山东文远环保科技股份有限公司检测手段齐全，各类产品定期开展耐压爆破试验、纵向回缩率、耐应力开裂实验、拉力试验以及熔融指数等试验，从原材料到成品各个环节的质量全部符合国家标准。公司所生产的各类PE管材、PE管件经测试中心测试，各项性能指标均符合GB/T15558.2、GB/T13663和MT558.1标准，并且在行业内率先通过了9000质量体系认证、14000环境管理体系认证以及18000职业健康安全管理体系认证等一系列资格认证，PE燃气管材管件产品已取得国家技术监督总局颁发的“压力管件元件生产许可证”。我公司PE给水管材、PE给水管件已经全部通过了山东省产品质量监督检验中心检测，并取得了山东省卫生厅颁发的“涉水产品卫生许可证”。DN20-DN630燃气管，质量稳定，产能充足，。
@山东文远环保，专注PE燃气管道生产销售，欢迎咨询合作：13280671957
@山东文远环保，专注PE燃气管道生产销售，欢迎咨询合作：13280671957
@山东文远环保，专注PE燃气管道生产销售，欢迎咨询合作：13280671957
@山东文远环保，专注PE燃气管道生产销售，欢迎咨询合作：13280671957
@山东文远环保，专注PE燃气管道生产销售，欢迎咨询合作：13280671957
最终的德州PE燃气管道连接与装配
德州PE燃气管沟内管道的热熔连接同地面上管道的热熔连接方式相同，但必须保证所连接的PE燃气管道在连接前必须冷却到土壤的环境温度。与金属管道、水箱或水泵相连时，一般采用法兰连接。对于不便于采用热熔方式连接时，也可采用法兰连接。法兰连接时，螺栓应预先均匀拧紧，待8小时以后，再重新紧固。
德州PE燃气管厂家压力测试
德州PE燃气管厂家压力测试可以在管线回填之前或之后进行，管道应以一定的间隔覆土，尤其对于蛇行管道，压力试验时，应将管道固定在原位。法兰连接部位应暴露以便于检查是否泄漏。
压力试验的测试压力不应超过管材压力等级或系统中最低压力等级的配件的压力等级的1.5倍，开始时，应将压力上升到规定的测试压力值并停留足够的时间保证管子充分膨胀，这一过程需要2-3小时，当系统稳定后，将压力上升到工作压力的1.5倍，稳压1小时，仔细观察压力表，并沿线巡视，如果在测试过程中并无肉眼可见的泄漏或发生明显的压力降，则管道通过压力测试。
在PE管www.wypeguan.com压力测试过程中，由于管子的连续膨胀将会导致压力降产生，测试过程中产生一定的压力降是正常的，并不能因此来证明管道系统肯定发生泄漏或破坏。
Shandong Wenyuan environmental Polytron Technologies Inc detection means complete, pressure blasting test, longitudinal shrinkage rate, stress cracking resistance test, tensile test and melt index test regularly carry out all kinds of products, from raw materials to finished product quality of each link all meet the national standard. All kinds of PE pipe, PE pipe fittings company produced by the testing center testing, the performance indicators are in line with GB/T15558.2, GB/T13663 and MT558.1 standard, and the first in the industry by the 9000 international standard quality system certification, 14000 environmental management system certification and the 18000 occupation health and safety management system certification and a series of certification, PE gas pipe the product has been issued by the National Technical Supervision Bureau "pressure pipe components manufacturing license". Our PE water supply pipe and PE water supply pipe fittings have all passed the inspection of Shandong product quality supervision and inspection center, and have obtained the hygiene license of aquatic products issued by Shandong provincial health department. DN20-DN630 gas pipe, the quality is stable, the capacity is sufficient, and the price ratio is high.
Final PE gas pipeline connection and assembly
The hot melt connection of PE gas pipe trench is the same as that of the pipeline on the ground, but it is necessary to ensure that the PE gas pipeline connected to it must be cooled to the ambient temperature of the soil before joining. Flange connection is usually used when it is connected with a metal pipe, water tank or water pump. Flange connection can also be used when it is not convenient to use hot-melt connection. When the flange is connected, the bolt should be tightened in advance. After 8 hours, the bolt should be re tightened.
PE gas pipe pressure test
PE gas pipe pressure test can be carried out at or after the pipeline before Backfilling Pipeline should be covering a certain interval, especially for hunting pipeline, pressure test, piping shall be fixed in situ. The flange joint should be exposed to check for leakage.
Test pressure test shall not be 1.5 times more than the minimum pressure level pressure pipe pressure level or system level parts at the beginning of the pressure rise to the test pressure specified value and stay long enough to assure the full expansion, this process needs 2-3 hours, when the system is stable after 1.5 times the pressure increased to the working pressure, pressure for 1 hours, carefully observe the pressure gauge, and the inspection, if during the test there is no visible leakage or obvious pressure drop, the pipe through the pressure test.
In the process of pressure test, the continuous expansion of pipes will lead to pressure drop. A certain pressure drop during testing is normal, and it can not be proved that pipeline system will leak or destroy.