20 Inch Swing Check Valve, ASTM A216 WCB, API 6D, CL 150 LB

Buy 20 Inch Swing Check Valve from a leading factory in China. This valve features DN500 size, PN20 pressure rating, and Class 150 LB flanges, made from high-quality ASTM A216 WCB and ASTM A216 WCC materials. It complies with API 6D standards and includes a counterweight for optimal performance. RF flanged connections ensure easy installation and secure sealing for various industrial applications.

Tags:

• 20 Inch Check Valve
• Class 150 LB Check Valve
• ASTM A216 WCB Check Valve
• API 6D Check Valve

Name: Swing Type Check Valve with counterweight.
Design: API 6D – full bore.
Body: ASTM A216 WCB.
Nominal size: 20 Inch.
Nominal class: CL 150 LB.
Connection ends: RF Flanged ends.
Face to face: as per ASME B16.10.
Test and inspection: API 598.

Other features
Bolted cover
API 6D – full bore, BS 1868 – standard bore
Can be inside shaft or outside shaft
Outside shaft: could be mounted lever + counterweight
Large size of check valve could be mounted hydraulic damping cylinder

Technical Parameters and Characteristics
Product type: Swing type check valve.
Size range: 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℃.
Material: 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 end: ASME B16.5, ASME B16.25, EN1092 series.
Application: electric power, petroleum refining, petrochemical engineering, offshore oil, chemical engineering