Design Guide

■ Step 11: Size pressure regulators based on the total zone flow using
the table below.
■ Step 12: Size the zone filter according to the total zone flow
(see DW13) using the Filter Sizing Table below. To
eliminate the chance of debris contamination in the event
of a main or sub-main break, use one filter per zone close
to the dripline
_____________________________________________________________Landscape Dripline Design
■ Typical Design Procedures
NOTES:
PRESSURE REGULATORS
Product
Flow Range
(GPM)
Pre-Set Operating
Pressure (PSI)
Inlet Size
(NPT)
Outlet Size
(NPT)
T-PMR-15 LF 1⁄10 - 8 GPM 15 PSI 3⁄4” FNPT 3⁄4” FNPT
T-PMR-25 LF 1⁄10 - 8 GPM 25 PSI 3⁄4” FNPT 3⁄4” FNPT
T-PMR-25 MF 2 - 20 GPM 25 PSI 3⁄4” FNPT 3⁄4” FNPT
T-PMR-25 HF 10 - 32 GPM 25 PSI 1” FNPT 1” FNPT
T-PMR-40 MF 2 - 20 GPM 40 PSI 3⁄4” FNPT 3⁄4” FNPT
TABLE 2.9
FILTERS
Item Number Size (MIPT) Flow (GPM)
Maximum
Pressure
Element Type Mesh Size
T-ALFS7150-L 3⁄4” 25 GPM 142 PSI
Stainless
Screen
150
T-ALFS10150-L 1” 35 GPM 142 PSI
Stainless
Screen
150
TABLE 2.10
ANSWERS FOR ZONE 1, TABLE 2.1, PAGE 10
DW1: 15 GPM
DW2: 25 PSI
DW3: SAND
DW4: GRASS
DW5: 0%
DW6: PC
DW7: 12”
DW8: 12”
DW9: 1.0
DW10: 1.02
DW11: 234’
DW12: 13”
DW13: 4.25 GPM
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