Fire Protection catalogue - Dorot Control Valves

Dorot Fire Fighting 

Control Solutions 

for Fire Fighting 

Applications 

Fire Fighting 

Edition 07/2012


Contents 

Series 300 Basic Valves Description 4 

Series 100 Basic Valves Description 6 

Automatic Valves for Sprinkler Systems 8 

DE/HL Basic Deluge Valve 8 

DE/HM Hydraulically Controlled Deluge Valve 8 

DE/EL Electrically Controlled Deluge Valve 9 

DE/EL(CN) Electrically Controlled Deluge Valve (Chinese standard) 9 

DE/RC Electrically Controlled Deluge Valve (3-Way) 10 

DE/RCL Electrically Controlled Deluge Valve with Manual Reset 10 

DE/RCE Electrically Controlled Deluge Valve with Hydraulic / Pneumatic / Electric Reset 11 

DE/HRV Hydraulically Controlled, Anti-Columning Deluge Valve 12 

DE/HRV/EL Electro-Hydraulically Controlled, Anti-Columning Deluge Valve 12 

DE/PORV Pneumatically Controlled Deluge Valve 13 

DE/EL/PORV Electro-Pneumatically Controlled Deluge Valve 13 

DE/EL/PORV/DN Double-Interlock Pre-action, Electric-Pneumatic Release System 14 

DE/PR Pressure Regulating Deluge Valve 14 

Local and Remote Controlled Monitor Valves 15 

MO/M Manually Activated Monitor Valve 15 

MO/RC Remote Hydraulic/Pneumatic Activated Monitor Valve 15 

MO/EL Remote Electrically Activated Monitor Valve 15 

2 

Edition 07/2012

Contents 


Automatic Distribution Valves 16 

PR/UL Pressure Reducing Valve 16 

PS/UL Pressure Sustaining\Relief Valve 16 

Water Level Control Valves 17 

FL Modulating Float Controlled Valve 17 

FLEL Electric Float Controlled Valve 17 

FLDI Differential Float Pilot Controlled Valve 18 

AL Altitude Pilot Controlled Valve 18 

Hydrants 19 

HY Hydraulic Hydrant Valve 19 

HY/PR Hydraulic Pressure-Regulating Hydrant Valve 19 

LEHAVA / ZIK Hydrant Valve (Classic type) 19 

3 

Edition 07/2012


Series 300 Basic Hydraulic Valves 

General Description 

The Dorot Series 300 valves are automatic, 

hydraulically activated by the pressure of 

the pipeline, diaphragm actuated, globe and 

angle pattern control valves. 

This valve is designed for use in any water 

supply application, including the controlling 

of water flow for deluge, pre-action or 

foam-water type fire protection sprinkler 

systems. 

The valve consists of three major 

components: the body, the cover, and the 

diaphragm assembly. 

The only moving part is the diaphragm 

assembly. 

Pack-less construction and simplicity of 

design of the valve assure long service life, 

reliable operation and low maintenance. 

Features 

4UL-listed with a wide range of control trims 

4Fast opening and cushioned closure operation 

4Reliable drip-tight shut off 

4Simple and reliable design 

4Easy installation and maintenance 

4Double or single chamber actuation 

4High-grade construction materials 

4Regulation from near zero flow 

4Low pressure losses at high flow rates 

Optional Features 

4Latched opening or automatic reset 

4Manual, Electric, Hydraulic and Pneumatic, 

UL-listed actuation trims 

4Explosion-proof electronic devices 

4Sea water service 

Approvals 

The valve is UL listed as “Fire Pump Relief 

Valves” (QXZQ.EX4505), ”Special Systems 

Water Control Valves” - Deluge (VLFT.EX6543) 

and Pressure Control (VLMN.EX6104) types 

to pressure rating of 175 psi and 350 psi PN16 

and PN25 in sizes of 2” to 12” (50 to 300mm). 

Consult the UL listing guide or Dorot for a 

complete list of approved applications. 

