Contents

Introduction

Why PIAB LabVacs? ................................................................2

Common applications for PIAB Lab Vacs ...................................2

Principle of PIAB Vacuum Pumps..............................................3

A few technical terms related to vacuum...................................4

Selection Guide

Quick guide............................................................................5

Complete selection guide ........................................................6

Resistance to chemicals and solvents .......................................8

Compressed air recommendations..........................................10

Dimensioned Drawings

..........................................................................................11

Accessories

Vacustat ..............................................................................12

Regulator kit ........................................................................12

Vacuum filter........................................................................12

Retort rod ............................................................................13

Silencer kit...........................................................................13

Standard accessories............................................................14

Ball valve .............................................................................15

T-piece ................................................................................15

Injection valve ......................................................................15

Vacuum distributor................................................................15

Maintenance & Warranty

..........................................................................................16

Tables

..........................................................................................17

The Periodic System

..........................................................................................18

Lab Vacs 1

Lab Vacs

Art no 01 00 602GB - PIAB Promotion 0401

Why PIAB Lab Vac?

• Free from back suction of water – No risk that your valuablesamples are destroyed.

• No service required – You can concentrate on your research, in-stead of repairing broken vacuum pumps.

• Low sound level – The constant noise from a water jet or an elec-tric pump can make anyone tired.

• Economical – Unbeatable performance in relation to the price.• Adjustable vacuum level – Set the vacuum level you require, and

save energy at the same time.

• Easy to install – One hose to connect. Ready!• Always close – Through our large distributor network around the

world, we are always close to you if you need assistance or if youwant to buy more.

• 5 year warranty – Proves the high quality.

2 Lab Vacs

Introduction

PIAB Lab Vacs are used frequently in the rotary evapora-tion process.

Vacuum filtration is a common application for PIAB LabVacs. They are also used for degassing solvents for HPLCand for drying gels.

• Rotary evaporation• Vacuum filtration

• Degassing• Gel drying

Common applications for PIAB Lab Vacs

Principle of PIAB Vacuum Pumps

PIAB vacuum pumps are multi-stage ejectors. Energy is supplied bycompressed gas, usually compressed air at a pressure of between 0.4and 0.6 MPa. The compressed air should be dry and filtered. Themulti-stage ejector uses the energy in the compressed air more effi-ciently than a single-stage ejector, and thus consumes much less en-ergy. PIAB multi-stage ejectors are characterized by high vacuum flowsand high vacuum levels. One way of achieving further energy savings is toemploy a Vacustat.

Benefit of the PIAB VacustatWhen vacuum is employed, the full capacity of the pump is seldom used.The traditional vacuum sources, i.e. electric pumps and water ejectors,are not suitable for intermittent operation. Instead of running only inter-mittently in order to maintain the required vacuum level, these vacuumsources must be run continuously. This is uneconomical, since it resultsin high energy consumption or waste of large quantities of drinking waterif a water ejector is used.

However, PIAB compressed air driven vacuum pumps are designed forintermittent operation. When the required vacuum has been reached,the Vacustat enables the pumps to be run only to maintain the presetvacuum level. For technical specifications of the Vacustat, see page 12.

Example of a vacuum system with PIAB Lab Vacs

Lab Vacs 3

Introduction

PIAB vacuum pumps use compressed air fortheir energy supply (1). When compressed airflows through the pump nozzles (2), the jet en-trains air. “Suction” is generated at the open-ings to the various stages (3). This creates asub-atmospheric pressure/vacuum (4).

LAB VAC

1

2

3

4

5

6

Exhaust

Compressed air

Vacuum

Vacuum

Vacuum

Exhaust

1. PIAB Lab Vac

2. PIAB Vacustat

3. Regulator

4. Double silencer (alternate exhaust)

5. Vacuum filter

6. Vacuum valves

A few technical terms related to vacuum

Atmosphere and atmospheric pressurePlanet Earth is surrounded by a layer of air which is tens of kilometresthick. This mass of air is attracted to the surface of the Earth and createsa pressure known as atmospheric pressure. A column of atmospheric airwith a cross-sectional area of 1 m2 has a mass of about 10,000 kg. At-mospheric pressure at sea level is 101.3 kPa (1013 mbar). The higherup we are above sea level, the thinner will be the air and the lower will bethe atmospheric pressure. Up to 2,000 m above sea level, the atmo-spheric pressure decreases at the rate of about 1% per 100 m, and atthe top of Mount Everest (8848 m), the atmospheric pressure is only33 kPa (330 mbar). See Table 2 on page 17.

