OEE offers 5 different styles of valves & seats to fit your drilling needs, suiting to almost all popular mud pumps in the world. They are Stem-guided valve & Tri-arm seat, Stem-guided valve & Cross-arm seat, Tri-wing guided valve & Full open seat, Innovative unibody Four-wing guided valve & Full open seat and The unibody forged Four-wing guided valve & Full open seat.
Stem-guided valve &Tri-arm seat features greater fluid flow than four-arm seats, as well as it 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 positive sealing.
The strong, thick, valve knock off nut holds the insert tightly reducing flex and breathing which lessens the chance of foreign matter getting between valve and insert.