4) Long life. Polyethylene materials can be used more than 50 years, which is foreign to the tensile strength based on polyethylene pipe loop hydrostatic design basis of long-term value (HDB) identified, already recognized by international standards.
(5) to facilitate construction. Polyethylene valves and light weight compared to metal valves, easy to install. Open and close easily, the operating torque is small. For the full bore valve, the pressure loss.
5, application
High pressure polyethylene pipe should be set on the charge of sub-polyethylene valve and the valve should be on both sides of the elution tube. High pressure polyethylene gas pipe branch should be set at the starting point of polyethylene valves, set the diffuse unilateral control. PE ball valve is mainly density polyethylene pipe buried in the package, cut off all gas transmission and media streaming. The valve can be buried in the ground, just install a simple sheath, opening and closing seat accessories, you can use a special wrench to perform opening and closing operations on the ground, polyethylene ball valve for the media to meet the national standard gas purification , liquefied petroleum gas and artificial gas.

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