Abstract: The invention provides a method of diagnosing a system, a method of operating an aggregating system for system diagnosis and an aggregating system for system diagnosis, which are effective for achieving comprehensive and effective system cost reduction. For a target system, at least two or more kinds of diagnoses selected from a trap operation diagnosis, a fluid leakage diagnosis, a system improvement diagnosis and maintenance improvement diagnosis are effected in a batch and in reporting the results of these diagnoses in a batch, there are reported an economic advantage MQt? obtained by reduction in a trap-passed seam loss Qt?, an economic advantage MQs, MQp, MQn obtained by reduction in fluid leakage loss Qs, Qp, Qn, an economic advantage Ma obtained by system improvement and an economic advantage Mb obtained by method improvement in a maintenance method.

Abstract: The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition to the entrance and the exit for connection/disconnection between the entrance and the discharge orifice and/or between the exit and the discharge orifice. The ball valve of the present invention may be attached to piping systems such as, for example, the secondary side of a steam trap, which blocks steam but automatically discharges condensed water, and is used for checking a discharging state of the primary side steam trap and/or releasing remaining pressure on the secondary side.

Abstract: To make organic fertilizer by performing fermentation treatment of organic waste containing a large quantity of water content such as garbage, while maintaining conditions of treatment suitable for fermentation. A fermentation treatment apparatus of organic waste according to the present invention is constituted in such a way that a steam supply pipe 3 is connected to a jacket part 2 of a fermentation tank 1 by way of reducing valves 17 and 18, and a vacuum pump 4 is connected below the jacket part 2 by way of a communicating line 27. When steam reduced in pressure lower than 100° C. is supplied into the jacket part 2, the waste housed within the fermentation tank 1 can be promptly treated with fermentation by utilizing condensation heat of steam. Furthermore, the air at a predetermined humidity is supplied into the fermentation tank 1 from the air supply part 36, so that fermentation treatment due to aerobic bacteria can be performed in a short time and efficiently.

Abstract: A combination pump and trap is disclosed which includes a snap-over mechanism useful for small floats with little buoyancy. The snap-over mechanism has a geometry in which the distance between the float or compression arm pivot point and the pivot for the portion of the spring connected to a first arm or toggle link is greater than the distance from the float or compression arm pivot point and the pivot for the portion of the spring connected to the float or compression arm. This geometry allows the magnification of buoyancy by the main arm which is transmitted to the first toggle link to be large and the magnification of buoyancy by the first toggle link which is transmitted to the change-over valve to be large. A trap which is connected to the float arm is also used, which allows a liquid seal to be maintained at the liquid discharge port.

Abstract: A liquid forced-feed apparatus has a built-in float in a hermetic vessel provided with a working fluid inlet port, a working fluid discharge port, a forced-feed liquid inlet port, and a forced-feed liquid discharge port. A snap mechanism which is actuated to operate the working fluid inlet port and the working fluid discharge port with the upward and downward strokes of the float, to thereby force a liquid in the hermetic vessel out through the forced-feed liquid discharge port. A power transmitting shaft for transmitting the upward-and-downward movement of the float to the snap mechanism extends out of the hermetic vessel. The snap mechanism is disposed outside of the hermetic vessel.

Abstract: A combination pump and trap is disclosed which includes a snap-over mechanism useful for small floats with little buoyancy. The snap-over mechanism has a geometry in which the distance between the float or compression arm pivot point and the pivot for the portion of the spring connected to a first arm or toggle link is greater than the distance from the float or compression arm pivot point and the pivot for the portion of the spring connected to the float or compression arm. This geometry allows the magnification of buoyancy by the main arm which is transmitted to the first toggle link to be large and the magnification of buoyancy by the first toggle link which is transmitted to the change-over valve to be large. A trap which is connected to the float arm is also used, which allows a liquid seal to be maintained at the liquid discharge port.

Abstract: A thermally-actuated steam trap, which performs the opening and closing operations of a valve according to a change in the volume of an expansible medium, comprises at least two diaphragms and a valve member fitted to the lower diaphragm. The lower diaphragm is shaped so that it comes to be more sensitive to a change in pressure than the upper diaphragm, to provide a steam trap which permits a discharge passage to be opened also when the fluid pressure at the inlet side is relatively week, and which is stable in operation from the initial stage as the opening and closing operations of the valve are performed intermittently.