Alfalaval SRC Manuale utente
IM70007-GB12 2002-03
SRC Sanitary Remote-Controlled Valve
Instruction Manual
Name Title
Company Signature
Alfa Laval
6000 Kolding
+45 79 32 22 00
Company Name
Address
Phone No.
hereby declare that
Denomination Type Year
Declaration of Conformity
The designating company
Designation
Was manufactured in conformity with the provisions in the COUNCIL DIRECTIVE of 4 June
989 on mutual approximation of the laws of the Member States on the safety of machines (89/
392/EEC as amended by directives 9 /368/EEC and 93/44/EEC) with special reference to Annex
of the directive on essential safety and health requirements in relation to the construction
and manufacture of machines.
Bjarne Søndergaard Vice Pre ident, R & D
Alfa Laval
SANITARY REMOTE-CONTROLLED VALVE SRC
1
Safety
Installation
Operation
Maintenance
Technical data
Drawings/Parts list
This manual is divided into main sections. - See
below.
Table of contents
1. Important information .................................. 2
2. Warning signs ............................................. 2
3. Safety precautions ....................................... 3
1. Unpacking/Delivery ...................................... 4
2. Recommen e auxiliary equipment
(DN125-150)................................................ 5
3. General installation ...................................... 6
4. Wel ing ....................................................... 7
5. Fitting of oil amper (optional extra) ............ 8
6. Fitting of in ication equipment
(optional extra) ............................................ 9
7. A justment of in ication equipment
(optional extra)........................................... 11
1. Operation ................................................... 12
2. Fault fin ing ............................................... 13
3. Recommen e cleaning ............................ 14
1. General maintenance ................................ 15
2. Dismantling of valve .................................. 17
3. Assembly of valve ...................................... 18
4. Dismantling of actuator .............................. 19
5. Assembly of actuator ................................. 20
1. Technical ata ........................................... 21
1. Parts lists
- SRC...................................... 22+24+26+28
- SRC DN125-150 .................. 30+32+34+36
- Oil amper ........................................ 38+40
- In ication units ....................................... 42
2. Explo e rawings
- SRC.................................................. 23+27
- SRC DN125-150 .............................. 31+35
- Oil amper .............................................. 39
- In ication units ....................................... 43
3. Drawings
- SRC.................................................. 25+29
- SRC DN125-150 .............................. 33+37
- Oil amper .............................................. 41
2
:
:
Safety
Unsafe practices and other important information are
emphasized in this manual.
Warnings are emphasized by means of special signs.
1. I portant infor ation
Always read the manual before using the valve!
In icates that special proce ures must be
followe to avoi severe personal injury.
In icates that special proce ures must be
followe to avoi amage to the valve.
In icates important information to simplify
practices or to make them clearer.
WARNING! :
CAUTI N! :
N TE! :
2. Warning signs
General warning.
Caustic agents.
3
Installation:
:
:
:
:
peration:
:
:
:
:
Maintenance:
:
:
:
:
3. Safety precautions
-Always rea the technical ata thoroughly
(see page 21).
-Always release compresse air after use.
Never touch the clip assembly or the actuator
piston ro if the actuator is supplie with
compresse air.
Never touch the valve or the pipelines when
processing hot liqui s or when sterilizing.
-Never ismantle the valve with valve an
pipelines un er pressure.
-Never ismantle the valve when it is hot.
-Always rea the technical ata thoroughly
(see page 21).
-Always release compresse air after use.
Never touch the valve or the pipelines when
processing hot liqui s or when sterilizing.
Never touch the clip assembly or the actuator
piston ro if the actuator is supplie with
compresse air.
Always han le lye an aci with great care.
-Always rea the technical ata thoroughly
(see page 21).
-Always release compresse air after use.
-Never service the valve when it is hot.
-Never service the valve with valve an
pipelines un er pressure.
Never stick your fingers through the valve ports if
the actuator is supplie with compresse air.
Never touch the clip assembly or the actuator
piston ro if the actuator is supplie with
compresse air.
All warnings in the manual are summarized on this
page.
Pay special attention to the instructions below so that
severe personal in ury and/or damage to the valve are
avoided.
Safety
4
4
2
6
1
5
Installation
The instruction manual is part of the delivery.
Study the instructions carefully.
The items refer to the drawings and the parts list on the
pages 22-37.
The valve is supplied as separate parts as standard (for
welding).
The valve is assembled before delivery, if it is supplied
with fittings.
3
Change-over valve:
1. Complete actuator with bonnet (8).
2. Clip assembly (11).
3. Lip seal (14).
4. Two clamps (15).
5. Valve plug (20).
6. Two valve bo ies (16, 18).
7. Valve bo y seal ring (17).
Remove possible packing materials from the valve/
valve parts.
Inspect the valve/valve parts for visible transport
amages.
Remove
packing
materials!
Avoi amaging the valve/valve parts.
Inspection! Caution!
1. Unpacking/Delivery
CAUTION!
Alfa Laval cannot be hel responsible for incorrect
unpacking.
Check the elivery for:
1. Complete valve, stop valve or change-over
valve (see 2 an 3).
2. Delivery note.
3. Instruction Manual.
Please note that the esign of sizes DN125-150
iffers from that of sizes 25-101.6 mm/DN25-100.
The ifferences can be seen on pages 22-29 an
30-37.
The rawings in this manual show sizes 25-101.6
mm/DN25-100
Stop valve:
1. Complete actuator with bonnet (8).
2. Clip assembly (11).
3. Lip seal (14).
4. Clamp (15).
5. Valve plug (19).
6. Valve bo y (16).
5
1. Place the valve in the trestle.
2. Make sure that the actuator rests on the
rubber linings on the trestle support plates.
