1. Material and structure

Rubber flexible joint

Material: Natural rubber or synthetic rubber is used as the main raw material, nylon cord fabric is used for internal reinforcement, and the external composite rubber sphere is matched with a loose metal flange.

Structure: The high elasticity of rubber and the reinforcement of cord fabric form a flexible connector that can absorb pipeline displacement and vibration.

Metal hose

Material: The main body is made of metal materials such as stainless steel, copper, and aluminum, and the interior includes three parts: bellows, mesh sleeve, and joint.

Structure: The pipeline compensation function is realized through the elasticity of the metal bellows and the protectiveness of the mesh sleeve, which can withstand high pressure and complex working conditions.

2. Performance characteristics

Rubber flexible joint

Flexibility: small size, light weight, easy installation and strong adaptability to pipeline deviation.

Shock reduction and noise reduction: It can reduce vibration and noise in pipeline transmission and improve system stability.

Sealing: Polar rubber material ensures sealing effect, but it is necessary to avoid contact with sharp metal instruments.

Environmental adaptability: It can be made into acid and alkali resistant, corrosion resistant, oil resistant, heat resistant and other varieties, and adapt to a variety of media.

Metal hose

Pressure resistance: It can withstand high-pressure oil and gas fluids to ensure safe medium transportation.

Temperature and corrosion resistance: High temperature and corrosion resistance, suitable for steam, water, oil and industrial gas transportation.

Flexible compensation: Transverse and axial displacement compensation is achieved through bellows to solve the problem of pipeline eccentricity.

Protectiveness: The mesh structure prevents internal wear and has strong bending and tensile resistance.

3. Application scenarios

Rubber flexible joints

Civilian field: widely used in building water supply and drainage projects, fire pump rooms, sewage treatment and other systems.

Industrial field: suitable for pipeline connection scenarios that are sensitive to vibration or require noise reduction, such as light load conditions in chemical, petroleum and other industries.

Metal hose

Industrial heavy load: used in high temperature and high pressure environments such as oil extraction, chemical transportation, aerospace, etc.

Complex layout: Adapt to the needs of pipeline thermal expansion and vibration absorption, commonly seen in complex pipeline systems in metallurgy, power and other industries.

4. Comparison of advantages and disadvantages

Rubber flexible joint

Advantages: easy installation, low cost, significant shock and noise reduction effect.

Disadvantages: relatively weak heat resistance and corrosion resistance, not suitable for extreme working conditions.

Metal hose

Advantages: excellent pressure and temperature resistance, long service life, adaptable to complex environments.

Disadvantages: high cost, professional tools required for installation and maintenance.