Triode Pumps
Triode
Pumps use reverse electrical polarity and a radically different cathode design to achieve two important advantages over the diode pumps: (1) an electrically isolated cathode allows the starting glow discharge to be confined at significantly higher pressures, resulting in shorter starting times; (2) the sputter cathode design allows noble and non-noble gases sputtering. Triodes have the highest speeds for noble gases and freedom from argon instability in the event of an air leak. Disadvantage: because of the sputter cathode design, the triode pumps require more frequent service.
Model No. | Rated Pump Speed (l/sec) |
Flange 1 I.D./O.D. (inches) |
Wt. (lbs) |
Replacement Elements |
---|---|---|---|---|
TP-030 | ||||
TP-060 | ||||
TP-110 | ||||
TP-220 | ||||
TP-400 | ||||
TP-800 | Wire seal flange |
2 Double-ended pumps available on special order