Edwards C100-01-340 Manuale utente

C105-11–880

Issue D Original

Instruction Manual

Bellows, Flexible Pipelines

and Braided Flexible Pipelines

This page has been intentionally left blank.

Edwards and the Edwards logo are trade marks of Edwards Limited.

Contents

C105-11–880 Issue D

Contents

Section Page

1 INTRODUCTION ....................................................................................1

1.1 Scope and definitions ................................................................................................... 1

1.2 Description ................................................................................................................ 1

1.2.1 Bellows .................................................................................................................... 1

1.2.2 Flexible pipelines ........................................................................................................1

1.2.3 Braided flexible pipelines .............................................................................................. 2

2 TECHNICAL DATA .................................................................................3

2.1 Bellows .................................................................................................................... 3

2.2 Flexible pipelines ........................................................................................................ 4

2.3 Braided flexible pipelines .............................................................................................. 4

3 INSTALLATION .....................................................................................5

3.1 General .................................................................................................................... 5

3.2 Bellows .................................................................................................................... 5

3.3 Flexible pipelines ........................................................................................................ 5

3.4 Braided flexible pipelines .............................................................................................. 5

4 STORAGE AND DISPOSAL .........................................................................7

4.1 Storage .................................................................................................................... 7

4.2 Disposal ....................................................................................................................7

For return of equipment, complete the HS Forms at the end of this manual.

CG/11/10

C105-11–880 Issue D

Edwards and the Edwards logo are trade marks of Edwards Limited.

Contents

Illustrations

Figure Page

1 A flexible pipeline formed into a tight bend ........................................................................ 2

Tables

Table Page

1 Technical data: bellows ................................................................................................ 3

2 Technical data: flexible pipelines ..................................................................................... 4

3 Technical data: Braided flexible pipelines .......................................................................... 4

Associated publications

Publication title Publication number

Vacuum pump and vacuum system safety P300–20–000

Edwards and the Edwards logo are trade marks of Edwards Limited.

INTRODUCTION

C105-11–880 Issue D

1 INTRODUCTION

1.1 Scope and definitions

This manual provides installation instructions for the Edwards range of bellows, flexible pipelines and braided flexible

pipelines. The Item Numbers for the products are listed in Section 2. You must use the bellows, flexible pipelines and

braided flexible pipelines as specified in this manual.

Read this manual before you install the bellows, flexible pipelines and braided flexible pipelines. Important safety

information is highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of

WARNINGS and CAUTIONS is defined below.

CAUTION

Cautions are given where failure to observe the instruction could result in damage to the equipment, associated

equipment and process.

The units used throughout this manual conform to the SI international system of units of measurement.

1.2 Description

1.2.1 Bellows

Note: To install bellows safely, you must follow the guidelines given in Section 3.2.

Bellows are short, thin-walled components with deep convolutions. They are used to reduce the transfer of vibration

from a pump to a vacuum system.

1.2.2 Flexible pipelines

Note: To install flexible pipelines safely, you must follow the guidelines given in Section 3.3.

Flexible pipelines have a thicker wall section and shallower convolutions than bellows. Flexible pipelines provide a

convenient method of connecting vacuum system components and help to compensate for misalignment or small

movements in rigid vacuum pipelines. Flexible pipelines can be formed into relatively sharp bends and will hold their

position, as shown in Figure 1; minimum bend radii do not apply.

Flexible pipelines are intended for installation in static systems. They are not suitable for repeated flexing. This could

cause fatigue failure.

You must not use flexible pipelines on dry pump exhausts.

WARNING

Warnings are given where failure to observe the instruction could result in injury or death to

people.

C105-11–880 Issue D

Edwards and the Edwards logo are trade marks of Edwards Limited.

INTRODUCTION

Figure 1 - A flexible pipeline formed into a tight bend

1.2.3 Braided flexible pipelines

Note: To install braided flexible pipelines safely, you must follow the guidelines given in Section 3.4.

Braided flexible pipelines have an outer protective layer of woven stainless steel braid. They are suitable for use as

exhaust pipelines on Edwards dry pumps and other applications where there is significant gas pulsation or the

possibility of high gas pressures.

Braided flexible pipelines are intended for installation in static systems. They are not suitable for repeated flexing.

This could cause fatigue failure.

Edwards and the Edwards logo are trade marks of Edwards Limited.

