• Wafer Check Valves
The ALC® is an in-line, spring assisted, single 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. Tapped holes are provided in the body for lifting lugs to assist with installation. (10" & larger only)

All temperature ratings are for standard valves.

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Prod. #

Class

Size

Dimension A

B (Dia.)

Cv

Cracking Pressure CP

Body

N/A 150/300 N/A 10 inDN 250 N/A 5.75 in146 mm N/A 14 in359 mm N/A 1875 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150/300 N/A 10 inDN 250 N/A 5.75 in146 mm N/A 14 in359 mm N/A 1875 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150/300 N/A 12 inDN 300 N/A 7.12 in181 mm N/A 16 in419 mm N/A 2525 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150/300 N/A 12 inDN 300 N/A 7.125 in181 mm N/A 16 in419 mm N/A 2525 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150 N/A 14 inDN 350 N/A 7.25 in184 mm N/A 17 in448 mm N/A 2950 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 300 N/A 14 inDN 350 N/A 8.75 in222 mm N/A 19 in483 mm N/A 3275 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150 N/A 14 inDN 350 N/A 7.25 in184 mm N/A 17 in448 mm N/A 2950 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 300 N/A 14 inDN 350 N/A 8.75 in222 mm N/A 19 in483 mm N/A 3275 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150 N/A 16 inDN 400 N/A 7.5 in191 mm N/A 20 in511 mm N/A 3330 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 300 N/A 16 inDN 400 N/A 9.13 in232 mm N/A 21 in537 mm N/A 4100 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150 N/A 16 inDN 400 N/A 7.5 in191 mm N/A 20 in516 mm N/A 3330 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 300 N/A 16 inDN 400 N/A 9.125 in232 mm N/A 20 in516 mm N/A 4100 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150 N/A 18 inDN 450 N/A 8 in203 mm N/A 22 in546 mm N/A 3475 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 300 N/A 18 inDN 450 N/A 10.38 in264 mm N/A 23 in591 mm N/A 5040 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150 N/A 18 inDN 450 N/A 8 in203 mm N/A 22 in546 mm N/A 3475 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 300 N/A 18 inDN 450 N/A 10.375 in264 mm N/A 23 in591 mm N/A 5040 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150/300 N/A 2 inDN 50 N/A 2.38 in60 mm N/A 4 in108 mm N/A 120 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150/300 N/A 2 inDN 50 N/A 2.38 in60 mm N/A 4 in108 mm N/A 120 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150/300 N/A 2.5 inDN 65 N/A 2.62 in67 mm N/A 5 in127 mm N/A 205 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150/300 N/A 2.5 inDN 65 N/A 2.62 in67 mm N/A 5 in127 mm N/A 205 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150 N/A 20 inDN 500 N/A 8.62 in219 mm N/A 24 in603 mm N/A 3750 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 300 N/A 20 inDN 500 N/A 11.5 in292 mm N/A 26 in651 mm N/A 6050 N/A 0.5 psig0.034 bar N/A A216 WCB
N/A 150 N/A 20 inDN 500 N/A 8.625 in219 mm N/A 24 in603 mm N/A 3750 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 300 N/A 20 inDN 500 N/A 11.5 in292 mm N/A 26 in651 mm N/A 6050 N/A 0.5 psig0.034 bar N/A A351 CF8M
N/A 150 N/A 24 inDN 600 N/A 8.75 in222 mm N/A 28 in715 mm N/A 5150 N/A 0.5 psig0.034 bar N/A A216 WCB
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