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Flomatic Flo-Flex 745, Manual

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Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801 

Phone: 518-761-9797           Fax: 518-761-9798        www.flomatic.com 

745PI-BF-LS-ASC Rev. B 

October 12, 2018 

 

O&M Manual 

 

Flo-Flex

®

 

Swing Check Valve 

Model 745

 

Operation, Maintenance and 

Installation Manual 

 

 

FAILURE TO FOLLOW THESE INSTRUCTION WILL VOID ANY WARRANTY 

 

Note:

 Keep this O&M Manual in a safe place for future reference for service and parts. 

 

Model: _________________    Size: ____________    Type: _________________ 

 

Working Pressure: __________     Installation Date: __________ 

 

 

Summary of Contents for Flo-Flex 745

Page 1: ...Manual Flo Flex Swing Check Valve Model 745 Operation Maintenance and Installation Manual FAILURE TO FOLLOW THESE INSTRUCTION WILL VOID ANY WARRANTY Note Keep this O M Manual in a safe place for future reference for service and parts Model _________________ Size ____________ Type _________________ Working Pressure __________ Installation Date __________ ...

Page 2: ...lve Model 745 Operation Maintenance and Installation Manual List of Contents Page INTRODUCTION 3 RECEIVING AND STORAGE 3 DESCRIPTION OF OPERATION 3 VALVE CONSTRUCTION 3 INSTALLATION 4 MAINTENANCE 4 TROUBLESHOOTING 4 DISASSEMBLY and RE ASSEMBLY 4 BACK FLUSH DEVICE BF OPTIONAL 5 POSITION INDICATOR PI OPTIONAL 6 LIMIT SWITCH LS OPTIONAL 6 SPARE PARTS AND SERVICE 7 WARRANTY 7 ...

Page 3: ...D STORAGE Inspect valves upon receipt for damage in shipment Unload valve carefully to the ground without dropping Do not allow lifting slings or chains to come in contact with the seat or flange sealing surface area use eyebolts or rods through the flange holes on large valves Valves should remain crated clean and dry until installed to prevent weather related damage For long term storage greater...

Page 4: ...led mechanic with proper tools and a power hoist for larger valves It is recommended that when disassemble the valve to inspect the rubber valve disc for wear or the valve seat for deposits Dimensions for 150 Class Valves Max Torque Valve Size Flange Outside Diameter Number of Bolt Holes Bolt Diameter 150 300 inches inches inches ft lbs ft lbs 2 6 4 5 8 90 90 2 1 2 7 4 5 8 90 150 3 7 1 2 4 5 8 90 ...

Page 5: ...eparately and as an optional assembly from the factory install as follow 1 Relief the pipe line pressure and drain the pipeline 2 Carefully remove the pipe plug located on the bottom boss of the valve to insure that there is no pressure in the line 3 Inspect the back flush device and place in the non extended position The stainless steel shaft should extend a maximum 1 past the end of the brass bu...

Page 6: ...sy wiring field adjustments and servicing The limit switch is SCADA Supervisory Control and Data Acquisition compatible for applications requiring open close indication Function The limit switch when probably adjusted will give an electric closed and or open circuit when valve is open and or in closed position NEMA Ratings 1 3 4 4X 6 6P 12 13 UL Ratings 6 A 120Vac or 250 Vac DPST Installation 1 Fi...

Page 7: ... will replace any valve covered by this warranty that is found to be defective within one year unless otherwise stated below from the time of sale This warranty will be void if the product has been modified in any way by the purchaser or is subjected to unreasonable use EXCLUSION OF WARRANTIES Flomatic Corporation makes no warranties expressed or implied with respect to its valves other than the e...

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