Swing check valve
Type 491 ANSI cl. 150 – 600

Swing check valve series 491, flanged acc. to ANSI B16.5 cl. 150 – 600RF, temperature range for carbon steel max. 350°C, for stainless steel max. 400°C.


Type: Swing check valve series 491

Design: with double flange

Sizes: 2″ – 16″

Pressure class: ANSI cl. 150, 300, 600 150, 300, 600

Body material: Carbon steel A216 WCB Stainless steel A182/CF8M Low temperature application A352/LCB

Connections: Flanges acc. to ANSI/ASME B16.5 cl. 150/300/600RF

Technical datasheet
Operation and maintenance manual