Patent ID: 8434521

Claim:
A valve unit ( 120 ) being characterized by: a valve body ( 121 ); at least two fasteners ( 128 ) adapted for affixing the valve body ( 121 ) to a base; at least two fastener grooves ( 125 ) formed in at least two sides of the valve body ( 121 ), wherein the at least two corresponding fasteners ( 128 ) rest in the at least two fastener grooves ( 125 ) and wherein the at least two fastener grooves ( 125 ) are configured to form at least two essentially closed bores when the valve unit ( 120 ) is located adjacent a second value unit ( 120 ) and a third valve unit ( 120 ); a fastener link ( 100 ) comprising at least two enlarged ends ( 105 ), at least two fastener apertures ( 103 ) formed in the at least two enlarged ends ( 105 ), and a central link ( 106 ) that extends between and joins the at least two enlarged ends ( 105 ), with the at least two fasteners ( 128 ) passing through the at least two fastener apertures ( 103 ) and with the fasteners link ( 100 ) holding the at least two fasteners ( 128 ) substantially in the at least two grooves ( 125 ); and a corresponding fastener link depression ( 122 ) formed in the valve body ( 121 ) and shaped to substantially receive the fastener link ( 100 ), with the two fasteners ( 128 ) holding the fastener link ( 100 ) in the fastener link depression ( 122 ).