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Series 75 Valves

Series 75

Edition 03/2020

22

Dorot, part of Matholding Group since 2014, is one of the world’s leading manufacturers and developers

of sustainable technologies and products for water control and optimization systems.

With more than 70 years of experience, the company is a worldwide pioneer

in providing high quality solutions for Hydraulic Controlled Valves and Air Valves.

Customers around the globe benefit on a daily basis from our experience and wide variety of solutions and services in the following areas:

Waterworks Distribution Systems for civil and industrial engineering Fire Protection Industrial Applications such as Mining,

Wastewater, Marine Water Treatment and Filtration

Agricultural and Landscape Irrigation Water Metering and others

Innovation and expertise are the backbones of Dorot. It drove us into developing a

diverse portfolio of water and other fluids systems application, in compliance with

specifications and international quality standards. Customer satisfaction and recognition is of paramount importance for Dorot. This guarantees uncompromised know-how, expertise and professionalism in planning, designing and providing the optimal hydraulic control solutions.

We invite you to join our family of business partners.Together we can provide the best control solutions for

the world’s most valuable natural resource: water

Series 75

Edition 03/2020

General

3

Dorot Series 75

Series 75 plastic valves are designed to control irrigation systems for crop fields, vineyards and orchards.This series boasts exceptional hydraulic characteristics enabling high flow rates, while operating at low head loss.A wide range of control functions allow designing and operating optimal irrigation networks.

Features: • Simple structure• Superb hydraulic performance - unmatched high

flow capacity• Durable, corrosion free materials• Unique clog-free labyrinth inlet in the electric

2-way valves• Optional check feature• Operates at a wide range of flow rates, from near

zero to maximal flow• Electric 2-way or hydraulic / electric 3-way

actuation• Optional flow control throttle handle• Simple & Easy maintenance• Suitable for Low pressure systems

Series 75

Edition 03/2020

4

Benefits

End Connections Options:

PVC Connection 2"(50mm)

BSP; NPT - Thread 3/4"- 3"(20mm-80mm)

• Trouble-free open-close as well as regulating operation even with raw water (with high rate of solids and impurities) conduction

• Excellent Regulation capabilities, including at Zero Flow conditions• Extremely wide water pass-through cross sections

Simplicity - Only 4 parts:

Versatility

Diaphragm Spring*

*For 3 way models only

BonnetBody

Manual throttling Built-in Solenoid

Flexible Diaphragm

Universal Flange 3", 4"R (80mm, 100mmR)

Series 75

Edition 03/2020

5

Operating principle

The position of the diaphragm is dictated by the volume of water in the control chamber, which is regulated by the pilot valve in order to maintain a preset pressure value.

When the operating pressure is relieved from the control chamber, the line pressure at the valve inlet opens the valve.

When inlet pressure is applied to the control chamber the valve closes drip-tight.

Closed mode Open mode Modulating mode

Energizing the solenoid operator opens a drain to the downstream, allowing the valve to open.

A solenoid operator plugs the control chamber’s outlet. A permanent connection from the upstream through a labyrinth restriction ensures line pressure into the chamber closing the valve.

Closed mode Open mode

3 Way Control

2 Way Electric-Control

Series 75

Edition 03/2020

6

Engineering Data

Diameter Range: 3/4” - 4”R

Head loss chart:

Dimensions

Dimension 20mm3/4”

25mm1”

35mm 11/2”

50mm2”

50mm2”

65mm 21/2”

80mmR3”R

80mm3”

80mm3”

100mmR4”R

Height

H1 mm / inch 38 / 11/2 38 / 11/2 67 / 25/8 67 / 25/8 67 / 25/8 67 / 25/8 67 / 25/8 100 / 315/16 100 / 315/16 100 / 315/16

H2 mm / inch 100 / 4 100 / 4 112 / 43/8 112 / 43/8 112 / 43/8 112 / 43/8 112 / 43/8 180 / 71/8 180 / 71/8 180 / 71/8

R mm / inch 18 / 11/16 22 / 13/16 30 / 13/16 37 / 11/2 37 / 11/2 47 / 17/8 54 / 21/8 60 / 23/8 100 / 315/16 110 / 45/16

Length L mm / inch 113 / 41/2 124 / 47/8 188 / 73/8 199 / 77/8 247 / 911/16 228 / 9 236 / 91/4 260 / 101/4 290 / 117/16 290 / 117/16

Vol.control chamber cc / gal 36 / 0.01 36 / 0.01 180 / 0.04 180 / 0.04 180 / 0.04 180 / 0.04 180 / 0.04 250 / 0.05 250 / 0.05 250 / 0.05

Weight kg / lbs 0.2 / 0.44 0.2 / 0.44 0.9 / 2 0.9 / 2 1.3 / 2.8 1.2 / 2.6 1.4 / 3.1 1.8 / 4.4 3 / 6.8 4 / 8.8

