Edwards EXS160Pumping speed 160 m³/hUltimate pressure 0.01 mbar
Edwards EXS250/2600 A41850914 3Ph 380–460 V 50/60 Hz (HV), rear outlet, with castors (Edwards designation EXS250/2600 HV MD RE CA)
The Edwards EXS250/2600 is a combination of a dry screw pump and a Roots booster in one unit, with a pumping speed of 1900 m³/h and an ultimate pressure below 1 × 10⁻³ mbar. The EXS series builds on the GXS screw technology and focuses on simple operation and low operating costs. Ehrler & Beck advises on selection and service.
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- Pumping speed 1,900 m³/h 50 Hz 1,900 m³/h 60 Hz
- Ultimate pressure 1 × 10-3 mbar
- Rated motor power 15 kW 50 Hz 15 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 380–460 V 50/60 Hz (HV), rear outlet, with castors (Edwards designation EXS250/2600 HV MD RE CA) (selected) | A41850914 |
| 3Ph 200–240 V 50/60 Hz (LV), rear outlet, with castors (Edwards designation EXS250/2600 LV MD RE CA) | A41850915 |
Edwards EXS250/2600 – dry screw pump with integrated Roots booster
The EXS series uses the same screw technology as the GXS pumps but is designed for simplicity and robustness. The EXS250/2600 reaches a typical maximum pumping speed of 1900 m³/h and an ultimate pressure below 1 × 10⁻³ mbar; the motor power is 7.5 kW pump + 7.5 kW booster. A built-in frequency converter allows speed control and energy savings.Features
- Tapered screw with variable pitch (Quinby profile); rotors supported at both ends for very low vibration and reliable starting
- Non-contact labyrinth shaft seals with oil barrier; the shaft seal purge keeps oil out of the pumping chamber
- Constant cooling water flow; gas ballast adjustable by hand
- Modbus RTU as standard, digital and analogue inputs and outputs; optional communication cards for further fieldbuses
Typical applications
Edwards names lithium-ion battery production (electrode drying, electrolyte filling, formation), metallurgy (vacuum brazing, electron beam welding, nitriding, low-pressure carburising, sintering, investment casting, steel degassing), plasma processes, solar (crystal pulling, laminating), coating and the evacuation of vacuum chambers.Versions of the Edwards EXS250/2600
The 2 versions differ in the mains voltage (HV 380–460 V, LV 200–240 V).Advice and service
Ehrler & Beck supports you in selecting the right version and accessories and carries out maintenance and repair.| Pumping speed 50Hz | 1,900 |
|---|---|
| Pumping speed 60Hz | 1,900 |
| Ultimate pressure | 1 × 10-3 |
| Rated motor power 50Hz | 15 |
| Rated motor power 60Hz | 15 |
| Weight | 554 |
| Length | 126.5 |
| Width | 52 |
| Height | 79.8 |
| Inlet connection flange | ISO160 |
| Outlet connection flange | NW40 |
| Noise level | 64 dB(A) |
| Cooling method | Water cooling |
| Oil type | PFPE |
Convert units: vacuum and pressure units · Nm³/h to m³/h
Additional technical data
| Technical data | Value |
|---|---|
| Design | Combination of dry screw pump and Roots booster in one unit, water-cooled, with built-in frequency converter |
| Typical max. pumping speed | 1900 m³/h |
| Ultimate pressure (shaft seal purge only) | < 1 × 10⁻³ mbar |
| Max. continuous inlet pressure | 1000 mbar |
| Max. outlet pressure | 1.2 bar absolute |
| Rotor speed | Pump 6600 min⁻¹, Booster 6120 min⁻¹ |
| Motor power | 7.5 kW pump + 7.5 kW Booster |
| Power consumption at ultimate pressure | 5.3 kW |
| Power consumption at full load | 9.7 kW |
| Supply | 3Ph 380–460 V or 200–240 V ±10 %, 50/60 Hz (depending on the version) |
| Rated current | 380–460 V: 27–22 A; 200–240 V: 50–42 A |
| Dimensions L × W × H (housing) | 1265 × 520 × 798 mm |
| Mass (without packaging) | 554 kg |
| Sound pressure level (at ultimate pressure, outlet piped) | < 64 dB(A) |
| Vibration at the inlet | < 1.5 mm/s |
| Connections | Inlet ISO160, outlet NW40 |
| Lubricant | PFPE Drynert 25/6 (recommended), alternatively Fomblin 25/6 or Krytox 1525; 1.4 l |
| Cooling water | Connections G ⅜" (female thread), 5–40 °C, max. 6.9 bar gauge, minimum flow 7 l/min (depending on the ambient and water temperature) |
| Purge gas | Connection ½" BSP (female thread), 2.5–6.9 bar gauge, ISO 8573 class 2; shaft seal purge 12 slm, gas ballast 0–50 slm |
| Ambient temperature | 5 to 40 °C, installation altitude up to 2000 m |
| Type of protection | IP2X |
| Materials (in contact with the process) | Stator, rotors and shafts ductile iron; seals PTFE and fluoroelastomer |
| Product name | Part number |
|---|---|
| XTRAGRADE ADVANCED 276, 1 litres | H11041111 |
| Control cabinet ventilation filter kit | 3490790547 |
| Product name | Part number |
|---|---|
| Inlet dust filter ISO160 | M58810102 |
| Inlet gas/liquid separator ISO160 | M58810122 |
| Outlet check valve kit NW40 | A50782000 |
| Cleanable silencer NW40 | M58810140 |
| Cleanable silencer NW40 with bottom drain | M58810142 |
| Quick coupling ½" for cooling water | 3002615139 |
| Multi-protocol card (without housing) | M58810169 |
| Multi-protocol module (with housing) | M58810170 |
| Profibus module for GA500 | M58810147 |
| EXSEye communication cable (DB9 to type C) | M58810153 |
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