Specifications 

Sizes: Straight Flow 40-800 mm 1 1 / 2 ” - 32” 

Angle 40-200 mm 1 1 / 2 ” - 8” 

End Details: 

Flanged: ISO PN10, 16 and 25 

ANSI B16.42 class 150 & 300 

AS Tables D & E, JIS 

Others upon request 

Threaded: BSP or NPT 

Pressure rating: 16 bar / 230 psi maximum 

25 bar / 360 psi maximum 

Temperature range: Water to 80°C / 180°F max 

Materials 

Body & Cover*: Ductile Iron ASTM A-536 

Cast Steel ASTM A216 WCB 

Stainless Steel ASTM A743 - 

CF8M, CF8, CF3M, 316 

Naval Bronze ASTM B61 

NAB Ni-Al Bronze ASTM B148 

Coating: Polyester, Fusion Bonded Epoxy (FBE) 

(option UV Protected) 

Main valve trim*: Stainless Steel & Bronze 

Elastomers: Rubber, NR, NBR, EPDM, BUNA-N 

Control trim & Accesories*: Brass, Bronze, SST 

Monel, Special Materials 

* Other materials available upon request 

4 

Edition 07/2012



Principle of Operation 

Dimensions and Weights 

Valve Size 

50 (2”) 

65 (2 1 / 2 

”) 

80 (3”) 

100 (4”) 

150 (6”) 

200 (8”) 

250 (10”) 

300 (12”) 

350 (14”) 

400 (16”) 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

FL 

230 

9 1 / 16 

292 

11 1 / 2 

310 

12 3 / 16 

350 

13 3 / 4 

480 

18 7 / 8 

600 

23 1 / 16 

730 

28 3 / 4 

850 

33 7 / 16 

980 

38 9 / 16 

1100 

43 5 / 16 

FH 

185 

7 5 / 16 

185 

7 5 / 16 

230 

9 1 / 16 

240 

8 7 / 16 

330 

13 

390 

15 3 / 8 

520 

20 1 / 2 

635 

25 

635 

25 

855 

33 5 / 8 

W 

170 

7 

170 

7 

200 

7 

235 

9 

330 

13 

415 

16 

525 

21 

610 

24 

610 

24 

850 

33 

FR 

165 

6 1 / 2 

185 

7 5 / 16 

200 

7 7 / 8 

220 

8 11 / 16 

285 

11 1 / 4 

345 

13 9 / 16 

410 

16 1 / 8 

460 

18 1 / 8 

520 

20 1 / 2 

580 

22 13 / 16 

TL 

215 

8 7 / 16 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

DIMENSIONS 

TH 

TR 

AL 

209 

62 

208 

8 1 / 4 

2 7 / 16 

8 3 / 16 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

250 

N/A 

N/A 

9 13 / 16 

N/A 

N/A 

295 

N/A 

N/A 

11 1 / 16 

N/A 

N/A 

405 

N/A 

N/A 

16 

N/A 

N/A 

505 

N/A 

N/A 

19 7 / 8 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

AH 

240 

9 7 / 16 

N/A 

N/A 

415 

16 5 / 16 

445 

17 1 / 2 

570 

22 7 / 16 

635 

25 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

AB 

125 

4 15 / 16 

N/A 

N/A 

150 

5 7 / 8 

173 

6 13 / 16 

240 

9 7 / 16 

300 

11 13 / 16 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

AR 

Vol. Control 

Chamber lit./gal. 

Weight kg/lbs 

107 4 3 / 16 

0.1 / 0.03 

12 / 26 

N/A N/A 

0.1 / 0.03 

13 / 29 

138 5 7 / 16 

0.3 / 0.08 

22 / 48 

147 5 13 / 16 

0.7 / 0.18 

37 / 82 

180 7 1 / 16 

1.5 / 0.4 

80 / 176 

N/A 14 3 / 16 

4.3 / 1.1 

157 / 346 

N/A N/A 

9.7 / 2.6 

245 / 540 

N/A N/A 

18.6 / 4.9 

405 / 892 

N/A N/A 

18.6 / 4.9 

510 / 1123 

N/A N/A 

50 / 13.2 

822 / 1810 

FH 

FH 

FH 

AH 

AH 

TH AH 

TH 

TH 

FR 

FR 

AR 

FR 

AR 

AR 

TR 

TR 

TR 

AB 

AB 

AB 

FL 

FL 

AL FL 

AL 

ALTL 

TL 

TL 

W 

W 

W 

5 

Edition 07/2012



General Description 

The Dorot Series 100 valves are automatic, 

hydraulically activated by the pressure of the 

pipeline, direct diaphragm sealing weir type 

with proven reliable design. 

