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SEE "SEAT DE AT DETAIL NO. 2" Ø290 Ø248 Ø240 Ø201 R 3 R 2.00 R 2 G 92 50 6.3 6.3 CONTROL VALVES RAM ® 400 Series Hydraulic Control Valves
23

400 Series Agriculture - Pumping

Nov 27, 2021

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Page 1: 400 Series Agriculture - Pumping

SEE "SEAT DE

AT DETAIL NO. 2"

Ø290

Ø248

Ø240

Ø201

R 6

R 3

R 2.00 R 2

G

30

9250

6.3

6.3

6.3

CONTROLVALVES

RAM® 400 SeriesHydraulic Control Valves

Page 2: 400 Series Agriculture - Pumping

LW

H

R

Flow Chart

Flanged

2"

205

155

245

155

78

9.0

3R"

210

187

270

200

100

12.1

3"

250

210

310

200

100

19.0

4"

320

242

328

223

112

28.0

6"

415

345

550

306

140

68.0

8"

500

430

660

365

170

125.0

10"

605

460

690

405

202

140.0

12"

724

635

930

580

240

290.0

Dimensions and Weights

Size

L (mm)

H (mm)

Hf* (mm)

W (mm)

R (mm)

Weight (kg)

*Hf = Height with optional flow stem (at open position)

Threaded

2"

180

111

205

120

38

4.0

21/2"

210

133

226

129

46

5.7

3R"

210

140

228

129

55

5.8

3"

255

160

260

175

55

13.0

3/4"

112

67.5

72

20

0.95

1"

112

67.5

72

20

0.95

11/2"

150

83

90

27.5

1.5

2"

205

106

200

120

32

5.0

3"

250

156

255

175

46

10.6

4"

320

190

300

200

60

16.2

Grooved(Victaulic)

21/2"

205

178

260

178

89

10.5

Technical dataValve Pattern: GlobeSizes: 3/4", 1", 11/2", 2", 21/2", 3"R, 3", 4", 6",

8", 10",12" & 16”REnd Connections:– Female threaded NPT/BSP

3/4", 1", 11/2", 2", 21/2", 3"R & 3"– Grooved (Victaulic):

2", 3", 4" & 6”– Flanged: ISO PN16, ANSI 125, BST-D

2", 21/2", 3"R, 3", 4", 6", 8", 10", 12" & 16”ROperating Pressure Range:0.5-16 bar (7-230 psi)Temperature Range:Water up to 80°C (175°F)Materials:– Body and Cover:

3/4", 1", 11/2" Brass only2"-16”R Cast Iron, Polyester coated

– Diaphragm: Nylon-fabric Reinforced NaturalRubber; Options: NBR, EPDM

– Spring: Stainless steel(Other materials and coatingsavailable on request).

Hea

d lo

ss (

bar

)

Flow Rate (m3/h)

604 5 6 8 10 20 30 4015 80 100 600200 300 400150 8001000

2" 21 /2"

3"R

3" 6"4" 8" 10"

2000

12"-

16”R

0.01

0.02

0.030.04

0.060.080.1

0.2

0.30.4

0.60.81.0

0.15

1 2 31.5

11 /2"

1"3 /4"

11/0

1

CONTROLVALVES8

t e c h n i c a l s p e c i f i c a t i o n sGlobe pattern

RAM 400 Series

6"

415

404

609

306

85

49.0

16"R

742

695

971

600

300

377.0

Page 3: 400 Series Agriculture - Pumping

Flow Rate (m3/h)

Hea

d lo

ss (

bar

)

604 5 6 8 10 20 30 4015 80 100 600200 300 400150 8001000

0.015

0.01

0.02

0.030.04

0.060.08

0.1

0.2

0.30.4

0.60.81.0

0.15

Flow Chart

2" 3" 4"

2000

LW

H

h

Technical dataValve Pattern: AngleSizes: 2", 21/2", 3" & 4"End Connections:– Female threaded NPT/BSP

2", 21/2" & 3"– Grooved (Victaulic):

3" & 4"– Flanged: ISO PN 16, ANSI 125, BST-D

2", 3" & 4"Operating Pressure Range:0.5-16 bar (7-230 psi)Temperature Range:Water up to 80°C (175°F)Materials:– Body and cover: Cast Iron, Polyester-

coated– Diaphragm: Nylon-fabric Reinforced

Natural Rubber; Options: NBR, EPDM– Spring: Stainless steel(Other materials and coatings availableon request).