Significance of atmospheric pressurein the laboratoryLaboratory personnel are well aware of the significance of atmosphericpressure, and they put it to good use. The lower the atmospheric pres-sure, the lower the boiling point of liquids. The solubility of gases in liq-uids also decreases with decreasing atmospheric pressure. The lowerthe absolute pressure (the higher the vacuum), the more of a gas dis-solved in a liquid will be released. Finally, the flow through narrow pas-sages, e.g. the flow of a liquid through a filter, is affected by the pressuredifferential between the filter inlet and outlet. Low pressure (vacuum) atthe filter outlet and atmospheric pressure at the filter inlet will acceleratethe filtration process.

Vacuum and vacuum levelVacuum is defined as a space devoid of matter. If the gas (usually air) isevacuated from an enclosed space, a sub-atmospheric pressure will begenerated. The vacuum level is a measure of this sub-atmospheric pres-sure. At absolute vacuum, the pressure is zero, which is the basis for theabsolute pressure concept. In laboratory work, pressures are almost ex-clusively expressed as absolute pressure, since sub-atmospheric pres-sure is of interest only in exceptional cases. To avoid misunderstandings,the vacuum levels are expressed in this catalogue as absolute pressures.This means that the prevailing (ambient) atmospheric pressure must beknown if the sub-atmospheric pressure is to be determined. See also Ta-ble 3 on page 17 for further information on how the altitude above sealevel affects the sub-atmospheric pressure.

Vacuum flowsVacuum flow is the amount of air per unit of time that is transported at acertain vacuum level. Vacuum flows and air consumption are defined inthis catalogue as volume of air at n.t.p. (normal temperature and pres-sure; sometimes also referred to as standard temperature and pressure,s.t.p.) per unit of time. Air at n.t.p. is air at certain standard atmosphericconditions (pressure of 101.3 kPa or 1013 mbar, 65% RH, 293°K). Thisis indicated by the prefix [N] to the unit of flow. For comparison with otherways of specifying air flows, see Table 4 on page 17.

4 Lab Vacs

Introduction

-100

-50

0

50

100

0 0,2 0,4 0,6 0,8 1

Boiling point of some liquids as a functionof ambient pressure.

Absolute pressure Atm

— Water ---- Ethanol - – - Diethyl ether

Boi

ling

poin

t°C

0

1

2

3

4

0 0,2 0,4 0,6 0,8 1

0

0,01

0,02

0,03

0,04

Solubility of some gases in water (at 20°C)as a function of ambient pressure.

Sol

ubili

tyof

air

g/l

Sol

ubili

tyof

CO

2g/

l

Absolute pressure Atm

— CO2 ---- Air

Lab Vacs 5

Selection Guide

Quick guide for generallaboratory applications

LVX 10 for smaller applications which are not so aggressive andwhere you are satisfied with a vacuum-level of 70 mbar.Choose between EPDM and Viton as seal material. Maxi-mum flow is 3,7 m³/h.

LVH 40 for applications where you need a better vacuum andgood chemical resistance. The ultimate vacuum is15 mbar and the baseplate is made of PPS. Choose be-tween EPDM, Viton and KalRezÒ as seal material. Maxi-mum flow is 9,0 m³/h.

LVH 80 for the most demanding applications. With an ultimatevacuum of 5 mbar and a maximum flow of 13 m³/h, it isthe most flexible choice for covering almost any labora-tory application. Choose between EPDM, Viton andKalRez® as seal material.

Order the versions with KalRez® – seals for out-standing chemical resistance.

STING X40 Made entirely of PTFE which will withstand nearly anychemicals. An ultimate vacuum of 60 mbar and a maxi-mum flow of 3,6 m³/h.

All PIAB vacuum pumps for lab use caneasily be fitted with PIAB’s energy-savingVacustat, which switches the pump offwhen the set vacuum level has beenreached.

