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.；