TECHNICAL DATA

C105-11–880 Issue D

2 TECHNICAL DATA

2.1 Bellows

* With bellows in a straight line with both ends rigidly constrained

Table 1 - Technical data: bellows

Flange size Length (mm) Item Number Maximum pressure *

Bar gauge Pa

DN16CF 110 C100-01-340 0.2 1.2 x 105

DN40CF 160 C100-05-340 0.2 1.2 x 105

DN63CF 250 C100-07-540 1.0 2.0 x 105

DN100CF 250 C100-09-540 1.0 2.0 x 105

DN160CF 270 C100-11-540 1.0 2.0 x 105

DN200CF 300 C100-12-540 1.0 2.0 x 105

NW10 123 C105-11-670 0.2 1.2 x 105

NW16 123 C105-12-670 0.2 1.2 x 105

NW25 123 C105-14-670 0.2 1.2 x 105

NW40 123 C105-16-670 0.2 1.2 x 105

NW50 123 C105-17-670 0.2 1.2 x 105

ISO63 127 C100-07-670 1.0 2.0 x 105

ISO100 127 C100-09-670 1.0 2.0 x 105

ISO160 220 C100-11-670 1.0 2.0 x 105

ISO200 220 C100-12-670 1.0 2.0 x 105

ISO250 220 C100-13-670 1.0 2.0 x 105

C105-11–880 Issue D

Edwards and the Edwards logo are trade marks of Edwards Limited.

TECHNICAL DATA

2.2 Flexible pipelines

2.3 Braided flexible pipelines

Table 2 - Technical data: flexible pipelines

Flange size Item Number Maximum pressure Minimum bend radius

(mm)

250mm 500mm 750mm 1000mm Bar gauge Pa Static Dynamic

DN16CF C100-01-330 C100-01-331 C100-01-332 C100-01-333 2. 5 3.5 x 10530 130

DN40CF C100-05-330 C100-05-331 C100-05-332 C100-05-333 1. 2 2.2 x 10580 260

DN63CF C100-07-530 C100-07-531 C100-07-532 C100-07-533 0.6 1.6 x 105140 360

DN100CF C100-09-530 C100-09-531 C100-09-532 C100-09-533 0.5 1.5 x 105200 500

NW10 C105-11-285 C105-11-286 C105-11-300 C105-11-287 3.0 4.0 x 10530 100

NW16 C105-12-285 C105-12-286 C105-12-300 C105-12-287 2.5 3.5 x 10530 130

NW25 C105-14-285 C105-14-286 C105-14-300 C105-14-287 1.8 2.8 x 10550 210

NW40 C105-16-285 C105-16-286 C105-16-300 C105-16-287 1.2 2.2 x 10580 260

NW50 C105-17-285 C105-17-286 C105-17-300 C105-17-287 0.6 1.6 x 105100 300

ISO63 C100-07-285 C100-07-286 C100- 07-288 C100-07-287 0.6 1.6 x 105140 360

ISO100 C100-09-285 C100-09-286 C100-09-288 C100-09-287 0.5 1.5 x 105200 500

Table 3 - Technical data: Braided flexible pipelines

Flange size Item Number Maximum pressure Minimum bend radius

(mm)

250mm 500mm 750mm 1000mm Bar gauge Pa Static Dynamic

NW10 - - - C105-11-288 - 10 1.1 x 10630

NW16 - - - C105-12-288 - 10 1.1 x 10630

NW25 C105-14-294 C105-14-295 C105-14-296 C105-14-298 C105-14-297 10 1.1 x 10650

NW40 C105-16-294 C105-16-295 C105-16-296 C105-16-298 C105-16-297 10 1.1 x 10680

NW50 C105-17-294 C105-17-295 C105-17-296 C105-17-298 C105-17-297 10 1.1 x 106100

Edwards and the Edwards logo are trade marks of Edwards Limited.

INSTALLATION

C105-11–880 Issue D

3 INSTALLATION

3.1 General

We recommend that you use only Edwards flexible pipelines with other Edwards vacuum products. Bellows, flexible

pipelines and braided flexible pipelines are available in different lengths and flange sizes to suit your installation (see

Section 2).

3.2 Bellows

Always install bellows in a straight line with both ends rigidly constrained. When installed correctly, the bellows can

withstand a small positive internal pressure, as specified in Section 2. Do not use bellows on dry pump exhausts.

3.3 Flexible pipelines

When you install a flexible pipeline, use the shortest possible length and avoid unnecessary bends. Do not use flexible

pipelines on dry pump exhausts.

3.4 Braided flexible pipelines

When you install a braided flexible pipeline, make sure that you observe the minimum bend radius data in Section 2.

If you do not, the braid will become loose and will no longer support the internal flexible pipeline. This may result

in fracture of the pipeline due to fatigue or overpressure failure.

WARNING

Use the correct flexible component for your application. If you do not, a pressure or fatigue failure

could cause the component to leak and release dangerous process substances to atmosphere.

C105-11–880 Issue D

Edwards and the Edwards logo are trade marks of Edwards Limited.

This page has been intentionally left blank.

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