ASTM A352 LCC Swing Check Valve, API 6D, 4 Inch, 600 LB, RF

Product Name: ASTM A352 LCC Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A352 LCC
Size: 4 Inch, DN100
Pressure: Class 600 LB, PN100
End Connection: RF Flanged

Universal Cast Steel Check Valves are engineered to meet international standards such as API 6D, BS 1868, and ASME B16.34. Designed to minimize flow resistance and pressure drop, these valves are ideal for horizontal pipeline installations. The lapped and screwed-in seat ring ensures a tight seal and long service life.

Key features include a precisely designed and machined disc, guided for efficient automatic shutoff even at zero pressure. With a compact structure and low-emission performance, these swing check valves are equipped with a bolted cover and a free-swinging clapper, which adjusts based on flow conditions.

While standard swing check valves perform well in horizontal pipelines, heavier disc designs may encounter chattering issues. In such cases, dampers or counterweights can be added for optimal performance.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» Design Pressure: Class 150–2500 LB (PN10–PN420)
» Materials: ASTM A216 WCB, WCC, A217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Design and Manufacture Standards: BS 1868, API 6D, DIN 3352
» Face-to-Face (End-to-End): ANSI B16.10, EN 558 Series
» Flanged Connections: ASME B16.5, ASME B16.47, EN 1092 Series
» Butt Welded End: ANSI B16.25
» Test and Inspection Standards: API 598, ISO 5208, EN 12266-1
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Product Features

» Cast Steel Swing Check Valve: Used to prevent backflow in the line. Flow is in a straight line through the valve, resulting in minimal pressure drop. The disc swings into the open position as the media flows through the line. Back pressure in the         line holds the disc in the closed position.
» Installation: Cast steel swing check valves may be installed in horizontal or vertical lines but must be installed in the proper orientation relative to the media flow, as indicated by the flow direction arrow marked on the body.
» Accessories: Accessories such as bypasses, locking devices, counterweights, and many others are available to meet customer requirements.