Which way round does a Bailey dump valve go?

[A3QuattroAdam]

I've got a Bailey recirc dump valve but I'm not sure it is the right way round. Does the boost pressure goes in the bottom against the bottom of the piston and the piston moves up to allow it out the side or is it the other way around?

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[<tuffty/>]

Pressure in the side, bottom in the TIP

<tuffty/>

 

[A3QuattroAdam]

Pressure in the side, bottom in the TIP

<tuffty/>

Perfect thanks

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