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Page 4 of 8 TFP51 O ORDER LENGTHS: Operation 2-1/2" to 48" (63,5 to 1219,2 mm) _ IN 1/4' (6,4 mm) INCREMENTS 4' i 1/8' (101,6 x 3,2 mm) When the Series DS -1 is in service, FACE OF FACE OF 1 -3/4' DIA. water is prevented from entering the — SPRINKLER MOUNTING — (44,5 mm) assembly by the Plug & Belleville Seal- __ -i L FITTING SURFACE \ ing Assembly (Ref. Figure 1) in the 1 Inlet of the Sprinkler. The glass Bulb ! � ll1!,;I dui i1 3" DIA. contains a fluid that expands when ex- i;I1 Jai I (76,2 mm) posed to heat. When the rated tem- r / 3.5° perature is reached, the fluid expands ' SPRINKLER FITTING sufficiently to shatter the glass Bulb, -' (REFER TO DESIGN CENTERLINE 5/16" and the Bulb Seat is released. The CRITERIA SECTION) OF WATERWAY (7,9 mm) compressed Spring is then able to ex- FIGURE 9 pand and push the Water Tube as well TY3335 HORIZONTAL SIDEWALL w/ STANDARD ESCUTCHEON as the Guide Tube outward. This action simultaneously pulls inward on the Yoke, withdrawing the Plug & Belleville ORDER LENGTHS: FACE OF Seal from the Inlet allowing the sprin- 1/2' to 45-3/4" (12,7 to 1162,1 mm) MOUNTING kler to activate and flow water. IN 1 /4' (6,4 mm) INCREMENTS SURFACE 4- 13/16 "± 1/8' (122,2 * 3,2 mm) FACE OF --"2-1/2" DIA. SPRINKLER (63,5 mm) -1 -i FITTING \ 1 Design " DIA. Criteria � ' �1I1I I • —I ' ii�ll hill / 3-1/2 (88,9 mm) The Series DS -1 Sprinklers are in- ,- - � 3.5° tended for use in fire sprinkler systems SPRINKLER FITTING NI designed in accordance with the -- -'--- (REFER TO DESIGN CENTERLINE 5/16' standard installation rules recognized CRITERIA SECTION) OF WATERWAY (7,9 mm) by the applicable Listing or Approval FIGURE 10 agency (e.g., UL Listing is based on TY3335 HORIZONTAL SIDEWALL w/ DEEP ESCUTCHEON NFPA 13 requirements). The Series DS -1 Dry Type Sprinkler is ORDER LENGTHS: to be installed in the 1 inch NPT outlet 5' to 48" (127,0 to1219,2mm) or run of malleable or ductile iron IN 1/4" (6,4 mm) INCREMENTS MINIMUM threaded tee fittings that meet the di- 2-1/4"(57,2mm) mensional requirements of ANSI DEFLECTOR TO ACE OF MOUNTING B16.3 (Class 150) or cast iron — SPRINKLER SURFACE threaded tee fittings that meet the di- _ 1 ( FITTING mensional requirements of ANSI B16.4 (Class 125) with the end sprin- ql, 'I ! kler fitting on a branch line to be i� � ! / Th7 plugged as shown in Figures 3 - 11. '- 3.5° 5/16" �� 79 6" When installing 1 inch NPT Series SPRINKLER FITTING (' DS -1 Dry Type Sprinklers on a dry pipe - = — ' (REFER TO DESIGN CENTERLINE sprinkler system, only use the side CRITERIA SECTION) OF WATERWAY outlet of maximum 2 -1/2 inch size re- FIGURE 11 ducing tee's. TY3335 HORIZONTAL SIDEWALL w/o ESCUTCHEON For wet pipe sprinkler systems, the Series DS -1 Dry Type Sprinklers may also be installed in the 1 inch NPT outlet of a Central Figure 730 Me- chanical Tee or the following Tyco Fire Products CPVC fittings: (P /N 80145) 1" x 1" NPT Female Adapter or (P /N 80249) 1 "x 1 "x 1" NPT Sprinkler Head Adapter Tee. NOTE Do not install the Series DS -1 into any other type fitting without first consult- ing the Technical Services Depart- ment. Failure to use the appropriate fitting may result in: failure of the sprin- kler to properly operate due to forma- tion of ice over the inlet Plug or binding of the inlet Plug; or, insufficient en-