Size Range: 3/4" thru 2" Figure 69, Swivel Ring Hanger
Material: Carbon steel
Finish: Pre-Galvanized per ASTM A653
Restrainer Service: Prevents vertical movement of horizontal sprinkler piping from thrust loads due to sprinkler activation. The surge restrainer is intended to be installed with Anvil’s Figure 69 Swivel Ring Hanger.
Restraint Service: May be installed as part of a branch line seismic restraint assembly per the requirements of NFPA 13. The surge restrainer is intended to be installed with Anvil’s Figure 69 Swivel Ring Hanger.
Approvals: cULus Listed (UL 203 and UL 203a). Complies with the hanging and restraint requirements listed in NFPA 13.
Features:
- One universal size accommodates Figure 69 sizes 3/4" through 2".
- Simple design allows for quick installation on existing sprinkler systems.
Installation Instructions:
- Install hanger rod or restraint rod a minimum of 1/2" beyond the bottom of the Figure 69 knurl nut.
- Snap surge restrainer onto the threaded rod above and below the knurl nut.
- The gap between the surge restrainer and service pipe shall not exceed 1/8".
- Fire Protection applications shall also be installed per the requirements of NFPA 13.
Ordering: Specify figure number and description.
AF773 Surge Restrainer Submittal
AF310 Surge Restrainer
AF090R Retrofit Restraining Strap
AF090 Restraining Strap
AF777 Swivel Attachment