Page 1
DATA SHEET, SERVICE & OPERATING MANUAL
DATA SHEET, SERVICE & OPERATING MANUAL
DATA SHEET, SERVICE & OPERATING MANUALDATA SHEET, SERVICE & OPERATING MANUAL
AIR OPERATED
AIR OPERATED
AIR OPERATED AIR OPERATED
DOUBLE DIAPHRAGM PUMP
DOUBLE DIAPHRAGM PUMP
DOUBLE DIAPHRAGM PUMPDOUBLE DIAPHRAGM PUMP
Full Flow
Full Flow
Full FlowFull Flow
High Pressure Series
High Pressure Series
High Pressure SeriesHigh Pressure Series
Table of Contents
Performance Curve 1
Dimensions 1
Engineering Data & Temperature limitations 2
Explanation of Pump Nomenclature 2
Principle of Pump Operation 3
Installation guide 3
Troubleshooting 4
Recycling 4
Important Safety Information 4
Warranty 5
Service 5
Air Valve Overhaul 5
Wet-side Overhaul 5
Parts List 6
Assembly Drawing 7
Technical Notes 8
Technical Notes 9
Service / Maintenance Log 10
HG-CF-998 Rev. D - 03/27/03
Page 2
DATA SHEET, SERVICE & OPERATIN G MANUAL
DATA SHEET, SERVICE & OPERATIN G MANUAL
DATA SHEET, SERVICE & OPERATIN G MANUALDATA SHEET, SERVICE & OPERATIN G MANUAL
N25
N25
N25N25
AIR OPERATED
AIR OPERATED
AIR OPERATED AIR OPERATED
DOUBLE DIAPHRAGM PUMP
DOUBLE DIAPHRAGM PUMP
DOUBLE DIAPHRAGM PUMPDOUBLE DIAPHRAGM PUMP
Full Flow High Pressure Series
Full Flow High Pressure Series
Full Flow High Pressure SeriesFull Flow High Pressure Series
N25 Full Flow High Pressure Pump
Performance based on water at ambient temperature
All business conducted subject to Blagdon Pump. Terms and Conditions of Sale, available on request.
BLAGDON PUMP
BLAGDON PUMP
BLAGDON PUMPBLAGDON PUMP
A Unit of IDEX Corporation
HG-CF-998 Rev. D - 03/27/03
Performance Curve
IMPORTANT
6017 ENTERPRISE DRIVE, EXPORT,
PENNSYLVANIA 15632-8969, USA.
TEL. : (1) 724-327-7867 FAX. : (1) 724-733-4786
Web Site : www.blagdonpump.com
E-Mail : sales@blagdonpump.com
DISTRIBUTOR
Page 1
Page 3
FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT/STROKE
1” NPT (F) 0 - 33 US Gall ons / Mi nut e
(0 - 125 Liters/Minute)
1/8”
(3 mm)
536 ft
(163 Meters)
0.13 US Gallons
(0.475 Liters)
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. Hot water or aqueous solutions(over 700F) will attack
Viton®.
