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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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525R1B4B5 N/A 12 in300 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Buna-N (75 dur.) N/A N/A N/A QUOTE
525R1B4D5 N/A 12 in300 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Viton® N/A N/A N/A QUOTE
525R1B4C5 N/A 12 in300 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A N/A N/A QUOTE
525R1B4C3 N/A 12 in300 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A N/A N/A QUOTE
522S1A4B5 0 N/A 14 in350 mm N/A 150 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
522S1A4D5 0 N/A 14 in350 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522T1A4D5 0 N/A 16 in400 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525T1A4C5 0 N/A 16 in400 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
525T1A4C3 0 N/A 16 in400 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
522U1B4D5 0 N/A 18 in450 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522U1B4G5 0 N/A 18 in450 mm N/A 300 N/A A216 Grade WCB N/A 316 SS N/A Teflon Encapsulated Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522U1B4A3 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
522W1A4D5 0 N/A 20 in500 mm N/A 150 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522X1A4B5 0 N/A 24 in600 mm N/A 150 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
522X1A4B3 0 N/A 24 in600 mm N/A 150 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
525X1A4B5 0 N/A 24 in600 mm N/A 150 N/A A351 CF8M N/A 316 SS N/A Buna-N (75 dur.) N/A CAD Icon (for items table) N/A N/A QUOTE
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