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September 2010



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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 Contact Contact G016019 Contact
021033 2.188" 0.756" 10/.265 Contact Contact G021033 Contact
026046 3.125" 1.125" 12/.265 Contact Contact G026046 Contact
026056 4.125" 1.125" 14/.265 Contact Contact G026056 Contact
035073 5.250" 1.500" 18/.332 Contact Contact G035073 Contact
035098 7.750" 1.500" 22/.332 Contact Contact G035098 Contact
033115 9.730" 1.520" 22/.265 Contact Contact G033115 Contact
043124 10.125" 2.000" 26/.332 Contact Contact G043124 Contact
042145 12.250" 1.900" 30/.332 Contact Contact G042145 Contact
The following flanges are designed to accept standard sizes of square tubing.
029029 1.370" 1.370" 8/.270 Contact Contact G029029 Contact
034034 1.870" 1.870" 8/.270 Contact Contact G034034 Contact
044044 2.370" 2.370" 12/.332 Contact Contact G044044 Contact
049049 2.870" 2.870" 12/.332 Contact Contact G049049 Contact
059059 3.834" 3.834" 16/.332 Contact Contact G059059 Contact
069069 4.834" 4.834" 20/.332 Contact Contact G069069 Contact
079079 5.834" 5.834" 24/.332 Contact Contact G079079 Contact
099099 7.834" 7.834" 28/.332 Contact Contact G099099 Contact
127127 9.760" 9.760" 36/.390 Contact Contact G127127 Contact
147147 11.760" 11.760" 40/.390 Contact Contact G147147 Contact
167167 13.760" 13.760" 48/.390 Contact Contact G167167 Contact
*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 Contact
PBN-25-175N 026046
026056		 1/4 - 28 x 1-3/4 Pack of 25 Contact
PBN-31-200N 044044
049044
049049		 5/16 - 24 x 2.0 Pack of 25 Contact
PBN-31-225N 035073
035098
043124
067069
079079		 5/16 - 24 x 2-1/4 Pack of 25 Contact
PBN-31-250N 099099 5/16 - 24 x 2-1/2 Pack of 50 Contact
PBN-38-300N 127127
147147		 3/8 - 24 x 3.0 Pack of 50 Contact
PBN-38-350N 167167 3/8 - 24 x 3-1/2 Pack of 50 Contact


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