Dimensions and Weights

Size

L (mm)

H (mm)

Hf* (mm)

W (mm)

h (mm)

R (mm)

Weight (kg)

2"

70

119

211

118

61

38

4.4

Threaded Flanged

3"

110

184

336

170

80

55

11.0

3"

120

194

346

170

90

45

10.0

4"

160

223

309

204

112

58

16.0

2"

121

157

249

155

83

78

9.0

3"

153

200

278

200

101

100

17.0

4"

160

223

309

223

112

112

26.0

*Hf = Height with optional flow stem (at open position)

Grooved(Victaulic)

R

6/99

21/2"

110

182

275

131

93

65

5.8

21/2"

CONTROLVALVES 9

t e c h n i c a l s p e c i f i c a t i o n sAngle pattern

RAM 400 Series

Page 4: 400 Series Agriculture - Pumping

10 CONTROLVALVES

General view

t y p i c a l a p p l i c a t i o n s

RAM 400 Series

Page 5: 400 Series Agriculture - Pumping

11CONTROLVALVES

M o d e l 4 0 5 – ZHydraulic Diaphragm Control Valve

26

CA

0

DescriptionModel 405-Z Hydraulic Control Valve isdesigned to open and close drip-tight inresponse to an hydraulic remote com-mand/or local command. Standard valveis supplied with a 4-way ball valve thatselects positions between open, close, orauto.

Control list

400-G RAM 400-Globe26 4-way Cock Valve

RAM 400 Series

Page 6: 400 Series Agriculture - Pumping

12

M o d e l 4 1 0

CONTROLVALVES

Electric Remote Diaphragm Control Valve

15NO

4A

DescriptionModel 410 Electrical Remote ControlValve is designed to open and close drip-tight in response to an electrical signal.

• The valve opens and closes in respon-se to an electrical signal. Used in auto-matic industrial and irrigation systems.

Note: The standard model is normallyclosed (N.C.) [energized to open]. Thenormally open (N.O.) model is alsoavailable on request.

OPTIONALElectric Remote Control Valve * (with BERMAD Solenoid to suite valve

sizes 2” up to 4”).* Sizes 6” to 10” is supplied with ASCO

solenoid.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter15 3-way, N.O.Sol.Pilot valve

RAM 400 Series

Page 7: 400 Series Agriculture - Pumping

2

28A

1 2

34

31

4A

13CONTROLVALVES

M o d e l 4 2 0Pressure-Reducing Valve (with 2W PC-20-A pilot)

DescriptionModel 420 Pressure Reducing Valve is anautomatic control valve designed toreduce a higher inlet pressure to a lowerconstant outlet pressure, regardless offluctuating flow rates and/or varying inletpressure. It is a pilot-controlled, hydrauli--cally operated diaphragm-type globe orangle 405 valve.

The pressure-regulating pilot sensesdown-stream pressure and modulatesopen or close, causing the main valve tothrottle, thus maintaining constant de-livery pressure. The pressure-regulatingpilot has an adjusting screw to preset thedesired pressure,

When down-stream pressure falls belowthe pilot setting, the pilot and main valvemodulate open to increase pressure andmaintain pilot setting. When down-stream pressure rises above the pilotsetting, the pilot and main valve throttleclose to decrease pressure and maintainpilot setting.

Control list

400-G RAM 400-Globe28A 2-way Pressure-Reducing,

Pilot Valve, 4A In line, Self Flushing Filter 31 Control Orifice2 Cock Valve

RAM 400 Series

Page 8: 400 Series Agriculture - Pumping

21

8

12

25

4A

14 CONTROLVALVES

M o d e l 4 2 0Pressure-Reducing Valve (with #2 2W pilot valve)

DescriptionModel 420 Pressure-Reducing Valve is anautomatic control valve designed toreduce a higher inlet pressure to a lowerconstant outlet pressure, regardless offluctuating flow rates and/or varying inletpressure. It is a pilot controlled, hydrauli--cally operated diaphragm-type globe orangle 405 valve.

