Alfa Laval SB Instruction Manual
Pressure relief valve
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Summary of Contents for Alfa Laval SB
- Page 1 Instruction Manual Alfa Laval SB Pressure Relief Valve ESE02961-EN4 2022-01 Original manual...
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Page 3: Table Of Contents
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 ............... 2. Safety ....................2.1. Important information ................2.2. Warning signs ..................2.3. Safety precautions ................3. -
Page 4: Ec Declaration Of Conformity
+45 79 32 22 00 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... -
Page 5: Safety
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. -
Page 6: Safety Precautions
2 Safety 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. -
Page 7: Installation
Check the delivery for: CAUTION 1. Valve seat and disc 2. Lever and weight Alfa Laval cannot be held responsible for incorrect unpacking. 3. Bearing pins, washers and locking rings 4. Flange gasket (placed in valve seat) 5. Actuator for force opening (option) 6. -
Page 8: Valve Assembly
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. -
Page 9: Welding Procedures For Welding Flange
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... - Page 10 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.
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Page 11: Installation Of Valve And Accessories
3 Installation The valve is to be fitted with M16 bolts. The options Splash guard and Force opener are also to be fitted with M16 bolts The Proximity sensor is to be fitted by the valve’s M6 screws. 3.5 Installation of valve and accessories Options 1. -
Page 12: Recycling Information
- At the end of use, the equipment should be recycled according to relevant local regulations. As well as the equipment itself, any hazardous residues from the process liquid must be considered and dealt with in a proper manner. When in doubt, or in the absence of local regulations, please contact your local Alfa Laval sales company. -
Page 13: Operation
Reset pressure = Set pressure x 0.9 Set pressure > 1.0 bar (14.5 psi) Reset pressure = Set pressure - 0.15 bar (2.17 psi) Set pressure < 1.0 bar (14.5 psi) Alfa Laval recommends an operating pressure of min. 10% lower than the set pressure value. -
Page 14: Discharge Capacity
4 Operation The valve is delivered with counterweight locked by welding to an individual opening pressure to suit the tank design data. 4.2 Discharge capacity In accordance with EN 4126-1 ΔP=10% Set pressure ≥ 1 bar (14.5 psi) Capacity measured at: ΔP=0.1 x Set pressure <... -
Page 15: Recommended Cleaning
4 Operation The valve is delivered with counterweight locked by welding to an individual opening pressure to suit the tank design data. 4.3 Recommended cleaning Always handle lye and acid with great care. Caustic hazard! Always use Always use rubber gloves! protective goggles! It is important that the valve seat is kept clean. -
Page 16: Maintenance
To ensure the valve operates correctly, test of function at regular intervals is required. Intervals are dependent on operation conditions and should be specified by the user or local regulations. Alfa Laval recommend intervals of once every 6-12 months. O-ring and flange gasket replacement every 2-5 years. -
Page 17: Technical Data
6 Technical Data It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. 6.1 Technical data The Pressure Relief Valve is used to minimise the risk of damage to tanks due to liquid overfilling. The Pressure Relief Valve is delivered with counterweight set and locked to suit customer requirements regarding opening pressure. - Page 18 6 Technical Data It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. Weight Set pressure range Weight Nominal size 0.2 -0.3 bar (2.9-4.35 psi) 10.8 kg 0.4 bar (5.8 psi) 12.8 kg 0.5 -0.6 bar (7.3-8.7 psi) 14.8 kg...
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Page 20: Parts List And Service Kits
7 Parts List and Service Kits It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. 7.1 Pressure Relief Valve... - Page 21 7 Parts List and Service Kits It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. Parts list Pos. Denomination O-ring, EPDM Gasket, EPDM Screw P.R.V. guide stop Ø150/6” ...
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Page 22: Force Opener
7 Parts List and Service Kits It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. 7.2 Force Opener... - Page 23 7 Parts List and Service Kits It is important to observe the technical data during installation, operation and maintenance. All personnel should be informed about the technical data. Parts list Pos. Denomination Air fitting O-ring, NBR Spring Force opener cover ...
- Page 24 © Alfa Laval Corporate AB This document and its contents is owned by Alfa Laval Corporate AB and protected by laws governing intellectual property and thereto related rights. It is the responsibility of the user of this document to comply with all applicable intellectual property laws. Without limiting any rights related to this document, no part of this document may be copied, reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the expressed permission of Alfa Laval Corporate AB.
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