Application
Vacuum pumps for space simulation and altitude simulation
In a space simulation chamber, satellite components, engines and optics are tested before launch under space-like vacuum and extreme temperatures; altitude chambers and low-density wind tunnels reproduce the thin air of high altitudes. Leybold describes vacuum chambers that simulate space conditions for tests before launch; for this Edwards names below 10⁻¹⁰ mbar at −80 to +180 °C. Below you can see how the application works, what vacuum the manufacturers name and which of their series are intended for it – 200 models from 5 manufacturers.
Compare 200 modelsHow it works
- 200Models
- 24Series
- 5Manufacturers
- below 10⁻¹⁰ mbarChamber pressure in space simulation (Edwards)
Touch the points: each part of the system explains itself.
In short
Space and altitude simulation: the key facts
- Chamber pressureFor space simulation, Edwards names below 10⁻¹⁰ mbar at −80 to +180 °C, and for this the Roots pumps EH and GMB as well as EXS.
- Thermal vacuumLeybold describes thermal vacuum chambers (TVAC) with 70–400 K in which components are tested against temperature extremes and radiation; for thermal vacuum testing Edwards names mXDS, nXDS, XDS, EDS, GXS and nXRi.
- Backing pumpsFor space applications, Leybold names backing pumps down to 1×10⁻² mbar – DRYVAC, RUVAC, TRIVAC B, SCREWLINE SP, ECODRY plus and LEYVAC – with TURBOVAC and COOLVAC as high vacuum pumps.
- Propulsion testsAtlas Copco describes test stands for liquid rocket engines that simulate altitude and vacuum for thrust and combustion data; for ion thrusters Pfeiffer Vacuum names 10⁻⁷ to a few 10⁻⁵ hPa, Leybold long-term tests of electric propulsion systems and thrusters.
Operating principle
How it works: Space and altitude simulation
The drawing shows the basic principle in section. The systems and pumps of the individual manufacturers differ in detail.
- EvacuationThe pumping station lowers the chamber pressure; according to Leybold, the backing pumps reach down to 1×10⁻² mbar, and the turbo pumps and cryopumps that Leybold names alongside them reach the ultimate pressure – Edwards names below 10⁻¹⁰ mbar.
- Temperature cyclingThe chamber runs temperature cycles: Leybold names 70–400 K, Edwards −80 to +180 °C.
- TestingPropulsion tests, mass loss (TML) and bake-out take place under vacuum; Leybold describes the measurement of material degradation over a long period, Atlas Copco test stands that provide thrust and combustion data.
Vacuum and sizing
Space and altitude simulation: how much vacuum is needed
What the manufacturers say about pressure, pumping speed and sizing.
Which vacuum
Edwards: below 10⁻¹⁰ mbar. Pfeiffer Vacuum: 10⁻⁷ to a few 10⁻⁵ hPa for ion thrusters. Leybold: backing pumps down to 1×10⁻² mbar, below that TURBOVAC and COOLVAC. Busch describes ultra-high vacuum that reproduces the orbit.
Which pumping speed
The pumping speed depends on the chamber volume and the gas load from the test specimen; pumping stations consisting of a Roots pump and a backing pump are named (Atlas Copco DRB and ZRS, Leybold RUVAC, Edwards EH and GMB, Pfeiffer Vacuum HiLobe).
What determines the sizing
The temperature range of the chamber (70–400 K according to Leybold, −80 to +180 °C according to Edwards), outgassing and bake-out (Edwards), the duration of the long-term tests (Leybold) and the type of test – thermal vacuum, propulsion or optics (Pfeiffer Vacuum).
Related test stands
Atlas Copco names altitude simulation with DRB and GHS VSD+ as well as low-density wind tunnels with ZRS, Edwards such wind tunnels with EH and GMB. Becker names vacuum chambers for altitude training in which the air pressure is reduced.
Technology
Space and altitude simulation: the vacuum pumps the manufacturers name
Listed are the series the manufacturer itself names for this application. “Show only …” sets the filter of the product overview.
Screw vacuum pumps
98 models · 70–5,760 m³/h
Roots vacuum pumps
70 models · 14–44,300 m³/h
Oil-lubricated rotary vane vacuum pumps
20 models · 2.7–79 m³/h
Scroll vacuum pumps
12 models · 3–43 m³/h
Becker names the application without naming a series for it.
Product overview
Space and altitude simulation: all 200 models compared
Use the filters on the left to narrow the selection – by manufacturer, technology and the models’ key figures, for 50 or 60 Hz.
