Design standard:ASME B16.34, API 602, BS 1873, DIN 3356 All the SDNR (Globe Check Valve) supplied by SSIE is a kind of globe valve which have function of check valve, with loose disc, flow direction is only from low to high
1. Pressure range:CLASS 150Lb~2500Lb.
2. Nominal diameter:NPS 1/2”~24″.
3. Body material：Carbon steel, Stainless steel, Duplex, Alloy steel and special material.
4. End connection:FF, RF, RTJ, BW, Hub.
1. Uni-directional from low to high.
2. Cage lining with disc for big size and high pressure.