Toro 254/264 Series - Manual

254/264 Series

Plastic Valves

V A L V E S

Extremely rugged residential/commercial valves designed for reliable

performance.

20 and 25mm (

3

⁄

4

" and 1") Electric Models

Features

• Male-threaded inlet and male-threaded or barbed outlet available
• Barbed insert models for use with poly pipe
• Manual flow control: adjustable to zero flow (254 Series)
• Manual bleed screw
• Energy-efficient solenoid
• 45cm (18") lead wires for easy-access installation
• Self-cleaning, stainless-steel metering pin (electric models)
• Stainless-steel diaphragm differential spring for smooth, positive

closing

• Single-piece rubber diaphragm for reliable, leak-free valve closing
• Tough, glass-filled Zytel

®

cap and body provides stability under

pressure

• Zytel Super Tough and stainless-steel construction for exceptional

durability

• Available with or without flow control

Specifications

25mm (1") Models

• Recommended flow range: 19-170 LPM (5-45 GPM)
• Operating pressure: 1.4-10 Bar (20-150 PSI)
• Burst pressure safety rating: 52 Bar (750 PSI)
• Body styles: Globe valve

• 2X4-06: 25mm (1") male-threaded inlet and outlet
• 2X4-16: 25mm (1") male-threaded inlet, 25mm (1") insert

(barbed) outlet

• Solenoid: 50/60 Hz (24 V.a.c.)

• Inrush: 0.30 Amps, 7.20 VA
• Holding: 0.20 Amps, 4.80 VA

• Dimensions:

• 254 Series (with flow control):

152 x 115mm (H x W) (6" x 4

1

⁄

2

") (H x W)

• 264 Series (without flow control):

115 x 115mm (H x W) (4

1

⁄

2

" x 4

1

⁄

2

") (H x W)

20mm (3⁄4") Models

• Recommended flow range: 2-57 LPM (0.5-15.0 GPM)
• Operating pressure: 1-10 Bar (15-150 PSI)
• Burst pressure safety rating: 52 Bar (750 PSI)
• Body style: Globe valve

• 20mm (

3

⁄

4

") male-threaded inlet and outlet

• Solenoid: 50/60 Hz (24 V.a.c.)

• Inrush: 0.25 Amps, 6.00 VA
• Holding: 0.19 Amps, 4.50 VA

• Dimensions:

76 x 102mm (H x W) (3" x 4" H x W)

Effluent flow-control
knob available
(Part No. 89-7855)

Manual bleed screw

Optional

flow control

Tough, glass-

filled Zytel cap

and body

Single-piece rubber

diaphragm

Stainless-steel

metering pin

254 Male x Male Valve

254 / 2 64 Series Friction Loss Chart – English Data (PSI)

Flow (GPM) 0.5

1

3

5

10

15

20

25

30

3

⁄

4

" Electric

<1.0 <1.0 <1.0 1.5

3.0 6.5

1" Electric

2.0

2.0 2.3

3.1

4.0

5.4

254 / 264 Series Friction Loss Chart – Metric Data (Bar)*

Flow (LPM)

2

25

50

75

100

125

20mm (

3

⁄

4

") Electric

<0,1

0,1

0,4

0,7

25mm (1") Electric

0,1

0,2

0,2

0,3

0,4

Flow Control Body Threads

Size

Specifying Information

2

X

4

X

6 0

X

5–w/ F.C.
6–w/o F.C.

0–Male Thread x Male Thread-NPT
1–Male Thread x Barb-NPT

3–20mm (

3

⁄

4

")

4–25mm (1")

For Example:

When specifying a 25mm (1") electric 264 Series valve

without flow control and with a male thread x 25mm (1") insert,

you would specify:

264-16-04

264-06-03

254-16-04

264-06-04

254-06-04

264-16-04

20mm (

3

⁄

4

") available with male x male thread without flow control only.

Note: For optimum sprinkler performance when designing a system,
calculate total friction loss to ensure sufficient downstream pressure.
Flow rates are recommended not to exceed 5 PSI loss.

*Values are listed in Bar. For kPa values, multiply tabular values by
100. For Kg/cm

2

values, multiply tabular values by 1,02. Flow rates

are recommended not to exceed 0,35 Bar loss