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Edwards E2M175 Two Stage Rotary Vane Vacuum Pump

Edwards E2M175 Two Stage Rotary Vane Vacuum Pump
    Item Number: VJDMIWZHGK

    Warranty: 1 year past the documented date of installation.

     


    Please call for price and availability
    855-466-6822

    IN STOCK - Please call for price and availability 855-466-6822

    Edwards E2M175 Two Stage Rotary Vane Vacuum Pump

    Edwards EM Oil Sealed Rotary Pumps

    Edwards rugged two stage mechanical oil sealed pumps are available in sizes from 40 to 275 m3h-1 / 30-206 ft3min-1. They feature:

    • Advanced oil lubrication circuit
    • High reliability
    • Accessories to match your application needs

    Application and Accessory Information EM Rotary Pumps

    The use of Edwards rotary pumps with our comprehensive range of accessories will result in enhanced performance and reliability. The information below will help you to select the correct accessories for your application. However, we recommend that you treat this as a guide only, because the final selection of components can be influenced by the operation of your vacuum system and the process by-products. If in doubt, please contact Edwards or your local supplier for further advice from an Edwards application specialist.

    When you select accessories for your system, the major aim is to prolong the life and the safe operation of the pumps and to ensure that the system continues to perform at its ultimate specification. To do this, you need to ensure that the system is able to accommodate the process media and any process by-products, including vapors, liquids or particulates, which may damage the pumps. At the same time, you should ensure that any materials discharged from the system to atmosphere are not harmful to the environment and to people nearby.

    Broad Application Coverage

    Industrial

    Industrial EM primary pumps are annotated with the suffix "IND".

    EM primary pumps are safe to handle non-flammable gases and vapors within the normal operating parameters of the pump.

    Flammable gases and vapors may also be pumped, provided they are outside the flammable range, please consult Edwards for advice.

    PFPE

    EM primary pumps may be supplied for use with PFPE oil. This enables them to be used in harsh (corrosive) processes, or where the presence of Oxygen will result in rapid degradation of hydrocarbon oils.

    ATEX

    • EM primary pumps (hydrocarbon oil only) may be supplied with ATEX classification either as part of a pump system or stand-alone. Please consult Edwards.
    • ATEX compliance is typically specified for use in Europe, but may also be required in other areas.

    ATEX compliant EM primary pumps are suitable for operation in ATEX systems rated as follows:

    Pump Classification Internal Classification External Classification
    E2M40 & E2M80
    E2M175 & E2M275
    (Ex) II 3 Gc IIB T4
    (Ex) II 3 Gc IIB T3
    (Ex) II 2 G IIB T4
    (Ex) II 2 G IIB T160

    Where the following classification...

    Symbol Meaning
    (Ex)
    II
    3 (Int) 2 (Ext) G
    IIB
    T4 T160 T3
    Specifies that an ATEX-compliant EM pump can be used in a potentially explosive atmosphere
    Equipment Group - II = non-mining equipment
    Equipment Category 3 (or 2) - G = Gas
    Gas Group - Suitable to pump gases in gas group IIB Where no gas group is mentioned, there are no limitations
    Temperature Class - Gas auto-ignition temperature greater than: - T4 = 135 °C, T160 = 160 °C, T3 = 200 °C

    A four-pole, three-phase ATEX approved flameproof motor provides direct drive through an ATEX certified flexible coupling to the E2M40, E2M80, E2M175 and E2M275 pumps. A cooling fan is attached to the drive coupling on the E2M40 and E2M80 pumps. The E2M175 and E2M275 pumps are water-cooled.

    Lubrication is provided by a sliding vane oil pump, which delivers pressurized oil to the vacuum pumping mechanism.

    Pumps are supplied with sealed Gas Ballast. Plugs have been fitted to prevent flammable atmospheres accidentally entering the pump. If the gas ballast facility is required, an N2 purge must be used, or clean air supplied from a safe area.

    For much of the operating cycle the pump operates at pressures significantly below 0.8 bar (11.6 psi) absolute. However, the final stage of the pump will exhaust to atmosphere and there is a startup and shutdown period where the whole pump is briefly operating at atmospheric pressure.

    A surface temperature thermal snap switch is fitted to the body of the E2M175 and E2M275 rotary pumps. This must be connected to an intrinsically safe circuit suitable for the hazardous zone in which it may be located; otherwise it must be located in a safe area. If the pump temperature should rise due to a fault condition, the snap switch activates and the pump will shut-off.

