A high-quality spring is selected, and the anti-fatigue performance is excellent;

Multiple materials can be selected for manufacturing the valve seat and the valve disc, and they are suitable for various working conditions;

The components of the valve element and the valve seat can be replaced on site (the internal maintenance staff can conduct maintenance);

The anti-corrosion coating is suitable for the application with corrosivity;

The certified displacement curve is suitable for various product sizes; and

There are ANSI, ASME, DIN and HG/T20592~20635-2009 flanges for options.