Extraction

  Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump ***Note: This item Will Ship by Freight only***   The EM range of oil‑sealed rotary pumps – renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapor – have become the industry standard for laboratory and light industrial applications. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single‑phase or three‑phase (four pole) air cooled motor.Each EM pump is supplied with 2 x 1 liter of Ultragrade 19 oil, O ring and centering ring, two Allen keys and spares seal for oil drain and filter plugs. For PFPE prepared FX pumps Fomblin® to be ordered separately.   Technology  The motor is totally enclosed and is cooled by the motor-cooling fan which directs air along the motor fins. The motors are fitted with a thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the motor cools down, the device resets and the motor will restart.An oil pressure system lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior after the pump stops. The pumping chambers are air-tight, so this arrangement also prevents suckback unless the gas ballast valve is open.You can inspect the level and condition of oil in the oil box reservoir through the oil sight-glass. An oil filler-plug is fitted to the top of the oil box. The pump has two oil drain-plugs to allow either gravity oil drain or pressure oil drain.   Features and Benefits  The pump is designed for reliable, long‑term operation. Thermal overload device prevents overheating (single phase only). The drive is provided through a flexible coupling by a single‑phase or three‑phase (four pole) motor. The motors are totally enclosed and are cooled by the motor cooling fan. Full height O ring sealed oil sight glass for easy checking of oil level and condition. Large sight glass and operating oil range. IE3 energy efficient 3 phase motor used with E2M28.   Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump. The EM range of oil-sealed rotary pumps - renowned for its high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapour - has become the industry standard laboratory and light industrial applications. The E2M28 pump is a two-stage, direct drive, sliding vane pump. The pump is oil sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single-phase or three-phase (four-pole) motor.     Specifications Displacement 50Hz 32.2 m3h-1 / 19 ft3min-1 60Hz 38.9 m3h-1 / 22.3 ft3min-1 Speed (Pneurop 6602) 50Hz 27.5 m3h-1 / 16.2 ft3min-1 60Hz 33.0 m3h-1 / 19.5 ft3min-1 Ultimate vacuum (total pressure) without gas ballast 1 x 10-3 mbar / 7.5 x 10-4 Torr with gas ballast 1.5 x 10-2 mbar / 1.1 x 10-2 Torr with Fomblin® 1 x 10-2 mbar / 7.5 x 10-3 Torr Inlet connection NW25 flange Outlet connection** Nozzle 15 mm external Ø removable from 3/4 in BSP tapped hole Max allowed pressure at outlet 0.5 bar gauge / 7 psig Max water vapour pumping rate – GB II 220 gh-1 Max inlet pressure for water vapour 30 mbar / 23 Torr Max water vapour pumping rate 0.7 kg h-1 Operating temperature range 13 – 40 °C Nominal rotation speed 1440 / 1720 rpm Motor power 50 Hz 0.75 kW Motor power 60 Hz 0.90 kW Power Connector 1-ph* IEC EN60320 C19 Weight 44 kg / 97 lbs Noise 57 dB(A) @ 50 Hz Oil capacity - max 1.5 litre Oil capacity - min 1.2 litre Recommended oil (supplied) Ultragrade 19     * Pumps listed with IEC connector only ** The FX are supplied with NW25 outlet connection    ** POWER CORD NOT INCLUDED. RECOMMEND FOR CUSTOMER TO WIRE PUMP TO OUTLET WITH EXACT LENGTH. DO NOT USE EXTENSIONS**   **RECOMMEND FOR CUSTOMER TO HAVE ELECTRICIAN WIRE PUMP TO OUTLET WITH EXACT LENGTH**       Pump Warranty Information Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™) If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void. These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties.  When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.) To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.

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Edwards RV8 6.9 CFM Dual-Stage Vacuum Pump Edwards RV pumps have become the industry standard for scientific primary pumping applications. RV pumps are uniquely capable of delivering high or low throughputs with high ultimate vacuum. This, combined with ultra-low noise levels, makes them ideal for a wide range of applications including GCMS and other small bench top type applications.All pumps are approved to UL standards by an external test house. Edwards has a global network, providing world-wide support for product applications and service.Supplied with: 1 litre of Ultragrade 19 oil, inlet filter and O-ring. Fomblin must be purchased separately for PFPE RV pumps. Technology All our RV pumps are significantly quieter noise levels of 48 dBA 50Hz are typically half the noise of a conventional pump and have been achieved by extensive work on the drive train and motor. The pumps have the unique ability to deliver excellent ultimate vacuum in both high vacuum and high throughput modes with or without gas ballast. This gives the user an unrivalled opportunity to select the optimum pumping performance without compromising the application. In its high vacuum mode, the RV pump is ideal for analytical instruments, electron microscopes, physics research, backing turbo pumps, TV tube pumping and leak detection applications. Configure the same pump in the high throughput mode, and it becomes suitable for mass spectrometer inlet systems, distillation, laboratory furnaces, backing vapor pumps, solvent concentration, freeze drying and other drying applications. The simple to use mode selector and accessible, three-position gas ballast control allow the pump to be reconfigured at any time, even when the pump is running.   Applications Analytical instruments Centrifuges, ultra-high speed Coating Degassing/curing - oil, epoxy resin Distillation/extraction/filtration Freeze drying Furnaces Gas bottle filling/emptying Gel drying Glove boxes, ovens Laboratory bench top vacuum Leak detectors, Helium Load locks and transfer chambers Refrigeration manufacture Research and development Rotary, centirfugal evaporators Scanning electron microscopes - SEM SEM/FIB (ion beam repair) Solvent recovery Surface science instruments Turbomolecuar backing pumps Specifications    Model  RV8  Vacuum pump type  Dual stage rotary vane  Power  110V 50/60Hz 1-PH 5A or 220V 50/60Hz 1-PH 2.1A  Power connection  US standard 3-prong plug (NEMA 5-15P)  Motor power at 50Hz  450 watts  Motor power at 60Hz  550 watts  Peak pumping speed  6.9 CFM at 60Hz  Ultimate vacuum without gas ballast  1.5 micron/millitorr  Ultimate vacuum with gas ballast  60 micron/millitorr  Unit dimensions (WxDxH)   18.5 x 6.2 x 8.9"  Shipping dimensions (WxDxH)  31 x 11.5 x 19"  Max water vapor inlet pressure  28.5 torr (38 mbar)  Max allowed pressure at outlet  0.2 bar gauge/2.8 psig  Operating temperature range  54°F to 104°F (12°C to 40°C)  Oil capacity  Minimum 0.48 quart (0.45 L), maximum 0.8 quart (0.75 L)  Oil type  Ultragrade 19  Nominal rotation speed at 50/60Hz  1500/1800 rpm  Noise level  48 dB(A)  Inlet connection  NW25/KF25  Outlet connection  NW25/KF25  Unit weight  57 Lbs  Shipping weight  70 Lbs  Users manual  Click here to download  Certification  CE, UL

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