LEYBOLD 312 31T Manuel utilisateur

TRIVAC® T

D4/8/16/30T

Two-Stage Rotary Vane Pump

▪ with mineral oil

Original Operating Instructions 300507907_002_C2

Part No:

312 31T

312 36T

312 41T

312 46T

312 51V

312 56T

312 61V

312 66T

and other variants

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Page

0Important Safety Information 4

0.1 Mechanical hazards 4

0.2 Electrical hazards 4

0.3 Thermal hazards 5

0.4 Hazards caused by materials and substances 5

0.5 Danger of ignition 5

0.6 Hazard caused by noise 5

0.7 Risk of damaging the pump 6

1Description 7

1.1 Function 7

1.2 Lubricants 9

1.3 Supplied Equipment 9

1.4 Accessories 10

1.5 Technical Data 11

2Transport and Storing 14

3Installation 15

3.1 Placement 15

3.2 Conforming Utilization 16

3.2.1 Non-conforming Utilization 16

3.3 Connection to the System 17

3.4 Electrical Connections 18

4Operation 20

4.1 Media Compatibility 20

4.2 Start-up 20

4.2.1 Start noise 20

4.3 Operation 21

4.3.1 Pumping of Non-Condensable Gases and Vapours 21

4.3.2 Pumping of Condensable Gases and Vapours 21

4.3.3 Operating Temperature 22

4.4 Shutdown 22

4.4.1 Controller/Mains Power Failure 22

5Maintenance 23

5.1 Maintenance Plan 24

5.2 Leybold Service 25

5.3 Monitoring the Oil Level 26

5.3.1 Checking the Condition of LVO 108 26

5.4 Oil Change 27

5.5 Cleaning the Inlet Screen 28

5.6 Disassembly and Reassembly of the Electric Motor 29

5.6.1 Checking the Coupling 29

5.7 Maintaining the Gas Ballast Valve 30

6Troubleshooting 32

7Wearing Parts and Original Spare Parts 34

8Waste Disposal 35

Contents

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Obligation to Provide Information

Before installing and commissioning the TRIVAC® T, carefully read these

Operating Instructions and follow the information so as to ensure optimum

and safe working right from the start.

The Leybold TRIVAC® T has been designed for safe and efficient operation

when used properly and in accordance with these Operating Instructions. It is

the responsibility of the user to carefully read and strictly observe all safety

precautions described in this section and throughout the Operating Instruc-

tions. The pump must only be operated in the proper condition and under

the conditions described in the Operating Instructions. It must be operat-

ed and maintained by trained personnel only. Consult local, state, and national

agencies regarding specific requirements and regulations. Address any further

safety, operation and/or maintenance questions to our nearest office.

DANGER indicates an imminently hazardous situation which, if not avoid-

ed, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoid-

ed, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoid-

ed, could result in minor or moderate injury.

NOTICE is used to notify users of installation, operation, programming or

maintenance information that is important, but not hazard related.

TRIVAC® T pumps are not designed:

■for pumping of dusty, aggressive, corrosive, flammable or explosive gases

or gases mixtures;

■for pumping of oxygen or other highly reactive gases with a greater concen-

tration than atmospheric concentration (>21%) ;

■for working in flammable, explosive or dusty environment.

For all these cases, special materials must be used. In case of doubt, please

contact Leybold.

Figures

The references to figures, e.g. (4/2) consist of the consecutive Fig. No. and

the Item No. in that order.

We reserve the right to alter the design or any data given in these Operating

Instructions. The illustrations are not binding.

Retain the Operating Instructions for further use.

NOTICE

DANGER

WARNING

CAUTION

NOTICE

WARNING

Notes

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0Important Safety Information

0.1 Mechanical hazards

1Avoid exposing any part of the human body to the vacuum.

2Never operate the pump without a connected intake line or without fitting

a blank flange on intake port.

3Do not operate the pump with any of the covers removed. Serious injury

may result.

4The location at which the TRIVAC® T (including its accessories) is being

operated should be such that angles over 10° from the vertical are avoid-

ed. Select the operating place so that all controls are easily accessible.

5The pump when filled with oil must only be moved in its vertical position.

Spilled oil involves the risk of falling.

6Make sure that the gas flow from the exhaust port is not blocked or re-

stricted in any way.

