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Flexible Piping Systems for Fuel Oil and Generator Applications


The FlexWorks Fuel Oil Piping System is designed to provide a reliable fuel supply system to generators and boilers from remote fuel tanks. Typical applications include both a 3/4" supply and a 1" overflow return line running from a remote AST or UST to a generator engine or boiler day tank. Both lines are typically inserted into a common FlexWorks Access Pipe to provide retractable access to the fuel lines. See page 10 for fuel oil pipe. OPW will cut fuel oil pipe to length at no charge.

Features & Benefits

AST Applications

Technical Information
Ordering Information

Ordering Specifications – Specialty Fitting

Item Number Application




PDT-411 4" x 1" x 1" Double Tap Bushing 12 5
PJK-4175 4" x 1" x 3/4" Pipe Joining Kit 10 4.5
PTA-4175 Transition Assembly 8 3.5
TBA-4175 4" Fuel Oil Boot Transition Assembly 1 0.5
TBA-4175A 4" Fuel Oil Boot Transition Assembly with Air Stem 1 0.5
SBC-2075 Swivel Bolt-On Coupling 3/4" NPT    
SBC-2100 Swivel Bolt-On Coupling 1" NPT    
DEB-4175 3/4" and 1" Double Entry Boot Fitting 3.25 1.47

Specialty Fittings - 3/4" and 1"


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