K22J-W系列是二位二通管接截止式换向阀。该阀结构合理，动作可靠，维修方便，尤其适用于较为恶劣的工作环境。分电控和气控两种。
K22J-W series is pipe ?tting shut-off directional valves 2/2 way. Streamlined structure, reliable action easy of maintenance, and especially suited to tough work conditions. Two types: electrically controlled and pneumatical controlled..