricator
Air Shut-Off
Valve
Air Dryer
INLET
Air Inlet
Air Exhaust
Pipe Connection
(Style Optional)
Air
Gauge
Shut-off
Valve
Drain Port
SUCTION
Filter
Connection
Flexible
Installation Guide
Fig. 1
Available from
Blagdon Pump :-
1. Pulsation Dampener
2. Filter/Regulator
3. Lubricator
4. Air Dryer
CAUTION !
The air exhaust should be piped
to an area for safe disposition of
the product being pumped, in the
event of diaphragm failure.
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
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 grease during assembly and
need no further lubrication. If the use of oil
cannot be avoided, this will not present any
problems. A light No. 2 class lithium grease 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-1186 Rev. C, 20/04/15 Page 6
Before pump operation, inspect all gasketed fasteners for looseness caused by gasket creep. Re-torque loose fasteners to prevent
leakage. Follow recommended torques stated in this manual. In cases of excess vibration, Blagdon recommend fitting a Pulsation
Dampener to remove effects of pulse actions from pump operation. Flexible connections can be used, but must be kept to a minimum
length necessary to avoid sharp flexing or straining movements.
CAUTION!
When used for toxic or aggressive fluids, the pump should always be flushed clean prior to disassembly. User must ensure chemical
compatibility, and any pressure / temperature limits are not exceeded. These instructions include all the information for relevant
diaphragm temperature limits. Pump temperature range can also be found on data-plate attached to the pump.
If pump is not used for more than 5 days, care must be taken when restarting. If in any doubt, remove pump from line and flush with a
suitable cleaner. Solidified deposits within the pump may cause damage to the diaphragms.
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. This manual must be kept with, and supplied
with the pump at all times. Failure to comply with the recommendations stated in this manual will damage the pump,
and void factory warranty. These instructions are available if required, in the language or languages of the country or
countries in which the equipment is used. Please refer to the manufacturer for details.
IMPORTANT
Important Warnings and Safety Information
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. End-user must ensure correct fitting of Inlet / Outlet connections. Crossed
threads or over tightening of connections will result in leaks. Quick action/release connections are not recommended. If their use is
unavoidable, the levers must be locked to avoid them being forced apart in a hazardous manner.
IMPORTANT!
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 at all times in the vicinity of
the pump. Failure to follow these recommendations may result in serious injury or death.
WARNING!
Before maintenance or repair, shut off the compressed air line, bleed the pressure, and disconnect the air line from the pump. The dis-
charge line may be pressurized and must be bled of its pressure. End-user must ensure correct regulation of air supply pressure, as any
increase in air pressure results in a similar increase in product pressure if stalled-out.
WARNING!
Airborne particles and loud noise hazards. Wear ear and eye protection.
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. Refer to exhaust safety instructions on page 9.
WARNING!

HG-CF-1186 Rev. C, 20/04/15 Page 7
TROUBLE SHOOTING GUIDE
NOTE :- Check all solutions before dismantling the pump.
PROBLEM CAUSE SOLUTION
Pump will not start Air valve assembly malfunction/Siezure
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.
Check carrier for freedom of movement. -
Clean, re-grease & 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.
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.
Replace diaphragm.
Check and remove obstruction.
Check and correct.
Replace diaphragm.
Replace shaft seals.
Check all seals in valve chest assembly.
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.
Shorten suction line.
Check and correct.
Check and remove obstruction / replace.
Clear.
Replace diaphragm.
Fluid discharged from air
exhaust Diaphragm Failure. Loose frontplate. Replace diaphragm. Re-Torque to manual specifications.
Intermittent stroke rate Over lubrication
Diaphragm shaft seal failure.
Air valve system malfunction.
Valve ball not seating / partially obstructed.
Shut-down pump. Remove air connection
into pump & introduce a small quantity of de-
greasing agent into air valve and replace
line. Run pump until clear.
Replace seals.
Check all seals in valve chest assembly.
Clear obstruction.
The Atex approved units are supplied with a natural earth ground
cable. This cable is 2 meters in length and permanently connected
through a nut and bolt at the inner cover casting. The other end is free
to connect to the nearest available suitable point to provide a natural
earth ground. This must be done to reduce the risk of electro-static
sparking.
Grounding the pump :-
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.
WARNING!
ATEX Certified units :- X2505AA.. These models are certified to :-
Non-electrical equipment for potentially explosive atmospheres : EN13463-1 : 2001, ‘c’ - Internal control of production.
II 2 GD c
ADDITIONAL PARTS FOR ATEX CAT. 2 PUMPS
REF
No. PART NUMBER QTY
38 SA10288 GROUNDING LEAD 1
39 SP467 ATEX I/D TAG 1
DESCRIPTION
40 SP473 TIE-LOK TIE 1

