Center seal

Cen·ter seal

Center seal
  1. A compound hydraulic valve for regulating the passage of the gas through a set of purifiers so as to cut out each one in turn for the renewal of the lime. (Gas Manuf.)

Center seal
  1. A compound hydraulic valve for regulating the passage of the gas through a set of purifiers so as to cut out each one in turn for the renewal of the lime. (Gas Manuf.)