Tyco G1 Sprinkler Guard - Zinc Chromate

The Model G1 & G4 Sprinkler Guards (Ref. Figure 1) are designed for use with specific types of Series TY-B, TY- FRB, TY-L, and TY-FRL Sprinklers that may be located in areas that make them susceptible to mechanical or physical damage. Table A provides compatibility details.

The Model G1/S1 & G4/S3 Sprinkler Guards with Shields (Ref. Figure 2), in addition to providing protection from mechanical or physical damage, shields the sprinkler from water spray of higher elevation sprinklers (e.g., rack storage sprinkler installations). When the G1/S1 and G4/S3 are used with the Series TY-B, TY-FRB, TYL, and TY-FRL Sprinklers shown in Table A, the assemblies form Upright Inter- mediate Level Sprinklers intended for use in fire sprinkler systems designed in accordance with the standard instal- lation rules recognized by the applica- ble Listing agency (i.e., UL Listing is based on NFPA requirements).

The G1 and G4 are a redesignation for the Gem F938 & F937, and the G1/S1 & G4/S3 are a redesignation for the Gem F938/Q-76 and F937/Q-75.