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Summary of Contents for Dover PSG All-Flo A025-SQ
- Page 1 INSTALLATION OPERATION & MAINTENANCE A025-SQ PLASTIC 1/4 INCH AIR-OPERATED DOUBLE-DIAPHRAGM PUMP...
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Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1 WARNINGS, DANGERS AND CAUTIONS SECTION 2 MODEL DESIGNATION MATRIX SECTION 3 PRINCIPLES OF OPERATION SECTION 4 DIMENSIONAL DRAWINGS SECTION 5 PERFORMANCE CURVES TPE AND PTFE DIAPHRAGMS ..........7 SECTION 6 INSTALLATION, INSTALLATION ..................8-9 TROUBLESHOOTING ..............10 OPERATION ..................11 MAINTENANCE ................11 SECTION 7... - Page 3 SECTION CAUTIONS — READ FIRST! READ THESE WARNINGS AND SAFETY PRECAUTIONS PRIOR TO INSTALLATION OR OPERATION. FAILURE TO = Hazards or unsafe practices WARNING COMPLY WITH THESE INSTRUCTIONS COULD RESULT IN which could result in severe PERSONAL INJURY AND OR PROPERTY DAMAGE. RETAIN personal injury, death or THESE INSTRUCTIONS FOR FUTURE REFERENCE.
- Page 4 SECTION MODEL DESIGNATION MATRIX & REPAIR KITS-BOX PLASTIC FLUID CONNECTION TYPE VALVE SEAT SPECIAL OPTION (HARDWARE, MUFFLER, LUG) S = NPS (NPT/BSP) K = PVDF 2 = Dual Suction / Dual Discharge (NPT/BSP) P = Polypropylene 7 = Stainless Steel Hardware, Standard Muffler Y = Conductive Nylon 8 = Stainless Steel Hardware, Premium Muffler AIR SECTION...
- Page 5 SECTION PRINCIPLES OF OPERATION HOW AN AIR OPERATED DOUBLE DIAPHRAGM PUMP WORKS The air-valve directs pressurized air behind the diaphragm on the right, causing the diaphragm on the right to move outward (to the right). Since both the right diaphragm and the left diaphragm are connected via a diaphragm rod, when the right diaphragm moves to the right, the left diaphragm (through the action of the diaphragm rod) moves to the right also.
- Page 6 SECTION 1/4” PUMP DIMENSIONS BOX PLASTIC ALF-13210-E-01 All-Flo...
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Page 7: Performance Curves
SECTION PERFORMANCE CURVES Performance Specifications PERFORMANCE CURVE Max. Flow: 4.3 gpm (16.3 lpm) Max. Air Pressure: 100 psi (6.8 bar) Max. Solids: ” (1.6 mm) AIR CONSUMPTION (SCFM) Max. Suction Lift Dry: 10 ft-H O (3.0 m-H Max. Suction Lift Wet: 26 ft-H O (7.9 m-H Weight Polypropylene:... -
Page 8: Installation
SECTION INSTALLATION, TROUBLESHOOTING AND MAINTENANCE INSTALLATION Ensure that the air supply is sufficient for the PIPING volume of air required by the pump. Refer to product specifications for further details. For reliable Whenever possible ensure the pump is installed using operation, install a 5 micron air filter, air-valve and the shortest possible pipe lengths with the minimum pressure regulator. - Page 9 SUGGESTED INSTALLATION This illustration is a generic representation of an air operated double-diaphragm pump. ALF-13210-E-01 All-Flo...
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Page 10: Troubleshooting
TROUBLESHOOTING PROBLEM EFFECT/SOLUTION Pump Will Not Cycle Discharge line closed or plugged Discharge filter blocked Check valve stuck Air filter blocked Air supply valve closed Air supply hooked up to muffler side of pump Compressor not producing air or turned off Muffler iced or blinded Diaphragm ruptured Plant air supply line ruptured... -
Page 11: Operation
OPERATION MAINTENANCE The Air-Operated Double Diaphragm Pump requires Due to the unique nature of each application, periodic a minimum of 20 psig of air to operate, with some inspection of the pump is the best method to determine variation according to diaphragm material. Increasing a proper maintenance schedule. -
Page 12: Repair And Assembly
SECTION REPAIR AND ASSEMBLY PUMP WET END REMOVAL TOOLS NEEDED WARNING Prior to servicing the pump, ensure that the air 1) Two Wrenches, Inch and fluid lines are closed and disconnected. While wearing personal protective equipment, flush, drain and process liquid from the 2) One Screwdriver, Straight Blade pump in a safe manner. - Page 13 STEP 7 STEP 8 STEP 9 Repeat STEP 4 above for the “Left Remove the “Manifold Gaskets” Using two 3/4 Inch wrenches, Manifold”, then remove the “Left from the “Left Chamber”. Note remove “Outer Diaphragm Chamber” from the “Left Manifold”. the “Left Chamber”...
