The chemistry department's helium recovery system at Texas A&M University in College Station, TX makes its way through much of the '72 wing of the department. The helium gas collected during a fill though is extremely cold, and condensation on the tubing could become a real issue. To mitigate this, heat exchangers were put inline immediately after the magnets to raise the fill exhaust to room temperature.
| Part Description | Company | Catalog # | Quantity |
|---|---|---|---|
| butt-weld NW40 | McMaster Carr | 4518K42 | 2 |
| 0.5 psi pop-off valve | Circle Valve | 532T1-.5 | 2 |
| 0.15 psi check valve | Circle Valve | 259t-1pp-.15 | 1 |
| 4ft exchanger | Grainger | 5E302 | 2 |
| 2 socket elbow | McMaster Carr | 5520K64 | 4 |
| 1 socket elbow | McMaster Carr | 5520K188 | 2 |
| NW25 ball valve | Ideal Vacuum | P103569 | 1 |
| 1¼" copper pipe | Sourced Local | 5.5 ft | |
| spool soft solder | Sourced Local | 1 | |
| flux | Sourced Local | 1 | |
| ⅛" to ¼" push-to-connect | Grainger | 6jk43 | 4 |
| flow meter | Omega | FL7611 | 1 |
| aluminum unistrut 8' | McMaster Carr | 3230T26 | 2 |
| unistrut nuts | McMaster Carr | 3259T32 | 4 |
| bolts for nuts | McMaster Carr | 91309A622 | 4 |
| washers | McMaster Carr | 98180A130 | 4 |
| KF25 ¾" NPT-M | LDS Vacuum | NW25x75NPT | 2 |
| KF40/KF25 Reducer | LDS Vacuum | NW40x25-CR | 2 |
| KF25 Cross | LDS Vacuum | NW25-100-X | 2 |
| KF25 ⅛" NPT-F | LDS Vacuum | NW25-100-SP1 | 4 |