HG-CF-1186 Rev. C, 20/04/15 Page 8
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.
IMPORTANT!
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 o-rings 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
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 O-ring 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 dis-
assembled down to the centre
section assembly as described later
in the “Wet-Side 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 180oand 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-1186 Rev. C, 20/04/15 Page 9
EXHAUST SAFETY WHEN PUMPING HAZARDOUS LIQUIDS
Suction Lift Installation
Flooded Suction Installation
Submerged Installation
Exhaust Safety :-
When a diaphragm fails during operation, pumped liquid can enter and contaminate the air side of the pump. If diaphragm failure is not
severe, i.e. a small split or hole, then the pump can continue to run, with air being forced into the product being pumped. If however the
failure is more serious, then the pump may stop, with fluid or fumes being expelled through the exhaust. Under these conditions it is
recommended that the exhaust is piped away to a safe area. In standard suction lift conditions this can simply be done by piping from the
exhaust connection to a safe area. Multiple installations can be piped to a common connection, then to a safe area. In flooded suction
conditions the exhaust must be taken to a point higher than the fluid level to prevent any siphoning away. In submerged conditions ensure
exhaust is piped away above fluid level.
In all conditions ensure exhaust outlet is not expelling across a non-conductive surface. The exhaust must not be placed less than 100mm
from any non-conductive surface, as this may generate a propagating brush discharge resulting in a possible ignition source.
In the event of diaphragm rupture, pumped material may enter the air end of the pump, and be discharged 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.
WARNING!
In situations where the temperature of the fluid to be pumped is likely to exceed 100°C, a high temperature pump
code must be specified. This is signified using an ‘X’ in the last part of the pump code as shown.
“XTS” in place of “TTS”.
This indicates the following specification amendments :-
All seals and o-rings will be changed from Buna-N to Viton and back-up diaphragms and any bump-stops will be
changed to Viton.
See table below for parts effected :- (refer to main table for quantities / pump)
These items are available in recommended spares kit :- ASK2505HT
HIGH TEMPERATURE SPECIFICATION
REF. NO 23 25 26 27 31
MATERIAL
DESCRIPTION
DIA. SHAFT
SEAL
O-RING
O-RING O-RING SUPPORT DIAPHRAGM
VITON G536 G508 G533 G509 1A039
24
DIAPHRAGM
SHAFT BUSH
40-194
HIGH TEMPERATURE INSTRUCTIONS

