Eliminate Maintenance Hassles With Edwards GXS 450/4200 Dry Screw
Pumps And Advanced Bearing And Lubrication
DRY SCREW VACUUM PUMPS
GXS 450/4200
THE PARTNER OF CHOICE
Edwards is a world leader in the design, technology and manufacture
of vacuum pumps with over 95 years’ history and more than 75 years’
manufacturing experience.
Edwards believes in delivering results that bring value to our
customers by using our breadth of industry experience to identify
and apply solutions to your problems.Using the most innovative and
up-to-date modelling techniques, we can optimise the pumping
configuration for customers to provide a system design giving the
maximum performance in the most reliable and cost-effective way.
GXS DRY SCREW PUMPS AND COMBINATIONS
Our new GXS dry pumps take vacuum performance to the next level.
With unique screw technology and world leading high efficiency
drives, enabling advanced temperature control and long service
intervals, you are guaranteed best-in-class pumping speeds and low
running costs for many years to come.
GXS innovative screw technology
1.Double ended shaft support
• Non-cantilever design provides secure rotor support for extremely
low vibration and superior starting reliability, especially on
harsh processes
• Superior liquid and powder handling. Tests demonstrate a five
litre water slug and one kilogram fine powder slug handling
capability
2.Bearing and lubrication
• Oil lubricated gears eliminate grease and the need for periodic
maintenance
• Uses advanced quality bearings and special purpose oil with low
vapour pressure for application compatibility and greatly improved
life
3.Advanced shaft sealing technology
• Non-contacting long-life seals with integral oil blocking
labyrinth seal provides for highly effective sealing
• Combined with a six litre per minute seal purge the gearbox is
protected from contamination and the vacuum space is kept free of
oil
GXS booster
4.World leading motor and drive technology
• Extremely high efficiency motors with electronic drives deliver
maximum torque performance for difficult processes
• Hermetically sealed motor eliminates oil leaks and improves pump
reliability
• Water-cooled motors and drives provide for improved reliability
and long life to reduce service costs
5.Advanced pumping mechanism design
• Enhanced screw-type rotor design results in smooth,gradual
compression along the length of the rotor for improved thermal
control and
optimised pumping at all inlet pressures
• Integrated heat management and unique rotor and stator design
features provide argon gas pumping capability at full concentration
• Advanced machining techniques and design features eliminate the
need for rotor coatings while maintaining superb ultimate vacuum
performance
• Improved manufacturing technology and design contributes to low
vibration and extremely quiet running without a silencer
6.Roots booster mechanism
• High efficiency vacuum booster design
• Optimised for maximum performance with automatic thermal
management
Technical data:
| Unit | GXS 450/4200 |
| Peak Pumping Speed | m³/hr(cfm) | 3026(1781) |
| Ult mate Pressure(without purge) | mbar(Torr) | 5x10⁻⁴(3.8x10⁻⁴) |
| Full Load Power | @ultimate pressure | kW(hp) | 9.4(12.6) |
| @peak pumping load | kW(hp) | 21.1(28.3) |
| Electrical | Supply options | High volt | 380-460V 3Ø 50/60Hz |
| Low volt | 200-230V 3Ø 50/60Hz |
| Connection | High volt | Harting Han 100A-F |
| Low volt | Harting Han 200A-F |
| Vacuum Couplings | Inlet | ISO 160 |
| Exhaust | NW50 |
| Cool ng Water | Supply pressure(max) | bar(psig) | 6.9(100) |
| DP across pump(min) | bar(psig) | 1(15) |
| Flow @ min DP | l/min(gal/min) | 12(3.2) |
| Temperature | °C(°F) | 5-40(41-104) High Volt variants |
| 5-30(41-86) Low Volt variants |
| Connection | 1/2" BSP Male (G 1/2") |
| Purge Gas* | Pressurebar | (psig) | 2.5-6.9(36-100) |
| Light Duty | sl/min | 12 |
| Medium Duty | sl/min | 18-146 |
| Connection | Swagelok*ؼ"tube wth olve |
| High Flow Purge/Solvent Flush | Supply pressure | bar(psig) | 2.5-6.9(36-100) |
| Control valve connection | Swagelok*Ø3/8"tube with olve |
| Filter connection | ½"NPT Female |
| Solvent connection | 3/8"BSP Male(G 3/8") |
| Mass | Kg(Ibs) | 868(1914) |
| Noise(with suitable exhaust pipe) | dB(A) | <64 |
| Opera tng Temperature | °C(°F) | 5-40(41-104) |
| Exhaust BackPressure(MAX) | mbar(psia) | 1400(20) |
| System IP rating | Standard | | 21D |
| Lubrication | Type | PFPE Drynert®25/ 6 |
| Volume | l(gal) | 3.6(1.0) |
| Monitoring & Control | Standard | Control | Front panel"Dashboard"
Serial-RS 232 |
| Monitoring | Ethernet Webserver |
| Option | Control | Parallel-MCM Micro TIM |
| Control&Monitoring | Profibus DP
Pump Display Terminal(PDT) |
| Monitoring | Fab Works |
*Pump
combinations | | Light duty | Shat Seal Purge&High Vac Purge only |
| Medium duty | Shat Seal Purge, High Vac Purge,,Inlet Purge, variable Gas Ballast&Exhaust Purge(with Exhaust
Pressure Sensor) |
| Medium duty + | As Medium duty, plus High Flow Purge/Solvent Flush |
Dimensions(mm):
A:258.5(10.18)
B:283.5(11.16)
C:361.8(14.24)
D:332.3(13.08)
E:903.8(33.58)
F:83(3.27)
G:261.4(10.29)
H:1030.5(40.57)
J:/
K:1186(46.69)
L:517(20.35)
M:250(9.84)