Hydraulic performance:

Valve Size mminch

20mm3/4”

25mm1”

35mm11/2”

50mm2”

65mm21/2”

80mmR3”R

80mm3”

100mmR4”R

Max. recommended flow rate for continuous operation

m3/hr 6 10 25 40 65 90 100 145gpm 26 44 110 176 285 396 440 640

Min. recommended flow ratem3/hr >1gpm >5

Flow rate factor Kv (metric) 7.5 15 60 71 79 90 120 120

Cv (US) 9 17.5 70 82 92 92 140 140

Pressure rangemeter 9 * - 80 7 * - 100 4 - 100

psi 15 * - 115 15 * - 150 6 - 145

* Low pressure diaphragms - minimal opening pressure:

Maximum operating temperature: 60°C (140°F)

psi mwc

6

5

4

3

2

1

2

3

4

5

6

7

8

7

81

gpmm /h3

2 3 4 5 6 8 10 20 30 40 50 60

10 15 20 30 40 50 60 80 100 150 200

100 200

1000

2" 2

"3"

R1 21 2

1"

3 / 4”

1” 3", 4

"R

2-W psi mwc

6

5

4

3

2

1

2

3

4

5

6

7

8

7

81

gpmm /h3

3"R1 2

2" 2"

1 2

1"psi mwc

50 60 80 100 150 200 300

10 20 30 40 50 601

1.5

2

3

4

5

6 4

3

2

1.9

.8

.7m /h3

gpm

3"1 21

" 2" 2

"1 2

2 3 4 5 6 8 10 20 30 40 50 60

10 15 20 30 40 50 60 80 100 150 200

100 200

1000

3 4"

1" 3"

3” / 9

0

4” / 1

10

6” / 1

60

m /h3

gpm150 200 300 400 500 700 900

30 40 50 60 80 100 200

1300

300

1700

400

psi mwc

1

1.5

2

3

4

5

6 4

3

2

1.9

.8

.7

psi mwc14

1098765

4

3

2

109876

5

4

3

2

1

10 20 30 40 50 60 70 80 90 100 200 m3/hgpm8004003002001009080706050

3x2

3x3

4x3

4x4

3x2,

3X3

4x3,

4X4

HH1

R

L

2

3-W

3/4" - 1" : 6 meter / 9 psi11/2" - 3" : 3.5 meter / 5 psi

PVC Connection

Flanged

Series 75

Edition 03/2020

7

Head loss chart:

Engineering Data

Dimensions

Dimension80mm3”H

Threaded

80mm3”H

Flanged

100mm4”

Grooved

100mm4”

Flanged

150mmR6”R

150mm6”

200mmR8”R

Height H mm / inch 162 / 63/8 190 / 71/2 160 / 7 230 / 9 285 / 111/5 285 / 111/5 307 / 12

Width W mm / inch 236 / 92/7 236 / 92/7 236 / 92/7 236 / 92/7 285 / 111/5 285 / 111/5 307 / 12

Length L mm / inch 452 / 173/4 485 / 19 350 / 133/4 373 / 141/2 420 / 161/2 420 / 161/2 500 / 192/3

Vol.control chamber cc / gal 500 / 0.13 1000 / 0.26

Weight kg / lbs 4.7 / 10.4 6 / 13.2 3.9 / 8.6 6 / 13.2 7.5 / 16.5 10.6 / 23.4 13.8 / 30.4

Hydraulic performance:

Valve Size mminch

80mm3”H

100mm4”

150mmR6”R

150mm6”

200mmR8”R

Max. recommended flow rate for continuous operation

m3/hr 160 350gpm 705 1542

Min. recommended flow ratem3/hr >1gpm >5

Flow rate factor Kv (metric) 250 350 580

Cv (US) 292 4.9 678

Pressure rangemeter 5 - 120

psi 7 - 180

Maximum operating temperature: 60°C (140°F)

