SERVICE & OPERATING MANUAL AIR OPERATED DOUBLE DIAPHRAGM PUMP B25 & X25 05 Metallic Series All Stainless Steel 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
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-1196-A, 12/02/10 Phone / Fax No.
GA Drawing & Performance Curve General Assembly :- B25 & X2505 All Stainless Steel pump, All dimensions +/- 2mm B2505 Metallic Pump performance curve, based on water at ambient temperature HG-CF-1196-A, 12/02/10 Page 3
TECHNICAL DATA FLUID CONNECTIONS CAPACITY MAX SOLIDS MAX DISCHARGE HEAD DISPLACEMENT/STROKE 1” BSP (F) 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 8.6 Bar (125 psi) 3/8” BSP (F) Determined by Elastomers PUMP WEIGHTS :SS :- 29.5 Kg Caution - Operating temperature limitations are as follows: Operating Temperatures Materials Maximum Buna-n - General purpose, oil resistant.
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.
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, re-grease & replace. Clean line or increase line size.
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-1196-A, 12/02/10 Page 10 A005 C004 25-140 SEE TABLE 40-047 1A004 1A035 A006 B003 SEE TABLE 25-139 40-249 40-204 40-005 40-004 40-264 D391 40-266 G512 40-192 D337 C165 25-091 25-089 G189 G245 G367 25-160 SA10104 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 SEE TABLE 1A259 D310 25-167 G242 G243 G339 31 32 33 34 35 36 37 30 Part Number Ref No. PARTS LIST 40-240 Atex Cat.
HG-CF-1196-A, 12/02/10 Page 11 TORQUE SETTINGS 27 Nm (20 lbs/ft) 14.5 - 15 Nm (10 - 11 lbs/ft) D Inner Seals - Lips face in towards holes. Outer Seal - Lips face outwards Diaphragm Shaft Bush :Lip Seal Positions 13.5 - 16 Nm (10 - 12 lbs/ft) B 42 - 47 Nm (30 - 35 lbs/ft) C A Exploded Assembly :- B2505 All St. St. Pump Refer to page 10 Parts List table for item Ref. Nos.
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.
