SERVICE & OPERATING MANUAL
AIR OPERATED DOUBLE DIAPHRAGM PUMP
B25 & X25
05 Metallic Series
This pump is Atex approved for use in potentially explosive atmospheres Group II category 2
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-1184 Rev. C, 16/11/12 |
Page 1 |
Service / Maintenance Log
Date |
Details |
Completed |
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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.
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Contact Information |
Contact |
Phone / Fax No. |
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HG-CF-1184 Rev. C, 16/11/12 |
Page 2 |
GA Drawing & Performance Curve
General Assembly :- B25 & X2505 Metallic pump, All dimensions +/- 2mm |
B2505 Metallic Pump performance curve, based on water at ambient temperature
HG-CF-1184 Rev. C, 16/11/12 |
Page 3 |
TECHNICAL DATA
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FLUID CONNECTIONS |
CAPACITY |
MAX SOLIDS |
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MAX DISCHARGE HEAD |
DISPLACEMENT/STROKE |
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1” BSP (F) |
0 - 180 Litres/Minute |
3 MM |
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88 Meters |
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0.475 Litres |
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(0 - 40 Gallons/Minute) |
(1/8”) |
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(289 ft) |
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(0.1 UK Gallons) |
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MAX. WORKING PRESSURE |
AIR INLET |
TEMPERATURE LIMITS |
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PUMP WEIGHTS :- |
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8.6 Bar (125 psi) |
3/8” BSP (F) |
Determined by Elastomers |
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AA :- 13.5 Kg |
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Operating Temperatures |
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Caution - Operating temperature limitations are as follows: |
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Materials |
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Maximum |
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Minimum |
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Optimum |
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Buna-n - General purpose, oil resistant. Shows good solvent, oil, water and hydraulic fluid resistance. Should not |
176oF |
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-18oF |
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50o to 140oF |
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be used with highly polar solvents like acetone and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons. |
80oC |
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-28oC |
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10o to 60oC |
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EPDM - Shows very good water and chemical resistance. Has poor resistance to oils and solvents, but is fair on |
212oF |
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-11oF |
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50o to 212oF |
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ketones and alcohols. |
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100oC |
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-24oC |
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10o to 100oC |
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Neoprene - All purpose. Resistant to vegetable oil. Generally not affected by moderate chemicals, fats greases |
212oF |
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-4oF |
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50o to 130oF |
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and many oils and solvents. Generally attacked by strong oxidising acids, ketones, esters, nitro hydro carbons and |
100oC |
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-20oC |
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10o to 54oC |
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chlorinated aromatic hydrocarbons. |
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Santoprene® - Injection moulded thermoplastic elastomer with no fabric layer. Long mechanical flex life. |
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212oF |
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-10oF |
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50o to 212oF |
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Excellent abrasion resistance. |
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100oC |
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-23oC |
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10o to 100oC |
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Virgin PTFE - Chemically inert, virtually impervious. Very few chemicals are known to react chemically with |
356oF |
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32oF |
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50o to 212oF |
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PTFE : molten alkali metals, turbulent liquid or gaseous fluorine and a few fluoro-chemicals such as chlorine |
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180oC |
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0oC |
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10o to 100oC |
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trifluoride or oxygen difluoride which readily liberate free fluorine at elevated temperatures. |
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Viton® - Shows good resistance to a wide range of oils and solvents : especially all alphatic, aromatic and |
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356oF |
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0oF |
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75o to 212oF |
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halogenated hydrocarbons, acids, animal and vegetable oils. |
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180oC |
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-18oC |
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24o to 100oC |
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Polypropylene - High strength, light weight, corrosion resistant polyolefin which easily withstands most |
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158oF |
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32oF |
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50o to 140oF |
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chemicals, with no known solvent at room temperature. |
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70oC |
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0oC |
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10o to 60oC |
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TYPICAL CODE = B25.05. A A. B B. N N S
MODEL
B25 : STANDARD
X25 : ATEX CAT. 2
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DESIGN LEVEL |
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VALVE SEATS |
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S : 316L STAINLESS STEEL |
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WETTED COMPONENTS |
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A : ALUMINIUM |
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S : 316L STAINLESS STEEL |
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C : CAST IRON |
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VALVE BALLS |
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NON - WETTED COMPONENTS |
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T : PTFE |
E : EPDM |
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A : ALUMINIUM |
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N : NEOPRENE |
V : VITON |
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B : BUNA-N |
S : ST. STEEL |
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D : ACETAL |
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VALVE TYPE |
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B : BALL |
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DIAPHRAGMS |
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W : WEIGHTED BALL |
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N : NEOPRENE |
V : VITON |
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H : POLYESTER (HYTREL) B : BUNA-N |
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R : SANTOPRENE® |
T : PTFE |
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SUCTION ORIENTATION |
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P : POLYURETHANE |
E : EPDM |
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B : BOTTOM |
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O : ONE-PIECE PTFE |
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IMPORTANT |
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This pump should be used in accordance with the requirements of the Safety, Health & Welfare at Work Act 2005. |
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All business conducted subject to IDEX Pump Technologies, Ireland. Terms and Conditions of Sale, available on request. |
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IDEX Pump Technologies (Ireland) Ltd., |
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A Unit of IDEX Corporation, |
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R79, Shannon, Co Clare, IRELAND. |
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TEL. : +353 61 471933 FAX. : +353 61 475046 |
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Web Site : www.blagdonpump.com |
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E-Mail : sales@blagdonpump.com |
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HG-CF-1184 Rev. C, 16/11/12 |
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Page 4 |
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