Swing Check Valve
Highlights
- Compact design
- Tight sealing
- Piggable
ATV manufactures a full range of Swing Check valves for production, processing and transmission applications, suitable for pressure ratings up to Class 15000 psi 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 (API, 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 (ANSI, API, 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.
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Swing Check Valve - Specifications
SPECIFICATION
| MAIN DESIGN STANDARD | API 6A / ISO 10423 | API 6D / ISO 14313 |
| APPLICATIONS | Non-Return, Isolation Valve | Not-Return, Pipelines, rigs, platforms, skids, production plants |
| APPLICABLE STANDARDS | API 6A, ISO 10423, ASME VIII, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards | API 6D, ISO 14313, ASME VIII, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards |
| RANGES | 2 1/16” ÷ 11” Class 3000 psi and 5000 psi, 1 13/16” ÷ 7 1/16” Class 10000 psi, 1 13/16” ÷ 4 1/16” Class 15000 psi, 1 13/16” ÷ 3 1/16” Class 20000 psi. 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. |
MAIN FEATURES
| Forged body | ||
| Cast body | ||
| Bolted bonnet | ||
| Full bore | ||
| Welded-in or removable seat | ||
| Metal seated | ||
| Soft seated | ||
| Wear resisting hardfacing on sealing surfaces | ||
| Local position indicator | ||
| In-line maintenance |
END CONNECTIONS
| Flanges (to API 6A / ISO 10423) | ||
| 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) |
MATERIALS
| 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 | ||
| Stainless steel | ||
| Duplex or Superduplex stainless steel | ||
| Nickel Alloy |
OPERATORS
| Manual gear for pigging operations | ||
| Actuator for pigging operations |
OPTIONS
| Reduced bore | ||
| CRA Overlay, full or partial | ||
| Conduit clapper | ||
| Clapper position switches and transmitter | ||
| Hydraulic dampener | ||
| Lock open lever / clapper position indicator |