The JVA 2440 is an actuator, not a valve:
http://www.aqua-man.com/itemMatrix_a...roupCode=M2513
I'm assuming you have some sort of Jandy valve body underneath, like one of these:
http://www.zodiacpoolsystems.com/Products/Valves.aspx
The manuals and parts lists there may help you ID the valve you have and even the part you need. But, once you ID the valve, if you can't work out what you need, post back and we'll try to help once we know what you have.
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