3. Dismantle/reassemble the valve.
Trestle
50
50
Si e view
250
250
Top view
R 99.5
R 101.5
En view
10
Installation
The valve sizes DN125-150 are very heavy.
Therefore Alfa Laval recommends manufacturing and
usage of auxiliary equipment. A proposal is given below.
2. Reco ended auxiliary equip ent (DN125/150)
Please note that the auxiliary equipment cannot be
supplied by Alfa Laval.
The item refers to the drawings and parts list on pages
30-37.
1
12
43
5 6
6
For lifting the valve:
Screw an eye bolt (6 mm) into top pin (23).
Using a small hook crane or similar, lift the valve
by the eye bolt.
Trestle:
- The purpose of the trestle is to support the valve
uring ismantling an reassembly.
- The trestle is ma e of a base plate, two support
plates, two rubber linings an four bolts.
- The rubber linings are attache to the support
plates so that the valve/actuator will rest on
these.
- To prevent the valve from turning uring
ismantling an reassembly the trestle must be
ma e with the correct measurements (see 3, 4
an 5). All measurements are in mm.
6
Avoi stressing the valve.
Pay special attention to:
- Vibrations.
- Thermal expansion of the tubes.
- Excessive wel ing.
- Overloa ing of the pipelines.
-Always rea the technical ata thoroughly
(see page 21).
-Always release compresse air after use.
CAUTION!
Alfa Laval cannot be hel responsible for incorrect
installation.
1
3
5
4
2
6
Study the instructions carefully and pay special
attention to the warnings!
The valve has welding ends as standard but can also be
supplied with fittings.
NO = Normally open.
NC = Normally closed.
A/A = Air/air activated.
2. General installation
Never touch the clip assembly or the
actuator piston ro if the actuator is supplie
with compresse air.
Fittings:
Ensure that the connections are tight.
Moving parts!
Risk of
amage!
Air
Remember seal
rings!
Air
NO NC A/A
It is recommen e to install the valve so that:
- The actuator is not turne ownwar s as the
valve will then not be raine .
- The flow is against the closing irection
to avoi water hammer.
Inlet
Avoi water
hammer!
Stop valve
Inlet
Change-over valve
Installation
Air
R1/8" (BSP)
Air Air
Inlet
Air
Air connection:
7
Valve size A (mm) B1 (mm) B2 (mm)
DN25/25 mm 200 537 647
DN40/38 mm 230 550 730
DN50/51 mm 290 550 730
DN65/63.5 mm 350 550 730
DN80/76 mm 390 600 780
DN100/101.6 mm 490 650 830
DN125 580 730 920
DN150 640 730 920
1
2
4
3
Study the instructions carefully.
The valve is supplied as separate parts to facilitate the
welding.
The items refer to the drawings and the parts list on the
pages 22-37.
Check the valve for smooth operation after welding.
3. Welding
Always wel the valve so that the valve bo y seal
ring can be replace (change-over valve).
Maintain the minimum clearances (A an B) so that
the lower valve bo y an plug (change-over valve)
an the actuator with the internal parts can be
remove .
Stop valve:
Assemble the valve in accor ance with the
instructions 2-5 on page 18.
Pay special attention to the warnings!
Change-over valve:
Assemble the valve in accor ance with the instruc-
tions 2-6 on page 18.
Pay special attention to the warnings!
Pre-use check:
1. Supply compresse air to the actuator.
2. Open an close the valve several times to
ensure that it operates smoothly.
Pay special attention to the warnings!
Change-over valve
(upper valve bo y)
Stop valve
B1
B2 (incl. top unit)
Fit seal ring (17)
correctly!
Remember
seal rings!
Air
Open/close!
Installation
B1
B2 (incl.
top unit)
A
5
SRC 25 mm stop valve
The 25 mm actuator is only for use on the SRC 25
mm stop valve.
Warning: When changing from NC to NO please
note that the actuator is spring-loa e . For safety,
place a "Spring-loa e " warning label (or ere
from Technical Support at Alfa Laval) on the valve.
Air (NO/AA)
Air (NC/AA)
8
12
56
34
The valve can be fitted with an oil damper if water
hammer occurs when the valve closes in the flow
direction.
The items refer to the drawings and the parts list on
pages 38-41.
Study the instructions carefully and pay special
attention to the warnings!
NC = normally closed.
A/A = air/air activated.
4. Fitting of oil da per, 25-101.6 /DN25-100, optional extra
Fill further oil through the plug hole if large air
bubbles occur un er the plexiglas cover.
NOTE!
There shoul be a small air bubble which equalizes
changes in the pressure because of temperature
changes.
Removal/ ismantling:
Remove the amper by following the instructions in
reverse or er.
Pre-use check:
1. Supply compresse air to the actuator.
2. Open an close the valve several times to
ensure that it operates smoothly.
Pay special attention to the warnings!
Never touch the valve or the pipelines when
processing hot liqui s or when sterilizing.
Burning anger!
1. Supply compresse air to the actuator.
Pay special attention to the warnings!
2. Fit the amper so that amper piston ro (72)
enters actuator piston ro (6).
Oil type SAE 40
Ensure that
no other
equipment
is fitte on the
actuator top!
1. Fit protective hoo (84).
2. The valve is now rea y for operation.
1. Connect the two piston ro s by means of clip
(71).
2. Release compresse air to the actuator.
Pay special attention to the warnings!
Air (NC, A/A)
Installation
Air (NC, A/A)
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