Blagdon Pump X50 User Manual

SERVICE & OPERATING MANUAL

AIR OPERATED DOUBLE DIAPHRAGM PUMP

B50 & X50

50 Series 2” Model

This pump is Atex approved for use

in potentially explosive atmospheres

Group II category 2

This Manual covers the following models :-
5005AA…. All Aluminium
5005CA…. Cast Iron / Aluminium
5005CC…. All Cast Iron
5005SA…. Stainless Steel / Aluminium
5005SC…. Stainless Steel / Cast Iron
5005SS…. All Stainless Steel

All Standard & Lube Free models, BSP & NPT
Flanged models :- ANSI 150, PN16 etc.
Private labelled models.
Atex Certified models.

NOTE! Refer to pump Typical Code matrix on page 3 to determine the full
Model No. of your pump.

Please read all warnings and instructions before using this product.

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.

A Unit of IDEX Corporation

IMPORTANT

II 2 GD c

HG-CF-1099 Rev. Q – 05.09.13 Page 1

Table of Contents

Contact Information 2
Temperature Limitations 3
Explanation of Pump Nomenclature 3
Dimensional Drawings 4
Performance Curve 5
Trouble Shooting 6
Technical Data 6
Principle of Pump Operation 7
Installation guide 7
Important warnings and Safety Information 8
Exhaust Safety Instructions 9
Atex models, Grounding the pump 9
Warranty 10
Service 10
Air Valve Overhaul 10
Wet-side Overhaul 10
B5005CC, PTFE Diaphragms, Torque Settings 11
Elastomer Table 11
Sectional Drawings 12
Parts List - Wet Side 13
High Temperature Specification 13
Parts List - Air Side 14
Atex Certified models 15
Flanges (ANSI 150, PN16 etc.) & Base Pads 15
Wet Side Kit structure & Spares Kits 16
Service / Maintenance Log 17
Recycling 17
Declaration of Conformity 18

Contact Information

Contact Phone / E-Mail / Fax No.

HG-CF-1099 Rev. Q – 05.09.13 Page 2

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]

Temperature Guide & Pump Code Matrix

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.

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 50. 05. A A. B B. N N S - LF

PREFIX

B : BLAGDON UK
N : BLAGDON USA
V : VERSA-MATIC
X : ATEX CERTIFIED

Operating Temperatures

Maximum Minimum Optimum

176oF

o

C

80

212oF

o

100
212oF

o

100
212oF

o

100
356oF

o

180

356oF

o

180
158oF

o

C

70

C

C

C

C

C

-18oF

o

-28

-11oF

o

-24

-4oF

o

-20

-10oF

o

-23
32oF

o

C

0

0oF

o

-18
32oF

o

C

0

C

C

C

C

C

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
50o to 140oF

o

to 60oC

10

SUFFIX - (WHERE APPLICABLE)

LF : LUBE FREE
F : FLANGED - ANSI 150
N : NPT THREADS
H : HYDROSTATIC TEST

(A THREE DIGIT NUMBER SUFFIX
DENOTES A SPECIAL DESIGN
i.e. 301 = OPPOSED SUCTION)

MODEL NO.

50 : 2”

DESIGN LEVEL

WETTED COMPONENTS

A : ALUMINIUM
C: CAST IRON
S : 316L STAINLESS STEEL

NON - WETTED COMPONENTS

A : ALUMINIUM
C : CAST IRON
S : 304 STAINLESS STEEL

VALVE TYPE

B : BALL
W : WEIGHTED BALL

SUCTION ORIENTATION

B : BOTTOM

VALVE SEATS

B : BUNA-N S : ST. STEEL
E : EPDM A : ALUMINIUM
N : NEOPRENE V : VITON
T : PTFE 

VALVE BALLS

B : BUNA-N T : PTFE
E : EPDM V : VITON
N : NEOPRENE S : ST. STEEL
D : DELRIN (ACETAL) 

DIAPHRAGMS

B : BUNA-N T : PTFE
E : EPDM V : VITON
H : POLYESTER (HYTREL)
N : NEOPRENE
P : POLYURETHANE 
R : SANTOPRENE
O : ONE-PIECE PTFE
X : PTFE/VITON (HIGH TEMP.)

(SEE PAGE 12 FOR DETAILS ON SPECIFYING
HIGH TEMPERATURE APPLICATIONS)

Exclusions :

 = Not available with ‘X’ prefix pumps.
 = Only available on Stainlees Steel wetted models.

HG-CF-1099 Rev. Q – 05.09.13 Page 3

GA Drawings

General Assembly :- B5005 Aluminium Pump, all dimensions +/- 2mm

General Assembly :- B5005 Stainless Steel Pump, all dimensions +/- 2mm

HG-CF-1099 Rev. Q – 05.09.13 Page 4

Performance Curve

HG-CF-1099 Rev. Q – 05.09.13 Page 5

B50 Metallic Pump Performance Curve, Performance based on water at ambient temperature

Trouble Shooting Guide & Technical Data

TROUBLE SHOOTING GUIDE

NOTE :- Check all solutions before dismantling the pump.

PROBLEM CAUSE SOLUTION

Pump will not start Air valve assembly malfunction/Seizure

Erratic flow Diaphragm failure on one side.

Pump strokes but will not
discharge

Fluid discharged from air
exhaust

Intermittent stroke rate Over lubrication

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.

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.

Excessive suction lift.
Suction line leakage.
Valve ball not seating correctly or damaged.
Suction line or strainer clogged.
Diaphragm failure.

Diaphragm Failure.
Loose frontplate.

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.

TECHNICAL DATA

FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT

2” BSP (F)
2” NPT (F)

MAX. WORKING

PRESSURE

8.6 Bar (125 psi) 3/4” BSP (F)

0 - 500 Litres/Minute

(0 - 110 Gallons/Minute)

AIR INLET TEMPERATURE LIMITS PUMP WEIGHTS :-

3/4” NPT (F)

6 MM
(1/4”)

Determined by Elastomers

(See page 3)

88 Meters

(289 ft)

For overall dimensions see page 4

HG-CF-1099 Rev. Q – 05.09.13 Page 6

PER STROKE

1.9 Litres

(0.42 UK Gallons)

AA :- 35 Kg CC :-70 Kg
CA :- 50 Kg SA :- 60 kg
SC :- 78 Kg SS :- 92 Kg