Double Support Valve has 3 web & 4 web valve; Full Open Valve has Integral Forged Valve and Friction Welding Valve.
DL offer all types of double4 support valve bodies and seats that conforming API Spec 7K.
They are made of high quality alloy structure steel, through special mechanical process and treat.
The valve body, seat and its nut are manufactured by forged steel.
Four-wing guided valve & Full open seat
we offers two style of Four-wing guided valves and full open seats which feature greater fluid flow through the full open seat. The full open seat provides easier valve maintenance and seat pulling, in valve-over- valve fluid ends.
Innovative unibody Four-wing guided valve & Full open seat valve design eliminates snap rings, plates or keepers providing reduced maintenance by snap-on valve inserts and easy installation. This combination will handle lost circulation material better than most conventional style valves and seats while the seating angle greatly improves flow characteristics and the heavy-duty load bearing capacity greatly improves service life.
The unibody forged Four-wing guided valve Full open seat features greater strength than traditional welded-wing valve. Innovative unibody valve design eliminates snap rings, plates or keepers providing reduced maintenance by snap-on valve inserts and easy installation.