A valve design including a valve body comprising an aperture through the body is disclosed. The valve includes a shaft secured to a disc with a clamping connection.

A valve design including a valve body comprising an aperture through the body is disclosed. The valve includes a shaft secured to a disc with a clamping connection.

A valve core includes: a core body screwed with a female screw part of a core mounting hole and formed of a seal ring, and a support base including a male screw part and a sleeve part; a shaft part penetrating through the support base; a valve body provided at a tip of the shaft part; an overhang part provided at the sleeve part so as to laterally overhang from a basal end of the sleeve part; a plate part provided at the support base so as to project to a basal end side from the basal end of the sleeve part and having a pair of flat tool abutting surfaces; and a shaft receiving hole penetrating through the plate part. The seal ring has a shape of a ring whose cross-sectional shape is quadrangular and the overhang part and the seal ring abut on each other by their surfaces.

An electric valve includes a valve body component, a transmission component, and a valve needle component. The valve body component includes a valve core sleeve, and the valve core sleeve includes a first inner guide wall. A movable connecting component is in a suspended connection with the transmission component, the movable connecting component includes a connecting body, the connecting body includes a first outer guide wall, the connecting body includes a lower opening portion and an accommodating hole in communication with the lower opening portion, and a hole wall of the accommodating hole includes a second inner guide wall. The valve needle component includes a valve needle, the valve needle includes a second outer guide wall, the second outer guide wall is slidably in clearance fit with the second inner guide wall. A manufacturing method for the electric valve is further disclosed.

The subject innovation relates to a thermally triggered valve assembly that comprises a dual diaphragm subassembly which in turn employs a removeable thermal fuse configured to cause the valve assembly to close upon a predetermined temperature threshold being exceeded.

The subject innovation relates to a thermally triggered valve assembly that comprises a dual diaphragm subassembly which in turn employs a removeable thermal fuse configured to cause the valve assembly to close upon a predetermined temperature threshold being exceeded.

To provide a diaphragm and a diaphragm valve which solve a problem of deterioration of air-tightness due to insufficient tightening of a bolt and damage to the diaphragm due to over-tightening of the bolt, as well as reducing variations in performance such as durability of the diaphragm and simplifying tightening work. A diaphragm is provided with a through hole having a diameter larger than a diameter through which a bolt can be fitly inserted. A bolt insertion cylinder made of metal through which the bolt can be inserted is fitted in the through hole. A height of the bolt insertion cylinder is equal to or less than a height of the through hole.

A pipe cleaning assembly has a connection fixture having a body defining a cavity. A first aperture, opposing second aperture coaxially aligned with the first aperture, first auxiliary aperture, and opposing second auxiliary aperture coaxially aligned with the first auxiliary aperture are in fluid communication with the cavity. A first connection flange extends from and surrounding the first aperture and a second connection flange extends from and surrounding the second aperture. A rotatable bonnet inserted through the second auxiliary aperture and includes a cylindrical wall having an open first end, an end wall at a second end, and a plurality of openings through the wall. An actuator is mounted to the bonnet with an actuator shaft extending through an opening in the end wall. A valve plug is secured to the actuator shaft and positioned within the bonnet.

A pipe cleaning assembly has a connection fixture having a body defining a cavity. A first aperture, opposing second aperture coaxially aligned with the first aperture, first auxiliary aperture, and opposing second auxiliary aperture coaxially aligned with the first auxiliary aperture are in fluid communication with the cavity. A first connection flange extends from and surrounding the first aperture and a second connection flange extends from and surrounding the second aperture. A rotatable bonnet inserted through the second auxiliary aperture and includes a cylindrical wall having an open first end, an end wall at a second end, and a plurality of openings through the wall. An actuator is mounted to the bonnet with an actuator shaft extending through an opening in the end wall. A valve plug is secured to the actuator shaft and positioned within the bonnet.

An electronic expansion valve includes a valve needle lead screw assembly, the valve needle lead screw assembly including a gasket portion, a spring and a lead screw assembly; the lead screw assembly includes a lead screw, the spring is sleeved outside the lead screw; the lead screw assembly includes a lower stop portion and an upper stop portion, the lower stop portion includes a lower flange portion or a main body portion, and the lower stop portion or the main body portion (1562) can abut against the gasket portion. The upper stop portion includes an upper flange portion and/or an upper stop ring, and the upper flange portion and/or the upper stop ring abut against the spring; a lower end of the spring abuts against the gasket portion.