Institutional Spray Sprinkler

Rugged, water-saving sprinklers designed for commercial, institutional, and public area applications.

Exceptional strength, innovative features…just the need for high traffic areas. Features like a positive-seal flush cap with an innovative pull-up design that keeps debris out. A high quality, multi-functional, pressure-activated wiper seal. True pressure regulation under a wide range of environmental and pressure conditions to reduce water waste. An in-stem regulator that acts as a flow control device if the nozzle is removed. A super heavyduty check valve assembly that eliminates the potential liability issues of low head drainage. The most powerful retraction spring in its class. Sounds like a lot in a spray sprinkler? How about one more great feature–just like all other Hunter Institutional Series™ irrigation products, it carries a 5-year warranty.

Built-in in-stem pressure regulation

Maximum nozzle efficiency regardless of inlet pressure

Heavy-duty body and cap construction

Multi-thread buttress design withstands the harshest environments

Pressure activated, multi-function, no flow-by wiper seal

Easy to remove and clean; treated with UV inhibitors to ensure long life

Compatible with All Female Threaded Nozzles

Accepts adjustable, fixed and specialty nozzles from Hunter and all major brands

Optional factory-installed drain check valve for up to 10 feet elevation change

Eliminates landscape damage from flooding and erosion

Ratcheting riser for quick arc alignment

Make adjustments while sprinkler is operating

Heavy-duty spring

For positive retraction under any conditions

Innovative pop-top flush plug design

Allows limited flow permitting controlled directional flushing

1/2″ standard side inlet on 6″ and 12″ models

Installation convenience for deep seated bodies

INSTITUTIONAL SPRAY MODELS

INST-00 – Shrub

INST-04 – 4″ Pop-up (10 cm)

INST-06 – 6″ Pop-up (15 cm)

INST-12 – 12″ Pop-up (30 cm)

 DIMENSIONS

• Overall height:

INST-04 – 5 7⁄8″ (15.5 cm)

INST-06 – 8 3/4″ (22.5 cm)

INST-12 – 16 1⁄8″ (41 cm)

• 1/2″ female inlet NPT

• Exposed diameter: 2 1/4″ (5.7 cm)

OPERATING SPECIFICATIONS

• Recommended pressure range: 15 to 100 PSI (1.0 to 6.9 bars; 103 to 689 kPa)

• Flow-by: 0 at 10 PSI (.7 bars; 68 kPa) or greater; .1 GPM (0.02 m3/hr; 0.4 l/min) otherwise

• Precipitation rates: approximately 1.5″ (38 mm) per hour

OPTIONS AVAILABLE

• Factory-installed drain check valve for up to 14′ (4.3 m) elevation change;

“Check Valve” stamped on cap for easy identification

• Field-installed drain check valve (part # 437400)

• Field-installed black rubber cover (part # 469805)

• Field-installed reclaimed water identification snap-on cover (part # 469800)

• Field-installed reclaimed water identification body cap (part # 458530),

with “Check Valve” stamped on top for easy ID (part # 458535)

• Field-installed vandal-proof cap (part # INST-VPC)

• Field-installed check valve (part # 437400)