- CSA: B64.5.1
- ASSE: 1048
- Highest hazard protection: moderate
- Back pressure resistant: yes
- Continuous pressure resistant: yes
- Field testing required: yes
Overview/Benefits
- Provide reliable protection from both siphonage and back pressure for low or moderate risk fire protection systems.
- Can be installed horizontally and vertically if approved by a recognized agency (US, CSA, etc.).
- Can be placed in a vault if the test cocks are sealed.
- For models of 2 1/2 ″ and more, assembly with OSY (Open Stem & Yoke) or butterfly valves ready to receive added supervision.
Application examples
The majority of fire sprinkler systems or fire hoses water supply networks:
- Office tower
- Arena
- Shopping mall
- College, school, university
- Car dealer
- Motel