Technical DataModel Max

vacuumMax flow Operating

temperatureNoiselevel

Weight Material Article numbermbar m3/h Nl/s °C dBA kg EPDM Viton KALREZ

LVX5 70 1.9 0.5 -20–80 62—66* 0.6 PA/POM 32 40 004E 32 40 004V —LVX10 70 3.7 1.0 -20–80 62—66* 0.6 PA/POM 32 40 005E 32 40 005V —LVX20 70 7.4 2.0 -20–80 62—66* 0.6 PA/POM 32 40 006E 32 40 006V —LVX10L 75 3.6 1.0 -20–80 62—66* 0.6 PA/POM 32 40 039E 32 40 039V —LVX20L 75 7.2 2.0 -20–80 62—66* 0.6 PA/POM 32 40 040E 32 40 040V —LVX40 50 9.4 2.6 -20–80 62—66* 1.0 PPS 01 00 767 01 00 768 —LVX80 50 13.0 3.6 -20–80 62—66* 1.0 PPS 01 00 769 01 00 770 —LVH40 15 9.0 2.5 -20–80 62—66* 1.0 PPS 01 00 771 01 00 772 01 03 684LVH80 5 13.0 3.6 -20–80 62—66 1.2 PPS 01 02 494 01 02 495 01 03 685

G Thread NPT ThreadSTING X40 60 3.6 1.0 -160°C–200°C 82—86* 0.5 Teflon® 01 00 017 01 00 018

*The noise level can be reduced with a silencer kit (art. no. 32 40 025), see page 13.

6 Lab Vacs

Selection Guide

LVX40, LVH40

Complete Selection guide

Which pump is best suited for myapplication?

1. What is the vacuum level needed?See the table on page 9 for the vacuum level at a boilingpoint of 40°C for a number of common solvents. A commonvacuum level for vacuum filtration is 100 mbar. All Lab Vacscan generate better than 100 mbar.

2. What flow must the pump deliver?See the table on page 7 for flow at different pressures andfor evacuation times.

3. Can the pump handle my chemicals?Should I have EPDM or Viton® or KALREZ® seals?See pages 8 and 9.

4. Do I need a continuous vacuum flow?Or is it enough for the pump to maintain a certain vacuum le-vel? Read about the Vacustat on pages 3 and 12.

5. Does my compressed air system havesufficient capacity?See the table on page 7 for recommended supply pressureand page 10 for other information on compressed air.

GeneralAll Lab Vacs with 40—80 in their designations (apart from theSTING X40) are made of PPS (polyphenylene sulphide), withthe exception of the vacuum meter, flap valves and gaskets.They are capable of withstanding all organic solvents at roomtemperature and most acids and bases. See the resistancetables on pages 8 and 9.

LVX5—20, LVX10—20L and LVX40—80are suitable for use if a vacuum level of 50— 75 mbar is suffici-ent, e.g. for vacuum filtration and gel drying.

LVX40—80are pumps designed for high flow rates, and are suitable forevacuating large volumes in a short space of time.

LVH40—80are designed for higher vacuum that may be necessary, for in-stance, in certain evaporation processes.

STING X40 (Solid Teflon® Internally No Gaskets)is made entirely of Teflon®. It is intended for the most deman-ding chemicals, and has no gaskets (see table below).

LVX5—20, LVX10L—20L

Lab Vacs 7

Selection Guide

STING X40

Size – Vacuum performanceFeed pressure (MPa), air consumption (Nl/s), vacuum flow (Nl/s), for different vacuum levels, mbarabsolute pressure

Model Recom.feed

pressure

Airconsumption

Vacuum levels, mbar absolute pressureVacuum flow Nl/s

MPa Nl/s 1013 900 800 700 600 500 400 300 200 100 50 10

LVX5 0.5 0.36 0.52 0.3 0.15 0.13 0.11 0.09 0.07 0.05 0.02 0.01 — —

LVX10 0.5 0.72 1.03 0.6 0.3 0.26 0.23 0.18 0.14 0.09 0.04 0.02 — —

LVX20 0.5 1.44 2.05 1.2 0.58 0.52 0.45 0.36 0.29 0.19 0.08 0.03 — —

LVX10L 0.4 0.8 1 0.62 0.29 0.23 0.2 0.16 0.12 0.08 0.04 0.01 — —

LVX20L 0.4 1.6 2 1.25 0.58 0.45 0.4 0.32 0.25 0.16 0.07 0.25 — —

LVX40 0.6 2.5 2.6 2.1 1.4 1.0 0.58 0.45 0.35 0.25 0.19 0.07 0.03 —

LVX80 0.6 5.0 3.6 2.9 2.0 1.2 1.15 0.9 0.7 0.5 0.38 0.14 0.05 —

LVH40 0.6 2.6 2.5 1.8 1.3 0.7 0.53 0.35 0.24 0.16 0.12 0.06 0.02 —

LVH80 0.6 7.6 3.4 2.5 2.2 1.8 1.75 1.3 0.9 0.65 0.45 0.13 0.06 0.002

STING X40 0.5 2.1 1 0.89 0.79 0.69 0.58 0.48 0.38 0.28 0.18 0.06 — —

Evacuation time (s/l) for respective vacuum levels (mbar absolute pressure) at recommended feedpressure