Atlas Copco DRB series 4 models
DRB 250Pumping speed 253 m³/h 50 Hz304 m³/h 60 HzUltimate pressure Rated motor power 1.1 kW 50 Hz1.1 kW 60 HzVariants 2
DRB 500Pumping speed 505 m³/h 50 Hz606 m³/h 60 HzUltimate pressure Rated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 2DRB 1000Pumping speed 1,000 m³/h 50 Hz1,200 m³/h 60 HzUltimate pressure Rated motor power 4 kW 50 Hz4 kW 60 HzVariants 2DRB 2000Pumping speed 2,050 m³/h 50 Hz2,460 m³/h 60 HzUltimate pressure Rated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 2Atlas Copco DWS VSD+ series 6 models
DWS 160 VSD+Pumping speed 160 m³/h 50 Hz160 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 1DWS 250 VSD+Pumping speed 250 m³/h 50 Hz250 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 1DWS 450 VSD+Pumping speed 450 m³/h 50 Hz450 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 3DWS 750 VSD+Pumping speed 740 m³/h 50 Hz740 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 3DWS 160/1750 VSD+Pumping speed 1,200 m³/h 50 Hz1,200 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 12 kW 50 Hz12 kW 60 HzVariants 1DWS 250/2600 VSD+Pumping speed 1,900 m³/h 50 Hz1,900 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 1Atlas Copco GHS VSD+ series 21 models
GHS 350 VSD+Pumping speed 400 m³/h 50 Hz400 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 5.5 kW 50 Hz5.5 kW 60 HzVariants 29GHS 402 VSD+Pumping speed 467 m³/h 50 Hz467 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 5.5 – 7.5 kW 50 Hz5.5 – 7.5 kW 60 HzVariants 4GHS 585 VSD+Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 30GHS 602 VSD+Pumping speed 640 m³/h 50 Hz640 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 7.5 – 11 kW 50 Hz7.5 – 11 kW 60 HzVariants 4GHS 730 VSD+Pumping speed 730 m³/h 50 Hz730 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 30GHS 752 VSD+Pumping speed 805 m³/h 50 Hz805 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 11 – 15 kW 50 Hz11 – 15 kW 60 HzVariants 4GHS 900 VSD+Pumping speed 870 m³/h 50 Hz870 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 32GHS 902 VSD+Pumping speed 917 m³/h 50 Hz917 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 15 – 18.5 kW 50 Hz15 – 18.5 kW 60 HzVariants 4GHS 1002 VSD+Pumping speed 1,039 m³/h 50 Hz1,039 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants GHS 1202 VSD+Pumping speed 1,172 m³/h 50 Hz1,172 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 9GHS 1300 VSD+Pumping speed 1,250 – 1,615 m³/h 50 Hz1,250 – 1,615 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 18 – 22 kW 50 Hz18 – 22 kW 60 HzVariants 33GHS 1402 VSD+Pumping speed 1,383 m³/h 50 Hz1,383 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 9GHS 1602 VSD+Pumping speed 1,581 m³/h 50 Hz1,581 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 30 kW 50 Hz30 kW 60 HzVariants 9GHS 1600 VSD+Pumping speed 1,590 – 1,811 m³/h 50 Hz1,590 – 1,811 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 28 – 30 kW 50 Hz28 – 30 kW 60 HzVariants 33GHS 2002 VSD+Pumping speed 1,771 m³/h 50 Hz1,771 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 9GHS 1900 VSD+Pumping speed 1,810 m³/h 50 Hz1,810 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 21GHS 2700 VSD+Pumping speed 2,674 m³/h 50 Hz2,674 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 45 kW 50 Hz45 kW 60 HzVariants 8GHS 3400 VSD+Pumping speed 3,268 m³/h 50 Hz3,268 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 55 kW 50 Hz55 kW 60 HzVariants 8GHS 3800 VSD+Pumping speed 3,724 m³/h 50 Hz3,724 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 55 kW 50 Hz55 kW 60 HzVariants 9GHS 4600 VSD+Pumping speed 4,494 m³/h 50 Hz4,494 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 75 kW 50 Hz75 kW 60 HzVariants 9GHS 5400 VSD+Pumping speed 5,136 m³/h 50 Hz5,136 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 90 kW 50 Hz90 kW 60 HzVariants 9Atlas Copco ZRS series 5 models
