Illustration 3-15: Flanged Magnet Vent Adapter
8.6.2 Vent Size
The total pressure drop of the cryogenic vent system (from the magnet vent interface to, and
including, the vent cap) must be less than 17 psi (117.2 kPa). The pressure drop of the RF
shield waveguide must be included in the overall calculation.
Refer to Magnet Cryogenic Venting Pressure Drop Reference Tables
8.6.3 Vent Materials
1. The 8 in. (203 mm) OD vent material must be one of the following materials with the wall
thickness indicated:
a.
SS 304: Minimum 0.035 in. (0.89 mm); Maximum 0.125 in. (3.18 mm)
b.
AL 6061-T6: Minimum 0.083 in. (2.11 mm); Maximum 0.125 in. (3.18 mm)
SIGNA Voyager Pre-Installation
Direction 5680008–1EN, Revision 2
Chapter 3 Magnet Room 87
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