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Hermetic spun copper design
Magnetic checking action
Built-in 30 mesh stainless steel strainer
Can be installed in any position
Compatible with all A1 class refrigerant/lubricants, as well as R-290 and R-744
Inlet Connection Size3/8” ODF Solder
Outlet Connection Size3/8” ODF Solder
Maximum Working Pressure (psig)800
Nominal Tons R-22 Suction 40°F @ 1 psiSuction 0.6, Liquid 3.1
Nominal Tons R-404A 40°F @ 2 psiDischarge 1.2, Suction, 0.5, Liquid 2.11
Nominal Tons R-410A 40°F @ 2 psiDischarge 1.63, Suction 0.72, Liquid 3.09
ApprovalsUL/CUL File Number SA5312
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Reviews
- M
Mark Lee
Dec 07, 2025
EMERSON Check Valve ACK-6genialHelpfulUnhelpful - P
Paul Mularski
Dec 06, 2024
EMERSON Check Valve ACK-6Incredible customer assistanceHelpfulUnhelpful - G
George Gurkin
Nov 29, 2024
EMERSON Check Valve ACK-6It's a piece of cake to use every day.HelpfulUnhelpful - P
Phillip Estrada
Oct 10, 2024
EMERSON Check Valve ACK-6We've finally found the right part. We'll know for sure when it arrives, and it'll be a big help.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
EMERSON Check Valve ACK-6All was ok! No problems whatsoever.HelpfulUnhelpful
EMERSON Check Valve ACK-6
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee

