TapFlo Guardian system Mk3.1 Operation & Maintenance Manual Download Page 20 | Manualshive

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DRY-RUN & STOP (DR&S)

Issue : 020913-B

TPUK-GU31X

18

Principle of operation

The Guardian monitors the fluid discharge pressure of the pump, changing it’s
output if the monitored pressure falls below the set point of the Guardian,
representing a loss of media in the pump suction line, stopping the associate
pump accordingly.

Fig. DR&S-01

Graph of time against pressure showing Dry-run and stop principle

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Summary of Contents for Guardian system Mk3.1

Page 1: ...TPUK GU31X _T Operation Maintenance Manual Guardian system Mk3 1 Instructions for the installation start up operation maintenance and repair Spare parts STOP Read this instruction manual carefully be...

Page 2: ...oint adjustment Operation Trouble shooting 17 Dry run Stop DR S Principle of operation Recommended installation Set point adjustment Operation Trouble shooting 23 Dead head Stop DH S Principle of oper...

Page 3: ...s group II Protection method Constructional safety Maximum surface temperature 135O C Marking Standards Directives EN13463 1 EN13463 5 The Machinery Directive 2006 42 EC Non Annex IV Machinery Self de...

Page 4: ...w and the prevention of damage to or destruction of the system or its associate equipment This symbol signals possible danger caused by the presence of electric fields or live wires Receiving inspecti...

Page 5: ...amage and may cause injury to personnel Health and Safety Systems must be installed according to local and national safety rules The system must be suitable for the application Failure to do so could...

Page 6: ...ures Fully pneumatic Floating PTFE diaphragm 316L stainless steel PTFE conductive or Aluminum wetted parts Pilot output to control the associate pump Integral reset button Integral visual indicator Pn...

Page 7: ...ction plate as shown if Fig GEN 01 in conjunction with the associate table below To reconfigure undo the 4x retaining screws and rotate the plate to the correct orientation and refit being careful to...

Page 8: ...uardian must be adjusted to the correct set point to ensure proper operation Follow the instructions detailed in the application specific sections of this manual Fig GEN 02 1 Guardian Mk 3 1 2 Set poi...

Page 9: ...ush fit connection into the Reset I P connection Connect a 3 2 NC valve to the reset I P connection Valve could be manual or solenoid operated and only need be a small orifice M5 size valve The reset...

Page 10: ...facility see Fig GEN 04 Remove the M5 plug and install a 4mm to M5 push fit connection into the Alarm O P connection Fig GEN 04 2 Connect any of the output options as shown in Fig GEN 04 4 5 6 or 7 T...

Page 11: ...BARRIER STOP BARR Issue 020913 B TPUK GU31X 9 BARRIER STOP BARR...

Page 12: ...pically no additional system is used to determine if a breach has occurred and the fault goes unnoticed contaminating the media with incompatible materials and eventually the back up diaphragms breach...

Page 13: ...page 6 Media connection is connected to the barrier void ports The void ports should be linked as shown in Fig BARR 02 4 P2 Air supply is connected to a filtered and regulated compressed air source of...

Page 14: ...n be started and stopped normally by turning the supply to the Guardian on off however if not or it stops the pump erratically increase the set point regulator clockwise in half turn increments until...

Page 15: ...int is simply adjusted to a specific pressure using an external pressure gauge connected to the set point o p connection 1 Remove the M5 plug and connect an external pressure gauge to the set point O...

Page 16: ...aintained before being returned to service Refer to the Maintenance section of this manual for procedures to safely maintain the Guardian Please refer to the pump manual for details on how to safely m...

Page 17: ...lator Pump stops erratically Media has changed Perform recalibration Leaking interconnections Remake or replace interconnections Guardian set for alternative application Check function plate position...

Page 18: ...BARRIER STOP BARR Issue 020913 B TPUK GU31X 16...

Page 19: ...DRY RUN STOP DR S Issue 020913 B TPUK GU31X 17 DRY RUN STOP DR S...

Page 20: ...luid discharge pressure of the pump changing it s output if the monitored pressure falls below the set point of the Guardian representing a loss of media in the pump suction line stopping the associat...

Page 21: ...gulated compressed air source Valve O P pilots an external pilot valve sized appropriately for the pumps air inlet such as a Tapflo TPUK BV Alarm O P can be connected to a variety of indicators or plu...

