Burkert 2933 Manuel utilisateur

Operating Instructions

Bedienungsanleitung

Manuel d‘utilisation

Type 2933, 2934, 2935, 2973, 2974, 2975

Manually operated diaphragm valves

We reserve the right to make technical changes without notice.

Technische Änderungen vorbehalten.

Sous réserve de modifications techniques.

Operating Instructions 2304/00_EU-ML_00815442 / Original DE

Table of contents

1 OPERATING INSTRUCTIONS............................................... 4

1.1 Symbols....................................................................... 4

1.2 Denitionofterms ....................................................... 4

2 INTENDED USE .................................................................... 5

3 BASIC SAFETY INSTRUCTIONS.......................................... 5

4 GENERAL NOTES................................................................. 7

4.1 Contact addresses ...................................................... 7

4.2 Warranty ...................................................................... 7

4.3 InformationontheInternet.......................................... 7

5 PRODUCT DESCRIPTION .................................................... 7

5.1 Structure and description............................................ 7

5.2 Variants........................................................................ 7

5.3 Function....................................................................... 8

5.4 Productidentication .................................................. 9

6 TECHNICAL DATA............................................................... 11

6.1 Standards and directives........................................... 11

6.2 Mechanical data ........................................................ 11

6.3 Port connections valve body..................................... 12

6.4 Operating conditions ................................................. 12

6.5 Flow values................................................................ 14

7 INSTALLATION .................................................................... 16

7.1 Informationforthecorrectinstallationposition......... 17

7.2 Preparatory work ....................................................... 18

7.3 Install device.............................................................. 19

7.4 Set stroke limit........................................................... 20

7.5 Lock handwheel ........................................................ 21

8 MAINTENANCE................................................................... 22

8.1 Cleaning .................................................................... 22

8.2 Maintenance work ..................................................... 23

8.3 Replacing the diaphragm .......................................... 23

9 REPLACEMENT PARTS, ACCESSORIES .......................... 25

9.1 Replacement diaphragms ......................................... 26

10 TRANSPORTATION, STORAGE, DISPOSAL ...................... 27

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Operating instructions

1 OPERATING INSTRUCTIONS

Theoperatinginstructionsdescribetheentirelifecycleofthedevice.

Keep these instructions ready to hand at the operating site.

Important safety information.

▶Readtheseinstructionscarefully.

▶Aboveall,observethesafetyinstructions, intendeduseand

operating conditions.

▶Persons who work on the device must read and understand

these instructions.

1.1 Symbols

DANGER

Warning of an immediate danger.

▶Failure to comply will result in death or serious injury.

WARNING

Warns of a potential danger.

▶Failure to observe these warnings may result in serious injuries

or death.

CAUTION

Warns of a potential hazard.

▶Failure to comply with these instructions may result in moderate

or minor injury.

NOTE

Warns of damage.

Important tips and recommendations.

Referstoinformationintheseoperatinginstructionsorin

other documentation.

▶Highlights instructions to avoid a danger.

→Designates a procedure which you must carry out.

1.2 Denition of terms

Term Denition for these instructions

Device Diaphragm valve type 2933, 2934, 2935,

2973, 2974 and 2975

Ex area Potentially explosive atmosphere

Explosion protection

approval

Approval in potentially explosive

atmosphere

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Intended use

2 INTENDED USE

The diaphragm valve type 2933, 2934, 2935, 2973, 2974 and

2975 is designed to control the ow of media. The authorised

media are listed in chapter “Technical data”.

▶Use the device only as intended. Non-intended use of the

device may be dangerous to people, nearby equipment and

the environment.

▶Prerequisites for safe and trouble-free operation are correct

transportation, correct storage, installation, start-up, operation

and maintenance.

▶To use the device, observe the permitted data, operating con-

ditionsandapplicationconditions. Thesespecications can

befoundinthecontractdocuments,theoperatinginstructions

and on the Type label.

▶Use the device only in conjunction with third-party devices and

components recommended or approved by Bürkert.

