Pfeiffer Vacuum MVP 035-2 User manual

Membranvakuumpumpen

Diaphragm Vacuum Pumps

PU 800 011 BE/G (0211)

MVP 035-2,

MVP 055-3, MVP 055-3C

Betriebsanleitung • Operating Instructions

1. Safety Precautions.................................. 3

1.1. For Your Orientation........................................................... 3

1.2. Pictogram Definitions........................................................ 3

2. Understanding The Pump ....................... 4

2.1 Main Features..................................................................... 4

2.2. Differences Between The Pump Types.......................... 5

3. Installation............................................... 6

3.1. Setting Up The Pump And Location ................................ 6

3.2. Connection Of Pumping Stages....................................... 6

3.3. Connecting The Vacuum Side.......................................... 7

3.4. Connecting The Exhaust Side .......................................... 7

3.5. Connecting To Mains Power............................................ 7

3.5.1 Adjusting Voltage Selector............................................... 8

4. Operations................................................ 9

4.1. Important Information ....................................................... 9

4.2. Operation With Gas Ballast.............................................. 9

4.3. Shutdown .......................................................................... 10

5. What To Do In Case Of Breakdown? ... 11

6. Maintenance.......................................... 11

6.1. Precautionary Measures During Maintenance Work 11

6.2. Cleaning And Replacing Diaphragms And Valves...... 12

6.2.1.MVP 035-2 ......................................................................... 12

6.2.2.Product-Line MVP 055-3 / MVP 055-3C ........................ 13

7. Service.................................................... 16

8. Technical Data....................................... 17

8.1. Dimensions........................................................................ 18

8.2. Substances Which Come Into Contact With

The Medium ...................................................................... 20

9. Accessories ........................................... 20

10. Spare Parts............................................. 21

Contamination Declaration......................... 22

Conformity Declaration ................... last page

Index

Page

Modifications reserved

Please note!

Current operating instructions are available via

www.pfeiffer-vacuum.de under "Infoservice".

Adopt suitable measures to prevent dangers arising from

dangerous or explosive gases and ensure that the materials

of the wetted parts are compatible, see section “Technical

data”.

☞Adopt suitable measures to prevent the release of

dangerous, explosive, corrosive or polluting fluids.

☞Take adequate precautions to protect people from the

effects of dangerous substances, wear appropriate safety-

clothing.

☞Obey applicable regulations when disposing of chemicals.

Take into consideration that chemicals may be polluted.

Adopt suitable measures to prevent dangers arising from the

formation of explosive fluids or explosive or flammable mixtu-

res.

☞Use inert gas for gas ballast if necessary.

☞The user must take suitable precautions to prevent any

formation of explosive mixtures in the expansion chamber.

In case of a diaphragm crack, mechanically generated

sparks, hot surfaces or static electricity may ignite these

mixtures.

Danger of damage to the pump or system.

Danger of personal injury.

1.2. Pictogram Definitions

1.1. For Your Orientation

Instructions in the text

➡Operating instructions: Here you have to do something!

Symbols used

The following symbols are used throughout in the

illustrations:

Vacuum connection (intake side)

Exhaust connection (outlet side)

Power supply connection

Gas ballast connection

Position numbers

Identical components and accessories parts have the same

position numbers in all illustrations.

Important note.

☞

PLEASE NOTE

1. Safety Precautions

☞Read and follow all the instructions in this manual.

☞Inform yourself regarding:

☞Hazards which can be caused by the pump;

☞Hazards which can arise in your system;

☞Hazards which can be caused by the medium being

pumped.

☞Avoid exposing any part of the body to vacuum.

☞Observe all safety and accident prevention regulations.

☞Check regularly that all safety requirements are being

complied with.

☞Do not carry out any unauthorised conversions or

modifications on the pump.

☞When returning the pump to us please note the shipping

instructions in Section 7.

Danger of burns from touching hot parts.

BEWARE

Danger of an electric shock.

