Inline repairable valves

A valve, comprising:

• a body having a first end, a second end opposite the first end, and a throughbore extending from the first end to the second end along a central axis;
• a valve element positioned within the throughbore;
• a seal end cap having an inner surface defining a throughbore of the body, the seal end cap including a flange and a neck along both of which the inner surface extends, wherein the neck is inserted into the throughbore from the second end of the body to engage with the valve element;
• a hub end cap having a throughbore and including a mounting flange having an annular mounting surface that defines an end of the hub end cap, wherein the mounting surface is configured to be welded to a first pipe, and wherein the mounting flange of the hub end cap is engaged with the flange of the seal end cap;
• and
• a first plurality of fasteners that extend through the mounting flange of the hub end cap, and terminate within the flange of the seal end cap, the plurality of first fasteners configured to releasably couple the body to the first pipe;
• wherein the throughbore of the seal end cap and the throughbore of the hub end cap each form at least a portion of a flowpath along which fluid is directed between opposing ends of the valve whereby the inner surface extending along both the flange and the neck of the seal end cap is in fluid contact with the flowpath.

A valve, comprising:

• a body having a first end, a second end opposite the first end, and a throughbore extending from the first end to the second end along a central axis of the body;
• a valve element positioned within the throughbore for selectably isolating fluid flow through the throughbore;
• a seal end cap having a throughbore and including a flange and a neck, wherein the neck is inserted into the throughbore of the body from the second end of the body to engage with the valve element;
• a hub end cap having a throughbore and including a mounting flange engaged with the flange of the seal end cap, wherein the throughbore of the seal end cap and the throughbore of the hub end cap each form at least a portion of a flowpath along which fluid is directed between opposing ends of the valve;
• a plurality of fasteners that extend through the flange of the seal end cap and terminate in the body to compress the seal end cap against the second end of the body;
• and
• an annular seal member positioned between the seal end cap and the body, wherein the annular seal member is compressed by the plurality of fasteners along the central axis of the body;
• wherein the flange of the seal end cap is engaged with the second end of the body whereby the flange of the seal end cap is compressed between the second end of the body and the mounting flange of hub end cap.