Question
is there two types of hudraulic valves if so how do i tell the difference prob is i replaced the hydro valves and actuator blocks now all the valves stick on hooked all the lines up right one at a time loosing my mind please help valves are 250 series

Answer
Hey Mike, I hope this helps. What I would suggest, is that you check the direction of flow. The valve can only be installed in one direction. Look for an arrow on the valve. The pressure side should be on the intake side, and the laterals should be on the discharge side(normally where the solenoid sits). If they're installed backwards, they would stay on all the time. Let me know if I can help you out anymore, thanks and have a great day.