SERVICE & OPERATING MANUAL AIR OPERATED DOUBLE DIAPHRAGM PUMP B50 & X50 Full Flow High Pressure 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
Service / Maintenance Log Date Details Completed 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. Contact Information Contact HG-CF-1087 Rev. J – 03.03.14 Phone / Fax No.
GA Drawing & Performance Curve B50 / X50 General Assembly :- All dimensions +/- 3mm B50 & X50 Full Flow 2:1 Pump Performance Curve, based on water at ambient temperature HG-CF-1087 Rev. J – 03.03.
TECHNICAL DATA FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT/STROKE 2” BSP (F) 0 - 341 Liters/Minute (0 - 75 Gallons/Minute) 6 MM (1/4”) 163 Meters (536 ft) 1.9 Liters (0.42 UK Gallons) MAX. WORKING PRESSURE AIR INLET TEMPERATURE LIMITS 16 Bar (232 psi) 3/4” BSP (F) Determined by Elastomers PUMP WEIGHTS :AA :- 51.
PRINCIPLE OF PUMP OPERATION This ball valve type diaphragm pump is powered by 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 diaphragms, which are connected by a common shaft secured by plates to the centres of the diaphragms, to move in a reciprocating action.
Important Warnings and Safety Information IMPORTANT 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.
TROUBLE SHOOTING GUIDE NOTE :- Check all solutions before dismantling the pump. PROBLEM CAUSE Pump will not start SOLUTION 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 Check carrier for freedom of movement. Clean, oil & replace. Clean line or increase line size. Remove obstruction.
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.
EXHAUST SAFETY WHEN PUMPING HAZARDOUS LIQUIDS WARNING! 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. Flooded Suction Installation Submerged Installation Suction Lift Installation Exhaust Safety :When a diaphragm fails during operation, pumped liquid can enter and contaminate the air side of the pump.
HG-CF-1087 Rev. J – 03.03.14 PAGE 10 A041 C013 50-287 SEE TABLE SEE TABLE SEE TABLE 1B114 1B015 50-198 1B021 1B001 SEE TABLE SA10042 D028 C165 50-246 1B124 G130 1C021 D391 50-251 50-248 1B123 50-261 50-286 50-253 B027 A063 A496 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 PART No. REF No.
WETSIDE EXPLODED ASSEMBLY AIRSIDE EXPLODED ASSEMBLY HG-CF-1087 Rev. J – 03.03.
ELASTOMER TABLE REF No. DESCRIPTION BUNA-N NEOPRENE EPDM VITON PTFE QTY 4 VALVE BALL 1B010 1B056 1B052 1B055 1B053 4 4 VALVE BALL (WTD) 1B079 1B027 1B080 1B088 - 4 6 O-RING G029 G149 G031 G119 G111 4 12 DIAPHRAGM 1B004 1B001 1B002 1B003 SEE 11 & 12 2 ELASTOMER TABLE - cont’d REF No.
HG-CF-1087 Rev. J – 03.03.14 PAGE 13 Removal of Diaphragm Shaft :- TECHNICAL NOTES :- After first removing manifolds and air-hoses, remove both outer covers (26), followed by frontplates (13), diaphragms (12), backplates (10) and bumpstops (8). Remove air-chamber assy, by removing nuts & bolts as at (27) & (28). This allows access to locknuts (42) to remove air diaphragm, backplates & thrust washer (41), (40) & (39). Diaphragm Shaft can now be removed.
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 Date : December 01 2009 Des Monaghan, Production & Technical Manager HG-CF-223 (REV 6) HG-CF-1087 Rev. J – 03.03.
