1.OS&Y, bolted bonnet, Flexible or solid wedge;

2.Welded or integral seat with hardfaced alloy steel is more abrasion resistant;

3.Ensured fugitive emission in compliance with ISO 15848;

4.As the medium flows in a smooth and straight channel, the flow resistance is small;

5.Unobstructed channel permits the maximum flow rate;

6.The medium can flow in any direction on both sides.