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Features and Benefits
. Maintains a set outlet pressure regardless of inlet pressure changes due to hydraulic conditions, elevation changes, pumping scenarios, etc.
. Wide Flow Range to 12 gpm at 15 psi and above.
. Plug-Resistant Design -- an open seat design prevents hair-pinning, debris hang-up, and plugging.
. Patented Dampening System -- handles severe pressure surges to withstand water hammer.
. Chemically Resistant Materials.
. Extended Performance & Precision Accuracy -- Precision components coupled with an internally lubricated o-ring minimize frictional drag and hysteresis.
. Integral adapter connects directly into all Nelson 3000 Series Sprinklers.

Blue-Top Pressue Regulator

Blue-Top Pressure Regulators
NI Part #	PSI	Flow in gpm
90127-L	6	Low .5 - 8
90105-L	10	Low .5 - 10
90118-L	15	Low .5 - 10
90119-L	20	Low .5 - 10
90120-L	25	Low .5 - 10
90121-L	30	Low .5 - 10
90128	6	High 4 - 16
90105	10	High 4 - 16
90118	15	High 2 - 20
90119	20	High 2 - 20
90120	25	High 2 - 20
90121	30	High 2 - 20
90122	40	High 2 - 20
90150	50	High 2 - 20

Blue-Top Pressue Regulator-ST

Square Thread Series
Flow Range: .5 to 20 gpm.
Inlet x Outlet: 3/4" Female NPT x 3/4" Male Square Thread

Blue-Top Pressure Regulators-ST
NI Part #	PSI	Flow in gpm
90127ST-L	6	Low .5 - 8
90105ST-L	10	Low .5 - 10
90118ST-L	15	Low .5 - 10
90119ST-L	20	Low .5 - 10
90120ST-L	25	Low .5 - 10
90121ST-L	30	Low .5 - 10
90128ST	6	High 4 - 16
90105ST	10	High 4 - 16
90118ST	15	High 2 - 20
90119ST	20	High 2 - 20
90120ST	25	High 2 - 20
90121ST	30	High 2 - 20