Model Vacuum levels, mbar absolute pressure

900 800 700 600 500 400 300 200 100 50 10

LVX5 0.26 0.8 1.52 2.4 3.6 4.92 6.9 10.2 19.2 — —

LVX10 0.13 0.4 0.76 1.2 1.8 2.46 3.45 5.1 9.6 — —

LVX20 0.06 0.2 0.38 0.6 0.9 1.23 1.72 2.55 4.8 — —

LVX10L 0.14 0.36 0.76 1.28 1.88 2.64 3.66 5.8 10.2 — —

LVX20L 0.07 0.18 0.38 0.64 0.94 1.32 1.83 2.9 5.1 — —

LVX40 0.04 0.11 0.16 0.32 0.55 0.82 1.22 1.72 2.85 4.3 —

LVX80 0.02 0.06 0.12 0.21 0.32 0.46 0.65 0.90 1.42 2.2 —

LVH40 0.04 0.09 0.18 0.41 0.71 1.09 1.65 2.48 3.91 6.01 —

LVH80 0.03 0.07 0.11 0.17 0.25 0.35 0.52 0.72 1.56 2.5 6.5

STING X40 0.06 0.16 0.28 0.43 0.62 0.85 1.15 1.58 2.6 — —

LVX 80, LVH 80

Vacuum conceptsIn this catalogue, the vacuum flow is specified as the volumetricflow of air, converted to normal temperature and pressure condi-tions. Normal temperature and pressure are a temperature of20°C and a barometric pressure of 1013 mbar. The unit is Nl/s.

Example:10 litres of expanded air at 506 mbar corresponds to 5 Nl (litresat normal temperature and pressure conditions - 1013 mbar).

Evacuation time is the time necessary to achieve a certain vac-uum level in an enclosed system. In this catalogue, the volumeis represented by 1 litre and the time is measured in seconds.

1013 mbar = 760 mm Hg1 mbar = 0.750 mm Hg1 mm Hg = 1.333 mbar

Resistance to chemicals and solvents

PIAB Lab Vacs are designed to withstand most substances. However, the various plastic and rubber materials used forthe pumps have different mechanical properties and different resistances to chemicals. A brief description of the materi-als used for Lab Vacs is outlined below.

It is very simple to change the flap valves and gaskets in the Lab Vacs. If these are subjected to chemicals they cannotwithstand, they can easily be changed. It is often sufficient to let the pump draw air for a minute or two to enable any de-formed flaps to resume their original shape.

Plastics used in PIAB Lab Vacs• EPDM. Highly elastic synthetic (ethylene-propylene) rubber. Most Lab Vacs are supplied with EPDM flap valves

and gaskets.

• FPM (fluorocarbon rubber). Very good resistance to chemicals and heat. Available as an alternative to EPDM.PIAB employs VITON®.

• KALREZ® Outstanding chemical and temperature resistance. Available as an alternative to EPDM and Viton in thesizes 40 and 80.

• PA (polyamide, e.g. Nylon®). PA6 and PA66 are the usual grades. The pump casings of LVX5–20 andLVX10L–20L are made of PA66.

• POM (polyoxymethylene, e.g. Delrin® and Hostaform®). Also known as acetal. Good mechanical properties, andeasy to cast and machine. Used in the nozzle rows and bottom plates of LVX5–20 and LVX10L–20L.

• PPS (polyphenylene sulphide, e.g. Ryton® and Fortron®). Very strong and dimensionally rigid structural plastic.Can withstand all organic solvents, and most acids and bases at moderate temperatures. The LVX40–80 and theLVH40–80 include PPS only in the parts that are in contact with the vacuum side of the pump (except theflaps/gaskets and vacuum gauge).

• PE (polyethylene). Low price and good resistance to chemicals. Available in LD (Low Density, soft) and HD (HighDensity, hard) versions. Sintered PE is used, for instance, in the Lab Vac silencer.

