What are the differences between single-arch rubber expansion joints and double-arch rubber expansio

Both act in the same working scene, single arch rubber expansion joint and double arch rubber expansion joint are used for flexible connection between metal pipes and hollow rubber products.
Single arch rubber expansion joint features: work to reduce vibration and noise, the role of thermal expansion and contraction, used in a variety of pipeline systems. Small size, light weight, easy to install and remove, save labor, good ductility. Wide range of application, choose different rubber formulations to make the product has heat resistance, oil resistance, corrosion resistance, aging resistance, wear resistance, ozone resistance and other properties, so that better used in all walks of life.
Double-arch rubber expansion joint has the characteristics of single-arch rubber expansion joint, but also has excellent comprehensive performance, so it is key for source water and wastewater raising and transportation, thermal power station water supply and drainage and cooling circulating water, industry, condensate, chemical manufacturing industry, pipeline transportation of chemical compounds, petrochemical industry, diluent and other areas of flexible connection between the short and long route pipeline.
Since the double-arch rubber expansion joint is a double ball, so the connection length of this rubber expansion joint is better than the single-arch rubber expansion joint, the compensation amount compared to the single-arch rubber expansion joint double-arch rubber expansion joint has a greater compensation amount and deflection angle. However, the single ball safety performance is higher than the double ball, when the strength is too high, you can also use the anti-pull off equipment to avoid the work of the force pull off.