7If exhaust gases must be collected or contained, do not allow the exhaust

line to become pressurised. The pressure in the oil box must not exceed

1.5 bar (absolute). An exhaust line which is too small in diameter or which

is blocked can result in the formation of overpressures within the pump.

Possible consequences can be damage or even burst open the pump.

Thus the exhaust line must be checked from time to time to ensure that

there are no obstructions.

8When moving the TRIVAC® T always use the lifting means provided.

0.2 Electrical hazards

1The electrical connections must only be provided by a trained electrician

as specified, for example, by the regulations EN 50110-1. Observe local

regulations.

2Lethal voltages are present at the mains connections. Before starting with

any maintenance and service work, de-energise (lockout/tagout) the prod-

uct first.

3Lay connecting lines so that they cannot be damaged. Protect the lines

against humidity and contact with water. Avoid any heat stress on the line

due to unfavourable laying conditions.

4Suitably support the connecting lines so that the pumps are not exposed

to any major mechanical stress.

5After a mains power failure the pump will run up automatically again. This

also applies in the case of an emergency shutdown. In order to prevent

the pump from running up automatically again, the pump must be inte-

grated within a control arrangement such that it can only be switched on

manually again after the mains power has returned.

6Provide an adequate wall ground connection for the pump so as to avoid

any electrostatic charging.

7Before starting up for the first time, the motor circuit must be equipped

with a suitable protective motor switch. Please take note of the infor-

mation in these Operating Instructions and on the electric motor (wiring

diagram).

WARNING

Safety information

300507907_002_C2 -05/2019 - © Leybold 5

Safety information

0.3 Thermal hazards

1Under certain ambient conditions the TRIVAC® T may attain a tempera-

ture of over 70 °C (158 °F). There then exists the danger of receiving

burns.

Note the symbols on the pump pointing to the hazards, and in the case of

a hot pump wear the required protective clothing. All work on the “pump

still warm from operation” should only be done using protection gloves.

2Before servicing and maintenance work always leave the pump to cool

down.

3Consider always the warning information on the housing surfaces. If

these warning information have been removed, covered or obstructed, it’s

to secure that corresponding warning information will be attached again.

0.4 Hazards caused by materials and substances

1The pump is not suited for oxygen operation (>21% oxygen).

2Before commissioning the TRIVAC® T, make sure that the media which

are to be pumped are compatible with each other so as to avoid hazard-

ous situations. All relevant safety standards and regulations must be ob-

served.

3TRIVAC® T pumps cannot be used with toxic, chemical, radioactive and

corrosive gases as well as pyrophorous substances.

4If the pump has previously handled hazardous gases, implement the

proper precautionary measures before opening the intake or exhaust con-

nection.

Before opening the pump, purge it for a longer period of time with an inert

gas.

If necessary, use gloves, a respirator and/or protective clothing and work

under an exhaust hood. Firmly seal off the pump.

When shipping the contaminated pump for servicing, please also state

the type of hazard. For this you must use a form which we have pre-

pared for you.

5When cleaning a system in which a TRIVAC® T pump has been integrat-

ed, all parts in contact with the medium need to be compatible with the

cleaning agent so as to prevent a chemical reaction. Residues of the

cleaning agent within the pump must be avoided.

6Contaminated parts can be detrimental to health and environment. Before

beginning with any work, first find out whether any parts are contaminat-

ed. Adhere to the relevant regulations and take the necessary precau-

tions when handling contaminated parts.

0.5 Danger of ignition

1The standard version of the TRIVAC® T is not suited for operation in ex-

plosion hazard areas.

2The TRIVAC® T pumps including the accessories are fundamentally not

suited for pumping of combustible and explosive gases or vapours.

0.6 Hazard caused by noise

1The noise level produced by the pump is less than 60 dB(A).

CAUTION

DANGER

CAUTION

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0.7 Risk of damaging the pump

1Do not allow the ingestion of small objects (screws, nuts, washers, pieces

of wire, etc.) through the inlet port. For this reason always use the inlet

screen which is supplied as standard.

2Do not use the pump for applications that produce abrasive or adhesive

powders or condensable vapours that can leave adhesive or high viscosi-

ty deposits. When planning to pump vapours other than water vapour

please contact our sales or service department for advice.

