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Issue N Original Instruction Manual

We, Edwards, Manor Royal, Crawley, West Sussex RH10 9LW, UK declare under our sole responsibility that the product(s) E1M18 and E2M18 Rotary Vacuum Pumps: AXXX - YY - ZZZ Pump Type Variant Motor Description XXX YY ZZZ 343 = E1M18 10 to 99 903 = 220v 0.75kw 363 = E2M18 904 = 100/200v 912 = 220v 0.55kw 920 = 220v 50/60hz 930 = 220v 0.75kw


Edwards nXDS Dry Scroll pump provides excellent vacuum levels, vapour pumping capability while been quiet and offering ultra-low maintenance intervals that even the customer can carry out. Overall it provides superior performance and reliability together with very low running and maintenance costs.


Edwards guidelines on vacuum pump and vacuum system safety (see the Associated publications at the end of the Contents list at the front of this manual), or contact Edwards for advice. . Use an inert gas purge into the pump gas ballast connection to prevent the condensation of flammable vapours within the pump mechanism and exhaust pipeline .

Rental Vacuum Pumps | US Vacuum Pumps

LRV-350NC Air ejector System: 175cfm, 25Hp, 460v, 11GPM water usage, MAX Vacuum 10 Torr (mmHg) w/ 60 Deg Water) 450/Week

RV3, RV5, RV8 and RV12 Rotary Vane Vacuum Pumps

vacuum pumps. The pump has NW25 inlet (4) and outlet (7) ports, a gas-ballast control (5) and a mode selector (11). When the pump is switched off, an inlet-valve seals the inlet and prevents the suck-back of air and oil into the vacuum system. The RV3 and RV5 pumps have a retractable lifting handle (3). The RV8 and the RV12 pumps

Kurt J. Lesker Company | Edwards RV Series | Vacuum .

Edwards Presents Oil Sealed Rotary Vane Pumps. . Partial Without Gas Ballast 2.00 x 10-3 hPA 2.00 x 10-3 mbar 2.00 x 10-1 Pa 1.00 x 10-3 Torr. Total With Gas Ballast 1.20 x 10-1 hPA 1.20 x 10-1 mbar 1.20 x 10 1 Pa 9.00 x 10-2 Torr. . With over 450 vacuum pumps to choose from, the KJLC .

What is the gas ballast on a vacuum pump for?

Aug 12, 2016 · A simple explanation of the gas ballast on a vacuum pump. . Edwards Vacuum E2M28 Rotary Vane Pump Overview - Duration: 1:39. A & J Vacuum Services 13,838 views. 1:39.

Edwards RV3 Vacuum Pump, Single Phase, 115/230 V, 50/60 Hz .

Motor on/off switch. Patented Vacuum mode switch - High Vacuum or throughput in one pump Edwards RV 3 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.

Edwards XDS Dry Vacuum Scroll Pump Conversion - Waters

The Edwards XDS series Dry Vacuum Scroll Pump conversion provides a clean, dry and lubricant-free vacuum. This environmentally superior alternative to the standard oil-sealed rotary vacuum pump results from the pump bearings being located away from the main vacuum envelope.

Ballast the MS vacuum pump - YouTube

May 06, 2015 · What is the gas ballast on a vacuum pump for? - Duration: 0:56. Cuddon Freeze Dry 14,693 views. 0:56. . Edwards Vacuum Pump XDS5 and XDS10 Tip Seal Change - Duration: 10:02.

Edwards XDS35i Oil-Free Dry Scroll Vacuum Pump A73001983XS .

The adjustable gas ballast allows vapor to be handled and opens up the range of applications to many that were previously unsuited to scroll pumps. This BOC Edwards XDS35i Oil-Free Dry Scroll Vacuum Pump is designed for pumping condensable vapors, and uses materials selected for a wide range of laboratory applications. **Unit has 11,928.6 hours.

Edwards A65501906 RV12 Two Stage Rotary Vane Pump .

RV12 Two Stage Rotary Vane Pump 115/230V, 1-ph, 50/60Hz, Factory set to 115V for USA; High reliability - generous lubrication of moving parts; Configured to meet your vacuum needs - mode selector and two position gas ballast; No unplanned downtime - designed for easy maintenance; Better work environment - quiet running and intrusive frequencies minimized; Safe process and systems - fast .

RV Rotary Vane Pumps - Edwards

The Edwards RV series of oil sealed rotary vane pumps are unique in their capability to offer both high vacuum and high throughput performance, which combined with ultra-low noise levels and excellent gas ballast facility, makes them ideal for a wide range of applications and environments. These are available with speeds ranging from 3 to 12 m3/hr.

The Rotary Vane (RV) Vacuum Pump

Sep 24, 2018 · The Edwards "RV" (simply meaning Rotary Vane) laboratory sized oil sealed rotary vane vacuum pumps have been in the market since 1993. They have a very unique design with no equal. This article will attempt to show the reasons for its design and introduction and then explain the features of the vacuum pump that make it one of the best small vacuum pumps available today.

Edwards E2M40 Manuals | ManualsLib

Water Pump; E2M40; Edwards E2M40 Manuals . Instruction Manual . Edwards E2M40 Instruction Manual (64 pages) rotary vacuum pumps. Brand: Edwards | Category: Water Pump . Fine Oil-filter and Gas-ballast Bearing-plate Locations. 35. Replace the Gas-ballast Filter. 36.

