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Current Specials


Conbraco 4A-500 Freeze Resistant PVB Backflow Preventer 1-1/2 in. FPT | CDC4A-507-A2F

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Sales Price $376.37 Our Price $745.95 You save 50%


The Apollo Pressure Vacuum Breakers prevent contamination of the potable water supply due to back-siphonage. An integral freeze protection relief valve serves to reduce the possibility of damage due to intermittent freezing conditions. The modular check valve cartridge provides a captured spring, a replaceable seat and a reversal silicone seat disc. This Made in America assembly features Apollo ball valves with stainless steel handles and nuts as standard and carries the five-year Apollo factory warranty.

  • Low pressure loss documented by independent approval agencies
  • Built-in freeze resistance feature standard
  • Easily removable modular check valve cartridge
  • Captured stainless steel springs
  • Apollo ball valves w/ SS handles & nuts standard
  • Test cocks located for easy draining
  • Corrosion resistant
  • No special tools required
  • Unique canopy detachment
  • Conbraco Industries, Inc. continues to operate as Apollo Valves
  • Designed, cast, machined, assembled and tested IN THE USA
Approvals - Standards
  • ASSE 1020 - (1/2" - 2")
  • CSA B.64.1.2 - (1/2" - 2")
Performance Rating
  • Maximum Operating Pressure 150 psi
  • Temperature Range 33 F - 140 F
Part Name & Material
  • Body, Ball Valves, Test Cocks: Bronze C84400 or C89836
  • Canopy: UV-Resistant ABS
  • Bonnet: Glass-Filled PPO
  • Check Valve Cartridge: Glass-Filled PPO
  • Springs: Stainless Steel
  • Seat Discs: Chloramine-resistant Silicone
  • Float: Glass-Filled Polypropylene
  • O-rings: Chloramine-resistant EPDM
More Information
Brand Conbraco
Test Cocks 2 FEMALE
Max Working Pressure 150 PSI
Hydrostatic Test Pressure 300 PSI
Temperature Range 33F to 180F
Main Valve Body Materials Bronze
Elastomers Silicone
Springs Stainless Steel
Advance Features Freeze Resistant
Warranty 5 Years
Size 1-1/2 in.
Connection FPT
Lead Free Not Lead Free
Manual (1.55 MB)
Specifications (161.72 kB)
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