| 摘要 |
The remote control valve has connected to it an oxygen supply, an air supply, an underwater oxygen-arc cutting torch and an air cylinder that operates a knife switch. When the oxygen valve on the underwater oxygen-arc cutting torch is depressed the oxygen flows through the front body orifices and out through the oxygen outlet port to the underwater oxygen-arc cutting torch at the required pressure and volume. Also as the oxygen flows through the front body it shifts the piston and spool valve to the open position and the spool valve directs the air pressure from the air inlet port to the air outlet port which extends the air cylinder and closes the knife switch. When the oxygen valve on the underwater oxygen-arc cutting torch is released the oxygen flow stops and the spool valve and piston are shifted to the closed (exhaust) position by the compression spring and the air cylinder is exhausted out through the air exhaust port which opens the knife switch.
|