• PP (polypropylene). Similar to PE but has better mechanical properties. Included in certain filters.• PTFE (polytetrafluorethylene, e.g. Teflon®). Superior resistance to chemicals.

8 Lab Vacs

Selection Guide

Model LVX/LVX_L5–20

LVH/LVX40–80

Recommended seal material

Material POM/PA66 PPS

Chemicals EPDM Viton® (FPM) KALREZ®

Acetone nitrile A A A U A

Ammonia U A A U A

Hydrofluoric acid U A U A A

NaOH A A A B A

Nitric acid U B A A A

Hydrochloric acid U A A A A

Sulphuric acid U A B A A

A = Recommended — little or no effectB = Minor to moderate effectC = Moderate to severe effectU = Not recommended

Lab Vacs 9

Selection Guide

Model LVX/LVLX5—20

LVH/LVX40—80

Recommended seal material Boilingpoint

Vacuumlevel

for boilingpoint at

Formula

Material POM/PA66 PPS

Solvents EPDM Viton®(FPM) KALREZ® °C 40 °Cmbar*

Acetic acid U A A B A 118 44 C2H402

Acetone A A A U A 56 556 C2H60

N-Amylalcohol A A A B A 137 11 C5H120

Benzene A A U A A 80 236 C6H6

N-Butanol A A B A A 118 25 C4H10O

Carbontetrachloride U A U A A 77 271 CCl4

Chlorobenzene U A U A A 132 36 C6H5Cl

Chloroform A A U A A 62 474 CHCl3

Cyclohexane A A U A A 81 235 C6H12

Diethyl ether B A U U A 35 >1013 C4H10O

Diisopropyl ether U A U U A 68 375 C6H14O

Dioxane B A B U A 101 107 C4H8O2

Dimethyl formamide (DMF) U A A U A 153 11 C3H7NO

Ethanol A A A A A 79 175 C2H6O

Ethyl acetat A A B U A 77 240 C6H802

Heptane A A U A A 98 120 C7H16

Hexane B A U A A 69 335 C6H14

Isoamyl alcohol A A A B A 129 14 C5H12O

Isopropyl alcohol U A A A A 82 137 C3H8O

Methanol B A A C A 65 337 CH4O

Methylenechloride C A B A A 40 >1013 CH2Cl2

Methyl ethyl ketone (MEK) C A A U A 80 243 C4H8O

Pentane B A U A A 36 >1013 C5H12

N-Propyl alcohol U A A A A 97 67 C3H8O

1,1,2,2-Tetrachloroethane C A U A A 146 35 C2H2Cl4

Tetrachloroethylene A A U A A 121 53 C2Cl4

Tetrahydrofurane (THF) A A B U A 67 357 C4H8O

Toluene C A U A A 111 77 C7H8

1,1,1-Trichloroethane C A U A A 74 300 C2H3Cl3

Trichloroethylene U A U A A 87 183 C2HCl3

Xylene A A U A A ~140 25 C8H10

*Absolute pressure

A = Recommended — little or no effectB = Minor to moderate effectC = Moderate to severe effectU = Not recommended

Compressed air recommendations

PIAB recommends filtered, oil-free compressed air for its multi-stageejectors.

Maximum particle size: 40 µMaximum particle concentration: 10 mg/m3 (atmospheric air)Maximum oil content: 1 mg/m3 (atmospheric air)

Compressed air supplyPIAB Lab Vac pumps are designed for a compressed air supply pressureof 4—6 bar (0.4—0.6 MPa).

To ensure that the supply pressure to the pumps will be correct, it is im-portant for the compressed air lines to be correctly sized.

Use at least the sizes specified in the table below.

Insufficient feed pressurePIAB Lab Vacs will not be damaged in case of insufficient feed pressure.What happens is that the flow decreases, and the maximum vacuumlevel decreases according to the table below:

10 Lab Vacs

Selection Guide

Pump Hose length

1 m 2 m 10 m

LVX5 Ø 2.6 Ø 3.0 Ø 4.1

LVX10 Ø 3.3 Ø 3.8 Ø 5.3

LVX20 Ø 4.3 Ø 4.9 Ø 6.7

LVX10L Ø 3.6 Ø 4.1 Ø 5.7

LVX20L Ø 4.6 Ø 5.3 Ø 7.4

LVX40 Ø 5.1 Ø 5.9 Ø 8.1

LVX80 Ø 6.6 Ø 7.6 Ø 10.5

LVH40 Ø 5.2 Ø 6.0 Ø 8.2

LVH80 Ø 6.8 Ø 7.8 Ø 10.7

Hose diameters in mm. The dimensions are calculated for a pressure drop of0.1 bar (0.01 MPa).

