Q11FI two-piece ball valve
Other Products
I. Introduction:
The Q11F two-piece ball valve is a relatively new type of ball valve, featuring unique structural characteristics: no friction during operation, minimal seal wear, and low opening/closing torque. This reduces the required actuator size. When paired with a multi-turn electric actuator, it enables medium regulation and tight shut-off. It is widely used in industrial sectors such as petroleum, chemical engineering, and urban water supply and drainage, where strict shut-off is required. The working principle of the Q11F two-piece ball valve is to rotate the valve core to open or close the valve. Ball valves are lightweight and compact, can be manufactured in large diameters, have reliable sealing, simple structure, and easy maintenance. The sealing surface and spherical surface are usually in a closed state, making them less susceptible to erosion by the medium, thus finding extensive applications across various industries. Based on the position of their flow passage, Q11F two-piece ball valves are categorized into straight-through, three-way, and right-angle types. The latter two types are used for medium distribution and flow direction adjustment.
II. Product Features:
1. Low fluid resistance, with a resistance coefficient equal to that of a pipe segment of the same length.
2. Simple structure, small size, and light weight.
3. Tight and reliable sealing. Currently, plastic is widely used as the sealing surface material for ball valves, ensuring excellent sealing performance, and they are also widely applied in vacuum systems.
4. Easy to operate, with rapid opening and closing—only a 90° rotation is needed from fully open to fully closed, facilitating remote control.
5. Easy maintenance. The ball valve has a simple structure, and the sealing rings are generally movable, making disassembly and replacement convenient.
6. When fully open or fully closed, the sealing surfaces of the sphere and valve seat are isolated from the medium, so medium passage will not cause erosion of the valve's sealing surfaces.
7. Wide applicability, with passage diameters ranging from a few millimeters to several meters, suitable for use from high vacuum to high pressure. When the sphere rotates 90°, the inlet and outlet ports fully present the spherical surface, thereby blocking the flow.
III. Structural Features:
1. No friction during opening and closing. This function completely solves the problem of traditional valves where sealing is affected by friction between sealing surfaces.
2. Top-mounted structure. Valves installed on pipelines can be directly inspected and maintained online, effectively reducing unit downtime and lowering costs.
3. Single valve seat design. Eliminates the problem of safety hazards caused by abnormal pressure rise in the valve cavity medium.
4. Low-torque design. The specially designed valve stem only requires a small handwheel to easily open and close the valve.
5. Wedge-shaped sealing structure. The valve uses mechanical force from the valve stem to wedge the sphere tightly against the valve seat for sealing, ensuring the sealing performance is not affected by changes in pipeline pressure difference, and providing reliable sealing under all working conditions.
6. Self-cleaning structure for sealing surfaces. When the sphere separates from the valve seat, the fluid in the pipeline flows evenly along the sphere's sealing surface at 360°, which not only eliminates local erosion of the valve seat by high-speed fluid but also flushes away accumulated substances on the sealing surface, achieving the purpose of self-cleaning.
IV. Performance Parameters:
Model | Nominal Pressure PN (MPa) | Test Pressure ps (MPa) | Working Pressure p (MPa) | Working Temperature (℃) | Applicable Medium | ||
Shell | Seal (Liquid) | Seal (Gas) | |||||
Q11F-16 Q11F-16C | 1.6 | 2.4 | 1.76 | 0.6 | 1.6 | 150 | Water, steam, oil products |
Q11F-16P | Nitric acid | ||||||
Q11F-16R | Acetic acid | ||||||
Q11F-16Ni | Alkali liquid, brine, seawater, etc. | ||||||
Q11F-16Q | Water, steam, oil products | ||||||
Q11F-40 | 4.0 | 6.0 | 4.4 | 0.6 | 4.0 | Water, steam, oil products | |
Q11F-40P | Nitric acid | ||||||
Q11F-40R | Acetic acid | ||||||
| Industry Category | Machinery & Equipment/Valves/Ball Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | Q11FI |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
