API 6D Swing check valve
Design standard ：API 6D API 594 BS1868
Product range ：
1.Pressure range ：CLASS 150Lb~2500Lb
2.Nominal diameter ： NPS 2~60″
3.Body material：Carbon steel, Stainless steel, duplex stainless steel, Alloy steel, Nickel alloy
4.End connection ： RF RTJ BW
Product features：
1.Small flow resistance for fluid；
2.Rapid opening and closing, sensitive action
3.With small close impact, not easy to product water hammer .
4.Equipped with counterweight, damper or gearbox is available as per customer request;
5.Soft sealing design can be chosen;
6.Can choose to lock the valve position in the fully open position
7.Jacketed design can be chosen.；