27. Vacuum Pumping Systems¶
Fig. 27.2 Vacuum Pumping System.
The vacuum pumping systems incorporated into a Gleeble thermal-mechanical testing system provide a controlled atmosphere resulting in minimal oxidation of a specimen during elevated temperature tests.
The Gleeble vacuum systems can be customized to provide either a rough vacuum, or high vacuum. Most options of Gleeble vacuum systems can also create an inert gas environment. Supplemented by external compressed inert gas, the vacuum system can remove the existing atmosphere within the vacuum tank then fill the vacuum tank with the inert gas. This backfill process is semi-automated and needs to be repeated any time the vacuum tank door is opened.
Gleeble vacuum systems are controlled, powered, and cooled, as needed, from the Gleeble system. All wire and hose connections come standard with each vacuum system.
27.1. 3000 Series Vacuum Pumping Systems¶
The Gleeble Vacuum Pumping Systems are designed to perform as an integral part of any Gleeble system. The typical vacuum system contains one diffusion vacuum pump and one rough vacuum pump. The entire unit is controlled from the Gleeble console. The lowest vacuum pressure achievable by the diffusion pump integrated into the 38045 and 38046 systems is 5 x 10-5 Torr. The rough vacuum pump, as part of the 38045 or 38046 systems, or 38050 Standalone Rough Pump can reach a lowest achievable vacuum pressure of 5 x 10-2 Torr. Once activated, the 38045 and 38046 Vacuum Pump systems can automatically transition from rough vacuum to high vacuum operation.
| Characteristic | Specification | Vacuum Pump System |
|---|---|---|
| Voltage Rating | 380/400 VAC | 38045 or 38050 |
| 460/480 VAC | 38046 or 38050 | |
| Roughing pump | 350 L/min (92.5 gal/min) | All systems |
| Diffusion pump | 1,250 L/min (330 gal/min) | 38045 or 38046 |
| Diffusion pump size | 102 mm (4 in) diameter | 38045 or 38046 |
| Diffusion pump cooling | Gleeble chilled process fluid | 38045 or 38046 |
| Lowest Achievable Diffusion Pump Vacuum Pressure | 5 x 10-5 Torr | 38045 or 38046 |
| Lowest Achievable Rough Pump Vacuum Pressure | 5 x 10-2 Torr | All systems |
Note
A clean vacuum tank and dry vacuum tank atmosphere (relative humidity less than 60%) are required to achieve the maximum vacuum pressure within 15 minuets.
| Part Number | Description | Sold As |
|---|---|---|
| 38045 | Vacuum Pumping System - Includes Rough Pump and Diffusion Pump (460/480 Volt) | Ea. |
| 38046 | Vacuum Pumping System - Includes Rough Pump and Diffusion Pump (380/400/415 Volt) | Ea. |
| 38050 | Vacuum Rough Pump System (All voltages) - Rough Pump Only with Frame | Ea. |
| 38047 | Vacuum Rough Pump System (All voltages) - Rough Pump Only, No Frame | Ea. |
27.2. 500 Series Vacuum Pumping Systems¶
The Gleeble Vacuum Pumping Systems are designed to perform as an integral part of any Gleeble system. The typical vacuum system contains one diffusion vacuum pump and one rough vacuum pump. The entire unit is controlled from the Gleeble console. The diffusion pump integrated into the 55310 and 55311 systems can reach a lowest achievable vacuum pressure of 5 x 10-5 Torr. The rough vacuum pump, as part of the 55310 or 55311 systems, and 55312 or 55313 Integrated Rough Pump systems can reach a lowest achievable vacuum pressure of 5 x 10-2 Torr. Once activated the 55310 and 55311 Vacuum Pump systems can automatically transition from rough vacuum to high vacuum operation with pneumatically controlled valves.