▶Onlyuseequipmentthatisapprovedforthistypeofpotentially

explosivearea.Thesedevicesareidentiedbyaseparate“Ex”

typelabel.Beforeuse,notetheinformationontheseparateEx

type label and the Ex additional instructions or the separate Ex

operating Instructions.

▶Protectdevicefromenvironmentalinuences(e.g.radiation,

airhumidity,fumes).Ifyouhaveanyquestions,contactyour

Bürkert sales department.

3 BASIC SAFETY INSTRUCTIONS

Thesesafetyinstructionsdonottakeintoaccountanyunforeseen

circumstances or events that occur during installation, operation

and maintenance. The operator is responsible for observing

the location-specic safety regulations, also with reference to

personnel.

Risk of injury due to high pressure and escaping medium.

▶Switchothepressurebeforeworkingonthedeviceorsystem.

Vent or empty the lines.

Electric shock due to installed electrical component.

▶Beforeworkingonthedeviceorsystem,switchothepower

supply. Secure against reactivation.

▶Observe any applicable accident prevention regulations and

safetyregulationsforelectricaldevices.

Danger of bursting in case of overpressure.

Ifthedevicebursts, themediummaycauseinjuries, burnsor

scalds.

▶Do not exceed the maximum medium pressure. Observe spec-

icationsonthetypelabel.

▶Observe allowable temperatures.

Danger of burns and risk of re.

Quicklyswitchingactuatorsorhotmediummaycausethesurface

ofthedevicetobecomehot.

▶Only touch the device when wearing protective gloves.

▶Keepthedeviceawayfromhighlyammablesubstancesand

media.

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Basic safety instructions

Medium may leak out if the diaphragm is worn.

▶Inspectreliefboreforanymediumleakages.

▶Changethediaphragmifmediumleaks.

▶Ifthemediumishazardous,securetheareaaroundtheleakage

to prevent risks.

Danger of crushing due to mechanically moving parts.

Thereisariskofcrushingduetotheupanddownmovement

ofthedevicewhenitisactuated.

▶Donotreachintotheopeningsofthevalvebody.

Danger due to loud noises.

Depending on the operating conditions, the device may generate

loudnoises.Moredetailedinformationonthelikelihoodofloud

noisesisavailablefromtherelevantsalesoce.

▶Wearhearingprotectionwheninthevicinityofthedevice.

To avoid injury, observe the following:

▶Do not make any changes to the device and do not subject it

to mechanical stress.

▶Onlytrainedtechniciansmayperforminstallation andmain-

tenance work.

▶Onlyusesuitabletoolstoperforminstallationandmaintenance

work.

▶Heavy equipment must only be transported, assembled and

disassembledwiththehelpofasecondpersonasappropriate

and using suitable apparatus.

▶Only hand-tighten the valve when closing. Too much tightening

may damage the diaphragm.

▶Theprocessmustberestartedinadenedorcontrolledmanner

afteraninterruptioninthepowersupplyorpneumaticsupply.

▶Thedevicemaybeoperatedonlywheninperfectconditionand

inconsiderationoftheoperatinginstructions.

▶Forapplicationsplanningandoperationofthedevice,observe

theplant-specicsafetyregulations.

▶Only the media listed in chapter “Technicaldata”shouldbefed

into the medium ports.

▶Observethegeneralrulesoftechnicalequipment.

▶Theplantownerisresponsibleforthesafeoperationandhan-

dlingoftheplant.

english

Type 2933, 2934, 2935, 2973,

2974, 2975

General notes

4 GENERAL NOTES

4.1 Contact addresses

Germany

Bürkert Fluid Control Systems

Sales Centre

Christian-Bürkert-Str.13–17

D-74653Ingelngen

Tel.+49(0)7940-1091111

Fax+49(0)7940-1091448

E-mail:[email protected]

International

Thecontactaddressescanbefoundonthebackpagesofthe

printed operating instructions.

They are also available online at: country.burkert.com

4.2 Warranty

Apreconditionforthewarrantyisthatthediaphragmvalveisused

asintendedinconsiderationofthespeciedoperatingconditions.

