Swing type check valve usually be reliably used in steam, sir, coal gas, oil or oil gas ect, high or low pressure condtion. High or low pressure valve normal adopt internal rocker to reduce medium external leakage. It can be equipped external level and adjusting foundry weight and can be select connection type and trim material acc. To working condtions if user need. Large check valve usually be equipped with vibration absorber .

Cast steel check valve design structure and feature:
Design as per: API 594 API6D BS 1868
Test: API598
Flange: ASME B16.5
BW: ASME B16.25
Structure Length: ASME B16.10

Material:
ASTM A216-WCB ASTM A217-WC1\WC6\WC9\C5
ASTM A351-CF8\CF8M\CF3\CF3M

Working Pressure: Class150~2500
Size: 2"~24"(small sizes are forged made)

Size:
1/2"~10"