Alfalaval SRC Manuel utilisateur

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

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

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.

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

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.

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).

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

Si e view

250

Top view

R 99.5

R 101.5

En view

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.

5 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.

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.

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:

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

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

B2 (incl. top unit)

Fit seal ring (17)

correctly!

Remember

seal rings!

Air

Open/close!

Installation

B2 (incl.

top unit)

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)

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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