ZRS 250Pumping speed 310 m³/h 50 Hz375 m³/h 60 HzUltimate pressure Rated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 4ZRS 500Pumping speed 505 m³/h 50 Hz605 m³/h 60 HzUltimate pressure Rated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 4ZRS 1200Pumping speed 1,195 m³/h 50 Hz1,435 m³/h 60 HzUltimate pressure Rated motor power 3 kW 50 Hz3 kW 60 HzVariants 4ZRS 2600Pumping speed 2,590 m³/h 50 Hz3,110 m³/h 60 HzUltimate pressure Rated motor power 11 kW 50 Hz11 kW 60 HzVariants 4ZRS 4200Pumping speed 4,140 m³/h 50 Hz4,985 m³/h 60 HzUltimate pressure Rated motor power 11 kW 50 Hz11 kW 60 HzVariants 4Busch COBRA Industry series 36 models
COBRA NS 0070 CPumping speed 70 m³/h 50 Hz85 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 4 kW 50 Hz4.4 kW 60 HzVariants 
COBRA NC 0100 BPumping speed 110 m³/h 50 Hz130 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 3.5 kW 50 Hz4.8 kW 60 HzVariants 4
COBRA NC 0100 B ECOTORQUEPumping speed 130 m³/h 50 Hz130 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 4.8 kW 50 Hz4.8 kW 60 HzVariants 
COBRA NS 0160 CPumping speed 135 m³/h 50 Hz170 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 
COBRA NC 0200 BPumping speed 220 m³/h 50 Hz265 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 6 kW 50 Hz7.6 kW 60 HzVariants 4
COBRA NC 0200 B ECOTORQUEPumping speed 265 m³/h 50 Hz265 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.6 kW 50 Hz7.6 kW 60 HzVariants 
COBRA NC 0300 BPumping speed 320 m³/h 50 Hz385 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 4
COBRA NC 0400 BPumping speed 350 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NX 0450 APumping speed 350 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NC 0300 B ECOTORQUEPumping speed 385 m³/h 50 Hz385 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 9.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NC 0400 B ECOTORQUEPumping speed 420 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 9.5 kW 50 Hz9.5 kW 60 HzVariants 
COBRA NX 0450 A ECOTORQUEPumping speed 420 m³/h 50 Hz420 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 
COBRA NC 0500 BPumping speed 490 m³/h 50 Hz490 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 9 kW 50 Hz9 kW 60 HzVariants 
COBRA NC 0630 C VRPumping speed 580 m³/h 50 Hz680 m³/h 60 HzUltimate pressure 25 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants COBRA NC 0600 CPumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 
COBRA NS 0600 CPumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NC 0630 CPumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz17 kW 60 HzVariants 
COBRA NC 0630 C ECOTORQUEPumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 17 kW 50 Hz17 kW 60 HzVariants 
COBRA DX 0650 A PLUSPumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NX 0650 APumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 12.5 kW 50 Hz15 kW 60 HzVariants 
COBRA NX 0650 A ECOTORQUEPumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NF 0750 APumping speed 750 m³/h 50 Hz750 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 
COBRA NC 1000 BPumping speed 840 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 22 kW 50 Hz25 kW 60 HzVariants 
COBRA DX 0950 A PLUSPumping speed 950 m³/h 50 Hz950 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 
COBRA NF 0950 APumping speed 950 m³/h 50 Hz950 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 
COBRA NX 0950 A ECOTORQUEPumping speed 950 m³/h 50 Hz950 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 
COBRA NC 1500 B VRPumping speed 1,160 m³/h 50 Hz1,400 m³/h 60 HzUltimate pressure 20 mbarRated motor power 30 kW 50 Hz36 kW 60 HzVariants 
COBRA DX 2000 A PLUSPumping speed 1,900 m³/h 50 Hz1,900 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 
COBRA NC 2500 CPumping speed 2,000 m³/h 50 Hz2,500 m³/h 60 HzUltimate pressure 1 mbarRated motor power 55 kW 50 Hz63 kW 60 HzVariants 
COBRA NC 2000 C VRPumping speed 2,100 m³/h 50 Hz2,600 m³/h 60 HzUltimate pressure 20 mbarRated motor power 55 kW 50 Hz63 kW 60 HzVariants 
COBRA DH 2760 APumping speed 2,112 m³/h 50 Hz2,112 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 22.5 kW 50 Hz22.5 kW 60 HzVariants 
COBRA DH 2780 APumping speed 2,250 m³/h 50 Hz2,250 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 26 kW 50 Hz26 kW 60 HzVariants 
COBRA DH 4560 APumping speed 3,077 m³/h 50 Hz3,077 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 22.5 kW 50 Hz22.5 kW 60 HzVariants 
COBRA DH 4580 APumping speed 3,512 m³/h 50 Hz3,512 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 26 kW 50 Hz26 kW 60 HzVariants 
