Zero leakage gasket is composed of stainless steel fixed inner and outer ring as well as industrial grade and unclear grade flexible graphite sealing rings which are specialized making. It's one of the most innovative and creative gaskets. Our idea of creative design conforms to occasions which with sudden change of temperature and fluctuation pressure.

* Normal pressure: PN≤420 or Class≤2500

* Normal diameter: DN≤600 or NPS≤24
* Sealing Capability: ≤1×10-7Pa*M 3/s
* Temperature: ≤450oC(air-like oxidizing medium);

≤650oC(steam)