- CSA: B64.3
- ASSE: 1012
- Highest hazard protection: moderate
- Back pressure resistant: yes
- Continuous pressure resistant: yes
- Field testing required: no
Overview/Benefits
- Provide reliable protection from both back siphonage and back pressure if minor hazards risk exist.
- Do not use in place of Reduced pressure principle backflow preventer (RP).
- Leaks are easily detected in case of failure.
- Should not be installed below ground level, in a pit or a vault.
Application examples
- Terminal
- Chemical plant
- Petroleum product storage
- Sprinkler line where there is a risk of freezing with glycol gel
