Valmet Flowrox LPP-T32-T80 Handbuch

Installation, operation and

maintenance instructions for

Flowrox™ LPP-T32-T80 peristaltic

hose pumps

These instructions must be read carefully and understood prior to the installation, use, and servicing of this

product.

Installation, maintenance and

operating instructions

4LPPT70EN - 5/2023

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THIS MANUAL PROVIDES INSTRUCTIONS TO CARRY OUT CERTAIN ACTIVITIES AND IS DESIGNED AND

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FUNCTIONS. EVERYONE MUST BECOME FAMILIAR WITH ALL INSTRTUCTIONS IN THIS MANUAL

BEFORE ANY INSTALLATION, USE, MAINTENANCE, REPAIR OR ANY OTHER ACTIONS OF THE RESPECTIVE

GOODS AND/OR SERVICES WHICH THIS MANUAL APPLIES TO. ALL INSTRUCTIONS MUST BE FOLLOWED

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COMPLETENESS OF THIS MANUAL.

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FROM TIME TO TIME TO THIS MANUAL. ALL USERS ARE OBLIGATED TO FIND OUT AND DETERMINE

WHETHER THERE HAVE BEEN ANY APPLICABLE UPDATES OR AMENDMENTS TO THIS MANUAL. NEITHER

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FLOWROXTM IS EITHER REGISTERED TRADEMARK OR TRADEMARK OF VALMET OR ITS SUBSIDIARIES OR

AFFILITIATES IN THE UNITED STATES AND/OR IN OTHER COUNTRIES. ALL OTHER TRADEMARKS, LOGOS,

BRANDS AND MARKS DISPLAYED IN THIS MANUAL ARE PROPERTY OF THE RESPECTIVE OWNERS UNLESS

STATED OTHERWISE.

34LPPT70EN - 5/2023

READ THESE INSTRUCTIONS FIRST!

ese instructions provide information about safe handling and

operation of the product

If you require additional assistance, please contact the

manufacturer or manufacturer’s representative.

SAVE THESE INSTRUCTIONS!

Addresses and phone numbers are printed on the back cover.

Table of Contents

1 EU DECLARATION OF

CONFORMITY 4

1.1 Mechanical warranty for LPP-T pumps 5

1.2 Safety instructions for LPP-T pumps 5

2 INTRODUCTION 6

2.1 Applications and purposes of use 6

2.2 General description 7

2.3 Electrical equipment 11

2.4 Technical data 12

3 TRANSPORTATION,

STORAGE AND LIFTING 13

4 INSTALLATION 13

4.1 General 13

4.2 Pump installation 14

4.3 Electrical connection 15

4.4 Piping connections 15

5 PUMP OPERATION 16

5.1 Commissioning 16

5.2 Operation 17

6 SERVICING AND

MAINTENANCE 18

6.1 General maintenance and checks 18

6.2 Changing the hose 19

6.3 Adjusting the hose compression 27

6.4 Maintenance 29

6.5 Troubleshooting 32

APPENDIX A: Tightening

torques for LPP-T pumps 33

APPENDIX B: Required

lubricant and compression

torque values for LPP-T hoses

APPENDIX C: Hose leak

detector chart 38

APPENDIX D: Claim form 39

APPENDIX E: Dimensions,

LPP-T pumps 40

4LPPT70EN - 5/2023

1 EU DECLARATION OF CONFORMITY

is declaration of conformity is issued under the sole responsibility of the manufacturer:

VALMET FLOW CONTROL OY

Marssitie 1

53600 Lappeenranta

Finland

Tel. +358 (0)10 417 5000

Product model/type: Peristaltic Hose Pump LPP-D and LPP-T

e object of the declaration described above is in conformity with the relevant Union harmonisation legislation:

Machinery Directive 2006/42/EC: Annex II A

ATEX Directive 2014/34/EU: Non-electrical equipment

Follow the pump installation, operating and maintenance instructions in this manual.

Person authorised to compile the technical le is Technology Manager Jarmo Partanen.

On behalf of Valmet Flow Control Oy

In Lappeenranta, 13th May 2022

Riku Salojärvi

Head of Operations

54LPPT70EN - 5/2023

1.1 Mechanical warranty for LPP-T pumps

e warranty is valid for 12 months from the delivery date,

excluding the following:

• wear parts, such as gaskets, bearings, and hoses (for

requirements concerning hose manufacturing defects,

see ‘PUMP HOSES’)

• pumps that the first buyer has resold without a written

agreement with the vendor regarding the remaining

portion of the warranty period

• direct or consequential damage caused by structural

changes made to the pump or by the use of parts that are

not approved by the original manufacturer

e purchaser must ll a claim for all compensation related to

the hose and/or pump guarantee within 30 days aer the fault

has been detected. For the claim form, refer to Appendix.

