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FAQ

  • Q

    Which SDR of HDPE fittings shall we use for the HDPE pipe in SDR13.6-PN12.5? Can we use the SDR17 fittings for our SDR13.6 pipe?

    A
    To guarantee the safety of piping system, the HDPE fittings shall be equal to or higher pressure rating than pipeline. So for HDPE pipe in SDR13.6, you shall take the fittings in SDR13.6 or SDR11. The fittings in SDR17 is not suitable for SDR13.6 pipeline.
  • Q

    Can HDPE fittings connect to PVC pipe? Or can HDPE fittings connect to PPR pipe?

    A
    For thermal plastic fittings, they can be connect to the pipes with same material grade only. So, for HDPE fittings, they can be connected to HDPE pipe only, but can't connect to PVC pipe or PPR pipe.
  • Q

    How can we connect HDPE pipes to PVC pipes?

    A
    Since HDPE pipe & PVC pipe are made of different material grade, they are unable to connect together by "heat-fusion". The possible way to connect them together is by flanged connection. To use HDPE flange adaptor & HDPE backup flanges to make it possible to connect to PVC flanges.
  • Q

    Is Gaohui HDPE fittings UV resistant?

    A
    Yes, HDPE fittings are UV resistant and UV stable and will not structurally degrade from UV light. After a lengthy period of direct UV light contact, the external surface of the fittings change visually to a slightly waxy look, but this does not affect the performance and is removed by a rotary pipe scraper prior to electrofusion welding.
  • Q

    HDPE butt fusion fittings & HDPE electrofusion fittings, which one is better?

    A
    It is difficult to distinguish which one is better, because both of them reputes excellent performances. The HDPE electrofusion fittings can save installation costs and provider a more reliable jointing while HDPE butt fusion fittings are much lower on material costs. In addition, for the HDPE pipe with a diameter higher to 200mm, the HDPE butt fusion fittings are a more efficient and economical option.
  • Q

    O afea e mafai ai ona ou maua le tau?

    A
    We usually quote within 24 hours after we got your inquiry. If you are very urgent to get the price, please call u or tell us in your email so that we will regard your inquiry priority.
  • Q

    What the Raw material?

    A
    We only use 100% virgin raw material.
  • Q

    O le a lau MOQ?

    A
    Usually, no MOQ if have the stock.
  • Q

    What kind of transportation do you offer?

    A
    Sea transportation,air transportation,railway transportation,sea and land transportation, etc.