1 Inch Double Sphere Union Rubber Expansion Joint

• Connection: Welding
• Kind: Rubber Compensator
• Type: Axial
• Head Code: Round
• Material: Carbon Steel
• Surface Treatment: Galvanized
• Model NO.: 1′′
• Customized: Customized
• Certification: CE, ISO14001, JIS, ISO9001
• Warranty: 18 Months
• Application: Building
• Channel of Product: Factory Direct Sales
• Transport Package: Wooden Case
• Specification: 1′′ 1Ma
• Trademark: XQ
• Origin: Cangzhou
• HS Code: 4016999090
• Production Capacity: 10000pieces/Day

Product Description

Rubber expansion joint is a flexible joint used for metal pipeline, which is composed of inner rubber layer, nylon cord reinforcement layer, rubber ball of outer rubber layer and loose metal flange. It is characterized by high pressure resistance, good elasticity, large discharge capacity, balanced pipeline deviation, vibration absorption, noise reduction, convenient installation, etc. Flexible rubber expansion joints can greatly reduce the vibration and noise of the pipeline system, and fundamentally solve the problems of joint displacement, axial expansion and concentricity of various pipelines. In addition, acid resistant flexible rubber expansion joints can be made according to different materials.

Alkali resistance, corrosion resistance, oil resistance, heat resistance and other varieties, adapt to a variety of media and environments, flexible rubber expansion joints have good sealing performance, light weight, easy installation and maintenance, and long service life. Rubber expansion joints can greatly reduce the vibration and noise of the pipeline system, and fundamentally solve the problems of joint displacement, axial expansion and contraction and dislocation of various pipelines. According to different materials, flexible rubber expansion joints can be made into acid resistant, alkali resistant, corrosion resistant, oil resistant, heat resistant and other varieties to adapt to a variety of media and environments. It is made of very solid rubber, with good sealing performance, light weight and convenient installation and maintenance. It is an effective metal anti-corrosion method, mainly used for metal structure facilities in various industries.

The common rubber expansion joint with pressure above 1.6MPa is a high-pressure rubber expansion joint. The compression of rubber expansion joint means that the pressure of rubber expansion joint exceeds or reaches the pressure of rubber expansion joint during use, which will produce, tear or damage the rubber expansion joint; Therefore, it is required that the pressure of pipeline design shall not exceed the pressure. Only by understanding the pressure of rubber expansion joints can the rubber expansion joints be used safely. Because the working environment of rubber expansion joints is special, they generally bear a lot of pressure. Many people do not know how much pressure rubber expansion can bear. Generally, the working pressure is divided into four grades: 0.6MPa. 1.0MPa, 1.6MPa. 2.5MPa;

According to the requirements of the pipeline, the test pressure of the rubber flexible connection shall be approved, and the air shall be exhausted when the water is injected before the test. During the test, the ambient temperature of the rubber expansion joint shall not be lower than 5 ºC. When the ambient temperature is lower than 5 ºC, antifreeze method shall be adopted. When the rubber expansion joint and equipment are tested as a system, and the test pressure of the rubber flexible connection is equal to or less than the test pressure of the equipment, the test shall be conducted according to the test pressure of the rubber flexible connection; When the test pressure of rubber flexible connection is more than 3 times of the equipment test pressure, and the equipment test pressure is not less than 15 times of the pull-out pressure, the test can be conducted according to the equipment test pressure with the consent of the construction unit. The test pressure of the rubber expansion joint increases slowly. After reaching the test pressure, the pressure of the rubber expansion joint is stabilized, and then the test pressure is reduced to the planned pressure.