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2024-09-30

Why are sealing devices required for gate valves and globe valves?

Gate valves and globe valves are required to have upper sealing devices, mainly based on the following considerations: One. Prevention of medium leakage and protection of packing Prevent medium leakage: When gate valves and globe valves are in the closed state, the valve stems remain at rest. If there is no upper sealing device, the medium may seep upward along the gap between the valve stem and the valve body, causing the medium to leak out. The upper sealing device can effectively prevent the leakage of the medium and ensure the working performance and safety of the valve. Packing protection: The packing box is usually sealed with flexible mat

2024-09-30

The application fields of sanitary pipe fittings

Sanitary grade pipe fittings are widely used in multiple fields due to their high-quality standards and excellent performance. The following are its main application fields: 1. Medical and health care field Hospitals and clinics: In medical Settings, sanitary-grade pipe fittings are used to connect various medical devices, such as infusion tubes, hemodialysis equipment, surgical instrument cleaning systems, etc., ensuring the safety and hygiene of the medical process.

2024-09-30

What are the differences between wafer-type butterfly valves and flanged butterfly valves?

Wafer-type butterfly valves and flanged butterfly valves are two common types of butterfly valves in industrial pipeline systems, and they have significant differences in structure, installation methods and application scenarios. The following are the specific differences between the two: 1. Structural features Wafer-type butterfly valve There are no flanges on both sides of the valve body. Usually, there are only a few guide bolt holes. It has a simple structure, small volume and light weight, and is composed of a few parts, such as the valve body, valve stem, butterfly plate and valve seat. Sealing method: Elastic sealing is usually adopted. The sealing ring can be em