| http://www.w3.org/ns/prov#value | - e end thereof in opposition to said valve seat, said valve head being arranged with respect to said valve seat such that the pressure receiving area of said valve changes when said relief valve is open; a valve body having a bore therein for slidably receiving said valve head; a cap secured to said valve body, said cap including a central extension having a bore therein for receiving said valve st
|