Feedpresure

MPa

Max vacuum level, mbar abs

LVX5—20 LVX10L—20L LVX40—80 LVH40 LVH80

0.5 — — 130 25 50

0.45 — — 150 90 80

0.4 130 75 350 270 300

0.35 280 150 520 420 500

0.3 450 400 650 550 600

Lab Vacs 11

Dimensioned Drawings

LVX5, LVX20, LVX10L, LVX20L

LVX40, LVX80, LVH40, LVH80

Holes for wall mounting.

STING X40

Connection config. 01 00 017 01 00 018

1. Compressed air G 3/8" NPT 3/8"

2. Vacuum G 3/8" NPT 3/8"

3. Exhaust G 3/8" NPT 3/8"

1. Compressed air G 1/4"2. Vacuum G 3/8"(2). Vacustat connection G1/8"3. Exhaust G 3/8"

A = 64 [2.52"] for LVX40,LVX80 and LVH40

A = 80 [3.15"] for LVH80

1. Compressed air G 1/4"2. Vacuum G 3/8"(2). Vacustat connection M53. Exhaust G 3/8"

12 Lab Vacs

Accessories

Vacuum filterRegulator kitVacustat

Vacustat

Regulator kit

Vacuum filter

54

54

7.8

10.8

Type Feedpressure

MPa

Maxair consumption

l/min

Material Workingtemperature

°C

Weight

g

Art no

Vacustat 0.2–0.7 500 POM, Al, NBR Pa 6, CuZn, SS -10–60 75 01 01 074

Regulator kit 0.85 1200 Zn, POM, PP, NBR 0–52 610 32 40 022

Vacuum filter, 0.3µ — — PP, paper -10–80 10 01 00 947

Vacuum filter, 0.3µ* — — PP, paper -10–80 10 01 00 949

* Delivered with natural rubber hose Ø 18/8, length 80 mm.

Lab Vacs 13

Accessories

Retort rod Silencer kit

Retort rodØ13

70

Ø6

M12

Silencer kit

The retort rod can be connected at the arrows.

Type Material Noise level-dBA

Weightg

Art no

Retort rod, Ø13 mm Acid-proof steel — 90 01 00 766

Silencer kit — 13 200 32 40 025

Parts included Art no

Silencer 1/2"–3/4" 32 16 003

JG straight adaptor female 1/2" 33 96 325

JG Nylon hose JG 15/12 33 99 932

Hose clamp 12-16 32 40 602

JG adaptor male 3/8" 33 90 514

Standard accessories

All Lab Vac pumps are delivered with necessary couplings, compressed air hose (length 2 m) and screws for wallmounting:

14 Lab Vacs

Accessories

P+ Ref. Accessory Pcs Art no Material

1 Hose clamp14-19 mm 2 32 40 621Acid-proof

steel

2 Rubber hoseID=8 mm, L=0.2 m 1 32 40 603 NBR

3 Tube to hose stemD 10 mm for hose ID 8 mm 2 33 92 598 POM

4 Hose reductionD 10-8 mm 1 33 92 092 POM

5 Polyurethane hoseAD/ID mm, 8/5.5, L=2 m 1 31 07 768 PUR

6 Straight adaptormale G 1/4" D8 1 33 90 182 POM

7 Straight adaptormale G 1/4" D10 1 33 90 190 POM

8 Straight adaptormale G 3/8" D10 1 33 90 191 POM

9 Tube to hose stemD12-1/2" 1 31 07 739 POM

10 Straight adaptormale G 3/8" D12 1 33 90 195 POM

11 Screw VA4 2 32 40 608 Stainlesssteel

12 Screw plug 2 32 40 609 —

13 Hexagon wrench no 4 1 32 14 601 —

14 Torx wrench no 7 1 32 14 602 —

Type Max pressureMPa

Vacuum level-kPa

Material Workingtemperature

°C

Weightg

Art no

Ball valve 1/4” 1.0 100 POM, NBR -25–75 25 32 40 600

T-piece 1/4” 1.0 100 POM -25–75 25 31 07 317

Injection valve 1.0 100 POM, NBR -25–75 50 32 40 027

Vacuum distributor 1.0 100 POM, NBR -25–75 110 32 40 026

Lab Vacs 15

Accessories

Ball valve T-piece Injection valve Vacuum distributor

Ball valve T-piece

Injection valve Vacuum distributor

Maintenance

The PIAB Lab Vacs are designed and manufactured to work with mini-mum service and maintenance. To ensure reliable operation for manyyears a few simple checks are, however, required. Below you will find asuggestion for maintenance intervals. Please note that the intervalsvary depending on operating environment, and therefore we advise youto build up your own experience.