Polypropylene
Maximum Minimum Optimum
190oF
212oF
100
170oF
212oF
100
212oF
100
212oF
100
150oF
Operating Temperatures
o
C
88
o
C
o
C
77
o
C
o
C
o
C
o
C
65
-10oF
o
C
-23
-10oF
o
C
-23
-10oF
o
C
-23
-10oF
o
C
-23
-35oF
o
C
-37
+32oF
o
C
0
-40oF
o
C
-40
50o to 140oF
o
to 60oC
10
50o to 212oF
o
to 100oC
10
50o to 130oF
o
to 54oC
10
50o to 212oF
o
to 100oC
10
50o to 212oF
o
to 100oC
10
75o to 212oF
o
to 100oC
24
TYPICAL CODE = N25. 01. A A. B 3. N N S
MODEL - N25
VALVE SEATS
DESIGN LEVEL
S : STAINLESS STEEL
WETTED COMPONENTS
A : ALUMINUM
S : STAINLESS STEEL
CHECK VALVES
NON - WETTED COMPONENTS
A : ALUMINUM
T : PTFE
N : NEOPRENE
CHECK VALVE
B : BALL
W : WEIGHTED BALL
DIAPHRAGMS
T : PTFE
N : NEOPRENE
MODEL DESIGNATION
TECHNICAL DATA
METALLIC SERIES - FULL FLOW 2:1 N25
Maximum Delivery: 33 gpm Installation: Surface mounted
Max. Working Pressure: 116 psi Accessories Included: Exhaust air Silencer
Max. Solid Particle Size: 1/4” Shipping Weights:
Air Inlet: 3/8” NPT (F) Aluminum 56 lb
Temperature Limits: Determined by Elastomers Stainless Steel / Aluminum 76 lb
Suction Lift (Dry): 20’ Shipping Dimensions: 18” x 19” x 12”1/4
Suction Lift (Wet): 25’ Fluid Inlet/Outlet: 1” NPT (F)
HG-CF-998 Rev. D - 03/27/03
Page 2
Page 4
PRINCIPLE OF PUMP
OPERATION
This ball type c heck valve p ump is powered b y
compressed air and is a 2:1 ratio design. The
inner side of one diaphragm chamber is alternately pressurised while simultaneously exhausting the other inner chamber. This causes
the diaphra gms, which a re connected b y a common rod secured by plates to the centers 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 app lied over the entir e 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
500 feet (152 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
distibuti on valve. When the spool sh ifts to one
end of the valve block body, inlet pressure is
applied to one chamber and the other diaphragm
chamber exha usts. When th e spool shift s to the
opposite end of the valve body, the pressure to
the chambers is reversed. This alternating move-
Installation Guide
Fig. 1
ment of the spool inside the valve body is controlled by a pilot air pressure signal held against
the diaphragm connecting rod, between seals in
the diaphragm shaft bushes. This signal is released, triggering the movement of the spool,
when pilot holes in the diaphragm connecting
rod 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 en d of the valve b ody. This si mutaneously sends inlet pressure to the opposite
chamber.
The chambers are connected with manifolds
with a suction and discharge check valve for
each chamber, maintaining flow in one direction
through the pump. The 2:1 ratio discharge pressure is generated by simultaneously delivering
air inlet pressure to alternate sides of a central
air diaphragm, the chambers either side of this
central diaphragm are pressurised and exhausted
in conjunction wi th the main diaphragm chambers.
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 upri ght position. Failur e
to ensure an upright pos ition may result in loss
of or poor priming ch aracteristics. Ensure the
pump is securely moun ted to avoid movement
and possible risk of bodily injury.
PRESSURE The pump delivers double the
pressure at the discharge outlet as the air
pressure applied at the air inlet.
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 output s at high efficien cies. However, as
is common with pneumatic equipment, the
pump efficienc ies 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 co rrectly
applied should be used to ensure 100%
leakproof 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 exh aust 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 thi s solution could c ontaminate 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 con struct ion. Ca re shou ld b e taken
to flush the pump each time it is disassembled
for maintenance or repair.
CAUTION Ensure that only the
recommended grade of lubricating oil is used.
BLAGDON PUMPS require an SAE 10
lubricating oi l. Other grades of oil may ca use
the Air Logic Syst em to operate intermi ttently,
thereby causin g a loss of output and failure to
operate.
If the pump accelerates or is running too fast
due to a lack of fluid, then stop it immediately
by shutting off the air supp ly. 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 no t moving, then flush th e 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 no n- r eturn valves
.
HG-CF-998 Rev. D - 03/27/03
Page 3
Page 5
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.
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.
Intermitten t str oke 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
and start-up of the pump. It is t he 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.
completely, before installation
WARNING!
Before doing any maintenance
on the pump, be certain all
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.
pressure is completely vented
WARNING!
Airbo rne part icles a nd loud noise
hazards. Wear ear and eye protection.
WARNING!
Before maintenance or repair,
shut off the com-pressed air line,
nect the air line from the pump. The discharge
line may be pressurized and must be bled of its
pressure.
bleed the pressure, and discon-
WARNING!
Take action to prevent static
sparking. Fire or explosion can
flammable liquids. The pump, piping, valves,
containers or other miscellaneous equipment
must be grounded.
result, especially when handling
IMPORTANT!
This pump is pressurized
internally with air pressure
certain that all bolting is in good condition and
that all of the correct bolting is reinsta lled dur ing
assembly.
during operation. Always make
WARNING!
