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.
Features:

• One universal size accommodates Fig. 69 sizes 1" through 2".
• Simple design allows for quick installation on existing sprinkler systems.

• Snap surge restrainer onto the Fig. 69 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.

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.
Features:

• One universal size accommodates Figure 69 sizes 3/4" through 2".
• Simple design allows for quick installation on existing sprinkler systems.

• 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.

Hanger Service: Swivel hanger designed to support horizontal piping from angled structures. Listed for installation at angles between 0 and 90 degrees.
Restraint Service: May be installed as a branch line restraint per the requirements of NFPA 13. The AF777 may be installed directly to the structure or to the Fig. AF779.
Approvals: cULus Listed (UL 203 and UL 203a – 3/8" only). Complies with the hanging and restraint requirements listed in NFPA 13.
Installation:

• Install mounting bolt into structure or structural attachment and tighten hex nut until the yoke (U-Shaped Bracket) is tight against the structure or attachment.
• Thread the hanger rod or restraint rod into the hex union until it bottoms. Back rod off a maximum of one turn to allow the hex union to swivel freely.
• Adjust angle as necessary.
• If the AF777 is exposed to vibration from the piping system or the structure, jam nuts may be installed on the mounting bolt and the threaded rod.
• Fire Protection applications shall also be installed per NFPA 13 requirements.