This valve is designed for use in any water 

and Foam supply application, including the 

control of water flow to deluge, pre-action 

or foam-water type fire protection sprinkler 

systems. 

The valve consists of three major 

components: body, cover and diaphragm. 

The only moving part is the diaphragm. 

Pack-less construction and simplicity of 

design of the valve assure long service life 

and low maintenance. 

Features 

4UL-listed with a wide range of control trims 

4Fast opening and cushioned closure 

operation 

4Simple and reliable design 

4Easy installation and maintenance 

4High-grade construction materials 

4Will regulate from near zero flow 

4Exceptionally low pressure losses 

Optional Features 

4Latched opening or automatic reset 

4Manual, Electric, Hydraulic and Pneumatic, 

UL-listed actuation trims 

4Explosion-proof electronic devices 

4Sea water service 

Approvals 

The valve is U.L. listed as “Fire Pump Relief 

Valves” (QXZQ.EX4505) and “Special Systems 

Water Control Valves” (VLFT.EX6543) to 

pressure rating of 175 psi in sizes of 2” to 10” 

(50 to 250mm). 

Consult the UL listing guide or Dorot for a 

complete list of approved applications. 

Specifications 

Sizes: Straight Flow 20-600 mm / 3 / 4 ” - 24” 

Angle 40-150 mm / 1 1 / 2 ” - 6” 

End Details: 

Flanged: ISO PN10, 16 and 25 

ANSI B16.42 class 150, 

250 & 300 

AS Tables D & E, JIS 

Others upon request 

Threaded: BSP or NPT Grooved 

Pressure rating: 16bar / 230 psi maximum 

Temperature range: Water to 80°C / 180°F max 

Materials 

Body & Cover*: Cast Iron ASTM A126 

Ductile Iron ASTM A-536 

Cast Steel ASTM A216 WCB 

Stainless Steel ASTM A743 - 

CF8M, CF8, CF3M, 316 

Naval Bronze ASTM B61 

NAB Ni-Al Bronze ASTM B148 

Coating: Polyester, Fusion Bonded Epoxy (FBE) 

(option UV Protected) 

Elastomers: Rubber, NR, NBR, EPDM, Buna-N 

Control trim & Accesories*: Brass, Bronze, SST 

Monel, Special Materials 

* Other materials available upon request 

6 

Edition 07/2012



Principle of Operation 

Dimensions and Weights 

Valve Size 

50 (2”) 

80 (3”) 

100 (4”) 

150 (6”) 

200 (8”) 

250 (10”) 

300 (12”) 

350 (14”) 

400 (16”) 

450 (18”) 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

mm 

inch 

L 

200 

7 13 / 16 

285 

11 3 / 16 

305 

12 

390 

15 5 / 16 

460 

18 1 / 8 

535 

21 

580 

22 13 / 16 

580 

22 13 / 16 

980 

38 9 / 16 

1100 

43 5 / 16 

H 

166 

6 1 / 2 

200 

7 13 / 16 

230 

9 

314 

12 5 / 16 

400 

15 11 / 16 

445 

17 1 / 2 

495 

19 3 / 8 

495 

19 3 / 8 

990 

39 

1250 

49 3 / 16 

77 

R 

85 

3 5 / 16 

105 

4 1 / 8 

110 

4 5 / 16 

145 

5 11 / 16 

170 

6 5 / 8 

205 

8 

240 

9 3 / 8 

270 

10 5 / 8 

610 

24 

850 

33 

W 

Approx. 

