作者: John D. Tricini
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摘要: The diaphragm valve has a body portion with chamber therein. an open top and inlet outlet communicating therewith. seat in the chamber. member is positioned overlying relation arranged to control flow of fluid through A yoke connected within upper axial passageway therethrough. bonnet having therethrough coaxially aligned member. stem for reciprocal movement passageway. assembly between spring urges upwardly against underside valve. packing ring surrounds annular recessed follower overlies portion. bearing plate surrounding abuts Bolt means threadably engaged bores abut apply preselected compressive forces thereto. are transmitted from thereby maintain pressure tight seal member, together ring, prevent expulsion broken components out event excessive build-up