Flanged Casting Steel Swing Check Valve for sour and alkaline medium
Product Details
The swing check valve, also known as one-way valve or non-return valve, its effect is to prevent medium backflow in the line. The valve that is opened or closed itself by the medium flow and force to prevent the backflow of the medium is called the check valve. Check valve belongs to automatic valve class, mainly used for directional flow of medium pipeline, only allow medium to flow in one direction to prevent accidents. These valves shall generally be installed horizontally in the pipeline.
This valve controls the opening and closing valve by turning the plate around a pivot above the valve seat. Open and close the valve by thrust from spontaneous flow of medium in the pipe.
Performance Characteristics
1.The body is integral forging or casting design without leakage outside;
2.Specially designed double seal seat structure, zero leakage, and reliable seal;
3.Single plate design, high performance;
4.Metal sealing design to meet the wider temperature range;
5.Less spare parts, easy to maintain;
6.Opening and closing without jam, reliable operation, and long life cycle.
Applicable Medium
Mainly suitable for oil, natural gas, water and other sour and alkaline medium.
Technical Parameters
| Standards | Design Standards | API 6D, ANSI B16.34, BS 1868, GB/T 20173, GB/T 19672 |
| Face-to-face dimension | API 6D, ASME B 16.10, GB/T 20173, GB/T 19672 | |
| Flange Standards | ASME B 16.5, ASME B 16.47, GB/T 9113, GB/T 9115, HG/T 20592 | |
| Pressure Test Standards | API 6D, ISO 5208, API 598, GB/T 20173, GB/T 13927, GB/T 19672 | |
| Pressure Rating | Class 150Lb ~ 1500Lb (PN 1.6 ~25.0 MPa) | |
| Nominal Diameter | 2” ~ 36” (DN 50 ~ DN900) | |
| Operation | Self-opening | |
| Connection | Flanged | |
| Material Standard | ASTM, GB | |
| Major
Component Materials |
Body & Bonnet | WCB, LCB, A105, LF2, CF8, CF8M, 4A, etc. |
| Disc | A105+ENP, LF2+ENP, F304, F316, F51, etc. | |
| Shaft | 304, 316, F51, etc. | |
| Sealing Ring | STL, Stainless Steel, etc. | |
| Applicable temperature |
-196 ~ 540℃ |
|
| Remarks | ||
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