Subsea Swing Check Valve
- Robust design
- Automatic shutdown to protect pumps or compressors in case of reverse flow
- Piggable on application
ATV manufactures a full range of Swing Check valves for the subsea flowlines, PLEMs, PLETs applications, suitable for pressure ratings up to API Class 15000 and ANSI Class 2500, and water depths up to 10000 ft (3000 m).
The swing check valves can be regular port or full port, this latter being the option when the valve shall be piggable having an optimized design of body cavity and flapper.
ATV Swing Check valves can be supplied with clapper lifting device operated by a ROV tool (or by diver in shallow water). Lost motion devices can be supplied to reduce the wear on the shafted seals. Sensors for remote indication of clapper position are also available.
ATV supplies the subsea swing check valves in a wide range of materials and configurations to meet any specific need of the application and customer’s requirements. ATV valves are manufactured with hardfaced sealing surfaces with cobalt-chromium alloys. Materials are sourced from qualified suppliers on the base of specifications that reflect the industry standards (ASTM, NORSOK, BS, DIN or others), but do also incorporate additional requisitions resulting from long experience.
ATV designs, manufactures and tests its products in accordance with all the relevant Industry standards and codes (API, ANSI, ASME, DNV, BS, ISO, NACE, PED and others).
ATV stresses its willingness to produce engineered valves; therefore, it welcomes requests for special size, class and design requirements.
Subsea Swing Check Valve - Specifications
|APPLICATIONS||Upstream applications (PLEM, PLET, etc.), SSIV||Subsea pipelines and transmission systems|
|STANDARD||API 6A, API 17D ASME VIII Division 1 and 2, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards||API 6D, API 6DSS, ASME VIII Division 1 and 2, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards|
|RANGE||1 13/16” ÷ 9”, Class API 3000 and 5000, 1 13/16” ÷ 7 1/16” Class API 10000, 1 13/16” ÷ 5 1/8” Class API 15000. Any other size upon application.||2” ÷ 60” Class ANSI 600, 2” ÷ 48” Class ANSI 900, 2” ÷ 36” Class ANSI 1500, 2” ÷ 20” Class ANSI 2500. Larger sizes available on request.|
|WATER DEPTH||Up to 3000 m (10000 ft). Greater depth upon application.||Up to 3000 m (10000 ft). Greater depth upon application.|
|Welded-in or removable seat|
|Wear resisting hardfacing on sealing surfaces|
|Qualification to API 6A Appendix F PR2 and API 17D|
|Local position indicator|
|Flanges (to API 6A)|
|Flanges (to ASME B16.5 up to 24” and B16.47A for 26” and larger)|
|Compact flanges (to Norsok L005)|
|Hub ends for clamped connections (as per customer requirement)|
|Carbon steel with partial or full CRA overlay on the wetted areas|
|Low alloy carbon steel with partial or full CRA overlay on the wetted areas|
|Duplex and superduplex stainless steel|
|ROV mechanical gear for pigging operations|
|Clapper position switches and transmitter|
|Lock open lever / clapper position indicator|