Contents 1 Declarations of Conformity .................5 EU Declaration of Conformity..................5 UK Declaration of Conformity..................6 2 Safety ..........................7 Safety Signs......................8 Safety Precautions....................10 Warning Signs in Text....................15 Requirements of Personnel..................16 Recycling Information....................17 3 Introduction .........................19 General Description....................19 4 Installation ........................
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Ordering Spare Parts....................47 Alfa Laval Service....................47 Warranty - Definition....................48 9 Parts Lists and Exploded Views ..............49 Standard........................49 Standard with Inductive Sensor................50 Pneumatic Lifting with Inductive Sensor..............51 Manual Lifting......................52...
1 Declarations of Conformity 1.1 EU Declaration of Conformity The designated company Alfa Laval Kolding A/S, Albuen 31, DK-6000 Kolding, Denmark, +45 79 32 22 00 Company name, address and phone number Hereby declare that Safety Valve Designation 6357 Type...
1 Declarations of Conformity 1.2 UK Declaration of Conformity The designated company Alfa Laval Kolding A/S, Albuen 31, DK-6000 Kolding, Denmark, +45 79 32 22 00 Company name, address and phone number Hereby declare that Safety Valve Designation 6357 Type...
Instruction Manual without prior notice or any obligation. The English version of the Instruction Manual is the original manual. Alfa Laval cannot be held responsible for incorrect translations. In case of doubt, the English version applies.
2 Safety 2.1 Safety Signs Mandatory Action Signs General mandatory action sign. Refer to instruction manual. Use eye protection - safety glasses. Use protective hand wear - safety gloves. Wear protective equipment - safety helmet. Use ear protection in noisy environments - noise protector. Wear protective equipment - safety shoes.
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Safety 2 Crushing of hands. Danger of injury Do not attempt to disassemble the actuator due to spring under load danger! DO NOT DISASSEMBLE 200007932-2-EN-GB...
Always ensure that compressed air is released. Always use designated lifting points if defined. Ensure that the lifting equipment is suitable for the supplied Alfa Laval product. Always ensure that the unit is securely fixed during transporta- tion. Always ensure the lifting point to be in line with center of gravity.
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Safety 2 Installation If the local safety regulations prescribe that the installation has to be inspected and approved by responsible authorities before the valve is put into service, consult with such authorities before in- stalling the equipment and have the projected installation ap- proved by them.
2 Safety Maintenance In order to optimise the operation of the supplied Alfa Laval prod- uct and to minimize the down time due repair activities, the main- tenance includes: • Inspection and maintenance of the supplied Alfa Laval prod- uct: strictly follow the technical documentation •...
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Safety 2 Hazards Burn Hazard • Lubrication oil, machine parts and various machine surfaces can be hot and cause burns. Wear protective gloves Corrosive Hazard • Always handle cleaning liquids, lye and acid with great care and in accordance with separate instructions for those fluids •...
Safety check A visual inspection of any protective device (shield, guard, cover or other) on the supplied Alfa Laval product shall be carried out at least every 12 months. If the protective device is lost or damaged, especially when this leads to deterioration of safety performance, it shall be replaced.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate damage to the supplied Alfa Laval product. NOTE Indicates important information to simplify or clarify procedures. 200007932-2-EN-GB...
Trainees can perform tasks under the supervision of an experienced employee. People in general The public shall not have access to the supplied Alfa Laval product. In some cases, specially skilled personnel may need to be hired (i.e. electricians, welders). In some cases the personnel has to be certified according to local regulations with experience of similar types of work.
Metal straps should be sent for material recycling Maintenance During maintenance, oil (if used) and wear parts in the supplied Alfa Laval product should be replaced. • Oil and all non-metal wear parts must be disposed of in accordance with local regulations •...
3.1 General Description The Alfa Laval Safety Valve is a spring loaded safety valve used to prevent overpressures in tanks and vessels in the dairy, food and beverage, and biopharm industries to reliably avoid damages to human beings and equipment.
4 Installation 4.1 Unpacking/delivery CAUTION Alfa Laval cannot be held responsible for incorrect unpacking. Check the delivery: 1. Complete valve. 2. Delivery note. a) Clean the valve of possible packing materials. b) Inspect the valve for visible transport damage. c) Avoid damaging air and pipe connections.
Always read the technical data thoroughly. See Technical Data on page 39 CAUTION Alfa Laval cannot be held responsible for incorrect installation. WARNING Always release compressed air after use. Avoid stressing the valve as this can cause deformation of the sealing area and malfunction of the valve (leakage or faulty indication).
Installation 4 4.3 Indication and control equipment (optional extras) CAUTION The indication and control equipment must be electrically installed by authorised personnel only. Inductive proximity switches It is recommended to adjust the sensor (A) so it will give feedback when the valve is closed. Lock the sensor with the nut (B).
NOTE Always read the technical data thoroughly. (See Technical Data on page 39) CAUTION Alfa Laval cannot be held responsible for incorrect operation. WARNING Never touch the valve or the pipelines when processing hot liquids or when sterilising. DANGER Burn hazard!
