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Create one account to manage everything you do with Parker, from your shopping preferences to your application access.
Parker offers a large collection of pilot-operated (PO) check valves, which are check valves that can be opened by an external pilot pressure. There are two types of pilot operated check valves: threaded cartridge style and pilot piston style. These pilot valves work best when used in conjunction with a control valve that vents the valve ports to tank when centered.
