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55

GB

7. Trouble shooting

Air is applied to pump but pump is not starting

.  Clean filters and debris from all fluid lines.

.  Make sure all valves on fluid lines are open.

3.  Inspect diaphragms for rupture.

4  Air pressure must not be below .4 bar.

Pump is pumping but not priming

.  Check all suction line connections for leakage.

.  Inspect check valves for wear or debris.

3.  Suction lift specifications may be exceeded.

4.  If fluid is viscous use larger suction lines.

Leakage

.  Retorque all fasteners to specified torque requirements.

.  Replace o-rings.

3.  Inspect diaphragms for rupture.

Low Flow rate

.  Confirm air pressure and air capacity at the air valve as required. 

.  Check for leaks in suction line or obstructions in lines.

3.  If fluid is viscous use larger suction lines.

Air in discharge lines

.  Check for leaks in suction lines.

.  Inspect diaphragms for rupture.

Erratic cycling

.  Inspect check valve seats for debris.

.  Inspect fluid lines for debris.

3.  Automatic valves must be properly functioning.

4.  Viscosity of product may be changing.

Premature destruction of wetted components

.  If fluid is abrasive slow down pump or increase size of pump.

.  Filter fluid for sharp objects.

3.  Make sure fluid is compatible with wetted materials.

Содержание Size 1 - 1/4"

Страница 1: ...operating instructions before start up To be retained for future reference Operating Instructions Oil free air operated DOUBLE DIAPHRAGM PUMPS in non metallic and metallic version Model 1 4 3 8 1 2 1...

Страница 2: ...m and Pilot Sleeve Assembly 18 3 4 3 External fastener torque requirements 19 3 4 4 Maintenance of Air Valve 20 3 5 Maintenance Model 1 2 Bolted Version 21 3 5 1 Maintenance of Check Valve and O Ring...

Страница 3: ...2 Bolted Version 45 5 9 Model 2 Band Clamp Version 46 5 10 Model 2 Bolted Version 47 5 11 Model 3 Bolted Version 48 6 Performance curves 6 1 Model 1 4 49 6 2 Model 3 8 Band Clamp Version 49 6 3 Model...

Страница 4: ...h or extremely serious injury Warning Defines a possibly dangerous situation Non observance of the precaution can cause death or extremely serious injury Caution Defines a possibly harmful situation T...

Страница 5: ...g system or at the pump Danger Do not clean or service pump hoses or dispensing valves when the system is pressurized serious injury may result Disconnect air supply line and relieve pressure from the...

Страница 6: ...bar safe operating pressure exceeded Caution Following conditions cut down the continuous operation of the pump high stroke frequency Flow rate at maximum value resistance at suction side large suctio...

Страница 7: ...8 0 bar 8 2 bar 8 2 bar 6 8 bar Models with Teflon balls 5 0 m 3 0 m 3 0 m 3 0 m 3 0 m 3 0 m Other models 5 0 m 4 5 m 4 5 m 4 5 m 4 5 m 4 5 m Weight PVDF models 3 2 kg 5 4 kg 13 7 kg 29 5 kg 31 kg Oth...

Страница 8: ...apacity at 8 2 bar 6 8 bar 6 8 bar 6 8 bar 6 8 bar Models with Teflon balls 3 0 m 3 0 m 3 0 m 3 0 m 3 0 m Other models 5 2 m 4 5 m 4 5 m 4 5 m 4 5 m Weight PVDF models 2 3 kg 4 9 kg 9 9 kg 30 kg 30 kg...

Страница 9: ...electrical path to ground with an ohmmeter from each component Resistance of grounding must not exceed 106 ohm Note local building codes and regulations for explosion protection Use conductive hoses...

Страница 10: ...not use air line lubrication Air supply should be clean and dry Air Inlet Notice Suction and discharge ports may be repositioned to suit the application Flexible Connection Valve or Flow meter Discha...

Страница 11: ...f torque on plastic pipe threads 9 For installation with connection flanges tighten fasteners to 25 Nm of torque 10 If changing to a different application reconfirm compatibility of fluid 2 1 Submerge...

Страница 12: ...nuts 28 and slide the six cap screws 27 that hold the pump together out of the pump Remove the eight screws 5 and two screws 5A from the left and right manifold plates 1 19 and inspect the gaskets 2...

Страница 13: ...o to step 10 9 If no further inspection is necessary reassemble inner diaphragm plates and diaphragms onto stud of outer diaphragm plates and screw each assembly into diaphragm rod Make sure optional...

Страница 14: ...oint the assembly is not affixed to anything Press down as shown below to insert long half of diaphragm rod 16 through spring clip assembly and position un der spring ends Apply pressure with finger w...