Weight kg/lbs 

L 

166 6 1 / 2 

7.7 / 17 

228 8 7 / 8 

200 7 13 / 16 

18.2 / 40.1 

310 

12 3 / 16 

230 9 

24 / 53 

356 14 

300 11 13 / 16 

49 / 108 

436 17 1 / 8 

365 14 3 / 8 

86 / 190 

530 20 13 / 16 

440 17 5 / 16 

125 / 276 

636 25 

490 19 5 / 16 

167 / 368 

N/A N/A 

540 21 5 / 16 

172 / 379 

N/A N/A 

520 20 1 / 2 

N/A 

715 28 1 / 8 

580 22 13 / 16 

N/A 

715 28 1 / 8 

H 

169 

6 5 / 8 

237 

9 5 / 16 

263 

10 5 / 16 

378 

14 13 / 16 

481 

18 7 / 8 

546 

21 1 / 2 

N/A 

N/A 

N/A 

N/A 

830 

32 5 / 8 

830 

32 5 / 8 

68 

R 

85 

3 5 / 16 

105 

4 1 / 8 

120 

4 11 / 16 

150 

5 7 / 8 

180 

7 

215 

8 3 / 8 

N/A 

N/A 

N/A 

N/A 

310 

12 3 / 16 

340 

13 5 / 16 

DIMENSIONS 

W 

Approx. 

Weight kg/lbs 

TL 

TH 

175 6 7 / 8 

10 / 22 

188 7 3 / 8 

115 4 1 / 2 

200 7 13 / 16 

30 / 66.1 

316 12 3 / 8 

135 5 5 / 16 

260 10 3 / 16 

38 / 83.8 

N/A N/A 

N/A N/A 

320 12 5 / 8 

75 / 165.3 

N/A N/A 

N/A N/A 

400 15 11 / 16 

123 / 271 

N/A N/A 

N/A N/A 

495 19 3 / 8 

190 / 419 

N/A N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

830 32 5 / 8 

433 / 955 

N/A N/A 

N/A N/A 

830 32 5 / 8 

460 / 1014 

N/A N/A 

N/A N/A 

44 

TR 

42 

1 5 / 8 

53 

2 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

W 

Approx. 

Weight kg/lbs 

AL 

112 4 3 / 8 

3.2 / 7 

N/A N/A 

200 7 13 / 16 

11 / 24 

174 6 13 / 16 

N/A N/A 

N/A 

180 7 

N/A N/A 

N/A 

230 9 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

N/A N/A 

N/A 

N/A N/A 

AH 

N/A 

N/A 

278 

11 

300 

11 13 / 16 

380 

15 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

82 

AR 

N/A 

N/A 

47 

1 13 / 16 

60 

2 5 / 16 

82 

3 3 / 16 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

W 

Approx. 

Weight kg/lbs 

N/A 

N/A 

N/A 

200 

7 13 / 16 

18 / 39.6 

230 

9 

21 / 46.2 

300 

11 13 / 16 

45 / 99.2 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

N/A 

H 

H 

R 

HAH 

R 

AH 

AR 

R 

AH 

TH 

AR 

TH 

TR AR 

TH 

TR 

TR 

L 

L 

ALL 

AL 

AL TL 

TL 

TL 

W 

W 

W 

77/68 82 44 

7 

Edition 07/2012


Automatic Valves For Sprinkler Systems 

DE/HL 

Basic Deluge Valve 

Basic, hydraulic operated deluge valve 

The valve maintains a closed position and instantly opens upon a 

hydraulic pressure drop in a pressurized sensor\activation line. 

Features: 

4 Simple structure 

4 Automatic reset - optional latch operation 

4 The application is based on the UL listed valves 

Applicable for: 

4 Deluge 

4 Dry pipe 

4 Single-Interlock Pre-Action 

4 Remote activation monitor systems 

4 Water, Sea water, Foam solution or Foam concentrate 

DE/HM 

UL 

R 

Hydraulically Controlled Deluge Valve 

Hydraulic pilot operated control valve 

The valve maintains a closed position and instantly opens upon a 

hydraulic pressure drop in a pressurized sprinkler system. 

30U-DE/HM 

Features: 

4 UL certified 


4 Automatic reset – optional latch operation 


4 Deluge 

4 Dry pipe 



68-DE/HM 

8 

Edition 07/2012



UL 

R 

DE/EL 

Electrically Controlled Deluge Valve 

(2W solenoid) 

Electric solenoid operated control valve 

The valve maintains a closed position and instantly opens by 

energizing a solenoid valve. 

Features: 




30U-DE/EL 


4 Deluge 

4 Dry pipe 

4 Single or double Interlock Pre-Action 


CN 

std 

DE/EL(CN) 


(Chinese standard) 

68-DE/EL 

Electrically operated, latching relay controlled valve 


energizing a solenoid valve. The valve will close only after a manual 

reset is activated. 

