1. Compact size: The 20cm wide base Roll Up Stand is compact in size and can be easily transported from one place to another.
2. Lightweight: The roll up stand is lightweight and can be carried by a single person.
3. Easy to assemble: The roll up stand is easy to assemble and can be set up in a matter of minutes.
4. Durable: The roll up stand is made of high-quality materials that make it durable and long-lasting.
5. Retractable banner: The roll up stand comes with a retractable banner that can be easily pulled up and down.
6. High-quality graphics: The roll up stand is designed to display high-quality graphics that are eye-catching and attractive.
7. Adjustable height: The roll up stand comes with an adjustable height feature that allows you to adjust the height of the banner as per your requirement.
8. Stable base: The roll up stand has a stable base that ensures that it does not tip over or fall down.
9. Easy to store: The roll up stand can be easily stored in a compact space when not in use.
10. Versatile: The roll up stand can be used for a variety of purposes such as trade shows, exhibitions, conferences, and events.
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To this end, the center uses a conical design, using a surfacing alloy material at the seal between the valve core and the valve seat, which has strong erosion resistance and can ensure the sealing of the valve. The valve transmission system is sealed with a step-down technology to ensure flexible valve adjustment. Tests show that the valve has the characteristics of high adjustment accuracy of mother liquid, convenient operation in the field and high viscosity retention rate. When the opening of the regulating valve is fully open, 2/3, 1/2, 1/4, the viscosity retention rate is above 98%. At present, the regulating valve has been declared a national patent.
Successfully developed balanced low shear control valve in Shengli Oilfield
The Sancai Center of Gudong Farm in Shengli Oilfield recently successfully developed a balanced low-shear cut-off regulating valve, which makes it possible for oilfield injection pumps to simultaneously inject multiple wells. Since the polymer is subject to large loss of mechanical shear viscosity, it is required that the regulating ball valve must be fully open or fully closed when the polymer medium is transported, otherwise large polymer shear will be caused, so usually the injection pump can only give one injection well at a time. A polymer mother liquor is provided.