The pressure-regulating pilot sensesdown-stream pressure and modulatesopen or closed, causing the main valve tothrottle, thus maintaining constantdelivery pressure. The pressure-regulatingpilot has an adjusting screw to preset thedesired pressure,

When down-stream pressure falls belowthe pilot setting, the pilot and main valvemodulate open to increase pressure andmaintain pilot setting. When down-stream pressure rises above the pilotsetting, the pilot and main valve throttleclosed to decrease pressure and maintainpilot setting.

Control list

400-G RAM 400-Globe8 2/way Pressure-Reducing,

Pilot Valve 2-way4A Self Flushing Filter 1 Cock Valve2 Cock Valve25 Pressure Gauge21 Needle valve

RAM 400 Series

Page 9: 400 Series Agriculture - Pumping

1 2

50

28A

1 2

34

31

Remote Control

2

4A

15CONTROLVALVES

M o d e l 4 2 0 – 5 0Pressure-Reducing w. Hydraulic Remote Control

DescriptionModel 420-50 Pressure-Reducing Valve isan automatic control valve designed toreduce a higher inlet pressure to a lowerconstant outlet pressure regardless of fluc-tuating flow rates and/or varying inletpressure. It is a pilot-controlled, hydrauli--cally operated-rated diaphragm-typeglobe or angle 405 valve.

The pressure-regulating pilot sensesdown-stream pressure and modulatesopen or close, causing the main valve tothrottle, thus maintaining constant delive-ry pressure. The pressure-regulating pilothas an adjusting screw to preset thedesired pressure. When down-streampressure falls below the pilot setting, thepilot and main valve modulate open toincrease pressure and maintain pilotsetting.

When down-stream pressure rises abovethe pilot setting, the pilot and main valvethrottle close to decrease pressure andmaintain pilot setting.

A mini hydraulic valve is installed at thecontrol loop to enable remote shut-offby an irrigation controller.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter2 Cock Valve28A 2-way Pressure Reducing

Pilot Valve50 Hyd. Remote Control Valve 20 2-way Hyd. Pilot Valve31 Control Orifice

RAM 400 Series

Page 10: 400 Series Agriculture - Pumping

32A15M

C

V26

CA

0

2

3

1

NO

4A

16 CONTROLVALVES

M o d e l 4 2 0 – 5 5 - Z XPressure-Reducing w. Electric Shut-off Control& Manual Control Selector (with 3W pilot valve PC-X-A)

DescriptionModel 420-55 Pressure-Reducing Valve isan automatic control valve designed toreduce a higher inlet pressure to a lowerconstant outlet pressure regardless offluctuating flow rates and/or varying inletpressure. It is a pilot-controlled, operateddiaphragm-type globe or angle 405valve.

The pressure-regulating pilot sensesdown-stream pressure and modulatesopen or closed, causing the main valve tothrottle, thus maintaining constant deli-very pressure. The pressure-regulatingpilot has an adjusting screw to preset thedesired pressure,

When down-stream pressure falls belowthe pilot setting, the pilot and main valvemodulate open to increase pressure andmaintain pilot setting.

When down-stream pressure rises abovethe pilot setting, the pilot and main valvethrottle closed to decrease pressure andmaintain pilot setting.

Electrical remote control via a solenoidvalve intercepts normal pressureregulation for on/off control. The 3Wpilot regulation enables the valve toopen fully when pressure in the mainsystem falls below set point. Available intwo types:

Standard: N.C. (normally closed) energized to open

Optional: N.O. (normally open)energized to close.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter26 4-way Cock Valve15M 3-way N.O. Sol. w. Manual

Override32A 3-way Positioning Pilot Valve

RAM 400 Series

Page 11: 400 Series Agriculture - Pumping

17CONTROLVALVES

M o d e l 4 2 3Pressure-Reducing & Pressure-SustainingControl Valve

30A

1 2

34

2

28A

1 2

34

31

4A

DescriptionModel 423 Pressure-Reducing & Pressure-Sustaining Valve is an automatic controlvalve designed to maintain constantpreset minimum up-stream pressure, andto maintain a constant reduced systempressure regardless of changing systemdemand.

It is a pilot-controlled, hydraulically ope-rated diaphragm type globe or angle405 valve. The pressure-regulating pilotsenses up-stream pressure and modu-lates open or closed, causing the mainvalve to throttle.

