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3. The body of the sprinkler shall be constructed of non-corrosive heavy duty Cycolac. A filter screen shall be in the nozzle piston. All sprinkler parts shall be removable through the top of the unit by removal of a threaded cap. D. Pop-Up Rotor Heads (Rainbird 5000 Series) shall be full and/or part circle gear driven rotary type. Part circle nozzles shall be adjustable from 40 degree to 360 degree arc. All sprinklers shall be capable of 5% radius adjustment. Each sprinkler shall be equipped with a rubber cover, check valve, and the nozzle shall elevate 4" when in operation. Retraction shall be achieved by a heavy duty stainless steel retraction spring. The sprinkler shall have a riser seal and a wiper which permits limited flushing on the down stroke to clear away debris from the riser. Rotation shall be accomplished by a sealed, oil packed assembly isolated from the water supply. The sprinkler housing shall be of a high impact molded plastic with a 3/4" NPT connection. 2.06 ELECTRICAL VALVES A. Series and Manufacturer 1. RainBird Manufacturer 2. PGA Series Diaphragm Valves Electrically activated remote control valve (size as required) shall be of cycolac construction with stainless steel trim, normally closed with manual bled plug and manual control (cross handle on 1-1/2" and 2" models; screwdriver adjustment on 1" model). Solenoid shall be 3.5 watt, 24 volt A.C. with waterproof molded coil and removable from valve without running coil and twisting wire. Diaphragm shall be of rubber material. Tir- Act solenoid porting shall prevent a continuous flow of water through the ports during operation. Inlet port to solenoid shall be filtered with self-flushing stainless steel screen, removable from outside of valve body for maintenance. All parts shall be serviceable without removing valve from the line. Valve shall have no external plumbing or tubing and may be installed at any angle without affecting valve operation. 2.07 VALVE BOXES A. Valve boxes for electric and manual valves shall be Ametek plastic boxes or approved equal with green covers and designed for installation with irrigation systems. The valve box shall be large enough to provide at least two inches of clearance around all valve parts. The word "irrigation" shall be imprinted in the valve box cover. Covers for valve boxes shall have an anti-theft locking mechanism. 2.08 AUTOMATIC CONTROLLER (ELECTRIC) A. Series and manufacturer 1. RainBird Manufacturer 2. ESP-LX Modular Series B. The sprinkler controller shall provide for complete automatic operation of the sprinkler system. The controller shall be wall mounted type, painted forest green or approved equal. Controller shall have a station capacity as noted. Each station shall have an independent time control with a 1 minute to 4 hour timing (in one minute increments). Minor timing adjustments shall be made from the face of the controller with no disassembly necessary. The controller shall provide for rapid advance between stations. PAGE 110 OF 130 BID No. 08-10-01