4.3 Information on the Internet

Operatinginstructionsanddatasheetsfortype2933,2934,

2935,2973,2974,2975canbefoundonlineat:

country.burkert.com

5 PRODUCT DESCRIPTION

5.1 Structure and description

The device is a manually controlled diaphragm valve with diaphragm

seal.Thevalveconsistsofamanualactuatorandavalvebody.

5.2 Variants

Types293xand297xaredierentiatedbytheactuator.

Thexisdierenttothevalvebody.

5.2.1 Type 2933

Handwheel

Diaphragm

Valve body

Attachment with scale

Port connection

Fig. 1: Example of 2/2-way valve, type 2933

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Product description

5.2.2 Type 2934 with T-valve body

Handwheel

Attachment with scale

Diaphragm

T-Valve body

Port connection

Fig. 2: Example of valve with T-valve body, type 2934

5.2.3 Type 2935 with tank bottom body

Handwheel

Attachment with scale

Diaphragm

Tank bottom body

Port connection

Fig. 3: Example of valve with tank bottom body, type 2935

5.2.4 Type 2973, 2974, 2975

Handwheel with lock

(optional)

Valve body

Diaphragm

Attachment with scale

Port connection

Fig. 4: Example of 2/2-way valve, type 2973

5.3 Function

Bymanuallyactivatingthehandwheel,theforceistransmittedviaa

spindle and the valve is opened or closed. The medium in the valve

bodyisreleasedorshuto.Turningthehandwheelanticlockwise

opens the valve, turning it clockwise closes the valve.

5.3.1 Position indicator actuator

5.3.1.1 Actuator DN8

When turning the handwheel anticlockwise, a yellow marking

becomes visible between the attachment and the handwheel.

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Product description

Thevisibilityoftheyellowmarkingisnotdirectlyrelated

totheclosedpositionofthevalve.Dependingonthecon-

structionofthevalve,themarkingmay:

- not be visible when the valve is open, or

- visible when the valve is closed.

5.3.1.2 Actuator DN15 to DN50

Reproducible stroke scale

Handwheel with scale

Fig. 5: Position indicator

When turning the handwheel anticlockwise, a reproducible

stroke scale becomes visible between the attachment and the

handwheel.

Thevisibilityofthestrokescaleisnotdirectlyrelatedto

theclosedpositionofthevalve.Dependingonthecon-

structionofthevalve,thereproduciblestrokescalemay:

- not be visible when the valve is open, or

- visible when the valve is closed.

Thescaleon the handwheel determinesthe rotationposition of

thehandwheel(type293x:30positions,type297x:50positions).

Thereproduciblestrokescale showstherelativepositionofthe

valve and serves as a xed point for determining the rotational

position.

5.4 Product identication

5.4.1 Type label

Typ 2933 DN15 ER

00123456

S/N: 1001 W22MN

Tmed:

-10...+145°C

NO01 NO17

D-74653

Ingelfingen

Fig. 6: Description of the type label (example)

Item Description Item Description

1Manufacturer 5 Medium temperature

2 Type 6 Valvebodysurface

roughness

3 Nominal diameter 7 Serial number

4 Seal material 8 Order number

english

Type 2933, 2934, 2935, 2973,

2974, 2975

Product description

5.4.2 Labelling on forged steel valve body

XXXXXXXXXX

XX F

1.4435/316L(VS)

PN16/CWP150

XXXXXXXX/XXX

XXXXXX

XXXX

Fig. 7: Labelling on forged steel valve body

Item Description Item Description

1 Company logo 5 Production number/

serial number

2 Material 6 Self-drainingangle

3 Nominal pressure

class(PN)

7Customer-specictext

(optional)

4 Batch number 8 Nominal diameter and

pipe dimensions

5.4.3 Labelling on cast valve body

Fig. 8: Labeling on cast valve body

Item Description Item Description

1 Company logo 4 Nominal diameter

(diaphragmsize)

2 Material 5 Batch number

3 Nominal pressure

class(PN)

6 Nominal diameter and

pipe dimensions

english

Type 2933, 2934, 2935, 2973,

2974, 2975

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