Alfalaval OS12 User manual

3205-0000

100000817-EN2 2021-03

Original manual

Instruction Manual

Alfa Laval OS Twin Screw Pump

This page

intentionally

left blank.

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

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. General description ................................................................................... 6

2.1. General description ............................................................................... 6

3. Safety .................................................................................................... 7

3.1. Important information ............................................................................. 7

3.2. Warning signs ..................................................................................... 8

3.3. Safety precautions ................................................................................ 9

3.4. Recycling information ............................................................................. 11

4. Installation .............................................................................................. 12

4.1. Unpacking, Handling and Storage .............................................................. 12

4.2. System design and installation .................................................................. 14

4.3. Flushing seal arrangement and pre-start up checks .......................................... 18

5. Maintenance ........................................................................................... 20

5.1. Cleaning in place (CIP) ........................................................................... 20

5.2. Maintenance schedule ........................................................................... 21

5.3. Dismantling ........................................................................................ 22

5.4. Assembly .......................................................................................... 30

5.5. Maintenance seals - Single Seal - All Models .................................................. 39

5.6. Single Flushed Seal - All Models ................................................................ 41

5.7. Double Seal OS1x ................................................................................ 43

5.8. Double Seal OS2x, OS3x, OS4x ................................................................ 46

5.9. Heating (option) ................................................................................... 49

5.10.Rectangular Inlet (option) ......................................................................... 50

5.11.Trouble shooting .................................................................................. 51

6. Technical data ......................................................................................... 52

6.1. Technical data ..................................................................................... 52

6.2. Pumphead Clearance information .............................................................. 54

7. Parts list ................................................................................................ 55

7.1. Twin Screw Pump Range (All Models) .......................................................... 55

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

1 EC Declaration of Conformity

Revision of Declaration of Conformity 2009-12-29

The Designated Company

Alfa Laval Eastbourne, Alfa Laval Ltd

Company Name

Birch Road, Eastbourne, East Sussex BN23 6PQ

Address

+44 (0) 1323 412555

Phone No.

hereby declare that

Pump

Designation

OS12, OS14, OS16, OS22, OS24, OS26, OS32, OS34, OS36, OS42, OS44, OS46

Ty p e

From serial number 10.000 to 1.000.000

is in conformity with the following directive with amendments:

- Machinery Directive 2006/42/EC

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

Global Product Quality Manager

HFH Lars Kruse Andersen

Title Name

Kolding 2021-03-31

Place Date Signature

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

2 General description

2.1 General description

The Alfa Laval OS range of pumps is of conventional Twin Screw pump design with the positive displacement

being provided by non-contacting, contra rotating screws within a fully swept pump chamber.

Handling from low to high viscosity pumped media, the pump’s characteristic smooth, low shear pumping

action is ideal in application areas such as Dairy, Food, Beverage, Home & Personal Care Industries.

The pump can also be run at high speeds for CIP (clean in place) cleaning of the pump and system.

A) Front cover

B) Pump Casing

C) Seal Housing

D) Gearbox

E) Coupling Guard

F) Motor

G) Baseplate

3205-0049

The pump should only be used for the duty for which it has been specified. The operating pressure, speed and temperature

limits have been selected at the time of order and MUST NOT be exceeded. These details are stated on the original order

documentation and if not available may be obtained from your supplier quoting pump model and serial number.

Under certain operating conditions pumps and/or drives and/or the systems within which they are installed can produce sound

pressure levels in excess of 80 dB[A]. When necessary, protection against noise should be taken.

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

3 Safety

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

Warnings are emphasized by means of special signs.

3.1 Important information

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

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

Indicates important information to simplify or clarify procedures.

Contact details for all countries are

continually updated on our website.

Please visit www.alfalaval.com to access the information directly.

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

3 Safety

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

Warnings are emphasized by means of special signs.

3.2 Warning signs

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

3 Safety

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

Warnings are emphasized by means of special signs.

3.3 Safety precautions

read the technical data thoroughly. (See chapter 6 Technical data).

start in the wrong direction of rotation with liquid in the pump.

put your hands or fingers inside the port connections or anywhere close to rotating shafts.

have the pump electrically connected by authorized personnel. (See the motor instruction supplied

with the drive unit)

Alfa Laval recommends the supply disconnecting device shall be in accordance with EN 60204-1.

read the technical data thoroughly. (See chapter 6 Technical data)

stand on the pump or pipelines.

run the pump with either the suction side or the pressure side blocked.

put your hands or fingers inside the port connections or anywhere close to rotating parts.

run the pump unless fully assembled and all guards are securely fitted, i.e. pump head must not

be removed from gearcase.

ensure any guards are securely fitting and in good condition.

touch the pump or the pipelines when pumping hot liquids or when sterilising.

In certain operating conditions external surfaces of the pump and/or ancillary equipment may

exceed 80oC. As such users should avoid touching the pump and/or ancillary equipment during

operation taking precautions if it is unavoidable to do so.

Only handle toxic and acidic liquids in accordance with the manufacturers instructions and

recommendations.

read the technical data thoroughly. (See chapter 6 Technical data)

ensure adequate Personal Protective Equipment (PPE) is worn during any maintenance activities.

service the pump when it is hot.

The pump and the pipelines must n

be pressurised when the pump is serviced.

put your hands or fingers inside the port connections or anywhere close to rotating parts.

Installation and operation of the pump must always comply with any local health and safety regulations.

Any hazardous and/or hot, drained or leaked, liquid shall be disposed in compliance with any local health

and safety regulations. If requested at the time of quotation,

the equipment can be supplied with a means of safe containment of any hazardous and/or hot, drained or

leaked liquid (Drip Pan).

ensure the power supply is disconnected (in an off position) and is locked out to prevent accidental

operation.

Please refer to any motor/geared motor and coupling operating manuals supplied with the unit for

maintenance instructions.

Always ensure pump and ancillary equipment has been allowed to cool before touching.

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

3 Safety

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

Warnings are emphasized by means of special signs.

lift or elevate in any way other than described in this manual

drain the pump head and accessories of any liquid

ensure that no leakage of lubricants can occur

transport the pump in it’s upright position

ensure that the unit is securely fixed during transportation

use original packaging or similar during transportation

use a suitable transport device i.e. forklift truck or pallet lifter

CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411

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