Issue C Original Instruction Manual

A505-71-880Issue C Original

Instruction Manual

Drystar® GV250/400 Exhaust Silencer

Drystar is a registered Trademark of Edwards.

Description Item Number

GV250/400 Exhaust Silencer A505-71-880

This page has been intentionally left blank.

© Edwards Limited 2009. All rights reserved. Page iEdwards and the Edwards logo are trademarks of Edwards Limited.

ContentsA505-71-880 Issue C

Contents

Section Page

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

1.1 Scope and definitions ................................................................................................... 11.2 Description ................................................................................................................ 1

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

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

3.1 Safety ...................................................................................................................... 53.2 Unpack and inspect ...................................................................................................... 53.3 Fit the Silencer ........................................................................................................... 63.4 Leak test the installation ............................................................................................... 6

4 MAINTENANCE ..................................................................................... 9

4.1 Safety ...................................................................................................................... 94.2 Maintenance operations ................................................................................................ 9

5 STORAGE AND DISPOSAL ....................................................................... 11

5.1 Storage ...................................................................................................................115.2 Disposal ...................................................................................................................11

RETURN OF EDWARDS EQUIPMENT

Illustrations

Figure Page1 Dimensions ................................................................................................................ 42 Fit the Silencer ........................................................................................................... 7

Tables

Table Page1 Checklist of items ........................................................................................................ 5

mv/8107/08/09

A505-71-880 Issue C

Page ii © Edwards Limited 2009. All rights reserved.Edwards and the Edwards logo are trademarks of Edwards Limited.

Associated publications

Associated publications

Publication title Publication NumberGV Dry Vacuum Pumps...................................................................................................A705–61–880GV Dry Vacuum Pumps ..................................................................................................A706–61–880

© Edwards Limited 2009. All rights reserved. Page 1Edwards and the Edwards logo are trademarks of Edwards Limited.

INTRO

DU

CTION

A505-71-880 Issue C

1 INTRODUCTION1.1 Scope and definitions

This manual provides installation, operation and maintenance instructions for the GV250/400 Exhaust Silencer, abbreviated to Silencer in the remainder of this manual. You must use the Silencer as specified in this manual.

Read this manual before you install and operate the Silencer. Important safety information is highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of WARNINGS and CAUTIONS is defined below.

CAUTIONCautions 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; where appropriate, US equivalent units of measurement are also given.

1.2 Description

When fitted, the Silencer attenuates exhaust pressure pulsations and reduces pump-induced resonances in your exhaust-extraction system.

The Silencer also traps condensates or dust in the exhaust gases; you can drain these condensates or dust from the Silencer.

WARNING

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

A505-71-880 Issue C

Page 2 © Edwards Limited 2009. All rights reserved.Edwards and the Edwards logo are trademarks of Edwards Limited.



TECHN

ICAL DATA

A505-71-880 Issue C

2 TECHNICAL DATAMass 35 kg, 77 lbs

Dimensions See Figure 1

Test pressure 10 bar absolute, 1 x 106 Pa

A505-71-880 Issue C


TECHN

ICAL DATA

Figure 1 - Dimensions

A Side view

B Front view

1. Silencer outlet: ISO63

2. Drain plug: 1/2 inch BSP

3. Pump inlet: ISO100

Electrical supply Units Pump type A B C D

380/400/415 V, 50 Hz mm GV250 366 621 1175 Ø250

GV400 414 621 1175 Ø250

200-220 V, 50/60 Hz mm GV250 366 621 1175 Ø250

GV400 404 621 1175 Ø250

230/460 V, 60 Hz inches GV250 14.4 24.5 46.3 Ø9.9

GV400 15.9 24.5 46.3 Ø9.9


INSTALLATIO

NA505-71-880 Issue C

3 INSTALLATION3.1 Safety

A suitably trained and supervised technician must install the Silencer.

Ensure that the installation technician is familiar with and complies with the safety procedures which relate to the products processed by the pumping system. Wear the appropriate safety-clothing when you come into contact with contaminated components. Dismantle and clean contaminated components inside a fume-cupboard.

If the GV pump has been in operation, vent and purge the process system, then shut down the GV pump and allow it to cool to a safe temperature before you start installation.

Disconnect the GV pump and the other components in the process system from the electrical supply so that they cannot be operated accidentally.

Use suitable lifting equipment to move the Silencer.

3.2 Unpack and inspect

Remove all packing materials and protective coverings and inspect the Silencer. If the Silencer is damaged, notify your supplier and the carrier in writing within three days; state the Item Number of the Silencer, together with your order number and the supplier’s invoice number. Retain all packing materials for inspection. Do not install and use the Silencer if it is damaged.

Check that you have received the items listed in Table 1. If any item is missing, notify your supplier in writing within three days. If the Silencer is not to be used immediately, store it in suitable conditions, as described in Section 4.1.

WARNING

Obey the safety instructions given below and take note of appropriate precautions. If you do not, you can cause injury to people and damage to equipment.