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Page 14: Air Valve Removal
REPAIR AND ASSEMBLY AIR VALVE REMOVAL TOOLS NEEDED WARNING Prior to servicing the pump, ensure that the air 1) Two Wrenches, Inch and fluid lines are closed and disconnected. While wearing personal 2) One Screwdriver, Phillips #2 protective equipment, flush, drain and process liquid from the pump in a safe manner. -
Page 15: Torque Specifications
Apply pressure with finger while inserting and assembling diaphragm rods. STEP 7 STEP 8 STEP 9 Note the assebly configuration Note the orientation of the Note on reassembly the “Shuttle” of the “Rod” and “Spring Clip”. “Shuttle” pocket. The areas in the is installed in the “Intermediate”... -
Page 16: Exploded Views And Parts Lists
SECTION EXPLODED VIEW & PARTS LIST A025-SQ*-****-*** BOX PLASTIC ALF-13210-E-01 All-Flo... - Page 17 PARTS LIST - BOX PLASTIC A025-SQ*-****-*** ITEM DESCRIPTION PUMP MODEL PART NO. MATERIAL LEFT MANIFOLD A025-SQP-****-*** 10503-40 Polypropylene A025-SQY-****-*** 10503-46 Conductive Nylon A025-SQK-****-*** 10503-56 PVDF MANIFOLD, GASKET A025-SQ*-***N-*** 11936-11 Nitrile A025-SQ*-***V-*** 11936-13 A025-SQ*-***E-*** 11936-15 EPDM A025-SQ*-***T-*** 12111-59 PTFE VALVE DISC ALL MODELS 11006-59 PTFE...
- Page 18 PARTS LIST - BOX PLASTIC A025-SQ*-****-*** ITEM DESCRIPTION PUMP MODEL PART NO. MATERIAL FLAT WASHER (1/4”) ALL MODELS (NON-PTFE COATED) 12300-26 Stainless Steel CAP SCREW (1/4” x 7-5/8”) ALL MODELS (NON-PTFE COATED) 12517-26 Stainless Steel HEX NUT (1/4” - 20) ALL MODELS (NON-PTFE COATED) 12600-26 Stainless Steel...
- Page 19 SECTION ELASTOMERS & REPAIR KITS WETTED ELASTOMERS BUNA-N (NITRILE) GEOLAST® is a general purpose elastomer used with water and is an injection molded thermoplastic material with many oils. Temperature range 10°F to 180°F (-12°C characteristics similar to Nitrile. Has excellent to 82°C).
- Page 20 SECTION WARRANTY AND REGISTRATION WARRANTY. All All-Flo products shall be covered by the standard All-Flo Limited Warranty in effect at the time of shipment. This warranty (which may be modified by All-Flo at any time) provides: MATERIALS SOLD ARE WARRANTED TO THE ORIGINAL USER AGAINST DEFECTS IN WORKMANSHIP OR MATERIALS UNDER NORMAL USE (RENTAL USE EXCLUDED) FOR FIVE YEARS AFTER PURCHASE DATE.
- Page 21 NOTES ALF-13210-E-01 All-Flo...
- Page 22 NOTES ALF-13210-E-01 All-Flo...
- Page 23 NOTES ALF-13210-E-01 All-Flo...
- Page 24 22069 Van Buren Street Grand Terrace, CA 92313-5651 USA P: +1 (440) 354-1700 F: +1 (440) 354-9466 all-flo.com All-Flo is committed to the pursuit of designing and manufacturing the highest quality product available to industry. Since the beginning in 1986, All-Flo engineers have used their extensive knowledge of today’s engineered materials, advanced air system logic and manufacturing techniques to develop the superior group of lube-free, air-operated diaphragm pumps found in this catalog.
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