API 7K Mud Pump Valve Assy. -Valve Body and Seat Product description:
The Material is 20GrNiMo,20GrMnTi forging steel,carburzing and quenching,thickness is 15.-1.8mm,hardness is HRC58-62,and the hard ness of the core is HRC27-33.
The 55° angle and screw thread of the valve have carburized protection,and the whole is phosphorated.The specification of valve are API5#-8#.
The stem guided valve features an extra wide metal to metal seal on the valve flange.The serrated upper surface on the valve gives a longer non-breathing seal between valve body and insert while the rigid seat cross-arms give greater strength and positve sealing.
Full Open Valve and Seat:
The valve comes with full open seat features four guide wings. They are either inertia welded to the valve body or uniformly forged with valve body. The urethane insert can be easily snapped on.
3 Web / 4 Web design Valve and Seat:
The 3 web / 4 web seat comes with stem guided valve. The urethane insert is tightened by steel plate and nut. It can be easily replaced with minimum down time. They offer long lasting service life under harsh service conditions.
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