Welch Vacuum 2047 Dryfast & Dryfast Ultra User Manual
Page 3
TABLE OF CONTENTS
Section Page
Section 01 - Safety Information
1.10
Caution:
to
prevent
injury
4
1.20 Caution: to reduce risk of electrical shock
4
1.30 Warning: to reduce risk of electrocution
5
1.40 Warning: to reduce risk of explosion or fi re
5
Section 02 - Installation
2.10
Environmental
conditions
6
2.11
Introduction
6
2.12
Unpacking
6
2.13
Pump
mounting
6
2.14
Pump
location 6
2.15
Discharge
provisions 7
2.16
Electrical
power
8
2.17
Advanced
Vapor
Management
(AVM)
8
2.18
Traps
8
2.19
The
care
of
a
liquid
trap
9
2.20
The
care
of
a
cold
trap
9
Section 03 - Operation
3.10 Starting a Welch DRY Vacuum Pump
10
3.11
Cleanliness
10
3.12
Leak
detection
10
3.13
Operating
pressure
range
10
3.14
The
effects
of
unwanted
vapor
10
3.15
Shutdown
procedure 10
Section 04 - Maintenance
4.10
General
maintenance
11
4.11
Diaphragm
removal
11
4.12
Installation
of
new
diaphragm
11
Section 05 - Application
5.10 Operation as a replacement for aspirators
12
5.20 Cross reference Welch DRY Pump to Water Aspirator 12
Section 06 - Specifi cations
6.10
Specifi
cation
Chart
13
Section 07 - Specifi cations
Warranty
14
Section 08 - Drawings
8.10
Dimensional
drawing 15
8.20 Exploded view and kit for 2034, 2037 & 2044
16
8.30 Exploded view and kit for 2014, 2032, 2042 & 2047
17
3