    Trapping Particulates

    In any application, first ensure that particulates in the process stream are trapped before they get into the pump: use the ITM or ITF inlet filters which are suitable for use with oil-sealed and dry pumps. However, in processes which generate or contain large amounts of particulates, some will enter the pump: use our EOF an external oil filter to remove particulates from the pump oil during operation.

    ITF inlet dust filters: If the mechanical pump is a backing pump for a diffusion pump, the diffusion pump will trap particulates during normal operation, but the diffusion pump will not trap dust during the roughing stage of the process cycle. We recommend you fit an ITF filter to the mechanical pump inlet (that is, in the foreline): this filter has a replaceable element. Note that the impedance of a clean filter will cause the pumping speed to decrease by about 10% at 1 mbar and 20% at 10-2 mbar. The ITF filter is more that 96% efficient, when tested in accordance with BS2831.

    ITM High Capacity Inlet Dust Filters: Use an ITM filter for applications where there is a high load of dust and particulates. Fit the ITM directly to the inlet of a rotary or mechanical booster pump. This filter has a stainless steel mesh element that can be washed and reused. It is ideal for use when backing diffusion pumps or for wet processes where a paper filter may become blocked quickly. The ITM filter has high conductance and is therefore ideal for applications which require fast pump down times. The ITM filter has an efficiency of 90%, when tested in accordance with BS3831.

    EOF External Oil Filters: Use the EOF's with the EM oil-sealed rotary pumps, to remove particulates trapped in the pump oil. There are two types of EOF filter.

    The EOFA and EOFM filters use the internal pressurized oil system of the pump to continually filter a proportion of the pump oil. These filters are only suitable for hydrocarbon oil. The EOFM filter removes particulates down to 0.5 microns, and the EOFA filter both removes particulates and includes an active element to remove acidic and other aggressive contaminants from the oil.

    EOF pumped external oil filters have their own oil re-circulation pump. The re-circulation pump has a high flow rate and allows large quantities of oil to be filtered. The filter is fitted with a gauge which indicates when the filter need to be changed. This filter is suitable for hydrocarbon and PFPE oils.

    Pumping Vapors

    The use of gas ballast significantly improves vapor handling capability of oil sealed rotary pumps. We offer a number of accessories to improve the utility of gas ballast.

    EBV Gas Ballast Control Valve: Fit EBV gas ballast control valve to allow remote or automated control of gas ballast.

    TCV Temperature Control Valve: The vapor pumping performance of the larger oil sealed pumps can be enhanced by fitting a TCV. Use the TCV both to warm-up the pump faster (which reduces the amount of condensation in the pump) and to reduce water usage and cost.

    ITC Inlet Chemical Traps: Fit an ITC trap to the inlet of the pump to protect against the aggressive process vapors that may corrode the pump or degrade the oil.

    Trapping Liquids

    The use of gas ballast allows an oil sealed pump to process significant quantities of vapor. However, oil sealed pumps can not pump liquid streams and it is important both to remove liquids before they reach the pump inlet and to prevent condensed liquids from flowing back into the pump outlet. The following accessories may be suitable for your application:

    ITO Inlet Trap: The ITO inlet trap is ideal for processes where there is a risk of liquids in the process entering the pump inlet. Fit the ITO trap to the pump inlet or elsewhere in the foreline.

    CP Catchpot: Process vapors passing through the pump may condense after the pump outlet, in the exhaust line. Fit a CP catchpot to the pump outlet to trap the condensates and prevent them flowing back into the pump.

    Exhaust Management

    You should aim to minimize the impact of gases and vapors which exhaust from the pump outlet. Edwards offers a range of exhaust management systems for the most exacting applications. However, for most straight-forward applications of oil sealed rotary pumps, we recommend that you fit an oil mist filter to the pump outlet to remove oil mist vapor. A mist filter is not required if you vent the exhaust gases remotely or pass them through exhaust scrubbing equipment.

    MF Oil Mist Filters: The MF filters remove oil mist (vapor) from the process gases exhausted from the outlet of an oil sealed pump. The filters remove both odor and oil vapor and so prevent it from reaching the atmosphere and the workplace.