COBRA DH 6260 APumping speed 3,781 m³/h 50 Hz3,781 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 22.5 kW 50 Hz22.5 kW 60 HzVariants 
COBRA DH 6280 APumping speed 4,652 m³/h 50 Hz4,652 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 26 kW 50 Hz26 kW 60 HzVariants Edwards EDS series 3 models
Edwards EDS200Pumping speed 210 m³/h 50 Hz210 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 5.5 – 7.5 kW 50 Hz5.5 – 7.5 kW 60 HzVariants 10Edwards EDS300Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 10Edwards EDS480Pumping speed 460 m³/h 50 Hz460 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 5Edwards EH series 5 models
Edwards EH250Pumping speed 310 m³/h 50 Hz375 m³/h 60 HzUltimate pressure Rated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 8
Edwards EH500Pumping speed 505 m³/h 50 Hz605 m³/h 60 HzUltimate pressure Rated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 8
Edwards EH1200Pumping speed 1,195 m³/h 50 Hz1,435 m³/h 60 HzUltimate pressure Rated motor power 3 kW 50 Hz3 kW 60 HzVariants 8
Edwards EH2600Pumping speed 2,590 m³/h 50 Hz3,110 m³/h 60 HzUltimate pressure Rated motor power 11 kW 50 Hz11 kW 60 HzVariants 8
Edwards EH4200Pumping speed 4,140 m³/h 50 Hz4,985 m³/h 60 HzUltimate pressure Rated motor power 11 kW 50 Hz11 kW 60 HzVariants 8Edwards EXS series 11 models
Edwards EXS160Pumping speed 160 m³/h 50 Hz160 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 2Edwards EXS250Pumping speed 250 m³/h 50 Hz250 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 2Edwards EXS450Pumping speed 450 m³/h 50 Hz450 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 3Edwards EXS750Pumping speed 740 m³/h 50 Hz740 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 3Edwards EXS160/1750Pumping speed 1,160 m³/h 50 Hz1,160 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 12 kW 50 Hz12 kW 60 HzVariants 2Edwards EXS250/2600Pumping speed 1,900 m³/h 50 Hz1,900 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 2Edwards EXS450/2600Pumping speed 2,130 m³/h 50 Hz2,130 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 2Edwards EXS750/2600Pumping speed 2,280 m³/h 50 Hz2,280 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 29.5 kW 50 Hz29.5 kW 60 HzVariants 1Edwards EXS450/4200Pumping speed 3,180 m³/h 50 Hz3,180 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 2Edwards EXS750/4200Pumping speed 3,450 m³/h 50 Hz3,450 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 29.5 kW 50 Hz29.5 kW 60 HzVariants 1Edwards EXS750/8000Pumping speed 5,760 m³/h 50 Hz5,760 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 29.5 kW 50 Hz29.5 kW 60 HzVariants 1Edwards GMB series 2 models
Edwards GMB25KPumping speed 25,500 m³/h 50 HzUltimate pressure Rated motor power Variants 8Edwards GMB40KPumping speed 44,300 m³/h 50 HzUltimate pressure Rated motor power Variants 8Edwards GXS series 10 models
Edwards GXS160Pumping speed 160 m³/h 50 Hz160 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 12Edwards GXS250Pumping speed 250 m³/h 50 Hz250 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 10Edwards GXS450Pumping speed 450 m³/h 50 Hz450 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 8Edwards GXS750Pumping speed 740 m³/h 50 Hz740 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 12Edwards GXS160/1750Pumping speed 1,160 m³/h 50 Hz1,160 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 12 kW 50 Hz12 kW 60 HzVariants 11Edwards GXS250/2600Pumping speed 1,900 m³/h 50 Hz1,900 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 10Edwards GXS450/2600Pumping speed 2,200 m³/h 50 Hz2,200 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 9Edwards GXS750/2600Pumping speed 2,300 m³/h 50 Hz2,300 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 29.5 kW 50 Hz29.5 kW 60 HzVariants 8Edwards GXS450/4200Pumping speed 3,026 m³/h 50 Hz3,026 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 9Edwards GXS750/4200Pumping speed 3,450 m³/h 50 Hz3,450 m³/h 60 HzUltimate pressure 1 × 10-3 mbarRated motor power 29.5 kW 50 Hz29.5 kW 60 HzVariants 10Edwards mXDS series 2 models
