SKF PTEX Manuale utente

PTEX extruder pumps

for drums

Operating manual

PTEX

Page 1

951-130-409, edition 06/2009

Extruder pumps for drums

type PTEX

Imprint

The operating manual is part of the scope of

supply of the SKF extruder pump PTEX for

centralized lubrication systems.

The manual has been edited in conformity with

applicable standards and rules for technical

documentation.

SKF reserves the right to make changes to

adapt to technical improvement. Reprinting or

copying even of parts of this manual requires

the permission of SKF.

Imprint

EN Page 2

951-130-409, edition 06/2009

Contents

Imprint ............................................................. 1

Introduction .................................................... 3

Notes on the operating manual ................... 3

Safety instructions ......................................... 4

Applications .................................................... 5

Lubricants ....................................................... 5

Delivery ........................................................... 6

Transport and Storage .................................. 6

Versions ......................................................... 7

Design ............................................................. 8

Control console ........................................ 10

Function ........................................................ 13

Installation .................................................... 14

Setup ......................................................... 14

Compressed air connection .................... 14

Lubricant outlet connection ................... 14

Electrical Connection ............................... 14

Position Reed switch (warning level) .... 15

Air solenoid valve (option) ...................... 15

Pressure switch (option) ......................... 15

Putting in place the drum ........................... 16

Removing the drum .................................... 16

Commissioning ............................................. 17

Bleeding the extruder pump PTEX ....... 17

Maintenance ................................................. 18

Faults ............................................................. 18

Placing out of Service ................................. 20

Temporary Standstill ............................... 20

Final Standstill .......................................... 20

Spare parts ................................................... 21

Technical data ............................................... 22

Service .......................................................... 23

Page 3

951-130-409, edition 06/2009

Introduction

The extruder pumps PTEX are remarkable in

their operational reliability and long service life.

The extruder pumps are made in conformity

with the generally recognized rules of technol-

ogy and the applicable safe working practices

and the rules for accident prevention. Still

hazards may be involved in their use, which

can lead to injury of operators or other persons

or damage to the machine or other property.

To ensure trouble-free operation and prevent

hazard, we kindly ask you to read the pre-

sent manual carefully and observe the notes

contained in it.

The present manual gives the instructions for

operating and servicing standard pumps PTEX

(†page 7). In the case of a special pump

PTEX, read carefully the technical sheet deliv-

ered with the pump with all specic technical

data).

Notes on the operating

manual

Text marked with this sign alerts to

special hazards or work that must be

performed with caution.

Keep the operating manual in a safe place so

that it is always available wherever the system

is in use.

This operating manual is a part of the system,

and it must be given to the operating company

upon sale of the system.

Introduction

EN Page 4

951-130-409, edition 06/2009

Safety instructions

Please comply with the following safety

instructions in order to prevent possible

damage and to ensure that the extruder pump

PTEX works properly.

Use the extruder pump PTEX only in techni-

cally perfect condition for its intended use. Be

aware of hazards and observe the operating

manual.

Especially errors that could affect safety must

be resolved without delay. Safety measures

corresponding to the parameters of the lubri-

cant supplied must be stipulated.

The safety mechanisms must not be damaged,

dismantled, or in any way made inoperable,

nor must they be replaced by parts which have

not been expressly approved of by SKF.

The electrical connection and all interventions

such as repairs, component replacement, etc.

may be carried out only by properly qualied

and instructed personnel.

If devices are improperly connected,

substantial material and personal

damage may be the consequence.

Repair work must only be performed after a

trained specialist has disconnected the unit

from power.

Working on an extruder pump under

electrical voltage could lead to per-

sonal injury.

The centralized lubrication system connected

to the pump may be under pressure. Before

extension work, changes, repairs etc. it must

be depressurized.

Working on systems under pressure

could lead to personal injury.

Unauthorized modications to the

pumps and the use of unauthorized

spare parts and aids are prohibited

and disqualify the warranty.

Worn-out pumps must be made inoperable

and disposed of properly.

Safety instructions

Page 5

951-130-409, edition 06/2009

Applications

All products from SKF may be used

only for their intended purpose

as described in this brochure and in

any instructions. If operating instructions

are supplied with the products, they must

be read and followed.

Not all lubricants are suitable for use in

centralized lubrication systems. SKF does

offer an inspection service to test customer

supplied lubricant to determine if it can be

used in a centralized system. SKF lubrica-

tion systems or their components are not

approved for use with gases, liqueed

gases, pressurized gases in solution and

uids with a vapor pressure exceeding

normal atmospheric pressure (1013 mbars)

by more than 0,5 bar at their maximum

permissible temperature.

Hazardous materials of any kind, especially

the materials classied as hazardous by

European Community Directive EC 67/548/

EEC, Article 2, Par. 2, may only be used to

ll SKF centralized lubrication systems and

components and delivered and/or distrib-

uted with the same after consulting with

and receiving written approval from SKF.

Lubricants

The extruder pumps PTEX can supply lubri-

cants with the following NLGI grades:

greases with NLGI grade 000 to grade 2•

A list of authorized viscous lubricants can be

found on the Internet at www.skf.com/lubrica-tion. The lubricants recommended correspond

in their composition to customary safety

regulations, and they are suitable for use in

centralized lubrication systems.