    Back Migration

    When operated at ultimate pressure for extended periods of time, any oil sealed pump allows oil vapor to back migrate into the process chamber. The back-migration of oil vapor could contaminate your process or your vacuum system.

    ITC Inlet Chemical Trap: Fit an ITC inlet chemical trap (filled with an alumina charge) to the pump inlet to trap oil vapor and to prevent back migration.

    Applications

    • Refrigeration dehydration
    • Brake line evacuation
    • TV aluminizers
    • Vacuum metallurgy
    • Fluorescent light tube pumping
    • Thin film coating
    • IT hard disc coating
    • Vacuum distillation
    • Cryogenic vessel evacuation
    • Transformer and cable drying
    • Pharmaceutical freeze drying
    • Space simulation
    • Crystal growing
    • Automotive
    • Chemical processing

    Edwards E2M175 series two stage oil sealed rotary vane vacuum pumps are renowned for their high ultimate vacuum, rapid pumping speeds, quiet operation and ability to handle water vapor. These direct drive rotary vane pumps are inherently compact and vibration free, and with their finger-proof fan and coupling housings they offer excellent operator protection.

    This pump is suitable for most duties and is safe to handle non-flammable gases and vapors within the normal operating parameters of the pump.

    Features & Benefits

    • Advanced pressurized oil circuit to give effective lubrication even under high gas loads
    • When the pump is switched off, the spring loaded distributor valve provides oil and air suck-back protection
    • Gas Ballast control to assist in handling high water vapor loads
    • Industrial roller bearings on drive shaft for ultimate reliability and long, trouble free life
    • Full height oil sight glass for easy checking of oil level and condition

    Applications

    • Vacuum metallurgy processes
    • Thin film coating technologies
    • Pharmaceutical freeze drying
    • Refrigeration and air conditioning system evacuation, drying, and backfilling
    • Transformer and cable drying and impregnation, insulating oil treatment plant
    Displacement
    50Hz
    60Hz

    178 m3 h-1 / 105 ft3 min-1
    214 m3 h-1 / 126 ft3 min-1
    Speed (Pneurop)
    50Hz
    60Hz

    160 m3 h-1 / 94 ft3 min-1
    196 m3 h-1 / 115 ft3 min-1
    Number of stages 2
    Ultimate vacuum (total pressure)
    Without gas ballast
    With gas ballast

    1.0 x 10-3 mbar / 7.7 x 10-4 Torr
    7.0 x 10-3 mbar / 5.4 x 10-3 Torr
    Inlet connection ISO63 blank flange with seal
    Outlet connection ISO40 flange center tapped
    Maximum outlet pressure 0.5 bar gauge
    Maximum inlet pressure for water vapor 20 mbar / 15 Torr
    Maximum water vapor pumping rate 0.3 kg h-1 / 0.7 lb h-1
    Weight 200 kg / 441 lb
    Motor protection rating IP44
    Motor power
    50Hz
    60Hz

    5.5 kW / 7.5 hp
    6.5 kW / 8.5 hp
    Standard oil capacity
    maximum
    minimum

    25 liter / 26 qt
    16 liter / 17 qt
    PFPE oil capacity
    maximum
    minimum

    18 liter / 19 qt
    6.5 liter / 6.9 qt
    Recommended oil Ultragrade 70
    Noise level 75 dB (A)

    IVS is committed to your complete satisfaction.  To ensure the greatest success and performance of your new vacuum equipment purchase, please call an IVS representative today at 855-466-6822 or simply fill out our contact form here: Contact IVS and a Sales Engineer will contact you within 24 hours.

    Not exactly what you're looking for? Innovative Vacuum Solutions is a total solutions provider and can customize or configure your vacuum equipment. Call us toll free at 855-466-6822 and speak to a Sales Engineer to determine your specific needs.

    Warranty

    Our precision vacuum pump rebuild process restores worn or damaged equipment back to the original manufacturers specifications and
    costs a fraction of purchasing new components. Each unit reconditioned by IVS is supported by the most competitive,
    practical warranty in the business: one year from the documented date of installation, not shipment.

    Click here to see the full IVS Business Practical Warranty
    • IVS will safely package your product for shipment at no additional charge.
    • Buyer is responsible for all shipping arrangements and charges.
    • Please allow ten days for delivery from order date to allow for certification and shipping of your equipment.

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