Hangzhou Changpu Pipe Industry Co., Ltd.
HDPE socket fusion tee equal
Short-Term Temperature Excursions: HDPE can handle short-term temperature excursions above its continuous service temperature, but prolonged exposure to temperatures outside the specified range can result in dimensional changes, reduced mechanical properties, and increased susceptibility to chemical attack.
Derating Factors: As temperatures increase, the pressure rating of HDPE fittings and pipes may need to be derated. Manufacturers often provide derating factors that help you determine the reduced pressure rating at elevated temperatures.
Application Considerations: Consider the temperatures that your piping system will be exposed to during normal operation, as well as any temperature spikes or fluctuations that might occur. For applications involving hot fluids, steam, or other high-temperature substances, selecting HDPE materials with appropriate temperature resistance is crucial.
HDPE lift stop gate valve
Local Regulations: Consider any local regulations or codes that apply to your project. Valves used in certain regions may need to meet local standards or be approved by local authorities.
Performance and Testing: In addition to compliance with standards, look for valves that have undergone rigorous testing to ensure their performance, durability, and functionality.
Consultation: If you're uncertain about whether a specific HDPE lift stop gate valve complies with relevant standards and certifications, consider consulting with professionals or experts who specialize in valve selection and industrial applications.
Keep in mind that different valves might have different requirements for standards and certifications based on their design, materials, and intended use. It's essential to verify the compliance of the valve you're considering and to ensure that it meets the requirements of your specific project and industry.
Flange back ring
Material: Back rings are typically made from materials that are compatible with the piping system and the flange material. Common materials include carbon steel, stainless steel, and various alloys.
Design: Back rings are usually flat rings with holes that align with the bolt holes in the flanges. They are placed behind the gasket and the flange to provide additional support and rigidity to the connection.
Installation: During the assembly of a flange connection, the back ring is positioned between the gasket and the flange. It lines up with the bolt holes, allowing bolts to pass through and secure the connection.
Gasket Sealing: The back ring does not typically come in contact with the process fluid. Instead, it is positioned behind the gasket, which provides the sealing function.
Types: There are various types of flange back rings, including slip-on, weld-neck, and lap-joint back rings, each designed for specific flange types and connection methods.