If the terms indicated in the claim form are not complied

with, the purchaser loses his or her right to the guarantee.

e guarantee compensates for new parts if any damaged

parts must be replaced. Terms of delivery: packed at the

factory, with no other costs covered.

PUMP HOSES:

e hose of the pump is in contact with the pumped product

and is exposed to wear, high temperatures, pressure shocks,

chemicals and other wearing mechanisms. e pump hose

is therefore considered a wearing part that requires periodic

replacement.

Flowrox pumps have proved reliable in several demanding

applications. However, the operation conditions vary to

the extent that we cannot specify an exact service life or

guarantee period for the hose. e guarantee applies to only

manufacturing defects of the hose.

If there is a manufacturing defect, the customer is entitled to

return the defective hoses to the supplier. e supplier shall

reimburse the customer for the value of the hoses, excluding

the freight charges, packaging costs, and other expenses,

upon the following conditions:

• the pump has been used only for its intended purpose

• for all claims regarding a hose fault, the hose in question,

along with a description of the operational conditions

and method used, has been delivered to Valmet Flow

Control Oy for chemical and mechanical analysis

Possible reimbursement for a faulty hose shall be made only

aer the hose examination.

1.2 Safety instructions for LPP-T pumps

In this manual, the following symbols are used to highlight

the parts requiring particular attention:

Hazard severity panels.

DANGER!

DANGER indicates a hazard with a high level of risk

which, if not avoided, will result in death or serious injury.

WARNING!

WARNING indicates a hazard with a medium level of

risk which, if not avoided, could result in death or serious

injury.

CAUTION!

CAUTION indicates a hazard with a low level of risk

which, if not avoided, could result in minor or moderate

injury.

SYMBOL DESCRIPTION

Risk to personal safety:

Neglecting the safety measures can cause serious

personal injury or death.

Electrocution hazard:

Neglecting the safety measures can cause serious

personal injury or death.

Falling load hazard

Crushing hazard

Read the operation and maintenance instructions:

Read and understand the operation and maintenance

instructions before using the product.

Mandatory action symbol:

Obey these instructions to prevent machine

malfunctions.

Prevent accidents and ensure the pump’s appropriate

operation by complying with the safety instructions indicated

in this manual. Installation and maintenance of the pump

must be carried out by persons with appropriate training.

4LPPT70EN - 5/2023

e safety aspects have been considered as much as possible

in the design of the pump.

Never use the pump with the front cover or inspection glass

open. If the glass must be removed for certain maintenance

procedures, apply extreme caution. Keep all body parts away

from the danger zone.

e pump has been connected to high voltage. e

connection box must not be opened when the drive unit

is connected. Electrical work must be carried out by

professional electricians.

e pump can produce and maintain high pressure. is

must be noted when someone opens the pipe connections

etc. e pipeline can contain high pressure even aer the

pump has stopped. Unauthorised personnel are not allowed

near the pump when it is in operation. e maintenance and

servicing of the pump must be carried out by persons with

appropriate training.

Pumps must always be equipped with the safety equipment

required by national regulations as appropriate to the place of

use. Regardless of national regulations, the pump unit power

supply must be equipped with at least the following electrical

safety devices:

• emergency switch

• main switch

• motor overload protector

• fuses

WARNING!

The front cover is part of the pump’s safety equipment.

Never use the pump without the front cover or with the

front cover open.

e following optional equipment is also considered safety

equipment:

• hose leak detector: stops the pump if the hose breaks

• pressure transmitter with display and overpressure limit:

stops the pump if the overpressure limit is exceeded

2 INTRODUCTION

2.1 Applications and purposes of use

LPP-T pumps are intended for pumping liquids, liquids

containing solid matter, sludge, and aggressive liquids.

Normal pumping operations include transfer, dosing, feeding,

and drainage pumping. Use for other purposes is forbidden.

e LPP-T peristaltic hose pump is restarting and gasketless.

e gasketless pump is not damaged even if it runs dry

for a relatively long time. e only part of the pump that

is in contact with the pumped medium is the hose. e

hose is also the only part of the pump that requires regular

replacement.

WARNING!

Using the pump for any purpose other than pumping is

strictly forbidden. Pump is not a safety device.

e protection class (IP) of the pump depends on the level

of equipment installed. e normal protection class for the

motor is IP54.

Restrictions on use for LPP-T pumps

e following restrictions on use must be taken into

consideration:

• LPP-T pumps operate on the displacement principle,

producing a fixed displacement flow for the pumping

cycle. In some applications this might cause overpressure

situations that may lead to equipment damage.

• The operation of the pump is peristaltic. The

displacement flow produced by the pump is not

continuous – there is a phase in each work cycle during

which the displacement flow is zero.

