Plumbing pipe fittings flange connection duct expansion joints

    Plumbing pipe fittings flange connection  duct expansion joints   horizontal expansion joints  can solve the problem of different diameter when connecting to metal pipe, has the effect of the damping noise reduction at the same time, and can save piping parts, saving cost. It consists of inner rubber, fabric reinforced layer, middle layer, outer layer, end reinforced metal ring or steel wire ring, metal flange or parallel of union. Characteristics of   duct expansion joints  horizontal expansion joints With high pressure, good elasticity, large displacement, balancing pipe deviation, absorption vibration and good noise reduction effect, convenient installation and other characteristics, eccentric reducing  horizontal expansion joints can be widely used in water supply and drainage, circulating water, hvac, fire protection, papermaking, pharmaceutical, petrochemical, ship piping system, water pump, compressor, fan, etc. Classification of  duct expansion joints Generic class: suitable for conveying water that  horizontal expansion joints temperature is -15~80 °C and the acid solution or alkali solution that concentration is below 10%. horizontal expansion joints  Special classes: suitable for special performance requirements, such as resistance to oil, plug, ozone, abrasion and resistance to chemical corrosion. Heat-resistant class: suitable for conveying water that temperature is higher than 80°C. Main performance and functions of  duct expansion joints 1.  horizontal expansion joints installation: the eccentric is used to prevent cavitation, when installed at the entrance of the pump, it generally should be installed roof flat, thus prevent the pipe gas accumulating in the pump inlet, form big bubbles into pump cavity, and damage the pump. Only one case can be smooth installation. That is behind the head size directly after bending elbow upward. In this case the gas phase may not accumulate. 2. Pump, pipeline concentric reducer installation: there are differences between the pump export DN and outside pipeline system. Using the concentric reducing expansion joint, which can realize the two pipes of different size linear connection, the realization of variable diameter pipe fittings. duct expansion joints  axial displacement is: rubber joint’s elongation or compression is in line with the fluid flow direction (that is, the central axis direction). Eccentric lateral displacement is: rubber joint’s axis displacement is in a direction perpendicular to the flow direction. Eccentric reducing rubber expansion joint angular displacement is:  duct expansion joints  of two end face of the Angle sum of the vertical centerline and the original axis. duct expansion joints Plumbing pipe fittings duct expansion joints Installation data       Plumbing pipe fittings  duct expansion joints  Application of field    HENGZHONG Warehouse     duct expansion joints   Plumbing pipe fittings  duct expansion joints  Export packaging   horizontal expansion joints HENGZHONGQualification     horizontal expansion joints HENGZHONG Main products duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints duct expansion joints expansion joint expansion joint expansion joint expansion joint expansion joint expansion joint  duct expansion joints ntal expansion joints horizontal expansion joints