The pressure-regulating pilot has anadjusting screw to preset the desiredpressure. When up-stream pressure risesabove the sustaining pilot setting, thepilot and the main valve modulate toopen to relieve main line pressure andmaintain pilot setting pressure. Whenup-stream pressure falls below the pilotsetting, pilot and main valve throttleclosed to maintain the preset pilotsetting pressure. When down-streampressure rises above the reducing pilotsetting, the pilot and main valve throttleclosed to decrease pressure andmaintain pilot setting.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter2 Cock Valve30A 2-way Pressure-Sustaining

Pilot28A 2-way Pressure-Reducing

Pilot Valve31 Control Orifice

RAM 400 Series

Page 12: 400 Series Agriculture - Pumping

4A

30A

1 2

34

31

2

18 CONTROLVALVES

DescriptionModel 430 Pressure-Sustaining valve is anautomatic control valve designed torelieve excess pressure or sustain aminimum up-stream back-pressure. It is apilot-controlled, hydraulically operateddiaphragm-type globe or angle 405 valve.

The pressure-regulating pilot senses up-stream pressure and modulates open orclose, causing the main valve to throttle.The pressure-regulating pilot has anadjusting screw to preset the desiredpressure. When up-stream pressure risesabove the pilot setting, the pilot and themain valve modulate to open to relievemain line pressure and maintain pilotsetting pressure.

When up-stream pressure falls below thepilot setting, pilot and main valve throttleclosed to maintain the preset pilot settingpressure.

• Sizes 2”-4”.

• Pressure setting range: 0.5 to 12 bar.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter30A 2-way Pressure-Sustaining

Relief Pilot Valve 31 Control Orifice2 Cock Valve

M o d e l 4 3 0Pressure-Sustaining Valve (with 2W PC-30-A Pilot Valve)

RAM 400 Series

Page 13: 400 Series Agriculture - Pumping

4A

12

25

21

9

19CONTROLVALVES

M o d e l 4 3 0Pressure-Sustaining Control Valve (with 2W #3 Pilot Valve)

DescriptionModel 430 Pressure-Sustaining valve is anautomatic control valve designed torelieve excess pressure or sustain a mini-mum up-stream back-pressure. It is a pilot-controlled, hydraulically operated dia-phragm-type globe or angle 405 valve.

The pressure-regulating pilot senses up-stream pressure and modulates open orclosed, causing the main valve to throttle.The pressure-regulating pilot has anadjusting screw to preset the desiredpressure. When up-stream pressure risesabove the pilot setting, the pilot and themain valve modulate to open to relievemain line pressure and maintain pilotsetting pressure.

When up-stream pressure falls below thepilot setting, pilot and main valve throttleclosed to maintain the preset pilot settingpressure.

• Sizes 6”-10”.

• Pressure setting range: 0.5 to 16 bar.

Control list

400-G RAM 400-Globe9 2-way Pressure-Sustaining/

Relief Pilot Valve #321 Needle Valve4A In-Line Self Flushing Filter1 Cock Valve2 Cock Valve25 Pressure Gauge

RAM 400 Series

Page 14: 400 Series Agriculture - Pumping

4A

26

CA

0

32A

1 2

3

20 CONTROLVALVES

M o d e l 4 3 0 – Z XPressure-Sustaining Control Valve (with 3W PC-X-A Pilot)

DescriptionModel 430-zx Pressure-Sustaining valveis an automatic control valve designedto relieve excess pressure or sustain aminimum up-stream back-pressure. It is apilot-controlled, hydraulically operateddiaphragm-type globe or angle 405valve.

The pressure-regulating pilot senses up-stream pressure and modulates open orclose, causing the main valve to throttle.The pressure-regulating pilot has anadjusting screw to preset the desiredpressure. When up-stream pressure risesabove the pilot setting, the pilot and themain valve modulate to open to relievemain line pressure and maintain pilotsetting pressure.

When up-stream pressure falls below thepilot setting, pilot and main valvethrottle close to maintain the preset pi-lot setting pressure.

Model 430-zx is specifically designed forsustaining pressure in low pressurezones. The 3w pilot can be fully openmost of the time without causing anyextra head loss to the system. The valveis activated only when pressure fallsbelow the set point.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter32A 3-way Positioning Pilot

Valve 26 4-way Cock Valve

RAM 400 Series

Page 15: 400 Series Agriculture - Pumping

21CONTROLVALVES

4A

32A

1 2

3

26C

A0

15B

C

V

NO

M o d e l 4 3 0 – 5 5 - Z XPressure-Sustaining Valve w. Electric Control

DescriptionModel 430-55 Pressure-Sustaining Valveis an automatic control valve designedto relieve excess pressure or sustain aminimum up-stream back-pressure. It is apilot-controlled, hydraulically operateddiaphragm-type globe or angle 405valve. The pressure-regulating pilotsenses up-stream pressure andmodulates open or close, causing themain valve to throttle.

