Swing Check Valve
- Compact design
- Tight sealing
ATV manufactures a full range of Swing Check valves for production, processing and transmission applications, suitable for pressure ratings up to API Class 15000 and ANSI Class 2500.
Swing check valves are typically full bore with optimized design of body cavity and disk for piggability, including the capability to handle intelligent pigs. Reduced bore check valves can be supplied on request for specific applications in pumping stations.
ATV Swing Check valves can be supplied with dampening system to increase the closing time and avoid shocks and with clapper lifting device operated manually or by remote controlled actuators. Lost motion devices can be supplied to reduce the wear on the shafted seals. Sensors for remote indication of clapper position are also available.
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, 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.
Swing Check Valve - Specifications
|APPLICATIONS||Upstream applications||Pipelines, rigs, platforms, skids, production plants|
|APPLICABLE STANDARDS||API 6A, ASME VIII Division 1 and 2, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards||API 6D, ASME VIII Division 1 and 2, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards|
|RANGES||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.|
|Welded-in or removable seat|
|Wear resisting hardfacing on sealing surfaces|
|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)|
|Buttwelded ends (to ANSI 16.25)|
|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 or Superduplex stainless steel|
|Manual gear for pigging operations|
|Actuator for pigging operations|
|CRA Overlay, full or partial|
|Clapper position switches and transmitter|
|Lock open lever / clapper position indicator|