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Emerson ACK 18 ACK Check Valve

SKU kpi002-064991
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Product details

SKU: kpi002-064991
Manufacturer: White Rodgers
Manufacturer Part Number: 64991
Model Number: ACK 18
GTIN: 681344649911

Product description

The ACK check valve is a normally closed magnetic check valve that prevents reverse refrigerant flow in liquid lines and compressor discharge lines.


  • Copper Connection Size 1-1/8” ODF Solder
  • Hermetic Spun Copper Design
  • Magnetic Checking Action
  • Built-In 30 Mesh Stainless Steel Strainer
  • Can Be Installed In Any Position

Additional Information

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

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