The pressure-regulating pilot has anadjusting screw to preset the desiredpressure. When up-stream pressure risesabove the pilot setting, the pilot and themain valve modulate to open to relievemain line pressure and maintain pilotsetting pressure. When up-streampressure falls below the pilot setting,pilot and main valve throttle closed tomaintain the preset pilot settingpressure.

Electrical remote control via a solenoidvalve intercepts normal pressureregulation for on/off control. Available intwo types:

Standard: N.C. (normally closed) energized to open

Optional: N.O. (normally open) energized to close.

Control list

400-G RAM 400-Globe

4A In line, Self Flushing Filter26 4-way Cock Valve32A 3-way Positioning Pilot Valve15B 3-Way N.O.BERMAD

Sol. Pilot Valve

RAM 400 Series

Page 16: 400 Series Agriculture - Pumping

30QA

38

4A

22 CONTROLVALVES

DescriptionModel 43Q Quick Pressure Relief Valve isan automatic control valve speciallydesigned to provide a solution to thetypical problems associated withspringload relief valves when constantdrifting of relief adjustment occurs.

The valve comprises: accurate reliefpressure setting that remains constant,opening to full capacity on minimumpressure rise in the pipe line; regulatedrate of closure providing smooth closurewithout causing pressure surges.

• Used in sizes 2”-4”.

• Pressure setting up to 12 bars.

Control list

400-A RAM 400-Angle4A In line, Self Flushing Filter30QA Quick Pressure, Relief Pilot

metal)38 Cock Valve, w/ vent

M o d e l 4 3 QPressure Relief Valve (Quick Action Type)

RAM 400 Series

Page 17: 400 Series Agriculture - Pumping

23CONTROLVALVES

M o d e l 4 5 0 – 6 0Reservoir Float Control Valve (Modulating Type)

DescriptionModel 450-60 Reservoir Valve is anautomatic control valve designed to fillreservoirs or tanks and to shut off whenthe water reaches a predeterminedlevel. The valve opening will modulate,adjusting the fill rate to a discharge flowwhile maintaining a constant upper le-vel in the reservoir.

An upper control chamber, operating ona two way control principle, has varyingpressure produced by pilot modulationand opens in conjunction with an up-stream restriction needle valve.

If the water rises to a predeterminedlevel, float action will tend to close thepilot valve, and the main valvemodulates to close. When water leveldrops below set point, the float willdrop, following the water level,releasing water pressure from the controlchamber to open the main valve.

Since the control loop is a 2-way loop,the valve will modulate constantlytrying to keep the tank level stable.

Control list

400-G RAM 400-Globe4A In line, Self Flushing

Filter2 Cock Valve31 Control Orifice22 2-way Float Pilot

Valve #60

4A

231 22

RAM 400 Series

Page 18: 400 Series Agriculture - Pumping

24 CONTROLVALVES

M o d e l 4 5 0 – 6 6Two-Level Reservoir Control Valve (On-Off type)

DescriptionModel 450-66 Two-Level Reservoir Con-trol Valve is an automatic control valvedesigned for two-level control of thewater level in reservoirs and tanks. Fullvalve opening reduces head loss to aminimum, prevents abrasion and redu-ces cavitation damage.

The valve can be operated via anindependent external pressure sourcewhen line pressure is very low, or whenthe water/liquid is very dirty or highlycorrosive. When water level rises to theset point, the float mechanism will belifted by the water and it will reach theset point limit, change position of thepilot valve, and valve will close.

When water level falls, the float willfollow the water level. It will changeposition only when it reaches the lowerlevel limit. The pilot then changesposition and valve will open.

Control list

400-G RAM 400-Globe4A In line, Self Flushing

Filter66 4-way Two Level Float

Pilot Valve

4A

P V

2

1

66

RAM 400 Series

Page 19: 400 Series Agriculture - Pumping

25CONTROLVALVES

M o d e l 4 5 0 – 6 7Modulating Type, Vertical Float Mechanism

DescriptionModel 450-67 Modulating Float valve isan automatic control valve designed tomaintain a constant level in a reservoiror storage tank by controlling the supplyflow into the reservoir/storage tank or(in special applications) the demandflow (discharge) from the reservoir or sto-rage tank.