Страница 15: ...mp chambers 16 If replacement is necessary due to abrasion or rupture unscrew the outer diaphragm plates 17 Only models that have PTFE elastomers will have both a PTFE overlay 18 that faces the outer...

Страница 16: ...ing the metal spring retainer from one side to the other 12 To reassemble the air valve first shift the spring mechanism to the side with the hard stop Next prop the spring retainer into a more neutra...

Страница 17: ...n all external fasteners adjusting and aligning and gradually in an alternat ing fashion tighten to torque requirements listed below Air valve assembly screws 1 35 Nm Band clamps 18 8 Nm Manifold bolt...

Страница 18: ...reinserted into the valve seat location Caution When using pumps built with PTFE o rings always replace with new PTFE o rings since the original o rings may not reseal the pump 3 4 2 Maintenance of D...

Страница 19: ...bers onto intermediate make sure that witness lines are matching Caution If air valve has been removed proper orientation of air system with fluid chambers must be observed The top of the intermediate...

Страница 20: ...e each other when reassembling air valve Lube all components with suggested maintenance grease as an aid in reassembly 12 Reinsert air valve spool 2 inside of air valve body 7 Place shuttle 6 on middl...

Страница 21: ...abrasion or rupture unscrew the outer diaphragm plates 29 Models that are built with PTFE elastomers will have a PTFE overlay 30 that faces the outer pumping chamber 28 and a back up diaphragm 31 on...

Страница 22: ...em with fluid chambers must be observed The bottom of the intermediate has the smaller hook shaped air passage slot on the air valve mounting face and the outer chamber check ball cavity should be poi...

Страница 23: ...for any damage and replace if necessary and reinsert in o ring groove Caution Make sure that the open sides of the two lip seals 43 face each other when reassembling air valve Lube all components with...

Страница 24: ...built with PTFE o rings always replace with new PTFE o rings since the original o rings may not reseal the pump PVDF pumps need additional gaskets 34 These gaskets are adhesive backed Remove paper bac...

Страница 25: ...are matching Caution If air valve has been removed proper orientation of air system with fluid chambers must be observed The top of the intermediate has a single vertical air passage slot on the air...

Страница 26: ...lve Lube all components with suggested maintenance grease as an aid in reassembly 12 Reinsert air valve spool 2 inside of air valve body 7 Place shuttle 6 on middle rib of air valve spool 2 through th...

Страница 27: ...28 and a back up diaphragm 31 on the air side of pump Pumps without PTFE will contain only the back up dia phragms 31 5 If a diaphragm has been ruptured and corrosive or viscous fluid has entered the...

Страница 28: ...and nuts 17 from the air valve body 7 The shuttle plate 5 and shuttle 6 may be inspected by removing them from their location in the slot in the back of the air valve Inspect for scratches or surface...

Страница 29: ...o the curved portion of the valve seat and be facing upward when reinserted into the valve seat location Caution When using pumps built with PTFE o rings always replace with new PTFE o rings since the...

Страница 30: ...valve has been removed proper orientation of air system with fluid chambers must be observed The top of the intermediate has a single vertical air passage slot on the air valve mounting face while th...

Страница 31: ...ring 44 for any damage and replace if necessary and reinsert in o ring groove Caution Make sure that the open sides of the two lip seals 43 face each other when reassembling air valve Lube all compon...

Страница 32: ...upward when reinserted into the valve seat location Tighten all external fasteners to final torque requirement after pump is completely as sembled Caution When using pumps built with PTFE o rings alw...

Страница 33: ...roper orientation of air system with fluid chambers must be observed The top of the intermediate has a single vertical air passage slot on the air valve mounting face while the outer chamber check bal...

Страница 34: ...plug o ring 44 for any damage and replace if necessary and reinsert in o ring groove Caution Make sure that the open sides of the two lip seals 43 face each other when reassembling air valve Lube all...

Страница 35: ...fluid has entered the air side of the pump the com plete air system should be inspected 6 After removing the diaphragm plate assemblies bumpers 3 flat washers 47 the pilot sleeve assembly 13 14 15 42...

Страница 36: ...r 28 and tighten fasteners 16 17 18 33 to 20 ft lbs 27 12 Nm of torque Return to the first outer chamber align the suction opening flanges until they are level and on the same plane tighten fasteners...

Страница 37: ...l 43 and o rings 44 out of inside bore of the air valve body Check the air valve spool lip seal and o rings for cracks splitting scratches and wear Replace and or clean items as neces sary 12 Lubricat...

