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LBFA Large Flange Tank Fittings | Bulkhead Fittings

 

The extra-large flange design seals larger hole openings compared to the standard and short length designs.  The LBFA can still be used with thick tank walls and is available in ½" to 1" connection sizes in PVC, CPVC and PP materials with either EPDM or FPM gasket seals. LBFAS bulkhead fittings have left-hand buttress threads to protect against unscrewing and blowout.  The hex flats on the body enables one-person installation. LBFA bulk head fittings are rated for pressures up to 150 PSI and listed NFS/ANSI 61, NSF/ANSI 372.

 

The body and gasket are installed on the inside of the tank and the nut is tightened while holding the body.  The nut can be tightened from the outside of the tank by holding the flats on the body end while turning the nut.

 

When using the threaded configuration, wrap the threads with PTFE tape in a clockwise direction beginning at the first or second full thread.  The threading should be "hand tight", perhaps using a strap wrench only for an additional ½ to 1½ turns past "hand tight".

 

Socket configurations can be assembled using the appropriate PVC/CPVC primer and adhesive; refer to the IOM manual below for the cure schedule by pressure and temperature.

 

Minimum required inside radii of tanks for bulkhead fitting installation

Size Minimum Rigid
Tank Radius
Minimum Flexible
Tank Radius
Maximum
Wall Thickness
½" 7.25" 6.50" 2.08"
¾" 10.00" 9.25" 2.08"
1" 11.75" 10.70" 2.08"

 

Part number Chart

Size Connection PVC CPVC PP
FPM EPDM FPM EPDM FPM EPDM
½" socket x thread BFA1005CFL BFA1005CEL BFA2005CFL BFA2005CEL - -
socket x socket BFA1005SFL BFA1005SEL BFA2005SFL BFA2005SEL - -
thread x thread BFA1005TFL BFA1005TEL BFA2005TFL BFA2005TEL BFA3005TFL BFA3005TEL
¾" socket x thread BFA1007CFL BFA1007CEL BFA2007CFL BFA2007CEL - -
socket x socket BFA1007SFL BFA1007SEL BFA2007SFL BFA2007SEL - -
thread x thread BFA1007TFL BFA1007TEL BFA2007TFL BFA2007TEL BFA3007TFL BFA3007TEL
1" socket x thread BFA1010CFL BFA1010CEL BFA2010CFL BFA2010CEL - -
socket x socket BFA1010SFL BFA1010SEL BFA2010SFL BFA2010SEL - -
thread x thread BFA1010TFL BFA1010TEL BFA2010TFL BFA2010TEL BFA3010TFL BFA3010TEL