3This pump is suited for pumping water vapour within the specified water

vapour tolerance limits.

4Avoid vapours that can condense into liquids when being compressed

inside the pump, if these substances exceed the vapour tolerance of the

pump.

5Before pumping vapours the TRIVAC® T should have attained its operat-

ing temperature. This will be the case approximately 30 minutes after

having started the pump. During this warming up phase, the pump should

be separated from the process, by a blocking valve in the intake line, for

example.

6In the case of wet processes we recommend the installation of liquid sep-

arators upstream and downstream of the pump as well as the use of the

gas ballast.

7The exhaust line should be laid so that it slopes down and away from the

pump so as to prevent condensate from backstreaming into the pump.

8The entry of particles and fluids must be avoided under all circumstances.

9Reactive or aggressive substances in the pump chamber may impair the

operating oil or modify it. In addition, such substances may be incompati-

ble with the materials of the pump (Viton, grey cast iron, aluminium, steel,

resins, glass etc.).

10. Corrosion, deposits and cracking of oil within the pump should be avoid.

11 Normal amounts of humidity within the range of the pump’s water vapour

tolerance will not significantly affect pump performance when the gas bal-

last is active.

12 When operating the pumps at gas throughput, it is urgently recommended

to connect an exhaust filter or use a suitable exhaust line. Here, the ex-

haust line must slope down and away from the pump.

13 In the case of custom pumps please note the information provided in the

supplementary sheets.

Safety information

NOTICE

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Areas of application

1Description

TRIVAC® T pumps are oil-sealed dual-stage rotary vane pumps. The number

in the type designation (4, 8, 16 or 30) indicates the pumping speed in m3·h-1.

TRIVAC® T pumps are capable of pumping gases and vapours and evacuat-

ing vessels or vacuum systems down into with the medium vacuum range.

The standard versions of the pump are not suited for pumping of oxygen ex-

ceeding the concentration as found in the atmosphere, and are also not suited

for pumping of hazardous gases or extremely aggressive or corrosive media.

1.1 Function

The rotor (1/7), mounted eccentrically in the pump housing (1/6), has two radi-

ally sliding vanes (1/5) which divide the pump chamber into several compart-

ments. The volume of each compartment changes periodically with the rotation

of the rotor.

As a result, gas is sucked in at the intake port (1/1). The gas passes through

the dirt trap sieve (1/2), flows past the open anti-suckback valve (1/3) and then

enters the pump chamber. In the pump chamber, the gas is passed on and

compressed, after the inlet aperture is closed by the vane.

The oil injected into the pump chamber is used for sealing and lubricating. The

slap noise of the oil in the pump which usually occurs when attaining the ulti-

mate pressure is prevented by admitting a very small amount of air into the

pump chamber. Pump is already with silencing device.

The compressed gas in the pump chamber is ejected through the exhaust

valve (1/9). The oil entrained in the gas is coarsely trapped in the internal

splashguard(1/10); there the oil is also freed of mechanical impurities. The gas

leaves the TRIVAC® T through the exhaust port.

During compression, a controlled amount of air -the so-called gas ballast - can

be allowed to enter the pump chamber by opening the gas ballast valve. The

gas ballast stops condensation of vapours in the pump chamber up to the limit

of the water vapour tolerance as specified in the technical data for the pump.

Description

1Intake port

2Dirt trap

3Anti-suckback valve

4Intake channel

5Vanes

6Pump chamber

7Rotor

8Exhaust channel

9Exhaust valve

10 Splashguard

11 Gas ballast

12 Exhaust port

Fig. 1 Sectional drawing of the TRIVAC® T

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Description

The gas ballast mechanism can be opened and closed by a knob on top of the

oil case. Two different positions (small or big amounts of gas ballast air) are

possible depending from the accruing amount of water vapour.

An oil pump (2/5) fitted inside of the inner pump body pumps oil from the oil

reservoir (the oil case) to lubricate all bearing points (2/1). And from there the

oil enters the pump chamber area (2/3) of the vacuum pump. The oil suction

line of the oil pump is placed low, resulting in a large usable oil reservoir.

The oil is separated from the gas in the TRIVAC T in two steps. First, small

droplets are coalesced into large drops in the internal protective cover (1/10)

fitted above the exhaust valves (1/9). From there the oil drops goes into the oil

case and from the walls back into the oil reservoir.

