Hi Shridhar, it depends on ...

Hi Shridhar, it depends on many factors ie diameter, pressure (SDR rating of the pipe and its operating pressure), length between fittings for connection for correlation (make sure you have a good one) or insertion of devices such as Sahara or JD7, age and specification of the PE, type and certification of jointing especially if electrofusion has been used, type and frequency of any connections including air valves, etc... Do let me know if you want more advice regards Nick