Страница 38: ...38 GB Dimensions in mm 5 Dimensions 5 1 Model 1 4 Mounting Positions Front View Side View Rear View Inlet Outlet Air Outlet Air Inlet 4 Slots Dia 9 6 Approximate Dimensions with Muffler 157 0...

Страница 39: ...39 GB Dimensions in mm 5 2 Model 3 8 Outlet Air Inlet Inlet 4 Slots Dia 7 6 Front View Side View...

Страница 40: ...Front View Side View Front View Side View Metallic pumps Air Inlet Inlet Outlet Air Inlet Inlet Air Outlet 4 Slots Dia 7 0 Outlet Air Outlet 4 Slots Dia 8 0 Dimensions in mm Approximate Dimensions wit...

Страница 41: ...let Inlet Air Outlet Front View Side View Outlet Inlet Air Outlet Dimensions in mm Metallic pumps 5 4 Model 1 2 Bolted Version Non metallic pumps Air Inlet Approximate Dimensions with Muffler 187 2 Ap...

Страница 42: ...s Front View Side View Dimensions in mm Front View Side View Outlet Air Inlet Inlet Air Outlet 4 Holes 11 2 Metallic pumps Outlet Inlet 4 Holes 11 2 Air Outlet Air Inlet Approximate Dimensions with Mu...

Страница 43: ...tallic pumps Metallic pumps Front View Side View Air Outlet Front View Side View Dimensions in mm Outlet Inlet Air Inlet Outlet Inlet Air Outlet Air Inlet Approximate Dimensions with Muffler 260 4 App...

Страница 44: ...n Non metallic pumps Metallic pumps Front View Side View Front View Side View Dimensions in mm Air Inlet Outlet Inlet Air Outlet Air Inlet Air Outlet Outlet Inlet 4 Slots Dia 14 2 4 Slots Dia 14 2 App...

Страница 45: ...1 1 2 Bolted Version Non metallic pumps Metallic pumps Dimensions in mm Outlet Outlet Air Inlet Inlet Air Outlet Inlet Air Inlet Air Outlet 4 Slots Dia 14 2 4 Slots Dia 14 2 Front View Side View Front...

Страница 46: ...Non metallic pumps Metallic pumps Outlet Front View Side View Front View Side View Dimensions in mm Inlet Air Outlet Air Outlet Outlet Inlet Air Inlet 4 Slots Dia 14 2 4 Slots Dia 14 2 Air Inlet Appro...

Страница 47: ...a 14 2 Air Outlet Outlet Air Inlet Inlet 4 Slots Dia 14 2 A B C D E F G J K L M Aluminium 495 0 667 0 636 0 352 0 57 1 255 5 304 8 309 9 127 0 152 4 327 6 Stainless steel 495 0 625 3 584 2 382 3 89 0...

Страница 48: ...48 GB 5 11 Model 3 Bolted Version Metallic pumps Front View Side View Dimensions in mm Air Inlet Air Outlet Outlet Inlet...

Страница 49: ...49 GB 6 Performance Curves 6 1 Model 1 4 6 2 Model 3 8 Band Clamp Version...

Страница 50: ...50 GB 6 4 Model 1 2 Bolted Version 6 3 Model 1 2 Band Clamp Version...

Страница 51: ...51 GB 6 6 Model 1 Bolted Version 6 5 Model 1 Band Clamp Version...

Страница 52: ...52 GB 6 8 Model 1 1 2 Bolted Version 6 7 Model 1 1 2 Band Clamp Version...

Страница 53: ...53 GB 6 10 Model 2 Bolted Version 6 9 Model 2 Band Clamp Version...

Страница 54: ...54 GB 6 11 Model 3 Bolted Version...

Страница 55: ...requirements 2 Replace o rings 3 Inspect diaphragms for rupture Low Flow rate 1 Confirm air pressure and air capacity at the air valve as required 2 Check for leaks in suction line or obstructions in...

Страница 56: ...56 GB...

Страница 57: ...PPV KNE KNT KNV NT C NB C NV C PPB PPT NT KNT PPE PPV NB PPB AT PPT TF KNT TF Alu SS NT C PPB PPT NT KNT PPE PPV AT NB KNV PPT TF KNT TF Alu SS PPB PPT KNE KNT PPE Alu SS Alu with conductive diaphragm...

Страница 58: ...58 GB...

Страница 59: ...59 GB...

Страница 60: ...technical changes 01 08 Best Nr 5999 801 Printed in Germany Sch 1 000 05 08 Lutz Pumpen GmbH Erlenstra e 5 7 D 97877 Wertheim Phone 93 42 8 79 0 Fax 93 42 87 94 04 e mail info lutz pumpen de http www...

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