The float pilot is a 2-way pilot driven bythe float mechanism and the waterlevel.

When water level falls the float will reactby dropping with the water level, andthe main valve opens to supply the usedvolume back into the tank.

Control list

400-G RAM 400-Globe4A In line, Self Flushing

Filter67 2-way Float Pilot Valve,

Vertical2 Cock Valve31 Control Orifice

4A

23167

RAM 400 Series

Page 20: 400 Series Agriculture - Pumping

21

18D

2

34

4A

CONTROLVALVES

26

M o d e l 4 7 0 – UFlow Control Valve Orifice Plate Type (2-way control)

DescriptionModel 470-U-2W Flow Rate Valve is anautomatic control valve designed to main-tain a constant preset flow rate, regard-less of changing system pressure anddemand. A valve pressure differentialpowers the diaphragm to operate thevalve.

The valve operates on a two-way controlprinciple. If flow rate exceeds the pilotsetting, the increased orifice differentialpressure will signal the pilot tocommand the main valve to throttle.

• Valve is used in sizes 6-10”

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter18D Differential Pressure-

Reducing Pilot Valve #2D34 Orifice Plate2 Cock Valve21 Needle Valve (Integral)

RAM 400 Series

Page 21: 400 Series Agriculture - Pumping

CONTROLVALVES

27

M o d e l 4 7 0 – X UFlow Control Valve Orifice Plate Type (3-Way Control)

32A

1 2

3

34

4A

DescriptionModel 470-XU Flow Rate valve is anautomatic control valve, designed tomaintain a constant preset backflushingflow at gravel filter systems.

The valve operates on a 3-way controlprinciple. It maintains preset flow rateregardless of changing system up-stream pressure. If flow rate exceeds themini pilot setting, the increased orificedifferential pressure will signal the minipilot to order the valve to throttle.

• Valve is used in sizes 2”-4”.

• Orifice is usually built in the main valve inlet side.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter32A 3-way Positioning Pilot

Valve Differential34 Orifice Plate

RAM 400 Series

Page 22: 400 Series Agriculture - Pumping

CONTROLVALVES

29

1

2 3

26

CA

0

4A

28

M o d e l 4 7 0 – J ZFlow Control Paddle Type (3-Way Control)

DescriptionModel 470-JZ-3W Flow Rate Valve is anautomatic control valve, designed tomaintain a constant preset flow rate,regardless of changing system pressureand demand. A valve pressuredifferential powers the diaphragm tooperate the valve.

The valve operates on a 3-way controlprinciple. If flow rate exceeds the pilotsetting, the increased flow will powerthe paddle in the stream line. Paddlemovement will operate the pilot tocommand the main valve to throttle.

When flow decreases, the pilot valveand paddle will come to a halt and thepilot will signal the valve to open theflow rate setting.

A 3-way Ball Valve Selector is added tothe valve, providing the valve with theoption of closing or opening manually.

Control list

400-G RAM 400-Globe26 4-way Cock Valve4A In Line, Self Washing

Filter29 Flow, Mini Pilot Valve,

Paddle type

RAM 400 Series

Page 23: 400 Series Agriculture - Pumping

CONTROLVALVES

4A

23

1 2

10D

26

CA

0

34

29

M o d e l 4 9 0 – U ZAnti Burst Control Valve

DescriptionModel 490-UZ Anti Burst (excessiveflow) Control Valve, designed to auto-matically shut off water supply if theflow demand exceeds preset point. Thevalve operates on a 3-way controlprinciple and installed with an up-stream orifice device.

If flow rate exceeds the pilot setting(usually caused by burst pipe), theincreased orifice differential pressure willsignal the pilot to command the mainvalve to close and “lock”. Reopening thevalve requires manual resetting.

• The valve is usually used as a safety device in long water lines.

Control list

400-G RAM 400-Globe4A In line, Self Flushing Filter10D 3-way Positioning Pilot Valve

#X Differential34 Orifice Plate23 3-way Hyd. Remote

Control Valve26 4-way Cock Valve

RAM 400 Series