Edwards mXDS3Pumping speed 3 m³/h 50 Hz3.5 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants 3Edwards mXDS3sPumping speed 3 m³/h 50 Hz3.5 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants 3Edwards nXDS series 4 models
Edwards nXDS6iPumping speed 6.2 m³/h 50 Hz6.2 m³/h 60 HzUltimate pressure 0.02 mbarRated motor power Variants 3Edwards nXDS10iPumping speed 11.4 m³/h 50 Hz11.4 m³/h 60 HzUltimate pressure 7 × 10-3 mbarRated motor power Variants 3Edwards nXDS15iPumping speed 15.1 m³/h 50 Hz15.1 m³/h 60 HzUltimate pressure 7 × 10-3 mbarRated motor power Variants 3Edwards nXDS20iPumping speed 22 m³/h 50 Hz22 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 3Edwards nXRi series 5 models
Edwards nXR30iPumping speed 30 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 1Edwards nXR40iPumping speed 40 m³/h 50 Hz40 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 1Edwards nXR60iPumping speed 60 m³/h 50 Hz60 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 1Edwards nXR90iPumping speed 90 m³/h 50 Hz90 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 1Edwards nXR120iPumping speed 120 m³/h 50 Hz120 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power Variants 1Edwards XDS series 2 models
Edwards XDS35iPumping speed 35 m³/h 50 Hz35 m³/h 60 HzUltimate pressure 0.01 – 0.03 mbarRated motor power Variants 6Edwards XDS46iPumping speed 40 m³/h 50 Hz40 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power Variants 2Leybold DRYVAC series 9 models
DRYVAC DV 200Pumping speed 210 m³/h 50 Hz210 m³/h 60 HzUltimate pressure 0.05 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 4
DRYVAC DV 300Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 4
DRYVAC DV 500Pumping speed 380 – 460 m³/h 50 Hz380 – 460 m³/h 60 HzUltimate pressure 0.01 – 0.05 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 5
DRYVAC DV 650Pumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 33DRYVAC DV 650 FPPumping speed 650 m³/h 50 Hz650 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 8
DRYVAC DV 800Pumping speed 800 m³/h 50 Hz800 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 19.6 kW 50 Hz19.6 kW 60 HzVariants 11DRYVAC DV 800 FP-rPumping speed 800 m³/h 50 Hz800 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 19.6 kW 50 Hz19.6 kW 60 HzVariants 4
DRYVAC DV 1200Pumping speed 1,250 m³/h 50 Hz1,250 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 30 kW 50 Hz30 kW 60 HzVariants 3DRYVAC DV 1600Pumping speed 1,600 m³/h 50 Hz1,600 m³/h 60 HzUltimate pressure 5 × 10-3 mbarRated motor power 39.2 kW 50 Hz39.2 kW 60 HzVariants 1Leybold ECODRY series 5 models
ECODRY 25 plusPumping speed 25 m³/h 50 Hz25 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 0.85 kW 50 Hz0.85 kW 60 HzVariants 1
ECODRY 35 plusPumping speed 35 m³/h 50 Hz35 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 0.85 kW 50 Hz0.85 kW 60 HzVariants 1
ECODRY 40 plusPumping speed 40 m³/h 50 Hz40 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 1.2 kW 50 Hz1.2 kW 60 HzVariants 2ECODRY 65 He plusPumping speed 55 m³/h 50 Hz55 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 1.2 kW 50 Hz1.2 kW 60 HzVariants 2
ECODRY 65 plusPumping speed 55 m³/h 50 Hz55 m³/h 60 HzUltimate pressure 0.03 mbarRated motor power 1.2 kW 50 Hz1.2 kW 60 HzVariants 4Leybold RUVAC WA/WAU series 8 models
RUVAC WA 251Pumping speed 210 m³/h 50 Hz251 m³/h 60 HzUltimate pressure 8 × 10-4 mbarRated motor power 1.1 kW 50 Hz1.1 kW 60 HzVariants 3
RUVAC WAU 251Pumping speed 210 m³/h 50 Hz251 m³/h 60 HzUltimate pressure 8 × 10-4 mbarRated motor power 1.1 kW 50 Hz1.1 kW 60 HzVariants 5
RUVAC WA 501Pumping speed 410 m³/h 50 Hz530 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 4
RUVAC WAU 501Pumping speed 410 m³/h 50 Hz530 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 6
RUVAC WA 1001Pumping speed 800 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 4 kW 50 Hz4 kW 60 HzVariants 3
RUVAC WAU 1001Pumping speed 800 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 4 kW 50 Hz4 kW 60 HzVariants 6
RUVAC WA 2001Pumping speed 1,850 m³/h 50 Hz2,100 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 3
RUVAC WAU 2001Pumping speed 1,850 m³/h 50 Hz2,100 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 7Leybold RUVAC WH/WHU series 7 models
RUVAC WH 700Pumping speed 620 m³/h 50 Hz740 m³/h 60 HzUltimate pressure Rated motor power 2.2 – 3.8 kW 50 Hz2.6 – 3.8 kW 60 HzVariants 9
