2
Precipitation Rate Formulas
❚ Square-spaced sprinklers in pattern:
GPM of full circle x 96.3
(Spacing)
2
❚ Triangular-spaced sprinklers in pattern:
GPM of full circle x 96.3
(Spacing)
2
(0.866)
❚ Area and flow:
Total GPM of zone x 96.3
Total irrigated
square feet of zone
❚ Single row:
GPM of full circle x 96.3
(Spacing) (Scallop)
Sprinkler Spacing Guidelines
❚ Square Spacing
No wind - 55% of diameter
4 mph wind - 50% of diameter
8 mph wind - 45% of diameter
❚ Triangular Spacing
No wind - 60% of diameter
4 mph wind - 55% of diameter
8 mph wind - 50% of diameter
❚ Single-Row Spacing
No wind - 50% of diameter
4 mph wind - 50% of diameter
8 mph wind - 45% of diameter
Note: Designing for zero (0) mph
wind conditions is not recommended.
Design for worst wind conditions.
For additional information, refer to
Toro Technical Data Manual,
form number 490-1737.
DT54 Series Sprinkler Performance Data
DT34 Series Sprinkler Performance Data
Base
Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set
Pressure
31 ● (Yellow) 32 ● (Blue) 33 ● (Brown) 34 ● (Orange) 35 ● (Green) 36 ● (Gray) 37 ● (Black)
★ BLUE ■YELLOW ★ RED ■ YELLOW ★RED ■ YELLOW ★ BEIGE ■ YELLOW ★BIEGE ■ YELLOW ✪RED ■ YELLOW ✪ GRAY ■ YELLOW
psi Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 56 13.2 60 16.6 64 22.3 65 27.4
65 58 15.0 62 20.0 66 25.0 70 30.0 75 35.0
80 61 16.5 66 22.1 70 27.4 73 33.2 78 38.4 84 41.0 87 45.0
100 63 18.4 71 24.7 74 30.3 76 37.0 81 42.5 87 46.0 90 49.5
Radius shown in feet.
Toro recommends the use of a 1
1
⁄
4
" (30mm) swing joint at flows over 25 GPM (95 LPM). Sprinkler radius of throw per ASAE standard S398.1
●
= Main Nozzle
★
= Intermediate Nozzle
✪
= Intermediate Nozzle w/ Straightener
■
= Inner Nozzle (Yellow w/ Yellow Restrictor)
All sprinklers are equipped with the selectable pilot valve that allows settings at 50, 65, 80 and 100 psi.
Base
Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set Nozzle Set
Pressure
51 ●(Yellow) 52 ● (Blue) 53 ● (Brown) 54 ● (Orng) 55 ● (Green) 56 ● (Gray) 57 ● (Black) 58 ● (Red) 59 ● (Beige)
★
BLUE
■YELLOW ★
RED
■YELLOW ★
RED
■YELLOW ★
BEIGE
■YELLOW ★
BEIGE
■YELLOW ✪
RED
■YELLOW ★
BRN
✪
GRY
■YLW ★
BRN
✪
GRY
■YLW ✪
GRAY
■YELLOW
psi
Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM Radius GPM
50 56 13.2 60 16.6 64 22.3 65 27.4
65 58 15.0 62 20.0 66 25.0 70 30.0 75 35.0
80 61 16.5 66 22.1 70 27.4 73 33.2 78 38.4 84 41.0 87 45.0 90 52.0 94 57.5
100 63 18.4 71 24.7 74 30.3 76 37.0 81 42.5 87 46.0 90 49.5 95 56.5 100 62.0
Low-flow Stator Medium-flow Stator High-flow
Radius shown in feet.
Toro recommends the use of a 1
1
⁄
4
" (30mm) swing joint at flows over 25 GPM (95 LPM). Sprinkler radius of throw per ASAE standard S398.1
●
= Main Nozzle
★
= Intermediate Nozzle
✪
= Intermediate Nozzle w/ Straightener
■
= Inner Nozzle (Yellow w/ Yellow Restrictor)
All sprinklers are equipped with the selectable pilot valve that allows settings at 50, 65, 80 and 100 psi.