Burkert 0262 Manuel utilisateur

Bedienungsanleitung

Manuel d‘utilisation

Operating Instructions

Type 0262, 0263

2/2-way diaphragm control valve

2/2-Wege-Membransteuerventil

Vanne de commande à membrane 2 voies

1 THE OPERATING INSTRUCTIONS

The operating instructions contain important information.

▶Read the instructions carefully and follow the safety instructions

in particular.

▶Keep the instructions and provide them to every user.

▶The liability and warranty do not apply if the procedures in the

operating instructions are not followed.

1.1 Symbols

▶Highlights instructions to avoid a danger.

→Designates a procedure which you must carry out.

Warning of injuries:

Danger!

Immediate danger! Serious or fatal injuries.

Warning!

Possible danger! Serious or fatal injuries.

Caution!

Danger! Moderate or minor injuries.

Warning of damage:

note!

Table of contents

1 The operating instructions.......................................................... 2

2 Intended use.............................................................................. 3

3 Basic safety instructions ............................................................ 4

4 Product description ................................................................... 5

5 Structure and function ............................................................... 5

6 Technical data............................................................................ 7

7 Assembly................................................................................... 9

8 Start-up ................................................................................... 11

9 Removal .................................................................................. 12

10 Spare parts.............................................................................. 12

11 Transportation, storage, disposal ............................................. 14

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2 INTENDED USE

Non-intended use of the diaphragm control valve Type 0262 and

Type 0263 may be dangerous to people, nearby equipment and

the environment.

▶The device is designed for controlling the ow rate of liquid and

gaseous media.

▶In potentially explosive atmospheres, only use devices approved

for use in those areas. These devices are labeled with a separate

Ex type label. For such use, note the information provided on

the separate Ex type label and the additional explosion-related

information or separate explosion-related operating instructions.

▶The device is approved for use in Zone 1 and 21 in accordance

with ATEX directive 2014/34/EU category 2 G/D.

▶Use according to the authorized data, operating conditions, and

conditions of use specied in the contract documents and oper-

ating instructions.

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

components recommended and authorized by Bürkert.

▶Correct transportation, storage and installation as well as care-

ful operation and maintenance are essential for reliable and

fault-free operation.

▶Use the device for its intended purpose only.

2.1 Warranty

The warranty is only valid if the device is used as intended in

accordance with the specied application conditions.

2.2 Information on the Internet

The operating instructions for Type 0262 and 0263 can be found on

the Internet at: www.burkert.com

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3 BASIC SAFETY INSTRUCTIONS

These safety instructions do not consider any contingencies or inci-

dents which occur during installation, operation and maintenance.

The operator is responsible for observing the location-specic safety

regulations, also with reference to the personnel.

Risk of injury due to high pressure.

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

and vent or drain lines.

Risk of injury from electric shock.

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

supply and secure to prevent reactivation.

▶Observe the applicable accident prevention and safety regula-

tions for electrical equipment.

Risk of burns during continuous operation due to hot device

surface.

▶Keep device away from highly ammable substances and

media and do not touch with bare hands.

General hazardous situations.

To prevent injuries:

▶Operate the device only in perfect state and in consideration of

the operating instructions.

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

mechanical stress.

▶Secure device or system to prevent unintentional activation.

▶Only trained technicians may perform installation and mainte-

nance work.

▶Install the device according to the regulations applicable in the

country.

▶After an interruption in the power supply, ensure that the pro-

cess is restarted in a controlled manner.

▶Observe the general rules of technology.

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4 PRODUCT DESCRIPTION

4.1 General description

The externally controlled valve Type 0262 and 0263 is pneumatically

actuated.

It uses neutral gases or air (control media) to control the ow rate of

media, e.g. water, alcohol, oil, fuel, hydraulic uid, saline solution,

lye, organic solvent and steam.

4.2 Properties

•Glandless, double spindle seal,

•Actuator housing made of acid and lye-resistant plastic,

•High ow values through the stream-lined valve body,

•Type 0263 has a hermetically sealing diaphragm between the

valve body and actuator.

4.3 Device versions

A variant for steam application with PTFE seal is available for Type

0262.

5 STRUCTURE AND FUNCTION

5.1 Structure

The valve consists of a membrane actuator and a 2-way valve

body.

Control diaphragm

Spring plate

Lip seal

O-ring

Seal

Body

Fig. 1: Structure of Type 0262

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In Type 0263 the actuator is hermetically sealed from the medium

by a diaphragm.

Control diaphragm

Spring plate

Lip seal

Diaphragm

Body

Fig. 2: Structure of Type 0263

5.2 Function

Spring force (CFA) or pneumatic control pressure (CFB and CFI)

generates the closing force on the seat seal or diaphragm. The

force is transferred via a spindle which is connected to the control

diaphragm.

