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Parallel Expanding Gate Valve
This unidirectional expanding gate gives an extraordinarily high mechanical seating seal force that acts simultaneously against both seats. The seating force is not affected by line pressure fluctuations or vibrations.
Solid Slab Gate Valve
This design is made for demanding applications including high pressure critical service choke and kill manifolds, and for use as a safety shut-off valve operated by a hydraulic or pneumatic actuator. It incorporates a bidirectional design with a floating gate that moves parallel to the seats and effects a tight seal under differential line pressure. The non-rising stem has a back-seating feature which allows the stem bearings or packing to be replaced under pressure.
Split Gate Valve
This bidirectional valve features a metal-to-metal seal between gates and seats, and seats to body. The parallel gates allow the stem to be left unstressed in either the open or closed position. Fully skirted seats provide continuous protection of gate sealing surfaces. A back-seating feature allows replacement of stem bearings or packing under pressure.
Positive Choke Valve
Ceramic or hard alloy types are available.
High abrasion resistance, high temp resistance, high corrosion resistance, and long life time.
Metal to metal sealing design enables good performance reliability.
Adjustable Choke Valve
Special high corrosion material and technology are employed for stem and seat.
High abrasion resistance, high corrosion resistance, and long life time.
Pressure balanced sealing ring at external sleeve reduces switch torque.
Design of lock on external sleeve ensures stability.
Check Valve
check valves are used to isolate pressure pumping equipment from high-pressure treating fluids during fracturing applications.
Offered in three primary models, these rugged valves seal against a complete range of pressure pumping fluids at pressures up to 20,000 psi CWP. Valves are available in 1½ to 4 inch bore sizes for standard and reverse flow applications.
Sour gas models are available.