City of Frisco Engineering Standards

2.11 DRAIN VALVES:
A. Bronze bodied globe valves with rubber seats and threaded IPS pipe connections with a 125
W.O.G. rating. Valve stems shall be equipped with a round wheel handle.
B. Manufacturer: Nibco or approved equal.
2.12 QUICK COUPLER VALVES AND KEYS:
A. Valves: One-inch (1") bronze bodied valves with a rubber seat and locking vinyl cover.
B. Keys: Bronze construction with 1” MIP x ¾” FIP threads.
C. Manufacturer: RAINBIRD 44LRC or approved equal.
2.13 REINFORCEMENT STAKES: Galvanized steel pipe 1-inch diameter, Sch. 40. Secure to QCV
with stainless steel worm gear clamps.
2.14 ROTARY HEADS: At the discretion of the City of Frisco, multi-stream multi-trajectory rotary
nozzles, oscillating stream nozzles, bubbler systems, drip systems and rotor heads shall be
installed on all irrigation systems. The city reserves the right to require efficient irrigation
products where suitable.
A. High impact plastic gear driven rotary heads with a 3/4" IPS connection. Head shall have
interchangeable nozzles. Nozzle as specified on plans.
B. Manufacturer: Hunter PGP or approved equal.
2.15 SPRAY HEADS:
A. Pop-up spray heads, 4" or 12" pop-up assembly as shown with a poly carbonate body.
Nozzles shall be efficient technology nozzles such as multi-stream multi-trajectory rotary
nozzles, oscillating stream nozzles or other nozzles with a minimum precipitation rate of
1inch per hour and .7 minimum distribution uniformity Refer to plans for size.
B. Manufacturer: Hunter MP Rotator, Toro Precision Series, and RAINBIRD Rotary nozzles.
Series or approved equal.
2.16 ELECTRIC VALVES:
A. Normally closed glass filled nylon body valve with a Buna N reinforced diaphragm fitted
with a 24 volt, ¼ amp solenoid in a waterproof housing and pressure regulating module.
B. Manufacturer: RAINBIRD PEB-PRS-B. Refer to plan for size or approved equal.
2.17 VALVE BOXES:
A. Electric Valves:
1. 12 in. x 17 in. x 12 in. deep plastic valve box with locking lid and extensions as required.
2. Manufacturer: Ametek or approved equal.
City of Frisco May 2012
Standard Technical Specification Irrigation System 328000-6