Petro chemical

Vacuum expertise and application solutions

Edwards is a world leader in the design, technology and manufacture of dry vacuum products for process applications in the chemical, speciality chemicals and pharmaceutical industries. Our application expertise allows us to provide you with reliable vacuum solutions and to support you all the way, from the choice of your standard or customised system to long-term service agreements to give you complete peace-of-mind.

Our proven and rugged non-contacting dry pump designs, both screw and reverse claw mechanisms, include the ability to control pump body and internal gas  temperatures allowing a comprehensive range of solvents, flammables and corrosives to be pumped. The mechanisms can tolerate both liquids and particles in the gas stream and are suitable for many applications.

More about our vacuum products:

CXS Chemical Dry Vacuum Pump

CXS is Edwards most advanced chemical dry pump featuring new tapered-screw technology for exceptional energy efficiency and performance. It offers high reliability and effluent-free pumping even in the most difficult of harsh chemical and pharmaceutical processing applications.The CXS pumps up to one litre of liquid per minute continuously or up to 25 litre-slugs without stopping, and provides an ultimate vacuum down to 10-2 mbar. CXS is available in two sizes, with capacities of 160 m3h-1 and 250 m3h-1. Simple to use ‘Plug and Pump’ operation, Low noise level <64 dB(A) Integral controller (with inverter) for automatic pressure and temperature control, start up and shut down sequences, automatic cleaning procedure, Long service intervals with low cost of ownership and environmentally friendly

CDX Dry Vacuum Pump

Edwards CDX 1000 use a double-ended screw mechanism dry pump to provide peaks speed up to 900 m3h-1. This pump gives the ability to handle large volumes of dust and water vapour without any loss of performance while minimising maintenance requirements and running costs. The CDX dry pumps are capable of continually operating from atmosphere to ultimate and offer excellent temperature control with indirect cooling fitted as standard.

Simple to operate and maintain

High dust and water vapour tolerance

Consistent performance under harsh conditions

EDP Chemical Dry Vacuum Pump

Edwards EDP series incorporates our long proven, patented non contacting reverse claw mechanism to create an oil-free vacuum, preventing contamination of the process stream. These pumps are highly tolerant to liquids and particles in the gas stream and are capable of operating from atmosphere to ultimate pressure. In addition, an indirect cooling system prevents chemical reactions within the pump.

EDP is available in four sizes with capacities of 80 m3h-1, 160 m3h-1, 250 m3h-1 and 400 m3h-1.

Staged compression for optimum temperature profile within the pump which prevents condensate and hence corrosion

Able to handle liquid or particulate carryover

Short gas path eliminates particulate build-up

EH Mechanical Booster Pump

The EH mechanical booster pump, based on the simple Roots principle, remains the favourite pump for applications where high pumping speeds are required for pressures in the region of 0.01 to 10 mbar.

This pump must always be backed by another pump, which can deliver against a high pressure differential to atmospheric pressure.

Operating at relatively low pressures, the mechanical booster pump is not exposed to the same concentrations of corrosive process media as is the backing pump, which makes it highly reliable.

EH booster pumps have a unique and patented hydrokinetic fluid drive, which couples the motor to the pumping mechanism. The hydrokinetic drive offers the following advantages:

Pump down times cut by up to 50% when compared with direct drive pumps

Reduced capital and operating costs

No pressure sensors, by-pass lines or valves

Can operate continuously at all pressures when used with a backing pump

EH booster pumps have universal voltage, air-cooled motors and are available with nominal displacements of up to 4985 m3h-1 at 60 Hz (4140 m3h-1 at 50 Hz). The pump bodies of the EH1200, EH2600 and EH4200 pumps are water-cooled. Available  in temperature classes T3, T160, T4.

HV Mechanical Booster Pump

When high pumping speed is required our chemical dry pumping systems can be complemented with the HV range of mechanical booster pumps designed for large scale harsh industrial and chemical applications such as polymerisation or fatty acid deodorisation.

The HV8000 and HV30000, 7,200 m3h-1 and 30,000 m3h-1 nominal displacement at 50 Hz (8640 m3h-1 and 36,000 m3h-1 at 60 Hz) are controlled with variable frequency drives.

Analytical Instrumentation

Electron Microscopy (SEM, TEM), Focused Ion-beam Systems (FIB) and Surface Analysis Modern focused-beam systems such as SEMs, TEMs and FIBs use columns that project electrons or ions onto microscopic samples for analysis. Turbo molecular pumps are a key component in modern focused-beam systems because they offer fast, oil-free air evacuation of large sample chambers. Oil-free operation is a major requirement of many modern analysis applications.

Vacuum Metallurgy

Vacuum metallurgy takes place with melting, shaping, and treating of metals and alloys under reduced pressure that ranges from subatmospheric vacuum pressure to ultra-high vacuum. Ezzi vision supplies a full range of vacuum products for the successful application of vacuum metallurgy for clients throughout the world.

Electron Beam Welding

Ezzi vision sells and services a full range of vacuum pumps for electro-beam welding, serving clients around the world for their EBW vacuum needs.

Australian Defence force

Vacuum pump technologies are used extensively for research within all the branches of military contributing to maintaining its technological edge. Ezzi vision also sells and services the vacuum technologies which contribute to maintaining the technological superiority of this innovative research.

Food technology

Vacuum packaging is another way to increase the shelf life of food products. Products, placed in an air-tight pack, get the air sucked out and the package sealed. By removing air from around the product, the levels of oxygen in the packaging are reduced, impeding the ability of oxygen-breathing microorganisms to grow and spoil the product. Vacuum cooling is a rapid evaporative cooling technique, which can be applied to specific foods and in particular vegetables. Ezzi vision also sells and services full range of vacuum pumps or getting the maximum benefits of these applications


Ezzi Vision enables through Edwards Vacuum products, nanotechnology to succeed, from the initial research through to commercialisation – bringing the benefits of science to life. Clean controllable environments are key to success in this area, and Edwards dry vacuum technology is key to cleanliness and controllable process conditions. Ezzi Vision has long experience of high technology and can provide global support to ensure maximum uptime.

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