VAC-U-FLANGE® Flanges (CF)

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Available in solid (non-rotatable) and multi-piece (rotatable) styles, as well as double-sided and zero-length adapter versions. Typically used in ultra-high vacuum applications, VAC-U-FLANGE® flanges are designed to conform to industry standard knife edge seal style flanges and are compatible with MDC , Conflat® and flanges from other manufacturers. Huntington flanges meet or exceed industry standards for form, fit & function.

337 Series Flanges

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337 Series, 3.375″ OD, VAC-U-FLANGE® Flanges

Nom OD
“A”
Flange
OD
Bolt Circle
“B”
Thickness
“C”
Set Back
“D”
Blank Wht.
(lbs.)
Bored Wht.
(lbs.)
# of Bolt
Holes
Clearance
Holes (dia.)
Tapped
Holes
3-3/8″ 3.375″ 2.85″ 0.62″ .220″ 1.5 1.0 8 0.33″ 5/16-24

Configuration Chart

Description Tube Size Part Number Description Tube Size Part Number
Flange, Blank 337-000 Rotatable Flange, Blank 337-000-R
Flange, Bored 1-1/2″ 337-150 Rotatable Flange, Bored 1-1/2″ 337-150-R
Flange, Bored 2″ 337-200 Rotatable Flange, Bored 2″ 337-200-R
Flange, Blank, Tapped 337-000-T Rotatable Flange, Blank, Tapped 337-000-RT
Flange, Bored, Tapped 1-1/2″ 337-150-T Rotatable Flange, Bored, Tapped 1-1/2″ 337-150-RT
Flange, Bored, Tapped 2″ 337-200-T Rotatable Flange, Bored, Tapped 2″ 337-200-RT
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