Control valve assembly

A control valve assembly for controlling fluid flow in a flowline, comprising:

• a housing adapted to be mounted with the flowline;
• a normally operative flow control means and a movable element mounted substantially within said housing forming a first flow path to allow the passage of fluid from the flowline through said housing;
• said normally operative flow control means normally controlling flow through said first flow path and including a valve capsule removably disposed substantially within said movable element;
• safety means with said movable element and in communication with said first flow path for releasing fluid pressure trapped in said first flow path between said movable element and said housing prior to removal of said valve capsule;
• said movable element being for controlling flow through said first flow path independently of said normally operative flow control means;
• and,
• said movable element having a second flow path formed therein to allow the passage of fluid from the flowline through said housing as desired.

A control valve assembly for controlling fluid flow in a flowline, comprising:

• a housing adapted to be mounted with the flowline;
• a normally operative flow control means and a movable element mounted substantially within said housing forming a first flow path to allow the passage of fluid from the flowline through said housing;
• said normally operative flow control means normally controlling flow through said first flow path and including:
• valve means for regulating flow within said first flow path;
• and,
• a valve capsule removably disposed substantially within said movable element for receiving said valve means therein;
• said movable element being for controlling flow through said first flow path independently of said valve means;
• said movable element having a second flow path formed therein to allow the passage of fluid from the flowline through said housing as desired;
• and,
• said valve capsule being removable from said movable element when flow through said first flow path is blocked by said movable element while fluid flow through said second flow path may continue as desired.

A control valve assembly for controlling fluid flow in a flowline, comprising:

• a housing adapted to be mounted with the flowline;
• valve means, a valve capsule, and a rotatable element mounted substantially within said housing for providing a first flow path to allow the passage of fluid from the flowline through said housing;
• said valve means normally controlling flow through said first flow path;
• said valve capsule removably disposed substantially within said rotatable element for receiving said valve means therein;
• said rotatable element for controlling flow through said first flow path independent of said vlave means;
• said rotatable element having a second flow path formed therein and in communication with the flowline to allow passage of the fluid from the flowline through said housing as desired;
• said rotatable element being movable between a first position wherein fluid flows through said first flow path and a second position wherein fluid does not flow through said first flow path;
• and,
• said valve capsule being removable from said rotatable element when flow through said first flow path is blocked by said rotatable element while fluid flow through said second flow path may continue as desired.

A bypass apparatus adapted to be mounted in a valve housing having a valve member therein for controlling fluid flow in a flowline communicating with the valve housing, comprising:

• a rotatable element adapted to be mounted substantially within the valve housing;
• a valve capsule removably disposed substantially within said rotatable element;
• said rotatable element, said valve capsule, and the valve member forming the first flow path for allowing passage of fluid between the flowline and the valve housing when said rotatable element is mounted with the valve housing;
• said valve capsule receiving the valve member therein for normally regulating flow within the first flow path;
• said rotatable element for controlling flow through the first flow path independent of the valve member when said rotatable element is mounted with the valve housing;
• said rotatable element having a second flow path formed therein and adapted to communicate with the flowline when mounted with the valve housing to allow passage of the fluid from the flowline through the valve housing, as desired;
• said rotatable element adapted to be mounted for rotational movement in the housing from a first position wherein fluid flows through the first flow path and a second position where fluid does not flow through the first flow path;
• and,
• said valve capsule being removable from said rotatable element when in said second position while permitting fluid flow through said second flow path as desired.

A bypass apparatus adapted to be mounted in a valve housing having a normally operative flow control means for normally controlling fluid flow through a first flow path for controlling fluid flow in a flowline communicating with the valve housing, the normally operative flow control means including valve means for regulating fluid flow, comprising:

• a rotatable element adapted to be mounted substantially within the valve housing;
• said rotatable element cooperating with and adapted to removably receive the normally operative flow control means therein to provide the first flow path to allow passage of fluid between the flowline and the valve housing when said rotatable element is mounted with the valve housing;
• said rotatable element for controlling flow through the first flow path independent of the normally operative flow control means when said rotatable element is mounted with the valve housing;
• said rotatable element having a second flow path formed therein and adapted to communicate with the flowline when mounted with the valve housing to allow passage of the fluid from the flowline through the valve housing, as desired;
• said rotatable element adapted to be mounted for movement in the housing from a first position wherein fluid flows through the first flow path and a second position where fluid does not flow through the first flow path;
• a valve capsule removably mounted within said rotatable element for receiving the valve means therein for regulating flow within the first flow path;
• and,
• means with said rotatable element for removably mounting said valve capsule with said rotatable element when said rotatable element is in said second position.

A control valve assembly for controlling fluid flow in a flowline, comprising:

• a housing adapted to be mounted with the flowline;
• a normally operative flow control means and a front rotatable element mounted substantially within said housing for providing a first flow path to allow the passage of fluid from the flowline through said housing;
• said normally operative flow control means normally controlling flow through said first flow path;
• said front rotatable element for controlling flow through said first flow path independently of said normally operative flow control means and having:
• a body portion having said first flow path formed therewith and adapted for receiving said normally operative flow control means therein;
• a shaft portion extending from said body portion through said housing;
• a rear rotatable element having a second flow path formed therein and in communication with the flowline to allow passage of the fluid from the flowline through said housing as desired;
• said rear rotatable element being disposed about said shaft portion of said front rotatable element substantially within said housing;
• and,
• said front rotatable element being movable between a first position wherein fluid flows through said first flow path and a second position wherein fluid does not flow through said first flow path.

A bypass apparatus adapted to be mounted in a valve housing having a normally operative flow control means for normally controlling flow through a first flow path for controlling fluid flow in a flowline communicating with the valve housing, comprising:

• a front rotatable element adapted to be mounted substantially within the valve housing;
• said front rotatable element cooperating with and adapted to receive the normally operative flow control means therein to provide the first flow path to allow passage of fluid between the flowline and the valve housing;
• said front rotatable element for controlling flow through the first flow path independently of the normally operative flow control means when said front rotatable element is mounted with the valve housing;
• said front rotatable element having a body portion having a part of the first flow path formed therein and adapted to receive the normally operative flow control means therein;
• a rear rotatable element having a second flow path formed therein and adapted to communicate with the flowline when mounted with the valve housing to allow passage of the fluid from the flowline through the valve housing as desired;
• and,
• said front rotatable element being movable between the first position wherein fluid flows through the first flow path and a second position wherein fluid does not flow through the first flow path.