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Function and requirement of rubber joint installation limit device

Time: 03-28 󰃯 Reading times: 911 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: The rubber soft joint is generally composed of inner rubber layer, fabric reinforcement layer (reinforcement layer has multi-layer scraping nylon cord fabric), middle rubber layer, outer rubber layer, end reinforcement metal ring or steel ring, which is vulcanized at high temperature and high pressure, and combined with metal flange or parallel joint loose sleeve

Rubber flexible joint It is a compound rubber pipe which is generally composed of inner rubber layer, fabric reinforcing layer (reinforcement layer has multi-layer scraping nylon cord fabric), middle rubber layer, outer rubber layer, end reinforcing metal ring or steel ring, which is vulcanized at high temperature and high pressure, and is combined with metal flange or parallel joint loose sleeve.
Rubber joint The limit device is a device to protect the rubber joint from the danger of pulling off. It can control the displacement of the rubber joint in a certain range, so as to ensure the stable operation of the rubber joint and the pipeline. The expansion device can be added to the pipeline to prevent the bending of the pipeline, especially when the limit of the bending limit of the pipeline is exceeded.
Installation requirements of limit device: 1. If the pipe diameter is larger than DN200, it is necessary to install a limit device, because the larger the diameter of the pipe, the more obvious the elastic performance of the ball. By installing such device, the stability of large diameter rubber joint can be improved. 2. When rubber joint is installed at high altitude, it is also necessary to install limit device in case of large diameter pipeline. This is because installation of rubber joint in suspension can not relieve pressure through supporting pier. Only by installing limit device can the stability of rubber joint be improved. 3. After that, the rubber joint is installed at the bend of the pipeline, and the limit device is also required. This is because the pipeline will have a strong impact on the bend under the influence of inertia and have a strong impact on the product. The operation safety of the elbow can be ensured by installing the buttress and bracket and the limit device configured by the product itself.
1. It can be divided into general, special and heat-resistant according to its performance.
General class: suitable for conveying water with temperature of - 15 ℃ ~ 80 ℃, acid solution or alkali solution with concentration below 10.
Special category: suitable for special performance requirements, such as oil resistance, plug resistance, ozone resistance, wear resistance or chemical corrosion resistance.
Heat resistant: suitable for conveying water with temperature higher than 80 ℃
2. It can be divided into single sphere, double sphere, three sphere, elbow sphere, wind pressure plate pipe body, etc. Each form can be divided into concentric equal diameter, concentric diameter reduction and eccentric diameter reduction.
3. According to the shape, it can be divided into:
Concentric diameter, concentric diameter reduction, eccentric diameter reduction.
3. According to the connection form of product and pipeline, it can be divided into flange connection, threaded connection and clamp connection, threaded pipe flange connection, etc.
4. According to working pressure:
There are six grades: 0.25MPa, 0.6MPa, 1.0MPa, 1.6Mpa, 2.5MPa and 6.4Mpa.
Performance characteristics of rubber compensating joint
1. Small size, light weight, good elasticity, easy installation and maintenance.
2. After installation, it can absorb the lateral, axial and angular displacement caused by pipeline vibration, and is not limited by the pipe misalignment and flange parallelism.
3. After installation, it can reduce the noise caused by vibration of water pump and pipeline, and has strong vibration absorption capacity.
4. The inner seamless high-pressure rubber joint can effectively prevent the corrosion of corrosive medium on the inner wall of rubber joint in the pipeline with high temperature resistance, acid and alkali resistance and oil resistance, so as to improve the service life.
Application field of rubber joint
Due to its excellent comprehensive performance, this product is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and light industry, refrigeration, sanitation, water heating, fire protection, electric power and other basic projects. According to the different materials, it can be made into various varieties, such as acid resistance, alkali resistance, corrosion resistance, oil resistance, high temperature resistance, radiation resistance, wear resistance, aging resistance, etc., to adapt to a variety of media and environment.