API 6A Check valve which has been widely applied on oilfield kill manifolds. It also can be called one way valve.
◆Sealing is energized by flow fluid pressure , sealing performance gets
better while pressure increasing .
◆Integral forged body with fine mechanical properties.
◆Hard faced sealing surface and sulfur-resistant core material assure fine
performance of wear-resistant and corrosion-resistant.
◆Valve shall successfully complete hydro test prior to delivery for safe
performance.