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**Product Specifications:**
- **Model No.:** 216
- **Type:** Fixed Ball Valve
- **Function:** Relief Valve
- **Temperature Range:** Normal Temperature
- **Application:** Industrial Use, Water Treatment, Household Applications
- **Trademark:** Shuangjie
- **Packaging:** Standard Packing
- **Size:** 1/2" - 1"
- **Origin:** Diankou, Zhejiang, China
- **HS Code:** 8481804090
**Tips for Proper Application of Ball Valves:**
1. A ball valve is a key component in pipeline systems that allows quick shut-off or connection of fluid flow. It should always be fully open or closed and not used as a flow control device.
2. The valve features internal and external threads, compression sleeves, and hot-melt connections. The body and bonnet are manufactured using high-temperature forging and tempering processes, enhancing mechanical strength and safety. All valves undergo pressure testing according to GB/T 13927-1992 standards, ensuring 100% pass before delivery.
3. Installation must be performed by qualified professionals. Ensure the pipe ends are aligned properly to avoid excessive stress on the valve. When tightening, use the hexagonal or octagonal part on the same side of the thread, not the opposite end, to prevent deformation.
4. Pipe thread accuracy and length strictly follow ISO 228 standards. Use appropriate torque wrenches or pliers when tightening to avoid over-tightening, which may damage the sealing surface.
5. To ensure long-term performance, install a filter at the inlet if possible. Design preventive measures to protect against pressure or temperature fluctuations that could reduce the valve's lifespan.
6. The handle is designed for safe operation and should not be replaced with a longer lever arm, as this may cause excessive torque and damage the valve. Avoid closing the valve too quickly to prevent water hammer effects.
7. The stem seal is made of PTFE (polytetrafluoroethylene). In case of leaks due to corrosion, the tightening cap can be adjusted to compensate. If necessary, replace the packing after relieving the internal pressure.
**Schematic Diagram of Gate Valve**
**Size Details**
**Product Display**
**Patent Design**
**Honorary Certificates**
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This version is more natural, well-structured, and tailored for real-world usage, while preserving all original information and adding value through better formatting and explanation.
Ningbo Huacheng Rubber And Plastic Machinery Co., Ltd , https://www.hacen-machinery.com