HG-CF-1186 Rev. C, 20/04/15 Page 10
PARTS LIST - cont.
PUMPS FITTED WITH PTFE DIAPHRAGMS
REF
No. PART
NUMBER QTY
30 1A071 DIAPHRAGM - (PTFE) 2 31 1A089 DIAPHRAGM - (BACK-UP) 2
DESCRIPTION
ELASTOMER TABLE
REF
No. DESCRIPTION F.G.
EPDM ONE-PIECE
PTFE ST.
STEEL QTY
4O-RING - (VALVE SEAT) - G060 --- -8
10 VALVE BALL - - --- 1A197 4 10 VALVE BALL - (WEIGHTED) - ---- -4 31 DIAPHRAGM - 1A382 --1A348 -2
ELASTOMER TABLE - cont.
REF
No. DESCRIPTION PTFE QTY
4 O-RING - (VALVE SEAT) G058 - - - - 8
10 VALVE BALL 1A002 - - - - 4 10 VALVE BALL - (WEIGHTED) - - - - - 4 31 DIAPHRAGM SEE TABLE - - - - 2
- These items are available in a recommended wet side spares kit. Please refer to your local stockist / distributor for details. - These items are available in a recommended spares kit - ASK2505 - Air side Kit - (All models) - All models are Lube Free as standard, -LF options are only required for very dry air, or “clean room” applications. - These items are available as a sub-assembly spare - SA10585 - Valve Block Assembly. Santoprene is a registered tradename of Monsanto Corp. NOTE! For additional Atex parts see page 7
PARTS LIST
PART NUMBER
WETTED COMPONENTS
Ref No. Cast Iron Stainless
Steel Aluminium
/ Common Atex
Cat. 2 Description Qty
1 A040 A005 BOLT - M8 x 35   8 2 C044 C013 WASHER - M8   8 3 SEE TABLE DISCHARGE MANIFOLD   1 4 SEE TABLE O-RING  8 5 40-047 40-240 SILENCER   1 6 1A383 VALVE SEAT   4 7 1A353 OUTER COVER   2 8 A035 A006 BOLT - M8 x 40   16 9 B506 B505 NUT - SERRATED M8   24
10 SEE TABLE VALVE BALL  4 11 SEE TABLE SUCTION MANIFOLD   1 12 40-196 VALVE CHEST   1 13 40-204 GASKET   1 14 40-005 VALVE PLATE  1 15 40-004 SLIDE VALVE  1 16 40-264 VALVE BLOCK  1 17 D391 SKT. CAP SCREW - M5 x 14  4 18 40-266 VALVE BLOCK PLUG  2 19 G512 O-RING   2 20 40-192 VALVE CARRIER  1 21 D267 D337 SKT. CAP SCREW - M8 x 40   4 22 C173 C165 SPRING WASHER - M8   4 23 25-091 DIA. SHAFT SEAL (SEE NOTE )  6 24 25-089 DIAPHRAGM SHAFT BUSH   2 25 G189 O-RING  2 26 G245 O-RING  2 27 G367 O-RING  2 28 25-160 DIAPHRAGM SHAFT   1 29 1A345 FRONTPLATE ASSEMBLY   2 30 SEE PUMPS FITTED WITH PTFE ABOVE ! 31 SEE TABLE DIAPHRAGM  2 32 1A259 1A007 BACKPLATE   2 33 D310 D028 SKT. CAP SCREW - M8 x 25   8 34 25-225 INNER COVER   2 35 G242 O-RING  2 36 G243 O-RING  2 37 G339 O-RING  8
HEAVY DUTY OPTION - 1A355
SUCTION & DISCHARGE MANIFOLD OPTIONS (POLISHED)
REF
No. DESCRIPTION END CONNECTION QTY
TRI-CLAMP RJT DIN
3 DISCHARGE MANIFOLD SA10536 TBA TBA 1
11 SUCTION MANIFOLD SA10535 TBA TBA 1
BSP
25-227 25-226

HG-CF-1186 Rev. C, 20/04/15 Page 11
Exploded Assembly :- B2505 Metallic Pump Refer to page 10 Parts List table for item Ref. Nos.
Outer Seal - Lips face outwards
Inner Seals - Lips face in towards holes.
Lip Seal Positions
24 23
NOTE! MANIFOLDS SHOWN AS STANDARD BSP FOR CLARITY.
A - 42 - 47 Nm (30 - 35 lbs/ft B - 13.5 - 16 Nm (10 - 12 lbs/ft
C - 27 Nm (20 lbs/ft) D - 14.5 - 15 Nm (10 - 11 lbs/ft)
TORQUE SETTINGS

HG-CF-1186 Rev. C, 20/04/15 Page 12
Des Monaghan,
Production & Technical Manager
HG-CF-223 (REV 6)
IDEX Pump Technologies (Ireland) Ltd.,
A Unit of IDEX Corporation,
R79, Shannon, Co Clare,
IRELAND.
TEL. : [phone]
FAX. : [phone]
Web Site : www.blagdonpump.com
E-Mail : [e-mail]
Date : December 01 2009