broad valve user manual.pdf

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2008.07 English

User’s Manual

BROAD MOTOR VALVE



Product Overview

Safety StandardBROAD completely-sealed motor valves are inaccordance with European CE certificate and theAmerican ETL certificate. In order to achievegood performance and ensure safety, this manual

must be read carefully and understood thoroughlybeforehand.

Function·Flow adjusting (PID)·Flow shutoff (completely)·Automatic shutoff upon power failure

Applicable to·Widely used for cooling, heating, watersupply and drainage, chemical engineering,

food, energy and other industries·Chilled/heating water, cooling water,domestic hot water, city water, steam, air,nitrogen, exhaust, oil and other non-corrosivemediums

·Low-corrosive mediums (e.g. beverages)·Special orders for corrosive mediums

Technical Features·The only valve in the world that ensures 100% shutoff(leakage rate for other similar products

is 1% min)·Automatic shutoff upon power failure·Low resistance, far less than similar products·High pressure bearing and light-weighted·Prices are very competitive, account for 40% of those for similar products in Europe and theUS.

NomenclatureB V S-150-2-16

Working pressure, bar

Valve structure

(2: 2-way, 3: 3-way)

Piping diameter (DN),mm

Medium(S: steam & water,

E: exhaust)

Motor valve

BROAD

Parameters

Steam and Water Motor Valve(motor valve for short)

Items specifications

Working pressure 8/16 barMax 24bar(special order)

Medium water, steam, air, oil(other

mediums for special orders)

Medium temperature 0～180 ℃

Ambient temperature －30～55 ℃

Power supply 220/110 V,50/60 Hz

Protection Level IP 44

Input signal 4～20 mA analog signal

Material Body with low carbon steel,

shaft and sealing surface

with stainless steel

Sealing Special polypropylene

Leakage rate 0

Connecting Mode Standard flange

Exhaust Motor Valve (exhaust valve for short)

Items specifications

Working pressure 0.3 bar

Max 1bar(special order)

Medium exhaust

Medium temperature ≤600 ℃

Ambient temperature －30～70 ℃

Power supply 220/110 V,50/60 Hz

Protection Level IP 44

Input signal 4～20 mA analog signal

Material stainless steel

Sealing aluminum silicate

Leakage rate 0

Connecting Mode thin flange

Reading Guidelines

operation-oriented information

Knowledge-oriented information

1



Actuator

Transmission nut

Transmission screw

Shaft connectorValve shaft

Valve body

Lower connecting pipe

Actuator

Transmission nut

Transmission screw

Shaft connectorValve shaft

Valve body

Lower sealing plate(2-way)

Lower connecting pipe(3-way)

Working Principles

Motor Valve

Exhaust Valve

The controller receives external 4～20 mAanalog signals and sends voltage signals toactuator to drive motor after comparison andcalculation. The meshing between transmissionnut and transmission screw changes motors’

rotation to linear reciprocating motion toactualize motor valves’regulating and on/offfunction.

3-way motor valve on/off and regulating sketch

Exhaust valve on/off regulating sketch

2

2-way:B-C

2-way:A-C

3-way:A-CB-C

A

B

C

A

B

C

A

B

C

2-way:A-B

2-way:A-C

3-way:A-BA-C

A

B

C

A

B

C

B

A C



Diameter and Structure

Motor Valve

DN 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400

A 687 687 687 687 722 742 919 927 973 989 1312 1372 1496 1716 1716

B 50 50 50 50 76 76 144 144 144 168 217 235 273 363 363

D 210 210 210 230 230 310 350 410 480 530 645 825 880 1070 1170

E 90 90 90 90 90 110 110 110 130 130 180 180 200 220 220

Unit: mm

3

Capacitance

Potentiometers

Limit switch

Valve cover

Geared motor

Analog controller

Accumulator

Motor installation plate

Supporter

Transmission screw

Transmission nut

Process plate

Shaft connector

Valve body

Valve plate

Flange

Valve shaft

Lower sealing plate(2-way)Lower connectingpipe(3-way)

