Abstract: A flow control device includes a valve body, a first port disposed on the valve body, a second port disposed on the valve body, a gate disposed within the valve body and configured to control a flow of a fluid between the first port and the second port, and a seat disposed between the gate and the valve body, the seat including a first surface configured to form a circumferential seal with the valve body and a second surface configured to form a face seal with the gate. A method includes receiving, by a sealing assembly forming a circumferential seal between a seat and a valve body, a first force from a collar disposed on the seat in response to a first movement of a gate, and moving, in response to receiving the first force, the sealing assembly in a first direction of the first force.

Abstract: A flow control device includes a valve body, a first port disposed on the valve body, a second port disposed on the valve inbody, a gate disposed within the valve body and configured to control a flow of a fluid between the first port and the second port, and a seat disposed between the gate and the valve body, the seat including a first surface configured to form a circumferential seal with the valve body and a second surface configured to form a face seal with the gate. A method includes receiving, by a sealing assembly forming a circumferential seal between a seat and a valve body, a first force from a collar disposed on the seat in response to a first movement of a gate, and moving, in response to receiving the first force, the sealing assembly in a first direction of the first force.

Abstract: A portable containment vessel to perform a pressure test to a test specimen includes a base skid, a ballistic outer enclosure connected to the base skid and comprising a plurality of walls, a door, and a lock to maintain the door in a closed position, a sample tray configured to support the test specimen, wherein the sample tray is operable through a doorway of the ballistic outer enclosure between a retracted position and an extended position, a containment fluid to surround the test specimen while a pressurized test fluid is applied to the test specimen, and a sensor to indicate a failure of the pressure test.

Abstract: A portable containment vessel to perform a pressure test to a test specimen includes a base skid, a ballistic outer enclosure connected to the base skid and comprising a plurality of walls, a door, and a lock to maintain the door in a closed position, a sample tray configured to support the test specimen, wherein the sample tray is operable through a doorway of the ballistic outer enclosure between a retracted position and an extended position, a containment fluid to surround the test specimen while a pressurized test fluid is applied to the test specimen, and a sensor to indicate a failure of the pressure test.

Abstract: A straightening apparatus for use in straightening the bent portions of vehicles including a support frame in which the vehicle is positionable; a pusher unit adjustably mounted on the support frame and adapted to engage the bent portion of the vehicle and applying a straightening force thereto in a first direction; and a backup unit adjustably mounted on the support frame and adapted to engage the vehicle in the vicinity of and in opposition to the pusher unit and apply backup forces to the vehicle oriented generally parallel to the straightening force and in a second direction opposite to the first direction so that the bent portion of the vehicle can be straightened back to its original shape without deformation of the unbent portions of the vehicle.