Find My Check Valve
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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Size (mm)

ENDS

Cv

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ASME CLASS

Size

Cracking Pressure CP

Body

ENDS

Cv

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522W1B4A5 N/A 300 N/A 20.0 inDN 500 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 6050
525W1A4A5 N/A 150 N/A 20.0 inDN 500 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 3750
525W1B4A5 N/A 300 N/A 20.0 inDN 500 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 6050
522X1A4A5 N/A 150 N/A 24.0 inDN 600 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 5150
522X1B4A5 N/A 300 N/A 24.0 inDN 600 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 8325
525X1A4A5 N/A 150 N/A 24.0 inDN 600 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 5150
525X1B4A5 N/A 300 N/A 24.0 inDN 600 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 8325
522K1B4A5 N/A 150 300 N/A 3.00 inDN 80 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 260
525K1B4A5 N/A 150 300 N/A 3.00 inDN 80 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 260
525K1B4D5 N/A 150 300 N/A 3.00 inDN 80 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A
522K1B4D5 N/A 150 300 N/A 3.00 inDN 80 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 1310
522L1B4A5 N/A 150 300 N/A 4.00 inDN 100 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 430
525L1B4A5 N/A 150 300 N/A 4.00 inDN 100 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 430
525L1B4D5 N/A 150 300 N/A 4.00 inDN 100 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A
522L1B4D5 N/A 150 300 N/A 4.00 inDN 100 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 1310
522N1B4A5 N/A 150 300 N/A 6.00 inDN 150 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 825
525N1B4A5 N/A 150 300 N/A 6.00 inDN 150 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 825
525N1B4D5 N/A 150 300 N/A 6.00 inDN 150 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A
522N1B4D5 N/A 150 300 N/A 6.00 inDN 200 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 1310
522O1B4A5 N/A 150 300 N/A 8.00 inDN 200 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 1310
525O1B4A5 N/A 150 300 N/A 8.00 inDN 200 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A 1310
525O1B4D5 N/A 150 300 N/A 8.00 inDN 200 N/A 0.034 bar0.5 psig N/A A351 CF8M N/A Wafer (RF) N/A
522O1B4D5 N/A 150 300 N/A 8.00 inDN 200 N/A 0.034 bar0.5 psig N/A A216 WCB N/A Wafer (RF) N/A 1310
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