DN

D

A

B

E



Diameter and Structure

Exhaust Valve

DN 150 200 250 300 400 500 600 700 800 900 1000 1250 1500

A 1220 1415 1595 1795 2285 2570 2800 3205 3375 3695 4000 4420 5200

B 275 350 415 480 610 745 835 975 1045 1165 1270 1425 1730

E 520 690 815 870 1300 1600 1950 2100 2350 2600 2750 3400 3700

Remarks: the same structure with motor valve, Unit: mm

4

B

DN

A

E



Storage and Transportation·Ambient temperature: -40 ～ 70 ℃·Relative humidity: 50 ～ 90% ·Dry and well-ventilated, without seriouscorrosive gas around

·Avoid rain or other liquid dripping or splashingor direct sunshine

·Exert force on flanges or lugs only intransportation. Actuator and supporter areforbidden for rigging and force bearing.

·Dangerous operation (e.g. throwing, casting)is forbidden

·Vertically placed and fixed, and avoidaccidental vibration or impact.

Installation Mode:

uprightConnecting Mode:flange connection as follows

①Clean the flange connecting surface②Install 2-3 bolts loosing at the bottom offlange

③Insert the gasket to the connecting point (thebolts at the bottom helps locating)

④Insert all the bolts and screw them tightly asbelow

Installation Tips·Adjust the connecting pipeline beforeinstallation so that it’s naturally coaxial withvalve body’s flange to avoid stress

·Remove welding slag, gravel, fabrics and

other impurities·12～30 mesh filter at valve inlet·Space clearance for the installation andmaintenance as below

·The arrow direction on the valve body mustbe the same with medium flow in installation

·If the valve is installed in long pipeline orwith excessive vibration, supporters must beadded to avoid vibration

·A manual shut-off valve is recommended atvalve inlet. On important occasions, bypass

pipeline is to be added for manual operationif fault occurs or maintenance is needed

·Heat insulation for valve body and piping isneeded if medium temperature≥60 ℃, andsafety sticker must be used (no insulation foractuator)

·Wiring must comply with local engineeringregulations

Attention

①The valve is recommended for indoorinstallation in a dry environment without rain.If installed outdoors, please make sure theactuator is free from rain.

②Actuator is not allowed to run naked toprevent electric shock.

③No touch of motor or valve while it’s runningso that scald can be eliminated.

Installation

H≥500 mm

5

1

28

5

3

7

4



Wiring Diagram

L、N: AC 220V Power supply3、4: 4～20 mA analog signal input

5、6: fault signal output: grounding

Cable Specification

Item specification

Power supply cable 0.75～1.5 mm2

Signal wire 0.5～1 mm2

Internal Wiring Diagram

WiringShut off power supply, and open the cover.Wiring per wiring diagram, then put on thecover.

Attention①Power supply cable and signal wire can notbe shared, and must be from differentconduits.

②Power supply cable must be in compliancewith local standards.

③Signal wire must be shielded with reliablegrounding.

④Power supply must be cut before wiring isconnected to avoid electric shock.

⑤Keep terminals away from water duringoutdoor installation, and no work on rainydays. Put on the cover after installation, andbe sure to be free from water and moisture.

⑥Reliable grounding⑦Please check if power supply voltage is thesame as that in the nameplate before poweris on to avoid motor and power reset devicedamage.

Notice: Left diagram is forreference only, it must bestrictly connected perwiring diagram inside thevalve cover.