DANGER

Danger of an explosion.

DANGER

2.0. Understanding The Pump

2.1. Main Features

K2.1

A1 D 2.1 U N E

C23

40 A1

D2.1UNE

40 28 BA1

Diaphragm Vacuum Pump MVP 035-2

A1 Vacuum connection (with hose)

2.1 Exhaust connection (silencer)

A Membrane head 1

B Membrane head 2

E Voltage supply

N Main switch

K Capacitor

U Voltage selector switch

23 Hose connection

40 Gas ballast valve

Diaphragm Vacuum Pump MVP 055-3 with hose connection

A1 Vacuum connection

2.1 Exhaust connection (silencer)

A Membrane head 1

B Membrane head 2

C Membrane head 3

D Membrane head 4

E Voltage supply

N Mains switch

U Voltage selector switch

23 Hose connection

Diaphragm Vacuum Pump MVP 055-3C with small flange connection

A1 Vacuum flange

2.1 Exhaust connection

A Membrane head 1

B Membrane head 2

C Membrane head 3

D Membrane head 4

E Voltage supply

N Mains switch

U Voltage selector switch

28 Hose connection

40 Gas ballast valve

The Diaphragm Vacuum Pumps Series MVP 055-3/3C are

three stage and the pumps of the MVP 035-2 series are two

stage dry compressing pumps. This means that any medium

being pumped is not brought into contact with lubricating

agents.

The pumps are of the displacement type where the movement

of the diaphragm causes a periodic change in the size of the

working chamber. The flow of gas causes the self-acting val-

ves to open and close.

The pumping units are directly connected to the drive motor.

Pump versions

Standard version = MVP 035-2, MVP 055-3.

C- version = Pump in corrosive gas version:

Pump in corrosive gas version are distinguished from the afo-

rementioned standard versions by the use of corrosive gas

resistant materials in the working chamber which comes into

contact with the media (see Section 8.2 for such materials).

Gas ballast version:

To avoid condensation in the pump, the MVP 035-2, the

MVP 055-3C are fitted with a gas ballast valve as standard.

Motor versions:

All pumps described in that manual are equipped with an

single phase broad range voltage motor.

2.2. Differences Between The Pump Types

Typ Number Max. volume Final pressure, Gas

of flow rate total ballast-

cylinders (m3/h) without / with valve

50/60 Hz gas ballast

MVP 035-2 2 2,1/2,4 4 mbar / 5 mbar yes

MVP 055-3 4 3,3/3,8 2 mbar no

MVP 055-3C 4 3,0/3,5 2 mbar / 4 mbar yes

Proper use

– The Diaphragm Pump MVP pump series may only be used

for the purpose of generating vacuum.

– Do not pump corrosive or explosive gases.

– Do not pump liquids.

– Do not operate the pump in locations where there is an

explosion hazard.

– Accessories other than those named in this manual may

not be used without the agreement of PFEIFFER.

– Do not use the connecting line between the heads of the

pump as a handle.

– The Diaphragm Pumps may not be used for the purpose of

generating pressure.

– Equipment must be connected only to a suitable fused and

protected electrical supply and a suitable earth point.

– Ensure that installation is in compliance with limitations

from the degree of protection, see section “Technical

Data“.

Improper Use

The following are regarded as improper:

– Uses not covered above, and, in particular:

– Connection to pumps and units which is not permitted

according to their operating instructions.

– Connection to units which contain touchable and voltage

carrying parts.

Improper use will cause any rights regarding liability and gua-

rantees to be forfeited.

Features

– Switchable single phase broad range voltage motor.

– Mains connection via cold unit socket with safety strap

(mains cable not included in the standard delivery).

– ON/OFF mains switch.

MVP 055-3, MVP 055-3C

The pump is equipped with four separately operating pump

stages A, B, C, D which are connected via hoses to form a

three-stage vacuum pump.