Maintenance intervals

Daily• Check the feed pressure of the compressed air• Check pressure drop over the vacuum filter

Monthly• Wash vacuum filters

Annually• Dismantle the pump to clean and checkIn addition to these points, the compressed air system should be main-tained.

Warranties

• A 5-year warranty for pumps• A guarantee period of 1 year for accessories• The guarantee does not apply to filters or other wear parts

16 Lab Vacs

Maintenance and Warranty

Table 1. Pressure

Pa (N/m2) kPa bar at (kp/cm2) Torr psi (lbf/in2) inHg

1 Pa 1 0,001 0,00001 10,1972x10-6 7,50062x10-3 0,145038x10-3 0,3x10-3

1 kPa 1000 1 0,01 10,1972x10-3 7,50062 0,145038 0,3

1bar 100 000 100 1 1,01972 750,062 14,5038 30

1kp/cm2 98 066.5 98,0665 0,980665 1 735,559 14,2233 29,42

1 torr 133,322 0,133322 1,33322x10-3 1,35951x10-3 1 19,3368x10-3 0,04

1 psi 6 894,76 6,89476 68,9476x10-3 70,3069x10-3 51,7149 1 2,07

1 torr = 1 mmHg (0° C). 1 mm column of water = 9,81 Pa

Table 2. Negative pressure

Sea level Absolutevacuum

kPa 101,3 91,3 81,3 71,3 61,3 51,3 41,3 31,3 21,3 11,3 0

mbar 1013 913 813 713 613 513 413 313 213 113 0

Torr 760 685 610 535 460 385 310 235 160 85 0

-kPa* 0 10 20 30 40 50 60 70 80 90 101,3

-mmHg* 0 75 150 225 300 375 450 525 600 675 760

-inHg* 0 3 6 9 12 15 18 21 24 27 30

%vacuum 0 9,9 19,7 29,6 39,5 49,3 59,2 69,1 79 89 100

* At normal atmospheric pressure.

Table 3. Change in air pressure with height above sea level

The surrounding air pressure is the point of reference for most vacuum gauges.

Altitude Air pressure Available vacuum levels in -kPa at different altitudes

m kPa mbar mm Hg

0 101,3 1013,25 760 60,0 75,0 85,0 90,0 99,0

1000 89,46 894,6 671 49,4 64,5 74,5 79,5 88,5

2000 79,06 790,6 593 39,0 54,1 64,1 69,1 78,1

Table 4. Flows

Flow: volume per unit of time. Quantity designations: Q, q, = V/t (volume/time).SI-unit: cubic metres per second (m3/s). Common multiple units: litre/min., litre/s, m3/h.

m3/s m3/h l/min l/s ft3/min (scfm)*

1 3600 60000 1000 2118,9

0,28x10-3 1 16,6667 0,2778 0,5885

16,67x10-6 0,06 1 0,0167 0,035

1x10-3 3,6 60 1 2,1189

0,472x10-3 1,6992 28,32 0,4720 1

*1 ft = 0.305 m

Table 5. Weight

kg g oz lb

1 kg 1 1000 35,27 2,205

1 g 0,001 1 0,03527 0,002205

1 oz 0,02835 28,35 1 0,0625

1 lb 0,4536 453,6 16 1

Table 6. Temperature

Melting point of ice 0°C 32°F 273,15K

Boiling point of water at 101.3 kPa (14.7 psi) 100°C 212°F 373,15K

Absolute zero -273,15°C -459,67°F 0K

°F = 1.8(°C) + 32

Lab Vacs 17

Tables

Table 7. Force

1 N = 0,10197 kp

1 kp = 9,8066 N

1 N = 0,2248 lbf

1 lbf = 4,4482 N

18 Lab Vacs

The periodic system

Lab Vacs 19

20 Lab Vacs