In one instance, a dynamic slab gate valve is disclosed for use in controlling fluid flow through pipelines and other tubulars, wherein the dynamic slab gate valve has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate. Improved seals are provided. Other valves are disclosed herein.

A dynamic slab gate valve for use in controlling fluid flow through pipelines and other tubulars has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate.

A dynamic slab gate valve for use in controlling fluid flow through pipelines and other tubulars has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate.

A gate valve includes a valve body having a through-bore and a gate cavity that are substantially orthogonal to each other, a gate disposed within the gate cavity operable to translate along a length of the gate cavity to move between an open position and a closed position, an annular seat pocket formed within the valve body proximate to the intersection of the through-bore and the gate cavity and concentric with the through-bore, an annular seat disposed within the annular seat pocket, a skirt disposed within the gate cavity and in contact with the annular seat and in contact with the surface of the gate, and a plurality of skirt energizers coupled to the skirt to provide a biasing force for biasing the skirt towards the gate. A substantial fluid seal is formed between the surface of the seat and the surface of the gate when the gate is closed.

A dynamic slab gate valve for use in controlling fluid flow through pipelines and other tubulars has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate.

A dynamic slab gate valve for use in controlling fluid flow through pipelines and other tubulars has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate.

A gate valve comprises a first bore having a first seat pocket and a second bore having a second seat pocket. First and second valve seats are configured to be positioned in the first and second seat pockets, respectively. A gate of the gate valve comprises a first side for sealingly engaging with an inner surface of the first valve seat and a second side for sealingly engaging with an inner surface of the second valve seat. The gate is moveable between an open position and a closed position. First and second valve seats comprise biasing mechanisms for providing a sealing force between the inner surface of the valve seats and the gate. The gate valve may further comprise void plugs for reducing space within the internal cavity of the valve. Shims may be used to decrease the clearance at the gate to seat sealing surfaces.

A gate valve comprises a first bore having a first seat pocket and a second bore having a second seat pocket. First and second valve seats are configured to be positioned in the first and second seat pockets, respectively. A gate of the gate valve comprises a first side for sealingly engaging with an inner surface of the first valve seat and a second side for sealingly engaging with an inner surface of the second valve seat. The gate is moveable between an open position and a closed position. First and second valve seats comprise biasing mechanisms for providing a sealing force between the inner surface of the valve seats and the gate. The gate valve may further comprise void plugs for reducing space within the internal cavity of the valve. Shims may be used to decrease the clearance at the gate to seat sealing surfaces.

In one instance, a dynamic slab gate valve is disclosed for use in controlling fluid flow through pipelines and other tubulars, wherein the dynamic slab gate valve has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate. Improved seals are provided. Other valves are disclosed herein.

In one instance, a dynamic slab gate valve is disclosed for use in controlling fluid flow through pipelines and other tubulars, wherein the dynamic slab gate valve has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate. Improved seals are provided. Other valves are disclosed herein.