– The vacuum connection A1 is equipped as follows:

MVP 055-3 --> hose connection DN 10

MVP 055-3C --> small flange DN 16 ISO-KF.

– Depending on the pump version, the exhaust connection

2.1. of the MVP 055-3/-3C is fitted as follows:

MVP 055-3 --> silencer (standard), small flange

DN 16 ISO-KF (option).

MVP 055-3C --> corrugated hose DN 10 (standard),

small flange DN 16 ISO-KF (option).

3. Installation

3.1. Setting Up The Pump And Location

Be sure to select the correct pump version whe-

re the pumping of possibly aggressive media are

involved.

➡Place pump on a smooth, even surface.

➡Anchor the pump if it is to be erected in a stationary positi-

on.

– Avoid mechanical stresses due to rigid connections. Ins-

ert elastic hoses or resilient elements as couplings

between the pump and rigid pipes.

➡Maximum ambient temperature +12 ... +40 °C.

– Make sure ventilation is adequate if pump is installed in

a enclosure or if ambient temperature is elevated.

– If pump is installed above 1000 m above mean sea level

check compatibillity with applicable safety require-

ments, e. g. DIN VDE 0530 (motor may overheat due to

insufficient cooling).

3.2. Connection of Pumping Stages

➡Check the hose connections for the correct type of

connecting pieces before connecting the pump to the

vacuum chamber.

– Intake and outlet connections are marked with “IN” and

“EX” respectively at the membrane heads.

Interchanging the connections will result in

impermissibly high over-pressure levels.

MVP 035-2

The pump functions on the two stage principle.

On the two membrane heads A and B the intake connection is

marked with an “IN” and the exhaust connection with an

“EX” to prevent confusion.

– The vacuum connection (intake side) is provided with a 1m

plastic hose and G 1/4“ screw (option: small flange) for

connection to a PFEIFFER turbopump.

– The exhaust connection of the MVP 035-2 is provided with

a silencer and can also retrovit to small flange connection.

PU011persp

MVP 055-3C with small flange

A1 Vacuum connection with small

flange DN 16

IN Vacuum connection at membrane

heads

2.1 Exhaust connection

EX Exhaust connection at membrane

heads

A Membrane head 1

B Membrane head 2

C Membrane head 3

D Membrane head 4

E Voltage supply

28 Hose connection

40 Gas ballast valve

A1 A EX

IN 2.1(EX)

3.5. Connecting To Mains Power

The pump is driven by AC motors with the following possible

variants:

Power connections must comply with local

regulations. Voltage and frequency information

given on the rating plate must correspond to the

mains voltage and frequency values. The pump

may only be connected to mains current with

earthed conductor.

A thermostatic self-locking coil protection auto-

matically switch off the motor by over-heating.

➡Switch off pump the pump or isolate the equipment from

mains, wait appr. five minutes for cooling down, before

restarting the pump.

Connect diaphragm pumps in the pumping stati-

on according wiring diagram in operating

instructions PT 800 030 BN of the Backing Pump

Relay Boxes.

☞

PLEASE NOTE

3.3. Connecting The Vacuum Side

➡Remove locking cap on intake connection.

➡Make connection between the vacuum system and pump

as short as possible.

➡Connect pump with intake connection to the apparatus.

➡If liquid - which would generate vapours - is present in the

system to be evacuated, a condensate trap must be fitted

upstream of the pump.

3.4. Connecting The Exhaust Side

Pressure can rise to dangerous levels in exhaust

lines. Therefore, lay exhaust side lines without

shut-off units. Do not connect the exhaust side

with a closed system on account of the danger

of bursting. For the maximum counter pressure

values at the exhaust please refer to Section 8, Technical

Data.

– If, for internal operating reasons, a shut-off unit has been

fitted or if there is a danger that over-pressures can build

up in the lines, the local accident prevention regulations

must be observed.

In certain applications, exhaust gases and

vapours can be very hot and represent a health

and/or environment hazard.