The function and principle of gas ballast valve - vacuum pump

Adopts the method of gas ballast, although achieved the purpose of exclusion of steam, but due to the aeration increasing the potential breakthrough to leak into the atmosphere to the suction side, so to have influence on the pumping speed and limiting vacuum pump.Pump in the aeration process, and its ultimate vacuum than not aeration falls 1 .


If you pump oxygen or other dangerous gases and vapours, you must use a chemically inert and stable oil (such as perfluoropolyether). For information on pumping dangerous gases and vapours, refer to the Edwards guidelines on vacuum pump and vacuum system safety (see Associated Publications at the end of the contents list).

Edwards 25907200 FILTER,BALLAST - Vacuum Pump Supply llc

Rebuilt Edwards Vacuum Pumps; Alcatel Refurbished Vacuum Pumps; Leybold Refurbished Vacuum Pumps; Rebuilt Welch Pumps; Repair and Replacement Parts. . Edwards A22305041 Ballast Filter Felt for E2M175,E2M275 10.00. Edwards 02308043 FILTER,GAS BALLAST 6.52. Edwards 22305041 FILTER,FELT BALLAST 5.00.

Gas Ballasting of Vacuum Pumps (Part 2) | 2017-01-10 .

Jan 10, 2017 · Effect of gas ballast on pump performance (courtesy Edwards Vacuum) Fig. 4. Oil-mist filter and oil return line on a rotary-vane pump (courtesy Edwards Vacuum) January 10, 2017. . Many heat treaters ballast their vacuum pumps for 20-30 minutes at the beginning of each day while planning their schedules and preparing loads to be run. Make it .

Edwards RV8 Vacuum Pump - EMSDIASUM

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. The Edwards RV8 Vacuum Pump can be used in a variety of applications: Analytical instruments; Centrifuges, ultra-high speed; Coating; Degassing/curing – oil, epoxy resin

Blogging about rough pumps is a ballast .

The ballast is particularly important when dealing with the two following scenarios: Your vapor stream carries solvent vapors that condense in the rough pump oil and ruin ultimate vacuum via loss of lubrication by dilution. Your vapor stream carries water .

Gas Ballasting of Mechanical Oil Sealed Rotary Vacuum Pumps

Jun 15, 2013 · The correct use of the Gas Ballast valve on a mechanical oil sealed rotary vacuum pump has always been seen as "black science" or just plain guesswork. It is a very simple device and when used correctly can keep a vacuum pump working well even though it may be used on a very wet process and the oil becomes contaminated with condensed vapors.

XDS35i 100-120/200-230V 1 ph 50/60Hz set to 230V - Edwards

XDS scroll pumps have become industry standard when dry pumping is essential, proving to be a robust and clean vacuum pump solution in a range of applications and processes. XDS35i and XDS35i Enhanced pumps are available as standard pumps with gas ballast, versions of the pump with no Gas Ballast (well suited for rare gas recirculation and gas .

Edwards RV5 Vacuum Pump-NEW (A72601906)

Edwards RV5 pumps have become the industry standard for scientific primary pumping applications.Edwards RV5 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.

Oil Leaking at Pump Exhaust of Edwards RV12 - CR4 .

Jan 24, 2013 · finally if the problem for gas ballast control, here is the procerdure of this controller as per Edwards manual. 4.2.3 Gas-ballast control. Use the gas-ballast control to change the amount of air (or inert gas) introduced into the low vacuum. stage of the pump (refer to Section 1.4.2). Use of gas-ballast will prevent the condensation of vapors in

Edwards RV8 Vacuum Pump - EMSDIASUM

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. The Edwards RV8 Vacuum Pump can be used in a variety of applications: Analytical instruments; Centrifuges, ultra-high speed; Coating; Degassing/curing – oil, epoxy resin

Edwards Gas Ballast Adaptor for nXDS6i, nXDS10i and .

Edwards Vacuum Gas Ballast Adaptor for nXDS6i, nXDS10i and nXDS15i Dry Scroll Pumps. The Edwards Vacuum nXDS series is the next generation in completely oil free, dry scroll pumps and replaces the XDS series.

Edwards XDS10, XDS5, Dry Scroll Vacuum Pump, Users Manual

The pump is mounted on a baseplate on rubber feet. Details of suitable vibration isolators and other accessories are provided in Section 7. 1.4 Gas-ballast control To pump high vapour loads, gas-ballast is delivered into the pump to prevent condensation of the vapour carried by the pumped gases. Air can be introduced to the low vacuum stages

Instruction Manual For Edwards XDS35i Dry Scroll Vacuum Pump

The XDS is a truly dry vacuum pump, as all the bearings, with their hydrocarbon lubricant, are isolated from the vacuum space. The inlet of the pump has a NW40 (1) inlet and inlet strainer. 1. NW40 inlet port 2. Gas ballast control 3. Cooling fan 4. NW25 exhaust port 5. Fan connector 6. Rubber feet 7. Electrical connector 8. Voltage changeover .

Kurt J. Lesker Company | Edwards EM Series (Small .

Edwards EM Series (Small) E2M0.7 / 1.5. The E2M0.7 and E2M1.5 pumps are two-stage, direct drive, sliding vane pumps. The pump is oil-sealed and designed for reliable, long-term operation. . Gas ballast valve for water vapour handling capacity; . With over 450 vacuum pumps .