Chengda Winder FRP Membrane Housing Certificated By ASME, ISO9001, ISO14001

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Chengda found in 1976 is a large manufacturer for FRP RO/DTRO/STRO membrane housing and FRP water tanks. Chengda have three brand: Winder, Rohone and Aowy. Aowy is only for Frotec, because Chengda is the FRP RO membrane housing and FRP tanks production base for Frotec - the largest water treatment trading company in China.

Details make a difference, Chengda Winder from the raw materials, production, processing, machining, external accessories, assembly, quality inspection, packaging and other aspects of the strict control, with excellent quality to win the market and customers good reputation.

Winder FRP RO housing since 2006, ASME certification in 2014: 

  • 100% quality assurance test with 1.1 times of working pressure maintained for at least five minutes, we could guarantee the safety and no leakage. Not sampling test.
  • Quality Assurance
    • Burst test with 6 times of its design pressure;
    • 100000 times cycle test.

Winder FRP tanks

  • Fatigue test: 250000 times.
  • Burst test: 4 times of its design pressure.
  • Small tanks (844-1665) use 600 tex fiberglass, not 1200 tex fiberglass, with strong better pressure coefficient and safety factor.