Carbon Steel Check Valves, API 6D, A216 WCB, 20 IN, 900 LB

ASTM A216 WCB Swing Check Valve, ASTM A216 WCB, 20 Inch, Class 900 LB.

Valve Description
Name: Swing Type Check Valve with Lever, Counterweight, and Hydraulic Damping Cylinder
Design Standard: API 6D – Full Bore
Body Material: ASTM A216 WCB
Nominal Size: 20 Inch, DN500
Nominal Class: Class 900 LB, PN150
Connection Ends: RF Flanged Ends
Face-to-Face Dimension: As per ASME B16.10
Test and Inspection: Compliant with API 598

Features

Bolted Cover: Ensures reliable sealing and easy maintenance.
Full Bore Design: Conforms to API 6D; also available in BS 1868 standard bore.
Shaft Options: Inside or outside shaft available.
Outside Shaft Options: Can be equipped with a lever and counterweight.
Hydraulic Damping Cylinder: Suitable for larger valve sizes to ensure smooth operation and prevent water hammer.

Technical Parameters and Characteristics

Product Type: Swing Type Check Valve
Size Range: NPS 2 Inch - 24 Inch, DN50 - DN600
Design Pressure: Class 150 LB - 2500 LB, PN10 - PN420
Design Standards: BS 1868, API 6D, DIN 3352
Design Temperature: -196°C to 593°C

Material Options:
Carbon Steel: ASTM A216 WCB, ASTM A216 WCC
Low-Temperature Carbon Steel: ASTM A352 LCB, ASTM A352 LCC
High-Temperature Steel: ASTM A217 WC6, WC9, C5, C12A
Stainless Steel: ASTM A351 CF8, CF8M, CF3M, CF8C
Special Alloys: CN3MN, CK3MCUN, CN7M, ASTM A890 4A (CD3MN), 5A (CE3MN), 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 Operations