psi bar

0.3

0.2

1.5

3

57

90.7

0.90.8

gpm

m3/hr

psi mwc

50 60 80 100 150 200 300

10 20 30 40 50 601

1.5

2

3

4

5

6 4

3

2

1.9

.8

.7m /h3

gpm

3"1 21

" 2" 2

"1 2

0

0.1

0.4

0.5

0.6

13

10

1.014.5

5

5

20

10

50

50

200

100 200

900

1000

4400

3”H 4-6R 6-8R

3” / 9

0

4” / 1

10

6” / 1

60

m /h3

gpm150 200 300 400 500 700 900

30 40 50 60 80 100 200

1300

300

1700

400

psi mwc

1

1.5

2

3

4

5

6 4

3

2

1.9

.8

.7

psi mwc14

1098765

4

3

2

109876

5

4

3

2

1

10 20 30 40 50 60 70 80 90 100 200 m3/hgpm8004003002001009080706050

3x2

3x3

4x3

4x4

3x2,

3X3

4x3,

4X4

R = Reduced port, 3R=323H = High flow, 3H=343

Diameter Range: 3”H - 8”R

Series 75

Edition 03/2020

8

Parts and Materials

Parts and Materials:Part Standard Optional

1 Body GRP Polypropylene PP1.1 Body - 2 way GRP Polypropylene PP

1.2 Body for flange connections GRP Polypropylene PP

2 Bonnet GRP Polypropylene PP

2.1 Bonnet with throttling handle GRP Polypropylene PP

3 Diaphragm NR ALD, EPDM4 Bolts and washers SST 304 SST 3165 Spring SST 302 SST 3166 Spring disc GRP Polypropylene PP

7 Flange3”- Plastic Aluminium4”- Plastic

8 Flange adapter PA-GF9 O-ring No. 2-347 NBR

10 O-ring No. 2-342 NBR11 2 way adaptors GRP Polypropylene PP12 3 way adaptors GRP Polypropylene PP

3/4”- 1”

REVISIONS

REV No DATE APP'D

SCALE:

GENERAL TOLERANCE

CHE'D

DATE

APP'D

PART No:

NAME

DRAWN DESIGNATION:

SIGNW EIGHT:

DIMENSIONS ARE IN MILLIMETERS

SIZE: A3NO SCALE

REV:

DESIGN

MAOR A.

A

11/2”- 3”R3”- 4”R

2.1

412

11

2

6

5

3

3

2.1

2.1

1

114

2

2

114

5

5

87

1.2

78

1

3

6

1

1.1

6

12

9 10 10 9

Diameter Range: 3/4” - 4”R

Series 75

Edition 03/2020

9

Typical Applications

PR

ELD3

PR/RC

ED2

PR/PS

75P - EL Mining

Series 75

Edition 03/2020

10

Diameter Range: 3/4” - 4”ROrdering data Ordering code Ordering data

7□ □ □ □ □ □ □ □Versions ↑ ↑ ↑ Port connections

Threaded → 5 BS BSP threaded

Flanged → 5S-F* NP NPT threaded

PVC solvent welded*** → 6 SW PVC solvent welded

Polypropylene PP → 5P / 6P Application

Bonnet B ← Basic

Standard → - M ← Manual ON-OFF

with throttling handle → T RC ← Remote hydraulic control

Port size ED2 ← Electric 2Way valve (integral operator)***3/4” / 20 mm → 75 ED2(CV) ← Electric 2Way valve with check feature***

1” / 25 mm → 1 EL(D3) ← Electric 3Way valve***

11/2” / 40 mm → 1.5 ED3 ← Electric 3Way valve (integral operator)***

2” / 50 mm → 2 PR ← Pressure Reducing

21/2” / 65 mm → 2.5 PS ← Pressure Sustaining/Relief

3”R / 80 mmR → 3R PR/EL ← Electrically-activated Pressure Reducing***

3” / 80 mm → 3 PR/RC ← Hydraulically-activated Pressure Reducing

4”R / 100 mmR → 4R PR/PS ← Pressure Reducing and Pressure Sustaining

PS/EL ← Electrically-activated Pressure Sustaining***

FR ← Flow Control Valve

FL ← Modulating Float Controlled Valve

XX ← Other (Specify)

Ordering guide

* Available for 3” and 4”R only** 2”/50mm valves are available with solvent welded only*** For Electric applications please specify voltage and current

Diameter Range: 3”H - 8”ROrdering data Ordering code Ordering data

□ □ □ □Port size ↑ ↑ ↑ Application***

3"H/80mmH → 3H M ← Manual ON-OFF

4"/100mm → 4 RC ← Remote hydraulic control

6"R/150mmR → 6R EL ← ****Electric 3Way valve

6"/150mm → 6 PR ← Pressure Reducing

8”R/200mmR → 8R PS ← Pressure Sustaining/Relief

Port size PR/EL ← ****Electrically-activated Pressure Reducing

Threaded* → T PR/RC ← Hydraulically-activated Pressure Reducing

Grooved** → V PR/PS ← Pressure Reducing and Pressure Sustaining

Flanged → F PS/EL ← ****Electrically-activated Pressure Sustaining

FR ← Flow Control Valve

FL ← Modulating Float Controlled Valve

XX ← Other (Specify)

* Threaded For 3”H valve only**Grooved For 4” valve only*** Regulating valves come with pilot 29-50M as standard**** For electric application- specify voltage and current

ReliabilityReliability

Innovation

ExpertiseInnovation

Expertise

Hundreds of companies in the industrial, civil engineering, municipal and agricultural sectors around the world have chosen DOROT’s innovative and field-proven technologies. Since its establishment in 1946, DOROT leads the valves market with continued innovation, uncompromising excellence and firm commitment to its customers, consulting and supporting them through all stages of a project and overcoming challenges in R&D, design, implementation, and maintenance.

www.dorot.com