**Product Specifications:**
- **Model No.:** RT-Globe Valve
- **Thread Position of Valve Rod:** Outside Gate Valve
- **Usage:** Flow Regulation
- **Standard:** GB (Chinese National Standard)
- **Application:** Industrial Use
- **Trademark:** BlueSky
- **Transport Package:** Wooden Box
- **Specification:** 2", 3", 4", 5", 6", 7", 8"
- **Origin:** China
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**Low-Temperature Shut-Off Valve Description:**
The low-temperature shut-off valve is a type of valve in which the closing element, known as the valve disc, moves along the centerline of the valve. Depending on the movement type of the disc, the opening of the valve seat changes proportionally with the stroke of the disc. This design allows for precise control over flow regulation due to the direct relationship between the disc position and the opening size.
One of the key advantages of this valve is its relatively short stem stroke, which provides reliable shut-off capabilities. Additionally, because the valve seat opening changes in direct proportion to the stroke, it is highly suitable for flow regulation and throttling applications. This makes it ideal for both shut-off and control functions in various industrial settings.
**Key Features:**
- Compared to other types of valves, the globe valve has a simpler structure, making it easier to manufacture and maintain.
- The sealing surfaces are less prone to wear and abrasion, ensuring good sealing performance. Since there is no relative sliding between the valve disc and the body during operation, the wear is minimal, resulting in a longer service life.
- The valve has a smaller stroke when opening or closing, which reduces the overall height compared to gate valves. However, the structural length is longer than that of a gate valve.
- The torque required to open or close the valve is higher, leading to more effort and longer operation time.
- There is significant fluid resistance due to the tortuous flow path, which increases power consumption.
- For nominal pressures up to 16 MPa, the medium typically flows from below the disc (downstream). For pressures above 20 MPa, the flow direction is usually reversed (upstream), which helps improve the sealing effect.
- It is important to note that the flow direction cannot be changed once the valve is installed, as the medium can only flow in one direction.
- When fully open, the valve may experience erosion over time.
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**Product Images:**
This product is specifically designed for low-temperature environments, such as those found in LNG (Liquefied Natural Gas) systems, where reliability and performance under extreme conditions are essential. It is commonly used in cryogenic pipelines, vacuum systems, and other critical industrial applications where precision and safety are paramount.
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