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Cash Acme 1/2" Vacuum Relief Drilled Vent, With Dust Cover

Part 518398
Brand Cash Acme
Please Note
In lower 48 states

Product Details

  • Cash Acme® 1/2" Vacuum Relief Drilled Vent With Dust Cover
  • Designed To Protect Hot Water Supply Systems And Pressure Vessels Against Negative Pressure
  • Low Profile Design With Slotted Vent Hole
  • Max Incoming Pressure 200 PSI
  • Max Temp 210° F
  • Certified To ANSI Z21.22/CSA 4.4
  • Prevents Internal Vacuum Conditions
  • Guards Against Siphonage, Burnt Out Heaters And Collapsing Of Storage Tanks And Negative Pressure
  • Opens Quickly In Emergency Situations On A 1" Mercury Vacuum
  • Every Valve Is Tested For Performance Prior To Shipping
  • Low Profile Design With Slotted Vent Hole
  • The Vent Hole Is Protected By A Circular Dust Cover That Is Approximately 1.75" Dia
  • Mfg #22397-0000LF
California residents: Prop 65 Warnings


This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Product Specs

Make & Model
UPC 697285020092
Country of Origin TAIWAN
Brand Cash Acme
UNSPSC 40141606
Manufacturer Part No 22397-0000LF
UPC Code 697285020092
Package Contents Valve
Pressure Rating (psi) 200 PSI
Connection Type NPT
Material Brass
Type Relief Valve
Application Relief Valve For Water Supply
Size 0.5"
Assembled Dimensions
Height 2.5"
Length 1.75"
Certifications & Standards
GSA Scheduled Yes
TAA/BAA Compliant Yes
ADA Approved No
Made in the USA No
AbilityOne No
UL Listed No
Hazardous No
Packaging Dimensions
Width 1.750
Weight Measure LB
Weight 0.320
Length 1.750
Height 2.500
Size Measure IN

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