The ALC® is an in-line, spring assisted, center guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow. The lightweight compact design fits between mating flanges and meets API 594 face-to-face dimensions. The ALC® is an easy to maintain check valve for applications involving liquids, gases or steam.

ALC® Wafer Check Valve, Nominal Size: 2 IN, Connection Type: Raised Face, Pressure Rating: 0.5 PSIG Cracking, Class 150/300 Pressure Class, Carbon Steel Body Material, Trim Material: 316 Stainless Steel Disc, Seat Material: 316 Stainless Steel, Material Standard: Body: ASTM A216 Grade WCB, Industry Standards: API 594, ANSI B16.34, B16.5, MSS-SP-61, 2.38 IN Height, Lead Free: No, Other Physical Dimension: 4 IN Diameter

• API 594 face-to-face dimensions
• Wafer RF ends
• Spring-assisted silent closing
• Horizontal or vertical installation
• Sizes 2 thru 24 IN
• ASME class 150 and 300
• Standard body materials: A216 WCB, A351 CF8M
• Stainless steel seat, disc and bushing
• Nitronic 60 stem
• Inconel® X-750 spring
• 0.5 PSI cracking pressure spring
• Seat leakage per MSS SP-61
• Tapped holes in body for lifting lugs
• Axial flow
• Nozzle style

• Catalog https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/DFT_522H1B4A5_Catalog.pdf
• Specification Sheet https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/DFT_522H1B4A5_Specification_Sheet.pdf