Valve structure comprising a valve body, pilot valve within the balve body, a poppet valve having axially opposite ends operably associated with the valve body and pilot valve for actuation in response to actuation of the pilot valve and having check valve means positioned axially therein through which a container to which the valve structure is secured is filled with a material in a direction from the pilot valve and through the poppet valve for sealing the poppet valve, said poppet valve being cylindrical and including an opening extending axially therethrough having three separate internal diameters,Water Pump Control Valvess said check valve means including a valve seat member positioned in the largest diameter portion of the axial opening through the poppet valve, a check valve in the central portion of the axial opening through the poppet valve, spring biasing means urging the check valve into a closed position against the valve seat member, means forming a pressure chamber between the poppet valve and pilot valve in conjunction with the valve body to receive said material for sealing the poppet valve, and a bleed orifice through the valve seat member opening into the pressure chamber and bypassing the check valve means for equalizing pressure on opposite sides of the poppet valve with the pilot valve closed without slowing operation of the poppet valve when the pilot valve is opened,
means for securing the valve structure to a container to be evacuated on actuation of the poppet valve including a valve seat for receiving the poppet valve to seal the container, a slightly pivotal poppet valve guide sleeve positioned between the poppet valve and valve body for receiving the poppet valve and guiding its movement between the means for securing the valve structure to the container and the valve body to ensure proper seating of the poppet valve on the poppet valve seat, WATER POWER CONTROL VALVEa manifold surrounding the poppet valve receiving the sleeve in one end thereof at the valve body and receiving the securing means in the other end thereof through which material from the container is discharged on opening of the poppet valve by opening the pilot valve and expelling the material in said pressure chamber through said pilot valve, means securing the valve body, guide sleeve, poppet valve, Hydraulic control valves securing means and manifold together and means for actuating the pilot valve operably associated with the pilot valve.

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2011-12-08

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