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12 Months Warranty for New Products
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Hermetic Spun Copper Design
Magnetic Checking Action
Built-In 30 Mesh Stainless Steel Strainer
Can Be Installed In Any Position
Inlet Connection Size1-1/8” ODF Solder
Outlet Connection Size1-1/8” ODF Solder
Maximum Working Pressure (psig)680
Nominal Tons R-22 Suction 40°F @ 1 psiSuction 6, Liquid 51
Nominal Tons R-404A 40°F @ 2 psiDischarge 10.55, Suction 5.04, Liquid 34.68
Nominal Tons R-410A 40°F @ 2 psiDischarge 14.27, Suction 7.2, Liquid 50.85
ApprovalsUL/CUL File Number SA5312
Ask questions
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- Q: Are there free trial or sample giveaway activities?
A: We regularly organize free trials or sample giveaways. You can stay informed about these activities and apply to participate by following our official announcements, emails, or social media channels.
- Q: What payment methods do you accept?
A: We accept various payment methods, including major credit cards (Visa, Mastercard, American Express), debit cards, and digital payment platforms such as PayPal, Apple Pay, and Google Pay. The available payment methods will be displayed during the checkout process.
- Q: Do you have a mobile app for easier shopping?
A: We currently do not support it, but we have a Progressive Web App (PWA) and a well-adapted mobile version of our website. Additionally, we are in the process of developing a mobile application for iOS and Android devices. Our mobile app will provide a convenient and user-friendly shopping experience, including personalized recommendations, easy navigation, and order tracking features.
Reviews
- R
Rebecca L Coyle
Dec 15, 2025
EMERSON Check Valve ACK-18I got it for a steal!HelpfulUnhelpful - A
Alan Johnson
Apr 15, 2025
EMERSON Check Valve ACK-18Simple and straightforward navigation.HelpfulUnhelpful - W
Wendy Duncan
May 15, 2024
EMERSON Check Valve ACK-18I'm so happy, I'm over the moon!HelpfulUnhelpful - N
Nicholas Edgeworth
Dec 21, 2023
EMERSON Check Valve ACK-18Customer service as good and part was delivered as promised.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
EMERSON Check Valve ACK-18All was ok! No problems whatsoever.HelpfulUnhelpful
EMERSON Check Valve ACK-18
✔ In Stock (Can ship in 5-7 days)

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