➡Lay lines from the pump sloping downwards so that

condensate cannot run back into the pump, otherwise fit a

separator.

Connection with Relaisbox at TC 600 for intermittend operation

Backing pump

MVP line

Relaisbox

PM 041 937 AT

3.5.1. Adjusting Voltage Selector

3.4.a Voltage Selector Switch U On The Terminal Box Cover

A Setting range marking

X Position "230", voltage range (200.....240V; 50/60Hz)

Y Position "115", voltage range (100.....120V; 50/60Hz)

The respective single phase mains voltage must be checked

before each installation or re-location of the diaphragm

pump.

Use an appropriate screwdriver on the diaphragm pump

voltage selector switch to select the range which

corresponds with the mains voltage provided (please see

Figure 3.4a).

Be sure to disconnect the pump from mains

power before changing the voltage range.

Prior to switching on the pump always check

the voltage range which has been set on the

pump terminal box..

4.1. Important Information

Use only “C” version pumps where the pumping

of corrosive gases is involved.

The diaphragm and valves will suffer damage if

fluids are pumped over lengthy periods!

Before starting, ensure that impermissibly high

pressures cannot build up on the pressure side.

Interchanging the connections causes

dangerous excess pressure levels.

Do not start the pump if pressure difference

between inlet and outlet exceeds max. 1 bar.

Attemps to start pump at higher differential

pressure may cause the motor to jam and

damage may result.

4. Operations

Gas ballast valve 40

43 Top

X Valve open

Y Valve closed

4.2. Operation With Gas Ballast

Let the pump run with gas ballast to reduce condensation of

pumped substances (water vapour, solvents, ....) in the pump.

Opening the gas ballast valve

➡Turn the top 43 of the gas ballast valve 40 to the position Y

(open).

With gas ballast valve open ultimate vacuum

will be reduced, pumping speed is decreased.

In case of low boiling solvents when the forma-

tion of condensate is unlikely, the use of gas

ballast might be unnecessary.

Operating the pump without gas ballast increa-

ses the solvent recovery rates at the exhaust waste vapour

condenser.

☞

PLEASE NOTE

Important notes regarding the use of gas ballast

Make sure that air/gas inlet through the gas

ballast valve never lead to hazardous, explo-

sive or otherwise dangerous mixtures. If in

doubt, use inert gas.

When using air rather than inert gas, risk of sig-

nificant damage to equipment and/or facilities,

risk of personal injury or even loss of life exists

due to the formation of hazardous and/or explo-

sive mixtures if air and pumped media react

inside or at the outlet of the pump.

Do not pump vapour before pump has reached

its operating temperature and with gas ballast

valve closed.

If the pump is subjected to condensates it

should be allowed to run for a few minutes

under atmospheric pressure before switching

off.

☞

PLEASE NOTE

DANGER

Starting the pump

The pump can be switched on and off at all times.

When starting the pump or system and when the presence of

vapour is to be anticipated it is recommended to open the gas

ballast valve in advance.

If the intake pressure of the pump increases or

is unusually high, the valve can also be opened

when the pump is running. Once the final pres-

sure has stabilised the valve can again be clo-

sed.

When the pump is running, surfaces and motor

casing become hot.

The pump attains the stated values for through-

put rates and final pressure levels only once

the operating temperature is reached (after

approximately 15 minutes).

☞

PLEASE NOTE

BEWARE

☞

PLEASE NOTE

4.3. Shutdown

Short-term after formation of condensate:

➡Allow the pump to continue to run at atmospheric pressure

for a few minutes.

➡Check and clean pump heads if the pump has been

exposed to media which may damage the pump materials

or forms deposits.

Long-term:

➡Take measures as described in section short-term shutdo-

wn.

➡Separate pump from the apparatus.

➡Close gas ballast valve.

➡Close inlet and outlet port (e. g. with transport caps).

➡Store the pump in dry conditions.

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