Drip Irrigation Pressure Regulators

It's all about the pressure! And drip irrigation requires low pressure--lower than most faucets or hydrants provide. That's why we feature pressure regulators--a critical part for most drip irrigation systems. (A simple pressure gauge like the one on our"TOOLS/BATTERIES" page will measure your water pressure)

Pressure regulators are used to reduce incoming water pressure that is too high for drip emitters and fittings. Some city water districts or rural areas supply water at very high pressure. Homeowner pumps also can deliver water at excessively high pressure. The regulator must be sized to match the flow of the drip system. To help you figure out which pressure regulator you should use, we have included optimal or maximum pressure ratings for the emitters and sprinklers we offer*.

*While most emitter tubing and emitters for drip systems operate well with regulators rated at from 8-30 PSI systems with mini-sprinklers and misters operate best in the 20-40 PSI range; and Tape systems should operate within the 8-12 PSI range.)

Regulators should be situated after valves or timers because they can be damaged by constant pressure. They are offered with hose or pipe threads and male or female inlets and outlets. So when you're chosing a regulator and a filter, make sure the connection are compatible.

FPT=Female Pipe Threads, MPT=Male Pipe Threads, FHT=Female Hose Threads, MHT=Male Hose Threads

LOW FLOW REGULATORS

Flow range is 6-480 GPH.
Inlets and outlets are 3/4"
Maximum inlet pressure 150 PSI

Models 80 thru 83 below:

Female Hose Thread Inlet x Male Hose Thread Outlet
for use with In-line filters or hose threaded "Y" filters

Models 84 thru 87 below:

Female Pipe Thread Inlet* x Male Hose Thread Outlet
for use with valves or pipe thread filters.

*They can be adapted to hose threads by using ADAPTOR part #704-AFHMP on the inlet side.

Models 88 thru 90 below:

Female Pipe Thread x Female Pipe Thread
for use with "Y" filters:

MEDIUM FLOW REGULATORS

Flow range is 120-1200 GPH
Inlets and outlets are 3/4"

Models 91-94 below:

Female Pipe Thread x Female Pipe Thread

Models 95 thru 98 below:

Female Pipe Thread x Male Hose Thread

LAWN & GARDEN LOW VOLUME REGULATORS

An ideal regulator for low volume systems connected to outdoor faucets.

Maximum inlet pressure 120 PSI
Flow range 6-420 GPH
Female Hose Thread inlet x Male Hose Thread outlet
Use with Tee filters, Inline filters or Hose Threaded Y filters.

LAWN & GARDEN LOW FLOW REGULATORS

PRSG10, PRSG30

STATIC REGULATOR

A low cost regulator that works like a limit valve.

100 PSI Maximum inlet pressure
30--420 GPH Flow range
Female Hose thread x Male Hose thread
Can be used with Tee Filter, Inline Filter or Hose threaded "Y" Filters.

THIS REGULATOR CAN BE USED BEFORE TIMERS AND VALVES

LIMIT VALVES

Designed to be used BEFORE timers and valves

(That is, it can be used under constant pressure)

Wide flow range of 30-900 GPH
Maximum inlet pressure 150 PSI

1" LIMIT VALVES

1" MEDIUM FLOW REGULATORS

Flow range 120--1200 GPH
1" Female Pipe Thread Inlet x 1" Female Pipe Thread Outlet
Maximum inlet pressures:

Model 811 @ 135 PSI

Models 812, 813 @ 150 PSI

HIGH FLOW REGULATORS

Flow range 600--1920 GPH
1 1/4" Female Pipe Thread Inlet x 1" Female Pipe Thread outlet
Maximum inlet pressures:

Model 814 @ 60 PSI

Model 815 @ 100 PSI

LAWN & GARDEN LOW FLOW REGULATORS

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