Abstract: An air release valve (10) includes a housing (11) fluidly connectable to a water line, a valve seat (12) secured to a portion of the housing (11) and formed with one or more air exit passageways (14), a seal (18) formed as a spring disc and including a stem (28) slidingly engaged with the valve seat (12), and a weight (20) coupled to the seal (18). In a sealed configuration the seal (18) presses against the valve seat (12) and seals the one or more air exit passageways (14) from air passing therethrough and in an open configuration the seal (18) is moved by the weight (20) so that the seal (18) is not pressed against the valve seat (12) and allows passage of air through the one or more air exit passageways (14).

Abstract: An air valve assembly (10) includes a main housing (12) including a coupling flange (14) for coupling to a pipe, and an air valve (20) fluidly coupled to the main housing (12). An actuator (28) is in fluid communication with the air valve (20) and a discharge tube (40). A non-contact liquid level sensor (30) is located in an external housing coupled to the main housing (12). The non-contact liquid level sensor (30) is in operative communication with the actuator (28).

Abstract: A valve with a controlled closing system includes housing having an inlet port, a liquid outlet port, and an inlet chamber. A pressure responsive closing mechanism is disposed between the inlet port and the liquid outlet port. A control chamber is in fluid communication with the inlet chamber via a fluid passage. The fluid passage includes a controlled closing system for controlling opening and closing of the fluid passage. The controlled closing system includes a seal movable with respect to and sealable against an opening of the fluid passage.

Abstract: A valve with a controlled closing system includes housing having an inlet port, a liquid outlet port, and an inlet chamber. A pressure responsive closing mechanism is disposed between the inlet port and the liquid outlet port. A control chamber is in fluid communication with the inlet chamber via a fluid passage. The fluid passage includes a controlled closing system for controlling opening and closing of the fluid passage. The controlled closing system includes a seal movable with respect to and sealable against an opening of the fluid passage.

Abstract: A coupler assembly includes a fluid fitting formed with a first bore at one end thereof and a second bore at an opposite end thereof, both of the bores being formed with female threads. A fluid adaptor includes a neck portion ending in a terminal portion larger in diameter than the neck portion. A fitting ring secures the fluid adaptor to the fitting. The fitting ring includes a split ring that fits over the terminal portion. The fitting ring is formed with a male thread, which mates with the female thread of the second bore of the fitting. The fitting ring has a first inner portion with a flat annular shape and a second inner portion with a curved annular shape.

Abstract: A valve assembly includes a valve installed in a fluid/liquid supply line, and a water circulation pipe that has a first end in fluid communication with a water supply line and a second end in fluid communication with an inner volume of the valve. Some water flowing in the water supply line is diverted through the water circulation pipe and circulates in the valve. The water that is diverted through the water circulation pipe and circulates in the valve has a sufficient flow to prevent freezing and/or water stagnation in the valve.

Abstract: A coupler assembly includes a fluid fitting formed with a first bore at one end thereof and a second bore at an opposite end thereof, both of the bores being formed with female threads. A fluid adaptor includes a neck portion ending in a terminal portion larger in diameter than the neck portion. A fitting ring secures the fluid adaptor to the fitting. The fitting ring includes a split ring that fits over the terminal portion. The fitting ring is formed with a male thread, which mates with the female thread of the second bore of the fitting. The fitting ring has a first inner portion with a flat annular shape and a second inner portion with a curved annular shape.

Abstract: A fluid device housing includes a lower fluid device housing portion and an upper fluid device housing portion each formed with mating members. Each of the mating members of the lower fluid device housing portion mate with a corresponding mating member of the upper fluid device housing portion to form an inclined channel. A connector member is arranged to fit at least partially around peripheries of the lower and upper fluid device housing portions. The connector member includes lugs that are received in the inclined channels.