Whenever using other lubricants, keep in

mind that there are lubricants which, although

within the authorized limits, nevertheless are

unsuitable for centralized lubrication systems

because of their characteristics. Consult the

manufacturer of your unit.

Keep in mind that lubricants are environ-

mentally unfriendly substances and that their

transport, storage and processing require that

special safety measures be taken.

For other lubricants, please contact SKF.

The extruder pumps PTEX serve to supply

lubricant to centralized lubrication systems.

Other use or use beyond this purpose is con-

sidered unintended. SKF will not accept liability

for damages resulting from such unintended

use.

Only authorized lubricants for the

pump type may be supplied. Unsuita-

ble lubricants could lead to the pump

failing and possibly severe property damage

and personal injury.

Applications

EN Page 6

951-130-409, edition 06/2009

Delivery

Upon receiving the package please check the

items for possible damage, and ensure the

package is complete by checking the supply

papers.

Keep the packaging material until any and all

problems have been claried.

Transport and Storage

In general, the pump should be stored in a dry

and dust-free environment. It must be stored

with the base on the ground (horizontal).

The storage temperatures can be found in the

specications.

Delivery

Page 7

951-130-409, edition 06/2009

Tableau 1 Type keyDesignation PTEX - 25 - E - B - V01 + 924

Extruder pump for drum

Drum capacity (25, 50 ou 200 kg)

Extruder pump equipment 1)

Pneumatic pump type 2)

Follower plate index 3)

Voltage key 4)

1) S: standard equipment

E: electric option (solenoid valve and pressure switch)

2) A: pump with a max. delivery rate of 0,83 kg / mn at 6 bars (recommended for 200 kg drums)

B: pump with a max. delivery rate of 0,5 kg / mn at 6 bars (recommended for 25 and 50 kg

drums)

3) V01: follower plate with wiper seal (seal material: FPM)

N01: follower plate with wiper seal (seal material: nitrile)

4 ) +924: 24 V DC

+428: 230 V 50/60 Hz

+429: 115 V 50/60 Hz

Versions

The extruder pumps PTEX are available for

three different drums capacities (25, 50 and

200 kg). Every pump is equipped with a posi-

tion detector, type Reed switch (warning level)

to monitor the motion of the follower plate.

As electric options, a solenoid valve, to control

the general air inlet, and a pressure switch, to

monitor the lubricant outlet, are also available.

Even if the extruder pump is designed for

three different drum capacities, the inner

diameter of the drum can differ according to

the model. Therefore, SKF designs the follower

plate for every application, according to the

technical data of the drum.

How your pump is equipped is indicated on the

nameplate and delivery papers. The adjacent

table explains the type key.

If a extruder pump unit is not listed

in table 1, please refer to the deliv-

ered technical sheet to know the

specic technical data of the unit.

Versions

EN Page 8

951-130-409, edition 06/2009

Design

Figure 1 shows the essential design of the

extruder pump PTEX for 25 kg drum.

The extruder pump PTEX consists in three

main components:

support frame•

pneumatic pump•

control console (• †page 10)

The support frame is made of two vertical

cylinders linked to each other by a traverse

bar, which holds the pneumatic pump. The two

cylinder are xed on a common base, which

makes the handling of the extruder pump

easier. The drum is centered and xed on the

base with anges. For the extruder pump for

200 kg drums a safety bow prevent any risk of

accident with the drum.

The pneumatic pump sucks up lubricant

directly into the drum and delivers it to the

centralized lubrication system. The length of

the suction pipe depends on the model of the

drum. The pipe is equipped at its end with a

follower plate and a wiper seal to ensure the

tightness of the drum. The user can bleed

the drum with a rst manual bleeding valve

located above the follower plate. With a second

manual valve at the pneumatic pump outlet he

can bleed the extruder pump.

The extruder pump PTEX is equipped with

several devices to monitor the good function

and to ensure the security of the system: The

lubricant outlet pressure is monitored with a

manometer, a Reed switch (adjustable) detects

the position of the follower plate before it is

getting to the bottom of the drum (warning

level) and a safety switch interrupts the func-

tion of the pneumatic pump when the follower

plate has reached the bottom of the drum.

In addition (electric option) the extruder pump

can have two other electric devices: a solenoid

valve to control the general air inlet and a

pressure switch to monitor the lubricant outlet

pressure.

Design

Extruder pumpAir lter/lubricator (actuation of the 1.

pump)

Air inlet G 3/8"2.

Air manual control valve (or 3/2 solenoid3.

valve – electric option)4.

Air lter5.

Drum bleeding valve6.

Manometer (lubricant pressure)7.

Pneumatic pump8.

Control console (9. † page 10)

Cylinder10.

Flange (centering and fastening)11.

Pressure switch (electric option)12.

Lubricant outlet connection R 3/8"13.

Pump bleeding valve14.

Suction pipe15.

End switch (follower plate stroke)16.

Follower plate17.

Position detector, type Reed switch –18.

warning level

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