Tyco Valves & Controls, LP

Pentair Valves & Controls US LP

David L Gambetta

Viet Nguyen

John W Muran

Christopher Eric Cooper

Robert Kent Ohlson

Johnny Ellis

Donald L Devine, Jr

John Muran

Donald Devine

A gate valve includes a pair of opposing housing members, a gate, primary sealing sleeves and a secondary sealing member. The primary sealing sleeves are disposed in each of the housing members. The gate is configured to slidably pass through a transverse gate chamber defined when the housing members are joined together. The secondary sealing member is secured between the housing members and includes at least one passage or aperture configured to allow lubricating fluid to be applied through at least one of the housing members through the secondary sealing member and onto the gate.

Gate valve with lubricated secondary seal

A rotary gate valve includes first and second opposing housing members having coaxial pathways and defining a gate channel when joined together. A gate is positioned within the gate channel when the valve is in a closed position to prevent media from flowing through the pathways and rotationally displaced from the channel when the valve is in an open position to allow media to flow through the pathways. First and second annular primary sealing sleeves are disposed within the first and second housing members and are adapted to sealingly engage each other when the valve is in the open position, and with the gate valve when the valve is in the closed position. A secondary sealing member is disposed around an upper portion of the gate and secured between the housing members above the first and second annular primary sealing sleeves to prevent process media from entering the housing members.

Rotary gate valve with secondary seal

A knife gate valve includes a reinforced valve seat which prevents displacement of the valve seat when the valve is opened and closed. The valve includes a valve body defined by a first and second body halves. The valve halves are assembled to define a flow path, a knife gate channel and a seat channel. A knife gate is disposed between the body halves and is adapted to traverse the gate channel. The knife gate is configured to be in an open position to allow process flow through the valve and a closed position to prevent process flow through the valve. A seat assembly is positioned within the channel guide and is defined by a horizontal segment, a pair of vertical segments and a lower segment. The seat assembly is compressed between the first and second valve body halves. At least one reinforcing plate is disposed within a portion of the horizontal segment, such that the horizontal segment maintains its rigidity when the knife gate traverses the seat assembly.

Valve assembly having a reinforced valve seat

Growing community of inventors

Reno, NV, United States of America

David L Gambetta