The 55312 and 55313 vacuum options are built into the Gleeble 500 Series frame and do not add to the Gleeble system’s overall footprint. These options are a rough pump vacuum only and do not include a diffusion pump or High Vacuum capability.
| Characteristic | Specification | Vacuum Pump System |
|---|---|---|
| Voltage Rating | 380/400 VAC | 55310, 55312, 55313 |
| 460/480 VAC | 55311, 55312, 55313 | |
| Roughing pump | 350 L/min (92.5 gal/min) | All systems |
| Diffusion pump | 1,250 L/min (330 gal/min) | 55310 or 55311 |
| Diffusion pump size | 102 mm (4 in) diameter | 55310 or 55311 |
| Diffusion pump cooling | Gleeble chilled process fluid | 55310 or 55311 |
| Lowest Achievable Diffusion Pump Vacuum Pressure | 5 x 10-5 Torr | 55310 or 55311 |
| Lowest Achievable Rough Pump Vacuum Pressure | 5 x 10-2 Torr | All systems |
Note
A clean vacuum tank and dry vacuum tank atmosphere (relative humidity less than 60%) are required to achieve the maximum vacuum pressure within 15 minuets.
| Part Number | Description | Sold As |
|---|---|---|
| 55310 | Vacuum Pumping System - Includes Rough Pump and Diffusion Pump - 380/400 Volt | Ea. |
| 55311 | Vacuum Pumping System - Includes Rough Pump and Diffusion Pump - 460/480 Volt | Ea. |
| 55312 | Integrated Rough Vacuum Pumping System - All voltages | Ea. |
| 55313 | G5 Control Integrated Rough Vacuum Pumping System - All voltages | Ea. |
27.3. Common Service Parts¶
27.3.1. Vacuum Pump Parts¶
| Part Number | Description | Sold As |
|---|---|---|
| 38040 | Vapor Removal System Option for 38045 or 38046 Vacuum Pumping Systems | Ea. |
| 31619 | Replacement Water Flow Switch for Vacuum Pump | Ea. |
| HTR480B | Replacement Diffusion Pump Heater Kit - 460/480 volt | Kit |
| HTR400B | Replacement Diffusion Pump Heater Kit - 380/400/415 volt | Kit |
| GAUGE101 | Active Pirani Rough Vacuum Gauge | Ea. |
| GAUGE101A | Active Pirani Gauge Replacement Tube | Ea. |
| GAUGE102 | Active Magnetron High-Vacuum Gauge | Ea. |
| HTR-WIRE-REPAIR | Diffusion Pump wire repair - #14 AWG High Temp Heater Wire (454°C (849°F) rated) including high-temperature lugs | Kit |
27.3.2. Vacuum Pump Oil¶
Pfeiffer is phasing out the Adixen rough pump and replacing it with the Duovane rough pump. Your vacuum system may contain either pump. Refer to the images below to identify which pump is installed. PV400 is compatible only with the Adixen pump, while PV402 is compatible only with the Duovane pump.
| Part Number | Description | Sold As |
|---|---|---|
| PV400 | Adixen Vacuum Rough Pump Oil - 2 liter | Ea. |
| PV402 | Duovane Vacuum Rough Pump Oil – 1 liter | Ea. |
| PV410 | Vacuum Diffusion Pump Oil - 500 ml | Ea. |
| Adixen Rough Pump | Duovane Rough Pump |
|---|---|
|
|
27.3.3. Diffusion Pump Quick Cool Retrofit¶
This option accelerates cooling of the diffusion pump to reduce shutdown time and extend the life of the diffusion pump heating element. The Quick Cool circuit is included standard as part of all new Gleeble systems equipped with a diffusion pump. Contact a DSI Service representative for assistance in determining if your vacuum system has the Quick Cool circuit.
Fig. 27.3 Diffusion Pump Quick Cool Retrofit - DSI# 32015.
| Part Number | Description | Sold As |
|---|---|---|
| 32015 | Varian Diffusion Pump Quick Cool Retrofit | Ea. |