Check valve effects seal between valve core and body by fluid pressure. The higher the fluid pressure,the better seal effected. The cavity could contain pressure in pipes all the time.
TQ series casing tong is used to make up and break out for casing operation in oil field. It has greatly reduced the labor of worker, enhanced connection quality of thread and diminished accidents in inappropriate casing operation.
YDZ-J series hydraulic power unit mainly provides power source for hydraulic equipment. It’s with simple structure and low price, suitable for short time working, ambient temperature between 0℃ and 25℃. Since no radiator, it’s not suitable for long-time and continuous work.
Amphibious excavator is a multi-purpose excavator suitable for land, shallow water and deep water working environment. Its emergence solves the problem of excavator can not enter the water operation, but also let the excavator to achieve excavation, floating navigation, dredging, greatly improve the work efficiency.
ZQ series drill pipe tong is a mechanical tools driven by hydraulic power, and clamped by pneumatic power. It is widely used for make up and break out operation in the drilling wells. It’s also used to connect square drilling rod and handle drilling accidents.
Tubing head is usually a spool with both flanged ends,which is set on the top flange of casing head to hang tubing hanger and seal the annular space between the tubing string and oi-layer casing and which consists of tubing head spool and tubing hanger.
Rod end with welding shank is made of rod end housing and a radial spherical plain bearing GE..E or GE,,ES, rod end housing is made of weldable steel, with dowel pin in shank bottom and welding chamfer; it can be relubricated by a nipple or a hole.
Hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and makes a straight line reciproc(or swing movement). It is simple in structure and reliable in working, so it is widely used in hydraulic systems of various machinery.
Pontoon undercarriage is the important component of amphibious excavator. Its emergence solves the problem of excavator can not enter the water operation, but also let the excavator to achieve excavation, floating navigation, dredging, greatly improve the work efficiency.
CSD550 dredger provide a comfortable working environment and simple operation for the lake mud dredging. A standard design diesel-powered conventional dredge with 15m dredging depth capability 4000m3/h flow capacity, is proven successful and popular in the middle east market.
Annular BOP is an important part of well control equipment. It is mainly used to control wellhead pressure in drilling, work over and oil test operations to effectively prevent blowout accidents and realize safe construction. It is usually used with ram BOP and also used alone.
Crawler Undercarriages is an important part of the machine, which plays a supporting and walking role for the whole device. It is composed of walking motor, crawler assembly, walking frame, drive wheel, guide wheel, support heavy wheel, sprocket wheel, tightening mechanism and so on. It has the characteristics of high power, small grounding than pressure and good passage. Widely used in excavator, crawler crane, heading machine etc.