Wiring 6

L N 3 4 5 6

6543NLO L

O N

I -

I +

F 1

F 2

External terminals



Panel

Display LED Description

Statusindicator

OPEN “OPEN”

SHUT “SHUT”

MANU Manual control

AUTO Automatic control

MODE

indicator

DRTA 4mA-open, 20mA-shut

RVSA 4mA-shut, 20mA-openOPEN Valve open to utmost extent

STOP Valve stop at the position

SHUT Valve open to least extent

Key-press A/M manual/auto switch/resetconfirmation

▲ value +/switch/manual controlopen

value -/switch/manual controlclose

Error Code ListErrorcode

Cause

E_03 The signal feedback cable or switch cablebetween the controller and the actuator areconnected reversely

E_05 The vibration of actuator is violent probablybecause the input signal or feedback signalis not steady or the precision setting is toohigh

E_06 The actuator is locked in the SHUT direction

E_07 The actuator is locked in the OPEN direction

E_08 Interior temperature of actuator is over 70℃

Operating Procedure (follow the flow from U0to U5)

Electronic brake and positioning precisionsetting (U0)Press and hold A/M keys for 4 seconds, use

▲or▼ keys to modify X1 or X2U0 original setting: 001.0

Action and input signal break mode setting(U1)Press A/M key, use ▲or▼ keys to modify X1or X2U1 original setting: 001.3

Control output lower limit setting (U2)Press A/M key, use ▲and▼ keys to modifyU2 original setting: 000.0

Control output upper limit setting (U3)Press A/M key, use ▲ and▼ keys to modifyU3 original setting: 100.0

Adjustable precision setting (U4)Press A/M key, and ▲and▼ keysU4 original setting:＜BVS80:001.0BVS80-150:000.5,＞BVS150:000.3

Operation password setting (U5)Press A/M key, and ▲and▼ keysSet U5=000.5. Press A/M key to return to autocontrol status

Set zero and full positions of actuator

Manual setting: Set U5 as 003.1 and press A/Mto confirm. Press ▼ if U6 displayed or ▲ ifU7 displayed, the valve will move to zero orfull position. Then press A/M to confirm andreturn. Set U5 as 000.5 and press A/M to savethis setting.Auto setting: In auto mode, press A/M and ▼at the same time, the valve acts and then returnsafter recording the zero/full position. Set U5as 000.5, and press A/M to save this setting

Parameter displayIn auto mode, if press ▲, LED will display thesetting opening; If press ▼, LED will displaycontroller interior temperature.

Notice: Parameters have been set by themanufacturer, so we do not recommend anymodification by users in order to avoidunexpected problems. Any modification ofparameters caused by parts replacement orother reasons should be conducted under theguidance of BROAD service engineers.

Controller Parameter Setting7

MODE

OPEN

SHUT

MANU

AUTO

DRTA RVSA OPEN STOP SHUT

A M



NO. Faults Causes Solutions

1 Valve no action, controllerpower indicator off

1.no power supply2.poor wiring of power supply3.fuse broken

1.turn on the power supply2.rewiring3.replace fuse

2 Valve no action, powerindictor on but signalindicator off

1.no signal input2.signal cable reverse wiring

1.input control signal2.rewiring

3 Motor gets overheated andstops

1.overload2.protection against over temperature3.inaccurate zero/full position4.impurities in valve body5.motor fault

1.reduce load2.reduce load or temperature3.readjusting4.dismantle the valve to remove *5.repair or replace *

4 Reaction insensitive andmotor moment decreasing

1.power abnormal2.capacitor broken3.great deviation of input signal

4.drift of controller’s precision

1.supply standard power2.replace capacitor *3.check the input signal

4.calibrate input signal zero/fullposition *

5 Operation is difficult inmanual mode

1.valve blocked inside2.lower position limit interior bearingbroken

3.high resistance between trip plateand support pole

1.dismantle the valve fortroubleshooting *

2.replace *3.adjust the clearance between tripplate and support pole m *

6 Motor keeps running afterreaching position limit

1.position limit switch fault2.position limit switch loose orreverse wiring

1.replace2.rewiring *

7 step or creep action 1.poor joggle between

potentiometer’s gear and rack2.potentiometer gear broken3.controller fault

1.readjust

2.replace *3.replace *

8 great deviation between thedisplayed opening on thecontroller and the actualvalve position

1.potentiometer improperly installed2.inaccurate zero/full position3.controller fault4.great deviation of input signal