RUVAC WH 2500Pumping speed 2,200 m³/h 50 Hz2,500 m³/h 60 HzUltimate pressure Rated motor power 6.2 – 11 kW 50 Hz7.4 – 11 kW 60 HzVariants 24
RUVAC WHU 2500Pumping speed 2,200 m³/h 50 Hz2,500 m³/h 60 HzUltimate pressure Rated motor power 6.2 kW 50 Hz7.4 kW 60 HzVariants 10
RUVAC WH 4400Pumping speed 3,300 m³/h 50 Hz3,900 m³/h 60 HzUltimate pressure Rated motor power 11 – 18.5 kW 50 Hz11 – 18.5 kW 60 HzVariants 14
RUVAC WHU 4400Pumping speed 3,300 m³/h 50 Hz3,900 m³/h 60 HzUltimate pressure Rated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 7
RUVAC WH 7000Pumping speed 4,700 m³/h 50 Hz5,300 m³/h 60 HzUltimate pressure Rated motor power 11 – 18.5 kW 50 Hz11 – 18.5 kW 60 HzVariants 19
RUVAC WHU 7000Pumping speed 4,700 m³/h 50 Hz5,300 m³/h 60 HzUltimate pressure Rated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 3Leybold RUVAC WS/WSU series 8 models
RUVAC WS 251Pumping speed 210 m³/h 50 Hz251 m³/h 60 HzUltimate pressure 8 × 10-4 mbarRated motor power 1.1 kW 50 Hz1.4 kW 60 HzVariants 2
RUVAC WSU 251Pumping speed 210 m³/h 50 Hz251 m³/h 60 HzUltimate pressure 8 × 10-4 mbarRated motor power 1.1 kW 50 Hz1.4 kW 60 HzVariants 4
RUVAC WS 501Pumping speed 410 m³/h 50 Hz530 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 2.2 kW 50 Hz2.4 kW 60 HzVariants 2
RUVAC WSU 501Pumping speed 410 m³/h 50 Hz530 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 2.2 kW 50 Hz2.4 kW 60 HzVariants 5
RUVAC WS 1001Pumping speed 800 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 4 kW 50 Hz4.4 kW 60 HzVariants 3
RUVAC WSU 1001Pumping speed 800 m³/h 50 Hz1,000 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 4 kW 50 Hz4.4 kW 60 HzVariants 6
RUVAC WS 2001Pumping speed 1,850 m³/h 50 Hz2,100 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 7.5 kW 50 Hz8.5 kW 60 HzVariants 11
RUVAC WSU 2001Pumping speed 1,850 m³/h 50 Hz2,100 m³/h 60 HzUltimate pressure 0.04 mbarRated motor power 7.5 kW 50 Hz8.5 kW 60 HzVariants 15Leybold SCREWLINE series 2 models
SCREWLINE SP 630Pumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 6SCREWLINE SP 630 FPumping speed 630 m³/h 50 Hz630 m³/h 60 HzUltimate pressure 0.01 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 11Leybold TRIVAC series 20 models
TRIVAC D 2,5 EPumping speed 2.7 m³/h 50 Hz3.3 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.28 – 0.29 kW 50 Hz0.3 – 0.31 kW 60 HzVariants 3
TRIVAC D 4 BPumping speed 4.2 m³/h 50 Hz5 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.37 – 0.57 kW 50 Hz0.44 – 0.66 kW 60 HzVariants 3TRIVAC D 4 TPumping speed 4.3 m³/h 50 HzUltimate pressure 5 × 10-3 mbarRated motor power 0.25 – 0.57 kW 50 Hz0.25 – 0.66 kW 60 HzVariants 2TRIVAC D 5 LPumping speed 5.1 m³/h 50 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.37 kW 50 HzVariants 2TRIVAC D 8 TPumping speed 8.2 m³/h 50 HzUltimate pressure 5 × 10-3 mbarRated motor power 0.37 – 0.57 kW 50 Hz0.37 – 0.66 kW 60 HzVariants 2
TRIVAC D 8 BPumping speed 8.5 m³/h 50 Hz10.2 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.37 – 0.57 kW 50 Hz0.44 – 0.66 kW 60 HzVariants 3TRIVAC D 12 LPumping speed 12 m³/h 50 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.37 kW 50 HzVariants 2TRIVAC D 16 TPumping speed 16.2 m³/h 50 HzUltimate pressure 5 × 10-3 mbarRated motor power 0.55 – 0.75 kW 50 Hz0.55 – 0.75 kW 60 HzVariants 2
TRIVAC D 16 BPumping speed 16.5 m³/h 50 Hz19.8 m³/h 60 HzUltimate pressure 2 × 10-3 – 0.6 mbarRated motor power 0.75 – 0.9 kW 50 Hz0.75 – 0.9 kW 60 HzVariants 6
TRIVAC D 16 BCSPumping speed 16.5 m³/h 50 Hz19.8 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.75 kW 50 Hz0.75 kW 60 HzVariants 2
TRIVAC D 25 BPumping speed 25.7 m³/h 50 Hz30.8 m³/h 60 HzUltimate pressure 2 × 10-3 – 0.6 mbarRated motor power 0.75 – 0.9 kW 50 Hz0.75 – 0.9 kW 60 HzVariants 4
TRIVAC D 25 BCSPumping speed 25.7 m³/h 50 Hz30.8 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 0.75 kW 50 Hz0.75 kW 60 HzVariants 2TRIVAC D 30 TPumping speed 30.2 m³/h 50 HzUltimate pressure 5 × 10-3 mbarRated motor power 0.75 kW 50 Hz0.75 kW 60 HzVariants 2
TRIVAC D 40 BPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 2 × 10-3 – 0.6 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 2
