Abstract: A water electrolysis system includes a high-pressure water electrolysis apparatus and a gas-liquid separation device. The gas-liquid separation device includes a block member which includes a gas-liquid separation opening and a water-level detection opening. The gas-liquid separation opening and the water-level detection opening extend substantially vertically and includes respective bottom portions which integrally communicate with a discharge pipe. The discharge pipe is disposed at a lower side portion of the block member. The water-level detection opening includes a top portion and a top water-level detection section. The block member further includes an inlet hole in which the hydrogen is introduced from the high-pressure water electrolysis device. The inlet hole is disposed at an upper side portion of the block member. The inlet hole is positioned above the top water-level detection section of the water-level detection opening.

Abstract: A drainage system is for a compressor assembly that includes at least one separator with a chamber. The system includes a drain valve fluidly coupled with the separator chamber and adjustable between open and closed states. An actuator is operatively coupled with and adjusts the valve between the open and closed states or/and a sensor senses when the valve is open. A pressure sensor is configured to sense pressure within the chamber and a logic circuit is coupled with the pressure sensor and determines when the valve either has been or should have been adjusted to the open state. The logic circuit also generates an output signal or/and operates a device when the chamber pressure remains substantially constant or varies by less than a predetermined amount subsequent to the valve being opened and/or when the chamber pressure varies by at least the predetermined amount after the valve is opened.

Abstract: Device for separating oil from the air-oil separator of an oil reservoir, which device comprises a line (3) for the air-oil separator which is connected to the above-mentioned oil reservoir (1) with one far end and in which is provided a suction pump (4) for sucking in air, and whereby the other far end of the above-mentioned line (3) is connected to a filter (7) which is provided in a chamber (8) which is connected to the above-mentioned oil reservoir (1) by means of a return line (9), and which chamber (8) is provided with an outlet (10) to the environment, characterised in that a non-return valve (12) is provided in a the above-mentioned return line (9) which lets an air flow pass from the oil reservoir (1) to the chamber (8), and which prevents an air flow in the opposite direction, and whereby this non-return valve is provided with a small flow-back opening (16) which allows the oil which has been separated in the chamber (8) by the filter (7) to flow back to the oil reservoir (1).

Abstract: A gas/liquid phase separator includes a fluid inlet, a vapor outlet, a liquid outlet, and first and second valves disposed in fluid communication with the liquid outlet. Both valves are controllable in response to a fluid level in the gas/liquid phase separator. Both valves are further disposed in parallel fluid communication with each other. A method of controlling a liquid level in the phase separator includes sensing an amount of liquid in the phase separator, sensing a system pressure, and selectively opening a valve disposed in fluid communication with the phase separator to drain the liquid.