Manual Operate - Check Valve

 Check Valve

Check valve is also known as one-way valve or non-return valve. This kind of valve is automatically opened and closed by the force generated by the flow of medium in the pipeline. A check valve is an automatic valve, and mainly applied to the pipe with medium flows in one direction to prevent accident. Mainly manufactures four types of the check valve: swing check valves, pressure sealing swing check valves, dual plate check valves and tilting disc check valves.

Swing Check Valve

1. As the channel within the valve is in streamline form, the flow resistance of the swing check valve is smaller than that of the lifting check valve. It's suitable for low flow and large-caliber applications without frequently change in flow. However, it's not suitable for pulsating flow for sealing performance poorer than that of the lifting check valve.

2. A swing check valve is suitable for various working conditions of pipeline for petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry.

3. The swing check valve is suitable for the clean medium like water, oil, steam, acid medium, but not suitable for medium with solid particles and great viscosity.

Key Specifications / Features

Valve descriptions

Product: ASTM A216 WCB Swing Check Valve.

Design: API 6D–Full Bore.

Body: ASTM A216 WCB.

Nominal size: 6 Inches.

Nominal class: Class 300 LB.

Connection ends: RF Flagged ends.

Face to face: as per ASME B16.10.

Test and inspection: API 598.

Other features

Bolted bonnet

API 6D full bore, BS 1868 standard bore

Inside shaft or outside shaft

Mounted lever + counterweight outside shaft

Check valves with large sizes mounted with hydraulic damping cylinder

Technical Parameters and Characteristics

Product type: Swing type check valve.

Size ranges: NPS 2 - 24 Inch, DN50 - DN600.

Design pressure: Class 150 - 2500 LB, PN10 - PN420.

Design standard: BS 1868, API 6D, DIN 3352.

Design temp.: -196℃ - 593℃.

Materials: ASTM A216 WCB, ASTM A216 WCC, ASTM A217 WC6, ASTM A217 WC9,

ASTM A217 C5, ASTM A217 C12A, ASTM A352 LCB, ASTM A352 LCC

ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M, ASTM A351 CF8C

CN3MN, CK3MCUN, CN7M, ASTM A890 4A(CD3MN), ASTM A890 5A(CE3MN),

ASTM A890 6A(CD3MWCuN)

ASTM B148 C95800, ASTM B148 C95500.

Connection ends: ASME B16.5, ASME B16.25, EN1092 series.

Applications: Electric power, petroleum refining, petrochemical engineering, offshore oil, chemical engineering, etc.

BS 1868 GP240GH Swing Check Valve, DN250, PN63, Bolted Bonnet

1.0619 Swing Check Valve, BS 1868, DN600, PN16, RF Ends

API 6D ASTM A216 WCB Swing Check Valve, 2 Inch, Class 900

API 6D Full Bore Swing Check Valve, 4 Inch, Class 300, RF

ASTM A216 WCB Swing Check Valve, 6IN, 300 LB, Full Bore

Swing Check Valve, Lever Counter Weight, 1.4308, DN200 PN16, RF

Swing Check Valve, Lever Counter Weight Hydraulic Damping Cylinder

1.4408 Swing Type Check Valve, DIN 3356, DN150, PN16, RF Ends