Features: 

4 Chinese standard certified 


4 Latching operation 


4 Deluge 

4 Dry pipe 



30-DE/EL (CN) 

9 

Edition 07/2012



UL 

R 

DE/RC 


(3W Solenoid) 

Electrically operated, relay controlled valve 



Features: 




30U-DE/RC 


4 Deluge 

4 Dry pipe 



UL 

R 

DE/RCL 


with Manual Reset 

68-DE/RC 




The valve will close only after a manual reset is activated. 

Features: 




30U-DE/RCL 


4 Deluge 

4 Dry pipe 



68-DE/RCL 

10 

Edition 07/2012



UL 

R 

DE/RCE 


with Hydraulic / Pneumatic / Electric Reset 




The valve will close only after a manual reset is activated 

or a reset pressure command is applied to the relay. 

Features: 




30U-DE/RC 


4 Deluge 

4 Dry pipe 



68-DE/PORV 

30U-DE/RCL 

68-DE/EL/PORV 

11 

Edition 07/2012



DE/HRV 

UL 

R 

Hydraulically Controlled, Anti-Columning Deluge Valve 

Hydraulic pilot operated control valve 

The valve maintains a closed position and instantly opens upon 

a hydraulic pressure drop in a pressurized sprinkler system. 

Features: 




30U-DE/HRV 


4 Deluge 

4 Dry pipe 



UL 

R 

DE/HRV/EL 

Electro-Hydraulically Controlled, 

Anti-Columning Deluge Valve 

68-DE/HRV 

Hydraulic pilot and Electrically operated control valve 


an hydraulic pressure drop in a pressurized sprinkler system or by 


Features: 

4UL certified 



30U-DE/HRV/EL 


4 Deluge 

4 Dry pipe 



68-DE/HRV/EL 

12 

Edition 07/2012



DE/PORV 

UL 

R 

Pneumatically Controlled Deluge Valve 

Pneumatic Air/Gas, pilot operated control valve 


air/gas pressure drop in a pressurized sprinkler system or manual 

“in situ” emergency activation. 

Features: 




30U-DE/PORV 


4 Deluge 

4 Dry pipe 



DE/EL/PORV 

UL 

R 

Electro-Pneumatically Controlled Deluge Valve 

68-DE/PORV 

Pneumatic Air/Gas pilot and Electrically operated control valve 


air/gas pressure drop in a pressurized sprinkler system or by 

energizing a solenoid valve or manual “in situ” emergency activation. 

Features: 



4 Automatic reset - optional latch operation 

30U-DE/EL/PORV 


4 Deluge 

4 Dry pipe 



68-DE/EL/PORV 

13 

Edition 07/2012



UL 

R 

DE/EL/PORV/DN 

Double-Interlock Pre-action, 

Electric-Pneumatic Release System 

Pneumatically and Electrically operated control valve 


air/gas pressure drop in a pressurized sprinkler system and 

energizing a solenoid valve simultaniously or manual “in situ” 

emergency activation 

Features: 




30U-DE/EL/PORV/DN 


4 Double-Interlock Pre-Action 


DE/PR 

Pressure Control Deluge Valve 

68-DE/EL/PORV/DN 

Pressure control deluge valve 

The valve opens upon activation from an auxiliary control system, 

and maintains a pre-determined fixed downstream pressure, 

regardless of supply pressure of flow variations. 

Features: 


4 Will regulate from zero to full flow with no need for additional 

throttling plug or by-pass valves 

4 Same low pressure losses as in the basic valve 

4 Applicable with any deluge activation control system 


30-DE/PR 



68-DE/PR 

14 

Edition 07/2012

Local and Remote Controlled Monitor Valves 


MO/M 

Manually Activated Monitor Valve 

The valve is controlled manually by a selector that allows the user to 

select the closed or open position of the valve. The control is effected 

effortlessly and quickly, even under high pressure conditions. 

Features: 

4 Effortless open\close activation 

4 Fast response 

4 Simple and reliable design 

4 Easy installation and maintenance 


77-M 

MO/RC 

Remote Hydraulic/Pneumatic Activated Monitor Valve 

A 3-way relay valve, activated by hydraulic or pneumatic pressure 

command, which opens or closes the main valve. The standard valve 

is supplied in the “normally closed” position. The “normally open” 

position is optional. 

