Product
Lug Type Double Plate Check Valve
Specification
Size: NPS8~60″ (DN200~1500mm)
Pressure: Class150~900Lb
Main Material: WCB、A105、 C5、WC6、WC9
Design and manufacturing standards: API594, API 6D, ASME B16.34
Structure length: API 594, API 6D, ASME B16.10
Connections: ASME B16.5, ASME B16.47
Test standards: API 598, API 6D
Main Parts Material:
ErPart | Material |
Body | WCB、304、316、316L |
O ring | NBR、VITON |
Disc | 304、316、316L |
Gland | 304、316、316L |
Shaft | 304、316、316L |
Features:
- The structure length is short, which brings great convenience to the valve installation, handling, storage and pipeline layout, and can save costs.
- Reduce line vibration, in order to reduce line vibration to a minimum or eliminate line vibration, the check valve must be closed as soon as possible before the liquid flow has a chance to reverse flow. The size of each flap in a double-lobe check valve Only half the size of a fully constructed check disc, it experiences reduced fluid resistance and faster movement to the closed position. They have a radius of rotation half that of conventional check valves.
Its leading distance from the open to the closed position is halved, thus reducing travel time by up to 50% - The double-piece check valve reduces water hammer, and the flaps of the double-piece check valve have been greatly reduced in weight, which can reduce the slamming and water hammer phenomena to a small limit Degree.