Engineered Controls International, LLC

Guangbin Cao

Jeffrey S Howard

Chad Thomas

Mark Kendrick Hamm

Patrick N Morefield

Michael T Glavin

Shut-off valves for cryogenic fluids are disclosed herein. An example valve includes a valve body defining a flow path and a valve seat, a bonnet coupled to the valve body and defining a bonnet chamber, a plug, and a stem coupled to the plug. The stem is configured to slide to cause the plug to slide. The valve includes a spindle that includes external threads. The spindle is configured to move along a longitudinal axis of the bonnet as the spindle is rotated about the longitudinal axis via the external threads to cause the stem to slide linearly along the longitudinal axis. The valve includes a pivot ball positioned between and operatively coupled to the stem and the spindle. The pivot ball is configured to translate linear and rotational movement of the spindle into linear movement of the stem and the plug.

Cryogenic fluid shut-off valve

Pressure-relief valves are disclosed. A valve for conveying fluid includes a body, a valve seat, and a valve seat disc. The body includes a plurality of inner surfaces. The valve seat includes a curved outer surface. A first portion of the curved outer surface is configured to contact at least one of the plurality of inner surfaces of the body to secure the valve seat in the body. The valve seat disc is configured to move between a closed position at which the valve seat disc sealingly engages a second outer portion of the curved outer surface of the valve seat and an open position at which the valve seat disc is disengaged from the curved outer surface of the valve seat.

Pressure relief valve

Cryogenic solenoid valves are disclosed. A solenoid valve assembly includes a valve body that includes a valve seat. The solenoid valve assembly includes a cartridge mounted to the valve body, a plunger slidably received by the cartridge, and a seat disc holder slidably received by the cartridge. The solenoid valve assembly includes a retainer attached to the seat disc holder such that the retainer and the seat disc holder form a plunger head receiving cavity that houses a head of the plunger. The solenoid valve assembly includes a seat disc attached to the seat disc holder. The solenoid valve assembly includes an electromagnetic coil energizable to cause the solenoid valve assembly to move from a closed configuration in which the seat disc sealingly engages the valve seat and an open configuration in which the seat disc is disengaged from the valve seat.

Cryogenic cylinder control system, globe valve, and solenoid valve

Cryogenic valves are disclosed. A valve for includes a valve body, a valve seat, a gland nut coupled to the valve body, and a lower spindle threadably engaged to the valve body. The lower spindle defines a first bore. The valve includes a seat disc mounted to the lower spindle and configured to engage the valve seat in a closed configuration and be disengaged from the valve seat in an open configuration. The valve includes an upper spindle defining a spring bore. A portion of the upper spindle is received in the first bore to matingly engage the upper spindle to the lower spindle such that rotation of the upper spindle causes rotation of the lower spindle. The valve includes a spring that is at least partially disposed in the spring bore of the upper spindle and is configured to bias the upper spindle to sealingly engage the gland nut.

A combination regulator valve for conveying fluid is disclosed. The valve comprises a bonnet, a body, a flexible diaphragm, a first spring, and a spindle unit. The spindle unit comprises a pin, a first seat disc, and a seat screw. The bonnet is secured to the body. The flexible diaphragm is compressed between the bonnet and the body. The first spring is disposed in the bonnet. The spindle unit is disposed in the body. The first seat disc is disposed between the pin and the diaphragm. The first seat disc and the pin define a first void. The first spring biases the diaphragm toward the first seat disc. The seat screw is engaged with the body and is slidably engaged with the pin. The seat screw and the pin define a fluid passage in fluid communication with the first void.

Combination regulator valve

A valve for conveying fluid has a closed position and an open position and comprises a body, a valve seat disposed in the body, a holder disposed in the body, and a valve seat disc. The valve seat comprises one or more inner surfaces and an outer surface, and the one or more inner surfaces define an inner void. The valve seat disc is connected to and movable with the holder between a first position in which the valve seat disc sealingly engages the outer surface of the valve seat and a second position in which the valve seat disc is disengaged from the outer surface of the valve seat. The valve is in the closed position when the valve seat disc is in the first position and the valve is in the open position when the valve seat disc is in the second position.

A valve assembly () for use with a valve body () having a valve seat () is disclosed, the valve assembly () comprising: a cartridge () threadably engaged with and extending away from the valve body (); a poppet () slidably engaged with the cartridge (); a plate () engaged with the poppet (); a plunger () slidably engaged with the cartridge () and slidably extending through the plate (); and a retainer () captured between the plate () and a surface of the poppet (), wherein the retainer () is threadably engaged with the plunger (). The valve assembly () can regulate fluid flow.

A receptacle for conveying fluid is disclosed. An example receptacle includes a main body defining an inlet and an outlet, a spring retainer disposed in the main body, a valve seat disposed in the main body, and a poppet configured to slide between a closed position and an open position. The poppet is slidably engaged with the spring retainer between the closed position and the open position and is engaged with the valve seat in the closed position. The example receptacle also includes a spring engaged with the spring retainer and the poppet to bias the poppet to engage the valve seat in the closed position. The spring retainer, the valve seat, the poppet, and the spring are removable from the main body via the inlet without disassembling the main body.

Leak resistant and serviceable receptacle

A receptacle for conveying fluid is disclosed. The receptacle may include a main body, a spring retainer, a valve seat assembly, a poppet, and a spring. The main body defines an inlet and an outlet. The spring retainer is disposed in the main body and removable from the main body via the inlet. The valve seat assembly is disposed in the main body and removable from the main body via the inlet. The poppet is slidably engaged with the spring retainer between a closed position and an open position and is engageable with the valve seat assembly. The spring is engaged with the spring retainer and with the poppet to urge the poppet against the valve seat assembly.

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Shanghai, China

Guangbin Cao