Reduced pressure principle backflow preventer (RP)

• CSA: B64.4
• ASSE: 1013
• Highest hazard protection: high or severe
• Back pressure resistant: yes
• Continuous pressure resistant: yes
• Field testing required: yes

Overview/Benefits

• Provide reliable protection from both back siphonage and back pressure.
• Are generally used in locations where an air gap is impractical.
• Leaks are easily detected in case of failure.
• Requires access to a floor drain.

Application examples

• Cement plant
• Dental surgery clinic
• Hospital
• Printing house
• Henhouse
• Chemical factory