Stainless steel hose testing standards: tightness test: hose pressure test should be carried out after passing the tightness test test medium dry, clean air, may also be based on user needs to use nitrogen or other inert gas test equipment for the electric pump (or cylinder group), pressure gauge, sink plug one end of the hose specimen mount special type of metal hose, the other end of the air intake phase, which leads to a pressure equal to the nominal pressure of the gas, the specimen is immersed in water tank the removal of adsorbed put blisters after net insurance 10min inspection sample test pressure test without leakage pressure test medium for clean water, a chlorine ion content of not more than 25ppm test device for the electric or manual pump, pressure gauge (measuring range 1.5 to 4 times the test pressure, the same below) flat hose sample is placed on one end of the plug with the exhaust valve, and the other end connected to the pump outlet pipe. The water is injected into the tube professional custom dedicated metal hose, drain air, close the exhaust valve, and then slowly increase the pressure to the specified value insurance 5min, check for any leaks in the sample, visual inspection for damage parts of hose couplings not allowed inside sealing surface cracks, scratches, burrs, trachoma, welding slag and other defects in the hose, the outer surface should be clean and dry, does not allow rust, iron and other residues are present nets should fit the bellows, bellows Surface does not allow bumps, welding slag and other defects steel mesh sleeve off (default) the total number of roots wire steel mesh cover Table 5 should be evenly distributed network spent dedicated metal hose supply manufacturers, its surface should be smooth, not allow folding metal hose Shandong special agents, distortions and other defects What is a corrugated metal hose? Corrugated metal hose (the bellows) is a modern industrial pipeline in a high quality flexible pipe. It is mainly from the bellows, nets and connector components. It is a spiral-shaped inner tube or ring wave of thin-walled stainless steel bellows, bellows outer nets, is made of stainless steel wire or steel woven according to certain parameters. Connector or flange ends of the hose with pipe joints or mating flange customers dedicated long-term supply metal hose | Hopen hose | special metal hose by Hao Peng Ning County, stainless steel metal hose Limited . Ning County Hopen stainless steel metal hose Limited (www.haopengguanye.com) (www.haopengguanye.com) is Dezhou, hoses leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. In Hopen hose leadership with the staff warmly welcome all inquiries negotiations to create Hopen hose better future.