Abstract: A valve connection array for mounting at a cabinet wall in a sealed cabinet for disposing a plurality of valve connection blocks in at least one row is disclosed. Each valve connection block includes a valve connection portion on a front surface for individually connecting a valve and associated connections ports on a rear surface for connecting pressurized medium conduits. At least one row of valve connection blocks define between opposite side surfaces thereof at least one inlet port and at least one outlet port for providing common inlet and outlet ports between juxtaposed valve connection blocks. The blocks include means for mounting the blocks in said row with said sides sealingly juxtaposed for defining said common inlet and outlet ports between blocks and with said blocks defining a common flat surface area substantially in the form of a rectangle around said row.