Views: 0 Author: J-VALVES Publish Time: 2024-04-17 Origin: Site
The core component of the elastic gate valve is the elastic gate. Its sealing principle is based on the elastic deformation compensation mechanism. The following are the key points of its sealing principle:
I. Elastic deformation compensation
The elastic gate is made of highly elastic materials (such as rubber or elastic metal) and can produce a slight elastic deformation when closed. This deformation can compensate for the tiny deviations generated during the processing of the sealing surface, thereby achieving a tight fit and ensuring sealing performance.
II. Self-sealing and forced sealing
The sealing methods of the elastic gate valve can be divided into two types: self-sealing and forced sealing.
Self-sealing: In the closed state, the medium pressure presses the sealing surface of the gate against the valve seat to form a seal. This sealing method does not require external force and is suitable for low and medium pressure working conditions.
Forced sealing: External force is applied through the valve stem to press the gate against the valve seat to ensure sealing. This sealing method is suitable for high pressure working conditions and can provide a more reliable sealing effect.
The sealing surface of the elastic gate valve is usually formed by surfacing with highly wear-resistant materials (such as stainless steel or hard alloy) to improve wear resistance and corrosion resistance. In addition, the geometric shape of the sealing surface (such as wedge-shaped or parallel surface) is also optimized to adapt to different working conditions.
Elastic gate valves are widely used in multiple industries due to their excellent sealing performance and high reliability. The following are its main application fields:
(I) Municipal water supply system
In the municipal water supply system, elastic gate valves are used to control the on and off of water flow and ensure the stability and safety of water supply. Its excellent sealing performance can effectively prevent water leakage and reduce waste of water resources.
In the sewage treatment system, elastic gate valves are used to cut off the flow of sewage for easy maintenance and management. Its strong corrosion resistance can adapt to chemicals and impurities in sewage and ensure the long-term stable operation of the system.
(III) Petroleum and chemical industry
In the petroleum and chemical industry, elastic wedge gate valves are used to control the flow of various media, including oil products, chemicals and steam. Its high-pressure sealing performance and high reliability make it an ideal choice for these industries.