When used for toxic or
aggressive fluids, the pump
prior to disassembly.
should always be flushed clean
WARNING!
In the event of diaphragm rupture, pump ed materia l may enter
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.
the air end of the pump, and be
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 KREMLIN
air operated double diaphragm
materials. We encourage pump users to recycle
worn out parts and pumps whenever possible,
after any hazardous pumped fluids are
thoroughly flushed.
pumps are made of recyclable
HG-CF-998 Rev. D - 03/27/03
Page 4
Page 6
IMPORTANT!
Read these instructions
completely, before
is the responsibility of the purchaser t o
retain this manual for reference.
Failure to comply with the
recommendations stated in this
manual will damage the pump, and
void factory warranty.
installation and start-up. It
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 o r isolated.
AIR VALVE SYSTEMS
PNEUMATIC TYPE Remove the 4
screws securing the valve block to the
valve chest, together with an y associated
gaskets or seals.
Remove slide valve plate & slide valve
from the valve block ass embly. Clean al l
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 th e valve carrier and
the valve block block bore should be
0.002” - 0.0035”. A cl earance 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 seal s and ‘O’
rings for wear or damage. If worn,
replace immediately.
NOTE:- The integrity of the diaphr agm
shaft seals is essential for the correct
functioning of all pneumatically
actuated valve systems.
Check the diaphragm shaft for e xcessive
wear as this will result in premature seal
failure. Replace as required. Lubri cate
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 val ve
seat relative to the valve ball should be
noted as incorrect positioning may
result in a performance loss.
Turn pump th rough 180
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 adequ ately 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
orientatio n of the covers should be noted
o
and remove the
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, holdin g 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 part s and check for
wear, damage, swelling, cracking,
delamination and chemical attac k.
Replace components where required.
NOTE :- R ubber 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” molded onto one side. The
backplate must be fitted adjacent to the
AIR SIDE of the diaphragm.
HG-CF-998 Rev. D - 03/27/03
Page 5
Page 7
PARTS LIST
HG-CF-998 Rev. D - 03/27/03
REF
No.
Page 6
PART NUMBER QTY
DESCRIPTION
ALUMINIUM ST. STEEL COMMON
1 40-225 BASE LEG
2 1B034 CAP - BASE LEG
3 D490 SKT CAP SCREW M8 x 16
4 25-106 25-108 SUCTION MANIFOLD
5 SEE TABLE O-RING
6 SEE TABLE VALVE SEAT
7 SEE TABLE VALVE BALL
8 25-084 25-073 OUTER COVER
9 25-094 BUMPSTOP
10 SEE TABLE DIAPHRAGM - FLUID
11 25-086 INNER COVER - FLUID SIDE LH
12 25-107 25-109 DISCHARGE MANIFOLD
13 G242 O-RING
14 D216 C’SUNK SKT CAP SCREW M8 x 20
15 25-110 INNER COVER - AIR CHAMBER LH
16 25-092 DIAPHRAGM - AIR CHAMBER
17 25-111 INNER COVER - AIR CHAMBER RH
18 40-113 VALVE CHEST
19 40-046 ELBOW
20 25-085 INNER COVER - FLUID SIDE RH
21 25-080 SPACER
22 25-083 THRUST WASHER
23 25-104 AIR HOSE - LH
24 25-102 BACKPLATE - AIR CHAMBER
25 25-082 LOCKING PLATE
26 25-105 AIR HOSE - RH
27 25-103 SWIVEL ELBOW ADAPTOR
28 D222 SKT CAP SCREW M8 x 30
29 C165 SPRING WASHER M8
30 D114 SKT CAP SCREW M8 x 35
31 C013 WASHER M8
32 A005 HEX. HD. BOLT M8 x 35
33 B003 NUT M8
34 SA10104 FRONTPLATE ASSY.
35 1A007 BACKPLATE
36 1A009 BUMPSTOP
37 40-047 SILENCER
38 G339 O-RING
16
12
48
16
24
PARTS LIST - cont.
REF
No.