5.2.1 Control function

Control function (CF)

CFA

Closed by spring force in rest

position

CFB

Opened by spring force in rest

position

CFI

Actuating function via reciprocal

pressurization

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5.2.2 Incoming ow under seat

The valve is closed against the medium ow by spring force

(control function A, CFA) or by control pressure (control function B,

CFB). As the medium pressure is under the seat seal, this pressure

contributes to opening of the valve.

note!

Seat seal or diaphragm subject to wear.

When the incoming ow is over the seat, powerful water

hammers may occur, especially in the case of liquid media.

▶Do not use device for incoming ow over the seat.

▶Observe arrow for direction of ow on the valve body.

6 TECHNICAL DATA

6.1 Conformity

The device conforms to the EU directives as per the EU Declaration

of Conformity (if applicable).

6.2 Standards

The applied standards, which are used to demonstrate conformity

with the directives, are listed in the EU type examination certicate

and/or the EU Declaration of Conformity (if applicable).

6.3 Type label

Type

Control function

Orice Seal material

Body material

Order number

Control pressure

Connection type, operating

pressure

0262 A 25,0 FKM MS

Made in Germany

0028410

W12MN

Pilot 3-6 bar

G1 P

N 0 -1 bar

english

6.4 Operating conditions

6.4.1 Temperature ranges

Type Seal material Medium tem-

perature [°C]

Ambient tem-

perature [°C]

0262 NBR -10...+90 -10...+90

FKM -10...+100

EPDM -10...+100

PTFE/EPDM -10...+140

PTFE/FKM -10...+140

0263 NBR -10...+90 -10...+90

FKM -10...+100

EPDM -10...+100

If a pilot valve is used, the maximum ambient temperature is

+55 °C.

Temperature of the control medium max. +90 °C

6.4.2 Pressure ranges

Type Orice Medium pressure for circuit

function [bar]

Max.

control

pressure

[bar]

A normal

spring

A rein-

forced

spring

normal

spring

0262 10 0...5 0...10 0...10 6

12 0...3.5 0...6 0...10 6

20 0...1.5 0...1.5 6

25 0...1 0...1 6

0263 10 0...2.5 0...5 0...10 6

12 0...2 0...4.5 0...10 6

Observe minimum control pressure according to the speci-

cations on the type label.

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6.4.3 Permitted media

Seal material Permitted media

NBR Neutral media, e.g. compressed air, town

gas, water, hydraulic oil

FKM Per solutions, oxygen, hot air

EPDM Oil and grease-free media, e.g. hot water,

alkaline washing and bleaching lyes

PTFE/EPDM Oil and grease-free media, e.g. hot water

and steam

PTFE/FKM Hot oil, hydrocarbons, aromatic compounds

and steam

Control medium neutral gases and liquids, in particular air,

water, hydraulic uids up to max. +90 °C

7 ASSEMBLY

Danger!

Risk of injury from high pressure and discharge of medium.

▶Before working on the device or system, switch o the pressure.

Vent or drain lines.

Risk of injury from electric shock.

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

supply. Secure against reactivation.

▶Observe applicable accident prevention and safety regulations

for electrical equipment.

Warning!

Risk of injury due to incorrect assembly.

▶Assembly may be carried out only by trained technicians and

with the appropriate tools.

▶Secure system against unintentional activation.

▶Following assembly, ensure a controlled restart.

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7.1 Before installation

Installation position: optional, preferably with actuator face up.

→Remove contaminants from pipelines.

→Ensure that the pipelines are aligned.

→Observe ow direction.

7.2 Installation

→Connect valve body to pipeline.

Ensure that the valve body is installed torsionally rigid.

Warning!

Danger if incorrect lubricants used.

Unsuitable lubricant may contaminate the medium. In oxygen

applications there is a risk of an explosion.

▶Only use approved lubricants for specic applications, such as

oxygen or analytical applications.

7.3 Pneumatic connection

Warning!

Risk of injury due to unsuitable hoses.

▶Use only hoses which can withstand the pressure and tempera-

ture of the medium.

▶Observe technical data of the hose manufacturer.

For control function I: Danger due to the control pressure failing.

If the control pressure fails, the valve remains in an undened position.

▶For a controlled restart, pressurize the device with control pres-

sure and then connect the medium.

7.3.1 Connection of the control medium

Control function A:

→Connect control medium to lower connection of the actuator.

Control function B:

→Connect control medium to upper connection of the actuator.

Control function I:

→Connect control medium to upper and lower connections of the

actuator. Pressure on the lower connection opens the valve.

Pressure on the upper connection closes the valve.

english

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