Page 22: ...uardian anti clockwise until it turns freely 5 Turn on the air supply 6 Slowly increase the set point regulator adjustment screw Fig GEN 01 2 clockwise until the pressure gauge indicates desired press...

Page 23: ...ect Perform recalibration Air supply is not stable Fit air pressure regulator Media has changed Perform set up procedure Pump stops erratically Leaking interconnections Remake or replace interconnecti...

Page 24: ...DRY RUN STOP DR S Issue 020913 B TPUK GU31X 22...

Page 25: ...DEAD HEAD STOP DH S Issue 020913 B TPUK GU31X 23 DEAD HEAD STOP DH S...

Page 26: ...scharge pressure of the pump changing it s output if the monitored pressure exceeds the set point of the Guardian representing a closed valve or over pressure in the pump discharge line stopping the a...

Page 27: ...nd regulated compressed air source Valve O P pilots an external pilot valve sized appropriately for the pumps air inlet such as a Tapflo TPUK BV Alarm O P can be connected to a variety of indicators o...

Page 28: ...a further half turn 7 The Reset button should remain in the in position and the pump can be started and stopped normally by turning the supply to the Guardian on off however if not or it stops the pum...

Page 29: ...system is ready for use Calculated This method of set up is used when the set point pressure is known The Guardian s set point is simply adjusted to a specific pressure using an external pressure gaug...

Page 30: ...tom Cause Remedy Pump failure See pump operating manual Unstable air supply Check all connections and air supply System is inoperative Inconsistent pump discharge pressure Fit back pressure device suc...

Page 31: ...DEAD HEAD RESTART DH R Issue 020913 B TPUK GU31X 29 DEAD HEAD RESTART DH R...

Page 32: ...changing it s output if the monitored pressure rises to the set point of the Guardian representing a closed valve or over pressure in the pump discharge line stopping the associate pump and automatica...

Page 33: ...o the discharge pipe work of the pump Air in is connected to a filtered and regulated compressed air source Valve O P is plugged DH R O P pilots an external pilot valve sized appropriately for the pum...

Page 34: ...be started and stopped normally by turning the supply to the Guardian on off however if not or it stops the pump erratically increase the set point regulator clockwise in half turn increments until th...

Page 35: ...s known The Guardian s set point is simply adjusted to a specific pressure using an external pressure gauge connected to the set point O P connection 1 Remove the M5 plug and connect an external press...

Page 36: ...orrect Perform recalibration Air supply is not stable Fit air pressure regulator Media has changed Perform set up procedure Pump stops erratically Leaking interconnections Remake or replace interconne...

Page 37: ...32mm DD 72mm DW 71mm DB 24mm slot 5x10 ATEX A Earth point Fig SP 01 Connections Port No Description Connection type 12 Reset I P M5 2 Valve O P 4mm push fit 1 Air in 4mm push fit 4 Alarm O P M5 Suppli...

Page 38: ...sure Absolute Maximum pressure 12 BAR 25 BAR 8 BAR Weight 1100g 1400g 1100g Note Air in must be 1 bar greater than the set point Guardian coding The code details the specifications function and materi...

Page 39: ...do tie rods and remove air side assembly from the fluid side of the Guardian 2 Inspect the diaphragm surface for damage If the diaphragm is undamaged reassemble the guardian and perform the set up pro...

Page 40: ...push fit connector 3 PF 4 M5 STUD 9 Set point regulator cover 1 G SPCOVER X 10 Set point regulator screw 1 TPUK 00305 X 4 F SOCCAP M4X30 A2 70 4 F NUT M4 NYLOCK A2 11 Tie rods nuts washers 8 F WASHER...

Page 41: ...r and wear shall not be covered by the warranty Tapflo shall decide as to whether the defective or faulty part shall be replaced or repaired 5 The warrantee of the products shall be valid for a period...

Page 42: ...Contact Name Telephone Fax E mail Delivery date Install date System Type Serial No Description of fault Media Temperature O C Viscosity cPs Spec grav Kg m3 pH Value Particle content Particle size mm...

Page 43: ...WARRANTY Issue 020913 B TPUK GU31X 41 Warranty return form Sketch of installation...

Page 44: ...ensure that all the information contained in this document is correct at the time of publication due to our policy of continuous product improvement the company reserves its right to change any inform...

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