2
4
4
1
4
4
4
2
1
2
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
4
8
8
2
2
1
1
8
ALUMINIUM ST. STEEL COMMON
39 D337 SKT CAP SCREW M8 x 40
40 G243 O-RING
41 25-081 DIAPHRAGM SHAFT
42 50-206 SHAFT SEAL
43 25-090 SPACER BUSH
44 G373 O-RING
45 G189 O-RING
46 25-089 SHAFT BUSH
47 25-091 SHAFT SEAL
48 G245 O-RING
49 G367 O-RING
50 40-204 GASKET
51 40-005 VALVE PLATE
52 40-004 SLIDE VALVE
53 H501 CIRCLIP
54 40-207 VALVE BLOCK PLUG
55 G512 O-RING
56 40-192 VALVE CARRIER
57 40-218 VALVE BLOCK
REF DESCRIPTION BUNA-N EPDM VITON NEOPRENE POLYESTER QTY
10 DIAPHRAGM 25-014 25-012 25-013 25-023 25-015 2
7 VALVE BALL 1A049 1A080 1A081 1A079 - 4
7 VALVE BALL - WEIGHTED 1A072 1A092 1A093 1A091 - 4
6 VALVE SEAT 25-011 25-009 25-010 25-029 - 4
5 O-RING G068 G069 G070 G067 - 4
REF DESCRIPTION PTFE ST.STEEL QTY
10 DIAPHRAGM+SUPPORT 25-016+25-014 - 2
7 VALVE BALL 1A002 1A197 4
6 VALVE SEAT 25-097 4 5 O-RING G431 - 4
- 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 - SA10459 - Air side Kit, including Seal Guide (see Technical Notes)
Seal Guide can be ordered separately if required, Note part No. 25-114
- These items are available as Sub-Assy spare :- SA10463
Santoprene is a registered tradename of Monsanto Corp.
PART NUMBER QTY
DESCRIPTION
4
2
1
2
1
1
2
2
6
2
2
1
1
1
2
2
2
1
1
ELASTOMER TABLE
SANTOPRENE®
25-045
-
-
-
Page 8
HG-CF-998 Rev. D - 03/27/03
Page 7
Sectional General Assembly :- N25 Full Flow 2:1 Metallic Pump
Refer to page 6 : Parts List table for item Ref. Nos.
Page 9
HG-CF-998 Rev. D - 03/27/03
TECHNICAL NOTES :-
Removal of Diaphragm Shaft :-
After first removing manifolds and air-hoses, remove both outer covers (8), followed by frontplates (34), fluid
diaphragms (10), backplates (35) and bumpstops (9 & 36). Separate Spacer/Covers Assy. from Valve Chest
Assy. by removin g 8 of f M8 x 35 bolts a nd s lidin g eit her ha lve f rom s haft. Diap hra gm Shaft c an no w be r em oved
together with air- chamber diaphragm and l ocking p late etc. Assem bly is re verse of rem oval, af ter first f itting seal
guide supplied in a ir side kit SA10459 into en d of diaphragm shaf t as shown above before sliding valve chest
centre over shaft. T his will allo w shaft to p ass thr o’ centr e withou t dam aging s eals. If air- cham ber diaphr agm has
been removed from shaft apply a small amount of Loctite grade 242 to locking plate (25) prior to refitting.
Page 8
Page 10
TECHNICAL NOTES :-
Spacer Cover on
left.
Valve Block on right
Air Hose connections :-
NOTES :-
On assembly, ensure these arrows are in-line on items 15 & 17. Air Hoses
(items 23 & 26) are connected as shown, air chamber inner cover L.H. (11)
connects to fluid cham ber inner cover L.H. (17) and air cham ber inner cover
(15) connects to fluid cha mber inner cover (20) when looking fr om the Valve
Block side of pump.
HG-CF-998 Rev. D - 03/27/03
Page 9
Page 11
Service / Maintenance Log
Date Details Completed
Contact Phone / Fax No.
BLAGDON PUMP
BLAGDON PUMP
BLAGDON PUMPBLAGDON PUMP
HG-CF-998 Rev. D - 03/27/03
A Unit of IDEX Corporation
Contact Information
6017 ENTERPRISE DRIVE, EXPORT,
PENNSYLVANIA 15632-8969, USA.
TEL. : (1) 724-327-7867 FAX. : (1) 724-733-4786
Web Site : www.blagdonpump.com
E-Mail : sales@blagdonpump.com
Page 10
Page 12
HG-CF-998 Rev. D - 03/27/03
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