Instruction manual
High Throughput Diffusion Pumps
iv
DRAFT 12/23/04
List of Figures
Figure Caption Page
1 HS-20 Diffusion Pump . . . . . . . . . . . . . . . . . . 5
2 HS-16 Speed and Throughput Curves, 8.1 kW 8
3 HS-20 Speed and Throughput Curves . . . . . . 8
4 HS-32 Speed and Throughput Curves . . . . . . 8
5 NHS-35 Speed and Throughput Curves . . . . . 8
6 HS-16 Outline with ASA Flanges . . . . . . . . . 9
7 HS-20 Outline with ASA Flanges . . . . . . . . 10
8 HS-32 Outline with ASA Flanges . . . . . . . . 11
9 NHS-35 Outline with ASA Flanges. . . . . . . 12
10 Cooling Water Connections . . . . . . . . . . . . . 15
11 HS-16 200/240/400/430/440/480 V Wiring 19
12 HS-16 415 V Wiring . . . . . . . . . . . . . . . . . 20
13 HS-20 200/240/400/430/480 V Wiring . . . 21
14 HS-20 415 V Wiring . . . . . . . . . . . . . . . . . 22
15 HS-32 200 V Wiring . . . . . . . . . . . . . . . . . 23
16 HS-32 240 V Wiring . . . . . . . . . . . . . . . . . 24
17 HS-32 460 V Wiring . . . . . . . . . . . . . . . . . 25
18 HS-32 415 V Wiring . . . . . . . . . . . . . . . . . 26
19 HS-32 480 V Wiring . . . . . . . . . . . . . . . . . 27
20 NHS-35 240/400/440 V Wiring . . . . . . . . . 28
21 NHS-35 415 V Wiring . . . . . . . . . . . . . . . . 29
22 NHS-35 480 V Wiring . . . . . . . . . . . . . . . . 30
23 Sight Glass Assembly . . . . . . . . . . . . . . . . . . 33
24 Cold Cap Assembly . . . . . . . . . . . . . . . . . . 38
25 HS-16 Jet Assembly . . . . . . . . . . . . . . . . . . . 39
26 HS-20 Jet Assembly . . . . . . . . . . . . . . . . . . . 40
27 Jet Coupling Detail. . . . . . . . . . . . . . . . . . . 41
28 HS-32 Jet Assembly . . . . . . . . . . . . . . . . . . . 42
29 NHS-35 Jet Assembly. . . . . . . . . . . . . . . . . . 44
30 Heater Element Assembly . . . . . . . . . . . . . . 45
List of Tables
Table Title Page
1 General Hazards . . . . . . . . . . . . . . . . . . . . . . 1
2 Explosive Conditions. . . . . . . . . . . . . . . . . . . 2
3 Pressurization Hazards . . . . . . . . . . . . . . . . . 3
4 Operating Specifications . . . . . . . . . . . . . . . . 6
5 HS-16: Dimensions and Weights. . . . . . . . . . 9
6 HS-16 Flange Dimensions. . . . . . . . . . . . . . . 9
7 HS-20: Dimensions and Weights. . . . . . . . . 10
8 HS-20 Flange Dimensions. . . . . . . . . . . . . . 10
9 HS-32: Dimensions and Weights. . . . . . . . . 11
10 HS-32 Flange Dimensions. . . . . . . . . . . . . . 11
11 NHS-35: Dimensions and Weights . . . . . . . 12
12 NHS-35 Flange Dimensions . . . . . . . . . . . . 12
13 Wiring Diagram Locations . . . . . . . . . . . . . 17
14 Thermal Cutout Temperatures . . . . . . . . . . . 18
15 Troubleshooting Guide . . . . . . . . . . . . . . . . 47
16 HS-16 Replacement Parts . . . . . . . . . . . . . . 48
17 HS-20 Replacement Parts . . . . . . . . . . . . . . 49
18 HS-32 Replacement Parts . . . . . . . . . . . . . . 50
19 NHS-35 Replacement Parts . . . . . . . . . . . . . 51