TRIVAC D 40 BCSPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 2TRIVAC D 40 LPumping speed 42 m³/h 50 Hz50 m³/h 60 HzUltimate pressure 3 × 10-3 mbarRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.5 kW 60 HzVariants 4TRIVAC D 63 LPumping speed 60 m³/h 50 Hz72 m³/h 60 HzUltimate pressure 3 × 10-3 mbarRated motor power 1.5 – 2.2 kW 50 Hz1.8 – 2.2 kW 60 HzVariants 4
TRIVAC D 65 BPumping speed 65 m³/h 50 Hz78 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 1
TRIVAC D 65 BCSPumping speed 65 m³/h 50 Hz78 m³/h 60 HzUltimate pressure 2 × 10-3 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 2TRIVAC D 90 LPumping speed 79 m³/h 50 Hz95 m³/h 60 HzUltimate pressure 3 × 10-3 mbarRated motor power 2.2 – 3 kW 50 Hz2.6 – 3 kW 60 HzVariants 3Pfeiffer Vacuum ACP series 4 models
ACP 15Pumping speed 14 m³/h 50 HzUltimate pressure 0.05 mbarRated motor power Variants 9ACP 28Pumping speed 27 m³/h 50 HzUltimate pressure 0.04 mbarRated motor power Variants 14ACP 40Pumping speed 37 m³/h 50 HzUltimate pressure 0.04 mbarRated motor power Variants 15ACP 90Pumping speed 88 m³/h 50 HzUltimate pressure 0.03 mbarRated motor power Variants 6Pfeiffer Vacuum HiLobe series 17 models
HiLobe 1002Pumping speed 1,050 m³/h 50 HzUltimate pressure Rated motor power 2 kW 50 HzVariants 1HiLobe 1004Pumping speed 1,050 m³/h 50 HzUltimate pressure Rated motor power 2 kW 50 HzVariants 2HiLobe 1302Pumping speed 1,300 m³/h 50 HzUltimate pressure Rated motor power 2.5 kW 50 HzVariants 2HiLobe 1304Pumping speed 1,300 m³/h 50 HzUltimate pressure Rated motor power 2.5 kW 50 HzVariants 2HiLobe 2104Pumping speed 2,100 m³/h 50 HzUltimate pressure Rated motor power 3.5 kW 50 HzVariants 2HiLobe 2703Pumping speed 2,700 m³/h 50 HzUltimate pressure Rated motor power 3.5 kW 50 HzVariants 1HiLobe 2704Pumping speed 2,700 m³/h 50 HzUltimate pressure Rated motor power 3.5 kW 50 HzVariants 2HiLobe 4504Pumping speed 4,440 m³/h 50 HzUltimate pressure Rated motor power 5.5 kW 50 HzVariants 2HiLobe 4503Pumping speed 4,500 m³/h 50 HzUltimate pressure Rated motor power 5.5 kW 50 HzVariants 1HiLobe 6203Pumping speed 6,200 m³/h 50 HzUltimate pressure Rated motor power 7.5 kW 50 HzVariants 1HiLobe 6204Pumping speed 6,220 m³/h 50 HzUltimate pressure Rated motor power 7.5 kW 50 HzVariants 2HiLobe 8103Pumping speed 8,120 m³/h 50 HzUltimate pressure Rated motor power 9 kW 50 HzVariants 1HiLobe 8104Pumping speed 8,120 m³/h 50 HzUltimate pressure Rated motor power 9 kW 50 HzVariants 1HiLobe 11003Pumping speed 10,830 m³/h 50 HzUltimate pressure Rated motor power 12 kW 50 HzVariants 1HiLobe 11004Pumping speed 10,830 m³/h 50 HzUltimate pressure Rated motor power 12 kW 50 HzVariants 1HiLobe 14003Pumping speed 13,540 m³/h 50 HzUltimate pressure Rated motor power 15 kW 50 HzVariants 1HiLobe 14004Pumping speed 13,540 m³/h 50 HzUltimate pressure Rated motor power 15 kW 50 HzVariants 1Pfeiffer Vacuum HiScroll series 4 models
HiScroll 6Pumping speed 6.1 m³/h 50 HzUltimate pressure 0.015 mbarRated motor power Variants 7HiScroll 12Pumping speed 12.1 m³/h 50 HzUltimate pressure 6 × 10-3 mbarRated motor power Variants 7HiScroll 18Pumping speed 18.1 m³/h 50 HzUltimate pressure 6 × 10-3 mbarRated motor power Variants 11HiScroll 46Pumping speed 43 m³/h 50 HzUltimate pressure 7 × 10-3 mbarRated motor power Variants 11No model matches these filters.
Atlas Copco DRB series 4 models
Atlas Copco DWS VSD+ series 6 models
Atlas Copco GHS VSD+ series 21 models
Atlas Copco ZRS series 5 models
Busch COBRA Industry series 36 models
Edwards EDS series 3 models
Edwards EH series 5 models
Edwards EXS series 11 models
Edwards GMB series 2 models
Edwards GXS series 10 models
Edwards mXDS series 2 models
Edwards nXDS series 4 models
Edwards nXRi series 5 models
Edwards XDS series 2 models
Leybold DRYVAC series 9 models
Leybold ECODRY series 5 models
Leybold RUVAC WA/WAU series 8 models
Leybold RUVAC WH/WHU series 7 models
Leybold RUVAC WS/WSU series 8 models
Leybold SCREWLINE series 2 models
Leybold TRIVAC series 20 models
Pfeiffer Vacuum ACP series 4 models
Pfeiffer Vacuum HiLobe series 17 models
Pfeiffer Vacuum HiScroll series 4 models
Models a manufacturer no longer carries in its current range are listed in its “Outdated models” section.
