Edwards LR1D0035Pumping speed 20 m³/hUltimate pressure 30 mbar
Edwards LR1D0770 Bareshaft (without motor), material: grey cast iron with ductile iron impeller (“CI-DI”, Cast iron)
The Edwards LR1D0770 is a single-stage liquid ring vacuum pump with typically up to 476.7 m³/h (50 Hz), as a bareshaft pump. Ehrler & Beck advises on selection and service.
Request a quote for this product Read more
- Pumping speed 476.7 m³/h 50 Hz 578.7 m³/h 60 Hz
- Ultimate pressure 30 mbar
- Rated motor power 14.92 kW 50 Hz 18.65 kW 60 Hz
| Variant | Part number |
|---|---|
| Bareshaft (without motor), material: grey cast iron with ductile iron impeller (“CI-DI”, Cast iron) (selected) | LR1D0770BA10 |
| Bareshaft (without motor), material: grey cast iron with stainless steel 316 impeller (“CI-316”, Stainless steel fitted) | LR1D0770BA30 |
| Bareshaft (without motor), material: stainless steel 316 (“316”, Stainless steel full) | LR1D0770BB40 |
Edwards LR1D0770 – single-stage liquid ring vacuum pump
The LR1D0770 typically delivers up to 476.7 m³/h at 50 Hz and 578.7 m³/h at 60 Hz. Liquid ring pumps compress the gas in a rotating liquid ring; the operating liquid carries away the heat of compression. They tolerate vapours, moisture and entrained liquid.Features
- Single-stage design with valve plate
- Bareshaft version for drive via coupling or belt
- Materials from grey cast iron to stainless steel 316 for corrosive media
- Mechanical seals flushed via internal channels – only operating liquid required
Versions of the Edwards LR1D0770
The 3 versions differ in material.Advice and service
Ehrler & Beck supports you in selecting material and operating liquid and carries out maintenance and repair.| Pumping speed 50Hz | 476.7 |
|---|---|
| Pumping speed 60Hz | 578.7 |
| Ultimate pressure | 30 |
| Rated motor power 50Hz | 14.92 |
| Rated motor power 60Hz | 18.65 |
| Noise level | 82 dB(A) |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Single-stage liquid ring vacuum pump, bareshaft pump for drive via coupling or belt |
| Pumping speed 50 Hz (typical) | 250.9 / 376.9 / 476.7 / 472.6 m³/h at 67 / 133 / 400 / 533 mbar |
| Pumping speed 60 Hz (typical) | 310.4 / 465.5 / 578.7 / 575 m³/h at 67 / 133 / 400 / 533 mbar |
| Ultimate pressure (Edwards shop) | 30 mbar |
| Max. back pressure at the outlet | 1.2 bar absolute |
| Max. speed | 1450 min⁻¹ (50 Hz), 1750 min⁻¹ (60 Hz) |
| Max. motor power | 14.92 kW (50 Hz), 18.65 kW (60 Hz) |
| Sound pressure level | ≤ 82 dB(A) ± 3 dB (1 m, free field) |
| Vibration | 4.5 mm/s |
| Operating liquid | Water; data apply to water at 15 °C |
| Materials | Grey cast iron with ductile iron impeller, grey cast iron with stainless steel 316 impeller or stainless steel 316 |
| Bearings | Grease to DIN 51825 K2K-30 |
Edwards LR1D0035Pumping speed 20 m³/hUltimate pressure 30 mbarEdwards LR1D0060Pumping speed 42.6 m³/hUltimate pressure 30 mbarEdwards LR1D0100Pumping speed 69.5 m³/hUltimate pressure 30 mbarEdwards LR1D0135Pumping speed 101.1 m³/hUltimate pressure 30 mbarEdwards LR1D0170Pumping speed 117.7 m³/hUltimate pressure 30 mbarEdwards LR1D0260Pumping speed 168.5 m³/hUltimate pressure 30 mbarEdwards LR1D0340Pumping speed 252.7 m³/hUltimate pressure 30 mbarEdwards LR1D0510Pumping speed 336 m³/hUltimate pressure 30 mbarEdwards LR1D0940Pumping speed 729.6 m³/hUltimate pressure 30 mbarEdwards LR1D1280Pumping speed 951.5 m³/hUltimate pressure 30 mbarEdwards LR1D2040Pumping speed 1,340 m³/hUltimate pressure 30 mbar