Table 1 - Checklist of items

Qty Description Check (√)

1 Exhaust Silencer □8 M8 bolts, nuts, plain and spring washers □1 ISO63 trapped ‘O’ ring □

A505-71-880 Issue C


INSTALLATIO

N

3.3 Fit the Silencer

Refer to Figure 2 and use the following procedure to fit the Silencer to the GV pumping system. During installation, take note of the recommendations included in the GV instruction manual.

1. If the GV pumping system has been used, purge it with air or nitrogen, then shut down the pumping system and allow it to cool to a safe temperature before you continue: refer to the shut-down procedure in the GV instruction manual.

2. Isolate the GV pump and other components in your process system from the electrical supply, so that they cannot be operated accidentally.

3. If the GV pumping system is already installed, undo and remove the four M8 x 50 hex-head bolts, nuts and washers (4 and 7) which secure your exhaust pipeline to the GV outlet (5), then disconnect your exhaust pipeline from the GV outlet.

4. If you have not installed the GV pumping system, remove the blanking plate from the GV outlet: refer to the GV instruction manual.

5. Attach suitable lifting equipment to the two lifting brackets (11), then use the lifting equipment to move the Silencer into position against the GV outlet (5).

6. Use four of the M8 x 50 bolts, nuts and washers (7 and 4) supplied with the Silencer (or those removed in Step 3), together with the trapped ‘O’ ring (6) supplied with the GV pumping system, to connect the Silencer inlet (8) to the GV outlet (5). Ensure that the Silencer (10) is vertical, as shown in Figure 2.

7. Use the ISO63 trapped ‘O’ ring (1) and the fourM8bolts, nuts and washers supplied with the Silencer to connect the Silencer outlet (2) to your exhaust-extraction system.

8. Ensure that the drain plug (9) is tight.

9. Disconnect your lifting equipment from the lifting brackets (11).

3.4 Leak test the installation

Leak test the system and seal any leaks found after you have installed the Silencer: refer to the Installation section of the GV pump instruction manual.

WARNING

When you install the Silencer and your exhaust-extraction system, ensure that you comply with the WARNINGs and CAUTIONs in the GV instruction manual. If you do not, you can cause injury to people and damage to the pumping system.

WARNING

Leak test the system after installation and seal any leaks found, to prevent the leakage of dangerous substances out of the system and leakage of air into the system.


INSTALLATIO

NA505-71-880 Issue C

Figure 2 - Fit the Silencer

1. Trapped ‘O’ ring (ISO63) 7. Bolt and washer

2. Silencer outlet 8. Silencer inlet

3. GV pump 9. Drain plug

4. Nut and washer (M8) 10. Silencer

5. GV outlet 11. Lifting bracket

6. Trapped ‘O’ ring (ISO63)

A505-71-880 Issue C




MAIN

TENAN

CEA505-71-880 Issue C

4 MAINTENANCE4.1 Safety

A suitably trained and supervised technician must maintain the Silencer.

Ensure that the maintenance technician is familiar with and complies with the safety procedures which relate to the products processed by the pumping system. Wear the appropriate safety-clothing when you come into contact with contaminated components. Dismantle and clean contaminated components inside a fume-cupboard.

Allow the GV pump to cool to a safe temperature before you start maintenance.

Isolate the GV pump and the other components in the process system from the electrical supply so that they cannot be operated accidentally.

4.2 Maintenance operations

Note: If you need to regularly drain condensates or dust from the Silencer, we recommend that you remove the drain plug and fit a suitable ball-valve to the drain port on the Silencer.

If there are heavy deposits in the Silencer, you may need to remove the Silencer from the pump and use a suitable cleaning solution to clean the Silencer.

Do the following checks when you maintain the GV pump:

1. Regularly inspect the Silencer and check that it is not corroded or damaged; if the Silencer is corroded or damaged, you must replace it.

2. Regularly check that the Silencer is securely fitted to the GV outlet and to your exhaust-extraction system; tighten the connections if necessary.

3. Refer to Figure 2. When necessary, drain any condensates or dust from the Silencer:

Place a suitable container under the drain plug (9), then undo and remove the drain plug (9) and allow any condensates or dust to drain out of the Silencer (10).

Apply suitable sealing compound to the threads of the drain plug (9), then refit and tighten the drain plug.

Dispose of the condensates or dust: refer to Section 4.

WARNING

Obey the safety instructions given below and take note of appropriate precautions. If you do not, you can cause injury to people and damage to equipment.

WARNING

Take care when you remove the drain plug. There may be back-pressure in the Silencer which could force condensates past the drain plug during removal.

A505-71-880 Issue C




STORAG

E AND

DISPO

SALA505-71-880 Issue C

5 STORAGE AND DISPOSAL5.1 Storage

Replace the protective packaging and store the Silencer in cool, dry conditions.

When required for use, install the Silencer as described in Section 3.

5.2 Disposal

Dispose of the Silencer safely in accordance with all local and national safety and environmental requirements.

Take particular care if the Silencer has been contaminated with dangerous process substances.

A505-71-880 Issue C



Documents

Issue C Original Instruction Manual