Thermionics Vacuum Products 1-800-962-2310
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October 2008


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PyraFlat Flanges




PyraFlat seals use the ConFlat sealing principle in a rectangular flange. Result: The ease, convenience, and reliability of circular seals are now available for rectangular vacuum seals.

Standard and custom PyraFlat versions have been designed for and used in many applications including high power microwave components and plasma-fusion. Please call our engineering group with your requirements.

[PyraFlat Flange]

Applications

  • Gate valve metal bonnet seals (replaces wire-sealed flanges)
  • Close packed geometries
  • Fusion reactors
  • Cassette seals
  • Wave guides
  • Drift tubes
  • Ion pumps

Ordering Information

PyraFlat Flanges for Bonnet Seals

PyraFlat flanges are manufactured and protected
under one or more of the following patents:

Patent No. 5,640,751
Patent No. 4,685,193

Ordering Information for PyraFlat Flanges

Model No.* Inside
Width
Inside
Height
Holes
(Qty/Dia)
Price Tapped
Price
Gaskets (5/pkg.) Price
016019 1.046" 0.722" 10/.177 Consult Factory Consult Factory G016019 Consult Factory
021033 2.188" 0.756" 10/.265 Consult Factory Consult Factory G021033 Consult Factory
026046 3.125" 1.125" 12/.265 Consult Factory Consult Factory G026046 Consult Factory
026056 4.125" 1.125" 14/.265 Consult Factory Consult Factory G026056 Consult Factory
035073 5.250" 1.500" 18/.332 Consult Factory Consult Factory G035073 Consult Factory
035098 7.750" 1.500" 22/.332 Consult Factory Consult Factory G035098 Consult Factory
033115 9.730" 1.520" 22/.265 Consult Factory Consult Factory G033115 Consult Factory
043124 10.125" 2.000" 26/.332 Consult Factory Consult Factory G043124 Consult Factory
042145 12.250" 1.900" 30/.332 Consult Factory Consult Factory G042145 Consult Factory
The following flanges are designed to accept standard sizes of square tubing.
029029 1.370" 1.370" 8/.270 Consult Factory Consult Factory G029029 Consult Factory
034034 1.870" 1.870" 8/.270 Consult Factory Consult Factory G034034 Consult Factory
044044 2.370" 2.370" 12/.332 Consult Factory Consult Factory G044044 Consult Factory
049049 2.870" 2.870" 12/.332 Consult Factory Consult Factory G049049 Consult Factory
059059 3.834" 3.834" 16/.332 Consult Factory Consult Factory G059059 Consult Factory
069069 4.834" 4.834" 20/.332 Consult Factory Consult Factory G069069 Consult Factory
079079 5.834" 5.834" 24/.332 Consult Factory Consult Factory G079079 Consult Factory
099099 7.834" 7.834" 28/.332 Consult Factory Consult Factory G099099 Consult Factory
127127 9.760" 9.760" 36/.390 Consult Factory Consult Factory G127127 Consult Factory
147147 11.760" 11.760" 40/.390 Consult Factory Consult Factory G147147 Consult Factory
167167 13.760" 13.760" 48/.390 Consult Factory Consult Factory G167167 Consult Factory
*Add suffixes as follows: T=Tapped Flange, B=Blank Flange (no extra charge), BT=Blank Tapped Flange
Larger or other sizes and shapes available on request.


Bolt Sets for PyraFlat Flanges

Model No. For Flange Model No. Size Qty. Price
PBN-25-150N 029029
034034
1/4 - 28 x 1-1/2 Pack of 25 Consult Factory
PBN-25-175N 026046
026056
1/4 - 28 x 1-3/4 Pack of 25 Consult Factory
PBN-31-200N 044044
049044
049049
5/16 - 24 x 2.0 Pack of 25 Consult Factory
PBN-31-225N 035073
035098
043124
067069
079079
5/16 - 24 x 2-1/4 Pack of 25 Consult Factory
PBN-31-250N 099099 5/16 - 24 x 2-1/2 Pack of 50 Consult Factory
PBN-38-300N 127127
147147
3/8 - 24 x 3.0 Pack of 50 Consult Factory
PBN-38-350N 167167 3/8 - 24 x 3-1/2 Pack of 50 Consult Factory


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