1) Bolted cover
2) Flanged or butt-welded ends
3) Standards compliance
4) Design and manufacture: API 6D, BS1868, ASME B16.10
5) Face-to-face dimension: API 6D
6) End flange: ASME B16.5
API Check Valve is suitable to Class150~600Lb and Working Temperature-29 to 550 in Oil, Chemical Industry, producing medicine, fertilizer and Electric Industry. Its suitable is water, oil, steam, acid...