What is the Features and usage of Rubber Expansion Joint

What is the Features and usage of Rubber Expansion Joint

Introduction
Rubber joints, also known as flexible rubber joints, flexible rubber joints, soft rubber joints, shock absorber, (shock absorbers throat), rubber shock absorbers, rubber expansion joints and so on. The product consists of inner and outer layers of plastic, ply and bead composition tubular rubber parts, high temperature, high pressure molding after curing with metal flanges or parallel connector loose jacket combination. This product utilizes the high elasticity of rubber, high gas resistance, chemical resistance, weatherability and resistance to radiation and other advantages to reduce vibration and noise, and thermal expansion and contraction due to temperature changes from the compensation due to the widely used various piping systems;

Medium:
Water, fresh water, hot and cold water, drinking water, sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, steam and particulate powder.

Connection:
Generally loose flange type (semi-hermetic), fixed flange (sealed), clamp and threaded connections.

Soft rubber joints Material:
Soft rubber joints ball is from the inside layer, scraping gum enhanced multi-layer nylon (nylon) cord fabric, rubber outer layer composite tubes. Depending on the medium used rubber material is also different, there are natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, neoprene, silicone rubber, fluorine rubber and so on. Respectively, with heat, acid, alkali, corrosion resistance, abrasion resistance, oil and other functions.

Soft rubber joints specific categories are:
Vacuum-resistant rubber joints, rubber joints acid, oil rubber joints, high temperature rubber joints, wear rubber head.

Ordering Information and Selection
1, flexible rubber joint port via: DN32 - DN4600;

2, working pressure: PN0.6MPa - PN2.5MPa;

Prosess of rubber joint
1, depending on the conditions of use of different types of plastic, there are natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, neoprene, silicone rubber, fluorine rubber and so on. Respectively, with heat, acid, alkali, corrosion resistance, abrasion resistance, oil and other functions.

2Formed
Molding is handmade, a search cord no tear and preventing the bolt hole just hit the tear site.

3.Vulcanization
The products are used for a long time bottom temperature vulcanizing the rubber to achieve optimal performance.

4.Semifinished product
? The production of rubber ball, belly Japan belly high index are larger than standard
The displacement amount of compensation more than the same industry,

Features
(1) Economy: Compared with the systems of mechanic stretching and material damping, it has the advantages of little space covering, light weight, easy assembly and disassembly, labor saving and low cost. Its smooth inner wall can reduce flow resistance. It has good water tightness, so there is no need of gasket during the installation. It has wide application, large temperature-resistance scope and long working life. (This product can be used for 20 years if it is used indoors.)
 
(2) Displacement: Flange is free from pipe decentraction and imbalance. Its good flexibility allows compression, extension, distortion, deflection of vertical displacement, etc. which can prevent the pipeline from damage of deformation and foundation settlement arising from expansion caused by heat and contraction caused by cold.
 
(3) Shock and noise absorption: The large damping of rubber sphere can effectively buffer and isolate vibration, control and reduce mechanical vibration, and absorb fluid impact noise. The reasonable installation between vibrating machine and metal pipe can decrease structure-borne noise by 15-25 decibels.
 
    (4) Pressure resistance: The multilayered sphere structure can especially endure internal pressure, withstand strong blasting force and impact, and prevent deformation from external pressure. There are many pressure standards on work piece.
 
     (5) Reducibility: After external force compressed, it can recover to original state when this force is removed.
 
     (6) Wide application: Different rubber material and formula can make product possess different resistance to heat, oil, corrosion, age, abrasion and ozone.