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Used in Cryogenics, Ultra High Vacuum (UHV),and Ultra High Purity (UHP):

Our TSP Shrouds deliver very low hydrogen permeation, high surface vacuum environment for condensation, and quick pump-down.

Atlas aluminum TSPs outperform their stainless steel counterparts due, in part, to the material’s very low hydrogen permeation—seven orders of magnitude less than stainless steel.

Atlas creates a high surface vacuum environment for condensation of the Ti pumping film without producing hydrogen. Stainless steel, on the other hand, desorbs hydrogen.

A 42” wire seal chamber with many stainless flanges, for example, pumps down to 1×10 ¯11 in thirty hours.


Superior Performance

Atlas TSP Shrouds outperform their stainless steel counterparts with superior UHV and XHV performance. Our TSPs:

  • Offer very high pumping speeds.
  • Do not permeate hydrogen.
  • Provide very large surface areas that enable longer times between firings.
  • Are low cost per CFM (LPS).

Superior Pumping

Atlas TSP Shrouds maximize internal surface area for outstanding pumping speeds and heat dissipation while requiring no external water cooling during the operation.

Atlas TSPs are designed with line-of-sight shielding to prevent titanium particles from leaving the pump.

Used for UHV and XHV.

Test Gas Maximum speed¹
Liters/sec-cm²
Maximum capacity
of  film—x 10
¹⁵
300°K
77°K
300°K
77°K
H₂ 2.6
17
8-230 ͨ
7-70
H₂O 7.3
14.6

CO 8.2
11
5-23
50-160
N₂ 3.5
8.2
3-60
1.9
O₂ 8.7
11
24
CO₂ 4.7
9.3
4-12

Click image above for larger version.

Size A B C D E F G Part Number Actions
8" 7.97" 9.72" 5.75" 16.65" 13" 2.01" 3" TSP-0800
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6" 5.97" 9.72" 3.75" 16.65" 13" 2.01" 3" TSP-0600
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10" 9.97" 9.72" 7.75" 16.65" 13" 2.01" 3" TSP-1000
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Size A B C D E F G Part Number Actions
6.50" 6.50" 3.09" 2.90" TSP-0650
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