Abstract: A refrigerant recovery/loading manifold for air-conditioning equipment has a manifold body and valves for opening and closing a passage inside the manifold body, the passages including a high-pressure-side passage, a low-pressure-side passage, a recovery-side passage, a vacuum-suction-side passage, a purging passage, and a common passage via which these passages communicate, at least a high-pressure-side valve being provided to the high-pressure-side valve being provided to the high-pressure-side passage, and at least a low-pressure-side valve being provided to the low-pressure-side passage; wherein a high-pressure connection means is provided to the low-pressure-side passage, the high-pressure connection means having a valve mechanism and being able to connect with a high-pressure-side quick joint.

Abstract: A coupler for connecting a hose of a refrigerant loading/recovery source to a linking part of a heating/cooling device, the linking part having a linking-part-side valve body; the coupler having a connecting part capable of connecting with the linking part of the heating/cooling device, a main shaft capable of pressing the linking-part-side valve body of the heating/cooling device, and a main shaft operating part for moving the main shaft forward and backward; restricting protuberances being provided to either a rear outside face of the connecting part or the main shaft operating part; and protuberance-guiding device for guiding the restricting protuberances being formed in the other one of the rear outside face of the connecting part and the main shaft operating part, along tracks that spiral around the center axis of the connecting part.

Abstract: There are provided a high-yield economical, refrigerant processing apparatus for collected equipment which can recover and regenerate a liquid refrigerant by highly efficient thermal conversion and charge collected equipment with the liquid refrigerant, without releasing the refrigerant into the air, and an oil separator for use with the refrigerant processing apparatus. In the oil separator, an oil is separated from an oil-containing refrigerant to be recovered, and in a condenser, a gaseous refrigerant is converted into a liquid refrigerant. The oil separator has a heat exchanging double spiral pipe in which a double pipe made of a central pipe and an external pipe is formed spirally about a vertical central axis of the oil separator, and a heating unit for vaporizing the liquid refrigerant.

Abstract: In a refrigerant charging apparatus for charging a refrigerant by using a refrigerant can (1), an upper can-opening part (21), a conduit (6) having two ways of inner passages for indication and charging and a lower can-opening part (6A), and a level indicator (4) communicated with the refrigerant can via both can-opening parts are provided in order to correctly indicate remaining quantity of the refrigerant in the can.