5 Operation 5.2 Fault-finding NOTE Study the maintenance instructions carefully before replacing worn parts - see General maintenance on page 29. Pay attention to possible break-down. Study the instructions carefully. Problem Cause/result Repair Internal leakage Worn O-rings Replace the O-rings Worn flange O-rings External leakage Replace all seals...
Operation 5 5.3 Recommended Cleaning NOTE The supplied product is designed for cleaning in place (CIP). NaOH = Caustic soda. = Nitric acid. The cleaning agents must be stored/disposed of in accordance with current regulations/directives. CAUTION Never touch the supplied product or the pipelines when sterilizing. Always handle lye and acid with great care.
5 Operation 5.3.1 Optimum cleaning during the cleaning cycle To secure optimum cleaning of the cavity between valve during the cleaning cycle, please follow the recommendations below. Standard version: It is not possible to clean the valve inside the valve cavity. Pneumatic version: Supply air to the air connection when cleaning the valve.
6 Maintenance 6.1 General maintenance NOTE Always read the technical data thoroughly. See Technical Data on page 39 All scrap must be stored/discharged in accordance with current rules/directives. WARNING Always release compressed air after use. Never service the valve when it is hot. Never stick your fingers through the valve ports if the actuator is supplied with compressed air.
6 Maintenance DANGER Cutting hazard! Atmospheric pressure required! The valve/actuator and the pipelines must never be pressurised when servicing the valve/actuator. Never stick your fingers through the valve ports if the actuator is supplied with compressed air. 2001-0005 The maintenance intervals depend on the operating conditions. •...
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Maintenance 6 Product wetted seals Preventive maintenance Replace after 12 months Maintenance after leakage Replace at the end of the day (leakage normally starts slowly) • Regular inspection for leakage and smooth operation • Keep a record of the valve Planned maintenance •...
6 Maintenance 6.2 Disassembly and assembly NOTE Study the instructions carefully. The items refer to the Parts Lists and Exploded Views on page 49. 6.2.1 DN25 - Replacement of product wetted seals a) Remove electrical lines, sensor mounting and control air! b) Unscrew the electrical lines (P) from sensor (32).
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Maintenance 6 a) Unscrew the slotted nut (30) from the housing (1) with a hook wrench (M4). b) Dismantle the complete valve insert from the housing (1). 2001-0008 Unscrew the housing (1) from the screw in socket (2) and remove the O-ring (21). 2001-0009 200007932-2-EN-GB...
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6 Maintenance a) Unscrew the piston plate (4) from the piston (5). b) Remove O-ring (20). 2001-0010 a) Remove the piston (5) and piston rod (9) axially out of the housing (11). b) Remove O-ring (22). 2001-0011 Puncture the shaft sealing (23) at the centre with a pointed tool (M3) and remove it from the groove.
Maintenance 6 6.2.2 DN40–100 - Replacement of product wetted seals a) Remove electrical lines, sensor mounting and control air. b) Unscrew the electrical liner (P) from sensor (32). c) Unscrew the screw (35) and remove bracket (34). 2001-0013 Without removing the sealing (28) and changing the set pressure the following seals are replaced.
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6 Maintenance a) Unscrew the clamp coupling (31). b) Dismantle the complete valve insert from the housing (1). 2001-0015 Unscrew housing (1) from the screw-in socket (2) and remove the O-rings (21). 2001-0016 200007932-2-EN-GB...
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Maintenance 6 a) Unscrew the piston plate (4) from the piston (5). b) Remove O-ring (20). a) Unscrew the piston plate (5) from the piston rod (9). b) Remove the piston (5) and piston rod (9) axially out of the housing (11). c) Remove O-ring (22).
6 Maintenance 6.2.3 Disassembly - Manual lifting only a) Dismantle the circlip (43.2) and remove the pin (43.1) from the lever (43). b) Pull off the lever (43) from the rod (39) and remove the disc (42). c) Unscrew the hood (25). d) Remove O-ring (24), pressure spring (40) and spring guide (19).
7 Technical Data NOTE Technical data must be observed during installation, operation and maintenance. All personnel should be informed about the technical data. 7.1 Technical Data Temperature Temperature range: +4 °C to +95 °C Valve Size DN25-DN100 Connection option Flange or clamp Temperature ambient +4 °C to +45 °C Max.
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7 Technical Data 2001-0037 2001-0038 2001-0039 2001-0040 Standard with inductive Pneumatic lifting with in- Standard sensor ductive sensor Manual lifting 200007932-2-EN-GB...
Alfa Laval representative for availability. You can find our spare part catalogue at https://hygienicfluidhandling-catalogue.alfalaval.com. Always use Alfa Laval genuine spare parts. The warranty of Alfa Laval products is dependent on use of Alfa Laval genuine spare parts. 8.1 Ordering Spare Parts When ordering spare parts, please always state: 1.
8.3 Warranty - Definition WARNING The rules of Intended use are absolute. Use of the supplied Alfa Laval product is allowed only when in compliance with the technical data supplied with the Intended use. Differing utilisation, other than agreed with Alfa Laval Kolding A/S, exclude any liability and warranty.
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