1.reinstall *2.readjust3.replace *4.check the input signal

9 No feedback signal of valveposition

1.poor wiring or open circuit withfeedback signal cable

2.potentiometer broken

1.rewiring2.replace *

10 Valve incompletely closedand valve plate leakage 1.inaccurate zero position2.sealing ring damaged3.foreign objects with sealing part ofvalve plate

4.potentiometer broken

1.readjust *2.replace3.dismantle the valve to clean *4.replace *

11 Vibration 1.high system resistance or bigpipeline hanging span

2.Coupling’s disc spring out of orderor broken

3.Polit valve plate spring broken

1.reduce resistance or add support2.replace3.replace *

12 Valve cannot be reset after

power off

1.poor wiring with power off reset

device2.Accumulator aging or damaged

1.rewiring *

2.replace *

13 Smoke, smell, andabnormal noise

1.Power supply short circuit2.Motor block

cut off the power for troubleshooting*

Note: please immediately inform BROAD or BROAD authorized service provider of those items with“*”

Faults and Troubleshooting 8



Regular Check and Intervals

NO. Item Key point Interval

1 Zero / Fullposition

Open/close valve tocheck whether the

controller displays0/100

3 months

2 Power offreset device

Whether there is any ：mechanical damageWhether it automaticallyresets after power off

6 months

3 Actuator Whether there is any:loose wiringlimit switch failurecopper gear abrasionabnormal noise with the

motor

6 months

4 Gear Whether there is any:abrasion with the drivescrewloose couplingtrip board blocked

6 months

5 Connectingflange

Whether there is any:loose contactleakage at joints

1 year

6 Bolt & nut If it’s loose or rusty 1 year

Regular Replacement and IntervalNO. Item Interval

1 Heat resistant lubricate grease(MoS2) 1year

2 All sealing elements 2 years

3 Disk spring 3 years

4 Accumulator 5 years

Manual Operation①Dismantle the cover and take out the motor

②Insert the handle into axial hole of thetransmission nut. Turn anticlockwise to openvalve and clockwise to close valve

Spare Parts Replacement

Add heat resistant lubricant grease(The same with manual operation)①Dismantle the cover and take out the motor

②Apply appropriate amount of grease into theaxial hole of transmission nut

Replace sealing ring①Remove lower sealing plate or lowerconnecting pipe

②Loosen the coupling, take out the valve coreand replace the sealing ring(valve platesealing gasket and shaft sealing ring)

Replace disk spring(The same with replacing sealing ring)①Loosen the coupling②Screw off the coupling nut and disk springfixing nut. Replace a new disk spring (3 pieces

overlapped as one set, facing up and downalternatively. 12 pieces to be replaced at atime. New and used ones can not be mixed.)

Notice: Maintenance should be conducted when thevalve is powered off and cooled to ambienttemperature, and when the pipeline ispressure free.

Manual Operation 9

Axis connecting nut

Connecting block



Spare Part List

NO. Parts Qnty(pc)

Remarks

1 Potentiometer 1

2 Limit switch 23 Disk spring 12

4 Bearing 2

5 Handle 1 For manual operation

6 Valve corespring

2 For motor valveonly. N. A. for ≤BVS40 model

7 Valve axialsealing ring

5 For motor valve 7pcs for≤BVS40model

8 Valve platesealing element

2 For motor valve only

9 Pilot valve platesealing ring

2 For motor valveonly. N. A. for ≤BVS40 model

10 Sealing rope 1 Exhaust valve

WarrantyTerm: 2 years from purchaseDescription

·Free maintenance or replacement for faultcaused by product design·Damage caused by the user is to be charged①incorrect operation and using②incorrect installation③man-made damage

Service Tel: +86-731-4611352

Spare Parts and Warranty10



BROAD TOWN, CHANGSHA, CHINA

Zip: 410138

Tel: +86-731-4611352

Fax: +86-731-4611356Service Hotline: +86-731-4611352

www.broad.com

BROAD MOTOR VALVE

STRIVES FOR POPULARIZING ENERGY-SAVING AUTOMATION

broad valve user manual.pdf

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