Industries
Space and altitude simulation: where the manufacturers name it
The manufacturers list these uses on their own pages.
Aerospace
Atlas Copco describes the testing of components under space-like vacuum and test stands for liquid rocket engines; Edwards names thermal vacuum testing (TVAC) for space qualification with mXDS, nXDS, XDS, EDS, GXS and nXRi.
Research, laboratory and analytics
Leybold, Edwards, Pfeiffer Vacuum and Busch list space simulation under research: Leybold names TVAC chambers, the coating of large telescope mirrors with silver and aluminium and the cooling of telescope detectors down to 4 K, Pfeiffer Vacuum thermal vacuum tests, propulsion tests and telescope optics, Busch COBRA for space research.
Automotive and transport
Busch and Pfeiffer Vacuum also list the simulation of space conditions under automotive and transport; there Busch describes ultra-high vacuum that reproduces the orbit, with COBRA.
Medical and healthcare
In medical technology, Becker names altitude training in vacuum chambers in which the air pressure is reduced.
Frequently asked questions
Space and altitude simulation: frequently asked questions
How does a space simulation chamber work?
A vacuum chamber is evacuated and temperature-controlled until the conditions in space are reproduced; components, engines and optics are tested in it. Leybold describes vacuum chambers that simulate space conditions for tests before launch, Edwards names below 10⁻¹⁰ mbar at −80 to +180 °C, Busch ultra-high vacuum that reproduces the orbit.
Which vacuum pump for space simulation?
Leybold names DRYVAC, RUVAC, TRIVAC B, SCREWLINE SP, ECODRY plus and LEYVAC as backing pumps down to 1×10⁻² mbar, and TURBOVAC and COOLVAC as high vacuum pumps. Edwards names EH, GMB and EXS for space simulation and mXDS, nXDS, XDS, EDS, GXS and nXRi for thermal vacuum testing. Atlas Copco names DWS VSD+ and ZRS, Pfeiffer Vacuum scroll, screw and booster pumps, in the product finder ACP, HiScroll and HiLobe, Busch COBRA.
How much vacuum does a thermal vacuum chamber (TVAC) need?
For space simulation, Edwards names below 10⁻¹⁰ mbar. For the backing pumps Leybold names down to 1×10⁻² mbar; turbo pumps and cryopumps do the rest. For ion thruster tests Pfeiffer Vacuum names 10⁻⁷ to a few 10⁻⁵ hPa.
What temperatures are used in TVAC tests?
For thermal vacuum chambers in which components are tested against temperature extremes and radiation, Leybold names 70–400 K; Edwards names −80 to +180 °C and describes thermal vacuum testing as vacuum plus extreme temperature.
Oil-free or oil-lubricated for space simulation?
Both are named. Leybold lists the oil-lubricated TRIVAC B alongside the dry DRYVAC, SCREWLINE SP and ECODRY plus; for thermal vacuum testing Edwards names dry scroll and screw pumps (mXDS, nXDS, XDS, EDS, GXS) and the nXRi; Atlas Copco the oil-lubricated screw pump GHS VSD+ for altitude simulation and the dry DWS VSD+ for space simulation.
How are rocket engines tested under vacuum?
Atlas Copco describes test stands for liquid rocket engines that simulate altitude and vacuum in order to obtain thrust and combustion data. Leybold names long-term tests of electric propulsion systems and thrusters under space conditions, Pfeiffer Vacuum propulsion tests with 10⁻⁷ to a few 10⁻⁵ hPa for ion thrusters, Edwards the testing of ion thrusters with their outgassing.
What is a TML test?
TML stands for the mass loss of a material in vacuum. Leybold describes the measurement of material degradation over a long period together with bake-out; Edwards names bake-out and TML alongside propulsion testing and points out outgassing.
Which vacuum pump for altitude simulation?
For altitude simulation, Atlas Copco names the DRB Roots pumps and the GHS 1202–2002 VSD+ screw pumps. Becker names vacuum chambers for altitude training in which the air pressure is reduced, without naming a series.
Which vacuum pump for low-density wind tunnels?
Atlas Copco names the ZRS Roots pumps for this, Edwards the EH and GMB Roots pumps – both manufacturers list the application without describing it in more detail.
What if the test specimen outgasses in the vacuum?
Edwards names bake-out alongside propulsion testing and points out the outgassing that the pumping station must remove; in the TML test, according to Leybold, material degradation is measured over a long period. The pumping station must be designed so that it pumps away the released gases throughout the entire test.
A single pump or a central vacuum system?
A central system in a room of its own keeps noise and heat away from production and matches its output to the demand. Central vacuum systems are planned and built by Eugen Theis Vakuum, a company of the Ehrler & Beck group – more under Central Vacuum.
Does Ehrler & Beck also supply spare parts and service?
Yes. Ehrler & Beck offers original spare parts and accessories as well as maintenance and repair.
Which pump suits your process?
Tell us the application, the medium and the volume – we advise you on selection, spare parts and service.
