Valves and methods of access

A valve comprising:

• a valve body including:
• a first end connection with a first flow channel therethrough and a second end connection with a second flow channel therethrough;
• the first end connection spaced apart from the second end connection, each end connection connectible to a flowline through which fluid flows;
• and
• a center section connected to and between the first end connection and the second end connection, the center section having a center bore having a center channel, the center channel in fluid communication with the first flow channel and the second flow channel, fluid is flowable to and through the first channel, then to and through the center channel and then to and through the second flow channel to exit from the valve;
• the center section disconnectible from the first and second end connections and selectively removable from between the first and second end connections, while the first and second end connections are connected to the flowline;
• rotatably located in the center bore is a floating ball;
• selectively alignable with the center channel to permit fluid flow through the valve;
• the center section further comprising two spaced-apart valve seats within the center bore comprising an upstream seat having a smooth outer circumference, the upstream seat spaced apart from a downstream seat;
• an outermost diameter of the downstream seat is larger than an outermost diameter of the upstream seat;
• the floating ball positioned between the opposing valve seats;
• each valve seat comprising a sealing seat for the floating ball;
• a spring biased against the upstream seat thereby urging the upstream seat against the floating ball and the floating ball against the downstream seat;
• and
• the center section with the floating ball and the valve seats within the center section selectively removable from between the first and second end connections while the first and second end connections are fluidly connected to the flowline.