Fluid valve

A valve comprising:

• a cylindrical housing;
• a generally cylindrical support element disposed within the housing, the support element having a first end extending longitudinally to an opposing second end, the support element including a first channel extending from the first end towards the second end and terminating at a first port opening onto an outer surface of the support element, the support element further including a second channel extending from the second end towards the first end and terminating at a second port opening onto the outer surface;
• a tubular flexible sleeve disposed within the housing and having one end coupled with the outer surface of the support element, the flexible sleeve extending over the first port and the second port to an opposing end coupled with the outer surface of the support element, an interior surface of the flexible sleeve and the outer surface of the support element bounding an annular region in fluid communication with each of the first and second ports;
• a piston disposed within the housing and having an engagement end and an opposing end, the piston having a position wherein the first port is open, the piston movable to another position wherein the engagement end engages an outer surface of the flexible sleeve in a region proximate the first port and compresses the flexible sleeve against the support element to seal the first port;
• and
• a biasing element engaged with the opposing end of the piston to bias the piston towards said another position.