Alfalaval SB User manual

ESE02961-EN4 2022-01

Original manual

Instruction Manual

Alfa Laval SB Pressure Relief Valve

Table of contents

The information herein is correct at the time of issue but may be subject to change without prior notice

1. EC Declaration of Conformity ....................................................................... 4

2. Safety .................................................................................................... 5

2.1. Important information ............................................................................. 5

2.2. Warning signs ..................................................................................... 5

2.3. Safety precautions ................................................................................ 6

3. Installation .............................................................................................. 7

3.1. Unpacking/delivery ............................................................................... 7

3.2. General installation ................................................................................ 7

3.3. Valve assembly .................................................................................... 8

3.4. Welding procedures for welding flange ......................................................... 9

3.5. Installation of valve and accessories ............................................................ 11

3.6. Recycling information ............................................................................. 12

4. Operation ............................................................................................... 13

4.1. Operation .......................................................................................... 13

4.2. Discharge capacity ............................................................................... 14

4.3. Recommended cleaning ......................................................................... 15

5. Maintenance ........................................................................................... 16

5.1. General maintenance ............................................................................. 16

6. Technical Data ......................................................................................... 17

6.1. Technical data ..................................................................................... 17

7. Parts List and Service Kits .......................................................................... 20

7.1. Pressure Relief Valve ............................................................................. 20

7.2. Force Opener ..................................................................................... 22

1 EC Declaration of Conformity

Revision of Declaration of Conformity: 2020-02-10

The Designated Company

Alfa Laval Kolding A/S

Company Name

Albuen 31, DK-6000 Kolding, Denmark

Address

+4579322200

Phone No.

hereby declares that

Valve

Designation

SB Pressure Relief Valve

Type

Serial number from AAB000000001 to AAB999999999

Serial number from 100700000001 to 100799999999

is in conformity with the following directives with amendments:

- Machinery Directive 2006/42/EC

- Pressure Equipment Directive 2014/68/EU of the European Community, Category IV

- Pressure Equipment Directive 2014/68/EU of the European Community, Fluida Group II

- EN 4126-1

Conformity Assessment According to Directive 2014/68/EU Annex III Module D

PED Quality Certificate No. QS-005-19 rev2

Notified Body Number: 1336

Inspecta Estonia OÜ

Teaduspargi 8

12618 Tallinn

ESTONIA

The person authorised to compile the technical file is the signer of this document

Global Product Quality Manager

Pumps, Valves, Fittings and Tank Equipment Lars Kruse Andersen

Title Name

Kolding 2022-01-01

Place Date Signature

2 Safety

Unsafe practices and other important information are emphasised in this manual.

Warnings are emphasised by means of special symbols.

2.1 Important information

Always read the manual before using the valve!

WARNING

Indicates that special procedures must be followed to avoid serious personal injury.

CAUTION

Indicates that special procedures must be followed to avoid damage to the valve.

NOTE

Indicates important information to simplify or clarify procedures.

2.2 Warning signs

General warning:

Caustic agents:

2Safety

All warnings in the manual are summarised on this page.

Pay special attention to the instructions below to avoid serious personal injury and damage to the valve.

2.3 Safety precautions

Installation:

Always read the technical data thoroughly (see chapter 6 Technical Data.) !

Never touch the moving parts if the actuator for force opening is supplied with compressed air.

Never dismantle the valve or actuator for force opening when under pressure.

Never dismantle the valve when it is hot.

Operation:

Never dismantle the valve or actuator for force opening when under pressure. !

Never dismantlethevalvewhenitishot.

Always read the technical data thoroughly (see chapter 6 Technical Data)

Never touch the moving parts or actuator for force opening when supplied with compressed air.

Never cover or in any way restrict the valve, must be able to work unobstructed at all time.

Always handle lye and acid with great care.

Maintenance:

Always read the technical data thoroughly (see chapter 6 Technical Data) !

Never service the valve when it is hot.

Never service the valve or actuator when under pressure.

Never put your fingers between the valve and actuator for force opening.

Never touch the moving parts if the actuator for force opening is supplied with compressed air.

Transportation:

Always ensure that all bolt connections are disconnected before attempting to remove the valve from the installation.

Always drain liquid out of valves before transportation.

Always ensure sufficient fixing of the valve during transportation.

3 Installation

The instruction manual is part of delivery. Study the instructions carefully.

The items refer to the Parts List and Service Kits section.

3.1 Unpacking/delivery

Step 1

CAUTION

Alfa Laval cannot be held responsible for incorrect unpacking.

Check the delivery for:

1. Valve seat and disc

2. Lever and weight

3. Bearing pins, washers and locking rings

4. Flange gasket (placed in valve seat)

5. Actuator for force opening (option)

6. Splash guard (option)

7. Proximity sensor (option)

Step 2

Remove any packing materials from the valve/valve parts.

Inspect the valve/valve parts for visible transport damage.

Avoid damaging the valve/valve parts.

3.2 General installation

Step 1

Always read the technical data thoroughly.

See chapter 6 Technical Data

Always release compressed air from the actuator for force opening after use.

CAUTION

Alfa Laval cannot be held responsible for incorrect installation.

3 Installation

The lever and weight are to be assembled with valve seat and disc.

Make sure the serial number engraved on the disc matches the serial number engraved on the lever.

3.3 Valve assembly

Pos. 1. Valve seat and disc

Pos. 2. Lever and weight

Pos 3. Serial number

3 Installation

The lever and weight are to be assembled with valve seat and disc.

Make sure the serial number engraved on the disc matches the serial number engraved on the lever.

3.4 Welding procedures for welding flange

Step 1

Spot weld from outside

Step 2

Weld the following sections first from the outside then from the

inside, and cool with air between each section.

Spot weld from inside

3 Installation

The lever and weight are to be assembled with valve seat and disc.

Make sure the serial number engraved on the disc matches the serial number engraved on the lever.

Step 3

- Ensure that the surface flatness tolerance equals ±0.2.

- Grind and polish the welding flange.

The valve should be seated horizontally. An inclination of max. 10°

is acceptable but the lever must then point upwards.

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