Pilot operated check valves type ADRL, AGRL, AGRLESize for AGRL and AGRLE:10 20 32 atos Pilot operated check valves type ADRL, AGRL, AGRLE in-line mounting, port size from G 3/8” to G 1 1/4” subplate mounting, ISO 5781 size 10, 20 and 32 Table C450-10/E ADRL are pilot operated (port X) check v ...