Stainless steel metal hose pipe can reduce the installation stress in many complex piping system, there will be space constraints, the construction industry, metal hose, fixed pipe is not installed, can not be bent, is, however, building industry with a metal hose patented technology, mandatory installation can cause fracture and cold calibration. Doubtless great risks. Give the installation work has brought great convenience, the safe operation of the pipeline system also plays a certain role in safeguarding. This is the main reason some pipeline systems metal hose must be used. A model of the engine in the section bearing lubricant conduit, in actual operation, multiple fractures accident occurred, since the metal hose can be bent and curved bend radius at rated conditions of internal stress generated minimal. 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, specimen mount sink plug one end of the 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 a water bath, professional distribution of building industry with a metal hose, remove adsorbed in the net put blisters insurance 10min no leakage after checking the sample pressure test pressure test test medium for clean water, a chlorine ion content of not more than 25ppm test device for the electric or manual pump. pressure gauge (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. Injecting water into the tube, drained air, close the exhaust valve, and then slowly increase the pressure to the specified value insurance 5min, check for any leaks in the sample, seal the surface appearance of the parts for damage detection hose connector does not allow cracks, within abrasions, burrs, trachoma, welding slag and other defects hose, the outer surface should be clean and dry, does not allow rust, iron and other residues are present nets should fit the bellows, the bellows surface allowed to have bumps, welding slag and other defects steel mesh sleeve off (default) the total number of roots in Table 5 wire steel mesh nets flowers should be evenly distributed, the construction industry with a metal hose national patent products, the surface should be smooth, does not allow folding, distortion and other defects in the construction industry with a metal hose patented technology, Hopen hose, metal hose construction industry by Ning County Hopen 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.