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  • ALC® Wafer Check Valves
The ALC® Check Valve is a non-slam 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® Check Valve is an easy-to-maintain check valve for applications involving liquids, gases, or steam. Can be used in horizontal or vertical installation. Tapped holes are provided in the body for lifting lugs to assist with installation (10" and larger sizes only).

Standard Features:
  • Sizes 2" thru 24"
  • API 594 Face-to-Face dimensions
  • RF Wafer ends
  • ASME Class 150 and 300
  • Horizontal or vertical installation
  • Standard body materials:
    • A216 Grade WCB carbon steel
    • A351 CF8M stainless steel
  • Stainless steel seat, disc & bushing
  • Spring-assisted silent closing
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522P1B4A5 0 N/A 10 in250 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525R1B4A5 N/A 12 in300 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Metal N/A N/A N/A QUOTE
522R1B4A5 N/A 12 in300 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Metal N/A N/A N/A QUOTE
525S1A4A5 0 N/A 14 in350 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525S1B4A5 0 N/A 14 in350 mm N/A 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522S1A4A5 0 N/A 14 in350 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522S1B4A5 0 N/A 14 in350 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525T1A4A5 0 N/A 16 in400 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525T1B4A5 0 N/A 16 in400 mm N/A 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522T1A4A5 0 N/A 16 in400 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522T1B4A5 0 N/A 16 in400 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525U1A4A5 0 N/A 18 in450 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525U1B4A5 0 N/A 18 in450 mm N/A 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522U1A4A5 0 N/A 18 in450 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522U1B4A5 0 N/A 18 in450 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525W1A4A5 0 N/A 20 in500 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525W1B4A5 0 N/A 20 in500 mm N/A 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522W1A4A5 0 N/A 20 in500 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522W1B4A5 0 N/A 20 in500 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525X1A4A5 0 N/A 24 in600 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525X1B4A5 0 N/A 24 in600 mm N/A 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522X1A4A5 0 N/A 24 in600 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522X1B4A5 0 N/A 24 in600 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
522H1B4B5 0 N/A 2 in50 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Buna-N (75 dur.) N/A CAD Icon (for items table) N/A N/A QUOTE
522H1B4C5 0 N/A 2 in50 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
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