1. The product structure is compact and reasonable, reliable sealing and excellent performance.

2. The sealing surface is made of alloy steel or cemented carbide. The sealing pair is reasonable and the service life is long.

3. Adopt all kinds of piping flange standard and flange sealing type to meet various engineering needs and user requirements.

4. Its small size, light weight, good processing technology, is one of the development direction of the check valve.