Marshall, Gerstein & Borun LLP
Spring seat for an internal valve
An internal valve includes a valve body, a valve stem, a poppet valve, and a bleed valve. The bleed valve includes a body with a bore. A spring seat fits within the bore and is coupled to the valve stem, and includes a guide sized to receive the valve stem and a flow aperture. The flow aperture defines a connecting bleed path that fluidly connects a bleed flow path and a bleed outlet. The valve stem shifts from a first position where the poppet valve and the bleed valve are closed, to a second position where the bleed valve is open and the poppet valve is closed, and a third position where the poppet valve is open and the bleed valve is closed. A spring disposed in the bore bears against the spring seat and is arranged to close the poppet valve and open the bleed valve.
EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
F F F F F
F16K F16K F16K F16K F16K
inventional inventional inventional inventional inventional
FeiFei Jing Li
Ji Chen Li