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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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525H1B4A5 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525H1B4D5 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522H1B4A5 0 N/A 2 in50 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
522H1B4D5 0 N/A 2 in50 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525J1B4A5 0 N/A 2.5 in65 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525J1B4D5 0 N/A 2.5 in65 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522J1B4A5 0 N/A 2.5 in65 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
522J1B4D5 0 N/A 2.5 in65 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4A5 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4D5 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522K1B4A5 0 N/A 3 in80 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
522K1B4D5 0 N/A 3 in80 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525L1B4A5 0 N/A 4 in100 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525L1B4D5 0 N/A 4 in100 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522L1B4A5 0 N/A 4 in100 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
522L1B4D5 0 N/A 4 in100 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525N1B4A5 0 N/A 6 in150 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525N1B4D5 0 N/A 6 in150 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522N1B4A5 0 N/A 6 in150 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
522N1B4D5 0 N/A 6 in150 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525O1B4A5 0 N/A 8 in200 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525O1B4D5 0 N/A 8 in200 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522O1B4A5 0 N/A 8 in200 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
522O1B4D5 0 N/A 8 in200 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A A351 CF8M/Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525P1B4A5 0 N/A 10 in250 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
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
522H1B4G5 0 N/A 2 in50 mm N/A 150 300 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
522H1B4Z5 0 N/A 2 in50 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525H1B4B5 0 N/A 2 in50 mm N/A 150 300 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
525H1B4C5 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
525H1B4Z5 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525H1B4A3 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525H1B4D3 0 N/A 2 in50 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522J1B4B5 0 N/A 2.5 in65 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
522J1B4C5 0 N/A 2.5 in65 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
522J1B4Z5 0 N/A 2.5 in65 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525J1B4C5 0 N/A 2.5 in65 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
522K1B4B5 0 N/A 3 in80 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
522K1B4C5 0 N/A 3 in80 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
522K1B4G5 0 N/A 3 in80 mm N/A 150 300 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
522K1B4Z5 0 N/A 3 in80 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4C5 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4Z5 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4A3 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A 316 SS N/A CAD Icon (for items table) N/A N/A QUOTE
525K1B4D3 0 N/A 3 in80 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522L1B4B5 0 N/A 4 in100 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
522L1B4C5 0 N/A 4 in100 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
522L1B4G5 0 N/A 4 in100 mm N/A 150 300 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
522L1B4Z5 0 N/A 4 in100 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
522L1B4D3 0 N/A 4 in100 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525L1B4B5 0 N/A 4 in100 mm N/A 150 300 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
525L1B4C5 0 N/A 4 in100 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
525L1B4G5 0 N/A 4 in100 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Teflon Encapsulated Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525L1B4D3 0 N/A 4 in100 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522N1B4B5 0 N/A 6 in150 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
522N1B4C5 0 N/A 6 in150 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
522N1B4G5 0 N/A 6 in150 mm N/A 150 300 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
522N1B4Z5 0 N/A 6 in150 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
525N1B4B5 0 N/A 6 in150 mm N/A 150 300 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
525N1B4C5 0 N/A 6 in150 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
522O1B4B5 0 N/A 8 in200 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
522O1B4C5 0 N/A 8 in200 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
522O1B4G5 0 N/A 8 in200 mm N/A 150 300 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
522O1B4Z5 0 N/A 8 in200 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Zelon® N/A CAD Icon (for items table) N/A N/A QUOTE
522O1B4A3 0 N/A 8 in200 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
525O1B4C5 0 N/A 8 in200 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
522P1B4B5 0 N/A 10 in250 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
522P1B4D5 0 N/A 10 in250 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
522P1B4C5 0 N/A 10 in250 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
525P1B4D5 0 N/A 10 in250 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A Viton® N/A CAD Icon (for items table) N/A N/A QUOTE
525P1B4C5 0 N/A 10 in250 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
525P1B4C3 0 N/A 10 in250 mm N/A 150 300 N/A A351 CF8M N/A 316 SS N/A EPDM N/A CAD Icon (for items table) N/A N/A QUOTE
522R1B4B5 N/A 12 in300 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Buna-N (75 dur.) N/A N/A N/A QUOTE
522R1B4D5 N/A 12 in300 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A Viton® N/A N/A N/A QUOTE
522R1B4C5 N/A 12 in300 mm N/A 150 300 N/A A216 Grade WCB N/A 316 SS N/A EPDM N/A N/A N/A QUOTE
522R1B4A3 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
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
1 - 116 of 116 | Results Per Page | View | Unit of Measure
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