77-RC 

Features: 

4 Fast response, even for long control lines 




MO/EL 

Remote Electrically Activated Monitor Valve 

A 3-way solenoid valve, activated by an electric current or an electric 

pulse, opens or closes the main valve. The standard valve is supplied 

in the “normally closed” position. The “normally open” position is 

optional. Electric activation can be added to other control applications 

on request. 

Features: 

4 Low power electric activation 




30U-DE/EL 

68-DE/EL 

15 

Edition 07/2012


Automatic Distribution Valves 

PR/UL 

UL 

R 

Pressure Reducing Valve 

Hydraulic pressure-reducing valve 

The valve maintains a pre-set fixed downstream pressure, 

regardless of upstream pressure or flow rate variations. 

Features: 


4 PN16/230psi and PN25/360psi pressure rated valves 


throttling plug or by-pass valves. 



30-PR/UL 



PS/UL 

UL 

R 

Pressure Sustaining/Relief Valve 

Hydraulic pressure sustaining/relief valve 

The valve maintains a pre-set fixed upstream pressure, 

regardless of downstream pressure or flow rate variations. 

The valve will be closed drip tight when the upstream pressure 

is lower than the set value. 

30-PS/UL 

Features: 

4 UL certified Fire Pump Relief Valve 

4 PN16/230psi and PN25/360psi pressure rated valves 


throttling plug or by-pass valves. 





47-PS/UL 

16 

Edition 07/2012

Water Level Control Valves 


FL 

Modulating Float Controlled Valve 

The main valve is controlled by a float valve, located in the tank or 

reservoir and set at the required maximum water level. The valve 

maintains the maximum level continuously. 

Features: 

4 Accurate level control. 




30-FL 

FLEL 

Electric Float Controlled Valve 

An electric sensor float, located in the tank/reservoir, sends a 

command to a solenoid controlled valve. The main valve will fully 

open when the solenoid is activated and closes drip tight when the 

solenoid is de-energized, thus enabling accurate and reliable 

differential level control. 

Optional Addition: Surge-Preventing Closure. 

Features: 

4 Accurate differential level control 

4 Low power electric activation 





68-FL 

30-FLEL 

68-FLEL 

17 

Edition 07/2012


Water Level Control Valves 

FLDI 

Differential Float Pilot Controlled Valve 

A Float valve controls the main valve, closing it when the water 

reaches maximum level, and opening it when the water drops to 

its preset minimum level. 

The differential between the maximum and the minimum levels 

is adjustable. 

Optional Addition: Stepped Surge-Preventing Closure. 

Features: 


4 Adjustable differential 





30-FLDI 

AL 

Altitude Pilot Controlled Valve 

68-FLDI 

The main valve is controlled by a highly sensitive pilot, located 

outside the tank. 

The pilot opens or closes the valve in response to the static pressure 

of the water. The pilot allows for differential adjustments between the 

maximum and minimum level. 

Optional Addition: Surge-Preventing Closure. 

Features: 



4 Easy access - no float is located in the tank\reservoir 




30-AL 

68-AL 

18 

Edition 07/2012

Hydrants 


HY 

Hydraulic Hydrant Valve 

The valve is controlled manually by a selector that allows the 

user to select the closed or open position of the valve. 

The control is affected effortlessly and quickly, even under high 

pressure conditions. The opening speed is controlled by a vent 

orifice. 

44-HY 

Features: 


4 Controlled response 



HY/PR 

Hydraulic Pressure-Regulating Hydrant Valve 

The valve is controlled manually by a selector that allows the 

user to select the closed or open position of the valve. 

The control is affected effortlessly and quickly, even under high 

pressure conditions. The opening speed is controlled by a vent 

orifice. 

Features: 


4 Controlled response 



82-HY 

LEHAVA 

LEHAVA / ZIK 

Hydrant Valve 

LEHAVA 

3” (80mm) Angle Hydrant, Non-rising stem, Ductile Iron Body and 

Bronze seat. 

Features: 

4 Low operation torque 

4 High grade materials 

4 Available as a double (twin) valve assembly 

ZIK 

19 

Edition 07/2012

Innovation 

Innovation 

Expertise 

Expertise 

Reliability 

Reliability 

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 hydraulic 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

Fire Protection catalogue - Dorot Control Valves

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