Assertion: valve's surface | /r/CapableOf | face remote end
Facets:
Source sentences:
text: Avalve construction according to claim 3 wherein said chambers and; said diap-hragmsl are of substantially identical size and shape so that the pressure surface areas facing the respective valve seats are, substantially equal; said actuatingmeans including a rod: extending through the remote end of said, one chamber and having a pressure surface facing the said valve seat of said one chamber so that the'pressure surface area facing said valve seat is greater than the pressure surface area facing away from said valve seat; the other end of said valve rod being formed to provide a flat surface facing the remote end of said other chamber whereby the pressure surface area facing the remote end of said chamber is greater than the pressure surface area facing the valve seat thereof.