"� PART 1 - GENERAL"
[ CLIENT NAME ] [ PROJECT NAME] DATE 2.03 IRRIGATION COMPONENTS AND/OR SYSTEMS A. Spray Bodies 1. General Information a. Provide irrigation spray bodies as per the specification b. The spray bodies shall be comprised of components as outlined in this specification in order to meet the hydraulic demands and flow requirements of the irrigation zones they service. 2. Spray Bodies a. Irrigation spray body specifications include but are not limited to: 1) The spray body, stem, nozzle, and screen shall be constructed of heavy-duty and ultra-violet resistant plastic. 2) Shall have a heavy-duty strong stainless steel retract spring for positive pop-down. 3) Pressure-activated, co-molded soft elastomer wiper seal ensures a positive seal without excess “flow-by” which enables more heads to be installed on the same valve. i) Precision controlled flush at pop-down to clear debris from the unit, to assure positive stem retraction in all soil types. 4) Ratchet mechanism to allow easy nozzle pattern alignment without tools. 5) Shall include a 30 psi (2.0 bar) pressure regulating device to prevent high pressure fogging to the nozzle stream. i) Shall include markings printed on the top of the cap indicating the spray body includes an internal pressure regulating device. ii) Pressure regulating device shall be an integral part of the pop- up stem. iii) Pressure regulating device shall include a dust shroud cap separate from the flow tube to protect the pressure regulating device o-rings from contamination. iv) Pressure regulating device shall regulate nozzle pressure to 30 psi (2.0 bar) regardless of ascending, descending or fluctuating inlet pressure. v) Shall be removable through the top of the spray body. vi) The device shall regulate the nozzle pressure to 30 psi (2.0 bar) for inlet pressures ranging from 35 to 100 psi (2.4 to 6.9 bar). vii) Pressure below 35 psi (2.4 bar) shall not exceed a pressure loss of 6 psi (0.4 bar). viii) Prevents high pressure nozzle operation that causes water waste, overthrow, and detrimental performance. 6) 6” (15.2 cm) body height; 4” (10.2 cm) pop-up height. IRRIGATION COMPONENTS AND/OR SYSTEMS SECTION 32 84 23 PAGE 1 [ CLIENT NAME ] [ PROJECT NAME] DATE 7) Operating range of 2.5 to 24 feet (0.8 to 7.3m). 8) Operating pressure range of 15 to 70 psi (1.0 to 4.8 bar). 9) Exposed surface diameter shall measure 2 1/4“ (5.7 cm). 10) Flow by rating of 0 at 8 psi (0.6 bar) or greater, 0.1 gpm (0.02 m3/h; 0.06 l/s) otherwise. 11) Shall include ½” (15/21) NPT female threaded bottom and side inlets. 12) All spray body components shall be removable from the top without special tools in order to provide quick and easy flushing and maintenance of the sprinkler. 13) The spray body shall have a pre-installed flush plug. i) The plug shall prevent debris from clogging the sprinkler during installation and allow for the system to be flushed before nozzling. ii) The plug shall be bright orange in color and constructed of polypropylene material. 14) Shall include a five-year trade warranty. IRRIGATION COMPONENTS AND/OR SYSTEMS SECTION 32 84 23 PAGE 2