Rubber bellows specific parameters: ID Foreign Economic Recommended Operating Limits bending radius Weight overpressure vacuum production length mm mm bar bar mm kg / mm 50 58 2.5 1.5 70 0.29 20 60 68 2 1.5 80 0.43 20 63 71 2 1 80 0.46 20 70,792,195 0.5 20,768,521,100 0.55 2,080,892 0.59 1.2 110 1.2 125 20,901,002 201,001,102 0.67 0.75 1.2 140 2011012121150 0.9 2,012,013,121,160,120,125 13,621,170 1.1 2013014121170 1.2 2014015221180 1.5 1.3 20 150 162 20 200 214 1200 1.5 1.5 0.8 2.2 10 220 vacuum-resistant wear-resistant rubber bellows | wear resistant rubber radiation Ward retractable hose Hengshui Rubber Products Co., retractable rubber hose rubber hose than a smaller bend radius, built a spiral steel skeleton, can be resistant to vacuum. Each layer solid and reliable, long-term use does not appear delamination. With the market uses the same kinds of PVC duct compared with the better anti-aging properties and wear resistance, and therefore has a longer life. Also according to customer requirements Rui Ming also produce for you stretchable rubber hose with a 40% expansion. Product Structure: Rubber bellows from the aging wear-resistant layer, fabric reinforced layer, an intermediate layer spiral steel skeleton and the outer layer consisting of anti-aging products use: retractable rubber hose used for glass tempering furnace, coal mines, tunnels, subway, underground perform partial pressure-oriented ventilation and purification equipment suction dust, gas, ash and other debris. Advantages: retractable rubber hose with excellent flexibility performance than ordinary rubber hose with a smaller bend radius, the inner layer made of high quality heat-resistant rubber, dedicated to the chemical gas, heat, smoke and dust exhaust work, too can be used in medium containing solid particles; rubber bellows in general polyester, thermoplastic or special PVC duct compared with better resistance to aging, wear resistance and killed junction does not occur. Retractable rubber hose can also do fire retardant treated to make it more safe and reliable delivery of high temperature medium, spiral steel skeleton rubber hose is a modern chemical industrial gas, heat, smoke and dust exhaust ideal job. Product Working pressure: Rubber bellows are only allowed not more than 4bar conditions of low pressure environment, special circumstances will need to withstand a certain negative, namely vacuum. Product Specifications: DN40-DN1600 product wall:? 1-5mm