• Thus the displacement flow produced by the pump is

pulsatory, which is manifested in the piping as pressure

pulsation. The pulsation can be dampened by using

flexible piping parts or pulsation absorbers. Pulsation

may be harmful for piping or other equipment connected

to the piping.

Large particles in the medium may harm or cause

puncturing of the pump hose. The maximum particle

size for the pump is 1/4 of the diameter of the hose in

use, depending on the properties of the medium and the

shape of the particles.

• Certain chemicals (especially chemicals at high

temperature) cannot be pumped, or they may

significantly shorten the operating life of the hose

74LPPT70EN - 5/2023

Using the pump in explosive conditions

Special safety precautions must be followed when the pumps

are used in explosive conditions. e compatibility of the

pump for use in conditions classied as Ex as dened by the

ATEX standard is indicated on the pump’s type plate.

Special attention must be paid to the following precautions:

• preventive maintenance measures (changing the hose

and lubricating the bearings)

• electrical earthing

• temperature of the pumped medium (heat is conducted

into the pump structures)

Other matters to be taken into consideration:

• The LPP-T pump lubricant may react with oxidising

substances, resulting in a risk of fire or explosion.

• The condition of the pump bearings and the sufficiency

of the lubricant must be checked at least every three

months (more often if the conditions so require).

• The pump frame must be earthed in case of static electric

discharge.

• The pump and the motor must be kept clean in order to

prevent excessive heat production. At normal operating

temperatures, the heat generated by the pump rotation

will not exceed 60 °C (140 °F). The surface temperature

of the pump may, however, exceed 60° C (140 °F) if the

temperature of the pumped medium is higher. When the

unit is used in compliance with the ATEX standard, the

maximum temperature of the medium is 70 °C (158 °F).

2.2 General description

Principle of operation

e pump’s operation is based on the peristaltic eect: e

cylindrical rotor, tted with a bearing, compresses the hose

during the 360-degree working cycle. e rotor is installed on

a cranksha that enables the eccentric movement; as the rotor

rotates, it pushes the pumped medium forward in the hose.

Aer the rotor, the hose returns to its original shape, thus

forming a vacuum within. e vacuum then rells with

medium from the suction side. e hose compression

is adjusted to prevent backow through the point of

compression.

Mechanical structure

Figure 1. Main components of LPP-T pumps

1. Body

2. Drive unit

3. Crankshaft

4. Rotor assembly

5. Front cover

6. Hose

4LPPT70EN - 5/2023

Figure 2. Exploded view of complete LPP-T pump

Item no. Description Qty

1Pump head 1

2Adapter flange 1

3Screw 4

4Drive shaft 1

5Gear motor 1

6Screw 4

7Washer 4

8Connector flange 2

9Hose 1

All exploded parts are modular and order specic. Adapter

parts vary depending on the selected gear motor.

94LPPT70EN - 5/2023

Figure 3. Exploded view of LPP-T pump head

Item no. Description Qty

1Body 1

2Crankshaft 1

3Rotor assembly 1

4Bearing 1

5Wear ring 1

6Bearing 1

7Lock washer 1

8Lock nut 1

9Radial shaft seal 1

10 Locking ring 1

11 Countersunk screw 8

12 Bushing 1

13 Geared wheel 1

14 Locking cover 1

15 Grease nipple 1

16 O-ring 1

17 O-ring 1

18 Connector 1

19 Window seal 1

20 Front window 1

21 Reinforcement plate 1

22 Plug 1

Item no. Description Qty

23 Hinge 1

24 Hex socket screw 6

25 Socket screw 6

26 Hex socket screw 2

27 Hex socket screw 8

28 Hex screw 10

29 Hex screw 14

30 Washer 6

31 Washer 14

32 Hose guide 2

33 Breather set 1

34 Front cover 1

35 Hex plug 2

36 Countersunk screw 12

37 Hose bushing 2

38 O-ring 2

Parts and quantities may vary depending on the pump size.

e cranksha has been attached with a bearing to the pole

in the middle of the rear wall of the pump housing. e drive

unit is connected to the pole with a ange.

4LPPT70EN - 5/2023

e motor power is conveyed from the gearbox to the

cranksha via a coupling. A eccentric bushing is tted with a

bearing to the forward crank pin of the cranksha, to which

the hose compressing rotor is connected. When the drive

unit rotates the cranksha, the rotor rolls along the hose and

compresses it at a set distance from the inner surface of the

pump housing.

e only things changing with the pumped medium and ow

parameters are the material for hose and connections as well

as drive unit size.

e LPP-T pump can be equipped with one of two drive unit

types:

• helical bewel gear (A)

• shaft-mounted gear (B)

Both drive unit options can be delivered with a solid gear

motor, or a gear with an IEC ange for a motor with standard

connections.

A B

Figure 4. Pump drive unit options

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