The vacuum is maintained by the TRIVAC T through an integrated anti-

suckback valve (1/3) which is controlled via oil pressure. During operation of

the TRIVAC T a control piston (3/2) remains sealed against a spring (3/1) by

the oil pressure. The valve disk (3/5) of the anti-suckback valve is held at the

lower position by its own weight (valve open).

When the pump stops (because of a failure or it has been switched off), the oil

pressure drops rapidly and the spring moves the control piston in the other

directions and opens a connection between the oil case and the anti-suckback

valve. The anti-suckback valve will be closed by the higher pressure from the

oil case and pressed against the sealing surface of the inlet port. The pressure

difference between the inlet port and the oil case holds the valve in position

and protects the recipient against venting. This effectively prevents the back

streaming of the oil or oil vapours. The anti-suckback valve (1/3) operates in-

dependently of the operation of the pump, i.e. also with gas ballast.

For a proper function of the anti-suckback valve the pressure in the inlet port

should be lower than 800 mbar.

Fig. 2 Schematic of the lubricating system

1Bearings

2Non-return valve

3Pump chamber of TRIVAC

4Oil reservoir

5Oil pump

300507907_002_C2 -05/2019 - © Leybold 9

1.2 Lubricants

The standard TRIVAC® T pumps are ready for operation with mineral oil.

In case of operation of a TRIVAC® T we instruct our vacuum pump oil LVO100

or LVO 108.

LVO 108 can be used only in China mainland.

Use only the kind of oil specified by Leybold.

1.3 Supplied Equipment

All the pumps are equipped with motors.

For pumps with single-phase AC motor are supplied ready to operate with

switch, built-in thermal motor protection switch, mains cable (approx. 1.5 m)

and mains plug.

For pumps with three-phase AC motor, the switch, motor protection switch,

mains cable etc. are not included.

The equipment supplied with the TRIVAC® D4/8T pump includes:

Pump with motor,

1 centering ring,

1 centering ring with dirt trap,

2 clamping rings DN 16 KF,

1 bottle of 1L oil,

Operating Instructions

Spare Parts List

Description

NOTICE

1Spring

2Control piston

3Anti-suckback piston

4Valve seat

5Valve disc

6Inlet port

Fig. 3 Part section of anti-suckback valve

Pump stop Pump running

LVO100 oil Parts No.

1L L100 01

5L L100 05

20L L100 20

208L L100 99

LVO108 Oil Parts No.

1L L108 01

5L L108 05

20L L108 20

208L L108 99

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The equipment supplied with the TRIVAC® D16/30T pump includes:

Pump with motor,

1 centering ring,

1 centering ring with dirt trap,

2 clamping rings DN 25 KF,

2 bottle of 1L oil,

Operating Instructions

Spare Parts List

For protection during shipment, the connection ports are each blanked off by

rubber diaphragms and supporting rings.

1.4 Accessories

Part No.

Oil drain tap 190 90

For D4/8T

Exhaust filter AF8 DN16KF 190 50

Replacement filter element FE8 for AF8 (pack of 5) ES190 80

Condensate trap AK8 DN16KF 190 60

Exhaust filter AF4-8 DN16KF 189 06

Replacement filter element FE4-8 for AF4-8189 71

Condensate separator AK4-8 DN16KF 188 06

For D16/30T

Exhaust filter AF25 DN25KF 190 53

Replacement filter element FE25 for AF25 (pack of 5) ES190 83

Condensate trap AK25 DN25KF 190 63

Exhaust filter AF16-25 DN25KF 189 11

Replacement filter element FE16-25 for AF16-25 189 72

Condensate separator AK16-25 DN25KF 188 11

Connection components required to connect the exhaust filter and the

condensate separators in each case:

For D4/8T

1 Pipe bend, DN16KF 184 36

1 Centering ring with O-Ring, DN16KF 182 06

1 Clamping ring, DN16KF 183 41

For D16/30T

1 Pipe bend, DN25KF 184 37

1 Centering ring with O-Ring, DN25KF 182 07

1 Clamping ring, DN25KF 183 42

Remarks: Any other request about accessories, please contact us.

Description

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