Gate dimensions: Height 82.5 ft, Width 58 ft, Depth 6 ft Gate type: Mitre, latticework
of plate steel (500 tons each) Motors:
Each mitre gate: 2 x 30 hp pump motors
Each Taintor valve*: 1 x 30 hp pump motor
Each ship arrestor: 2 x 30 hp pump motors Operating pressure: 3,000 continuous psi
(5,000 psi intermittent) Operating pressure in bars**: Mitre
gates, 50; Taintor valves, 120; Arrestors, 100 Biggest power unit: 240 hp, 8 electric motors Cylinders: Mitre gates: 300 mm bore x
160 mm rod diameter x 3,700 mm stroke Taintor valves:
Type 1-4: 150 mm bore x 100 mm
rod diameter x 5,024 mm stroke
Type 5-6: 250 mm bore x 180 mm
rod diameter x 4,420 mm stroke Ship arrestors: 180 mm bore x 140 mm
rod diameter x 3,300 mm stroke Rod extension: up to 11,043 mm
* Valves to fill or drain the lock chamber
**A bar is 14.504 psi
Sources: Bosch Rexroth, St. Lawrence Seaway, interviews
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