CDX Chemical Dry

CDX Chemical Dry

Dry Pumps

Edwards CDX1000 represents the latest generation of dry pump technology. The CDX1000 is a double-ended screw mechanism for the chemical process, pharmaceutical and petrochemical industries. Featuring an innovative double-ended screw mechanism, our CDX pumps have a pumping capacity of 900 m3h-1 (per hour) – perfect for your larger processes where repeatability and reliability are key.

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900 m³/h

Plus larger capacities if combined with Roots Boosters

Atm. to 0.005 mbar

Increased productivity and product quality

Industry tested

Specifically designed for chemical applications

Designed for safety and reliability

Stable operation, even during process upsets

Low cost of ownership

Easy maintenance, low utilities consumption and no cooling gas injection required

High throughput processes

When you work in critical applications, you need a reliable pump. The CDX pump is a robust high-performance machine that is highly tolerant to process malfunctions, delivering continuous performance you can rely on, from atmosphere to ultimate vacuum.

Application-specific modules

A range of Edwards’ low-cost pre-engineered modules can help you to meet your specific application needs. Our customised systems include tailored applications support to help you maximise performance in a wide range of process conditions.

Saving you operating costs

Cooled, filtered oil for the bearings and rotor stub shafts avoids carburization and degradation, allowing you to save on costs by increasing mean times between maintenance and extending the overall life of the pump.

Easy to maintain

The CDX is designed to minimise your scheduled downtimes, from line maintenance to overhaul. On-site maintenance and cleaning options include bearing and seal change and cleaning of flame arrestors, with minimal process line disturbance.

Technical Specifications

	Units	50/60 Hz
Maximum pumping speed	m³h⁴	900
Maximum pumping speed	ft³min⁴	530
Capacity at 10 mbar (7.5 Torr)	m³h⁴	900
Capacity at 10 mbar (7.5 Torr)	ft³min⁴	530
Ultimate vacuum	mbar	0.005
Ultimate vacuum	Torr	0.004
Maximum back pressure – standard	mbarA	1150
Maximum back pressure – standard	psig	2
Power consumption at 10 mbar (7.5 Torr)	kW	17.1
Power consumption at 10 mbar (7.5 Torr)	hp	23.2
Standard motor (380 – 460 ± 10%, 3 ph, 50 Hz)	kW	30
Standard motor (380 – 460 ± 10%, 3 ph, 60 Hz)	hp	40
Cooling water flow rate (adjustable)	l min⁴	Oct-20
Cooling water flow rate (adjustable)	gal min⁴	2.64 – 5.28
Cooling water supply temperature range	°C / °F	5 – 35 °C / 41 – 95 °F
Cooling water supply pressure	barg	2-Oct
Cooling water supply pressure	psig	29 – 145
Seal purge flow (maximum), regulated to 0.3 – 0.5 barg (5 – 7 psig)	l min⁴	24
	ft³ min⁴	0.85
Seal purge supply pressure (minimum – maximum)	barg	2-Oct
Seal purge supply pressure (minimum – maximum)	psig	29 – 145
Noise (maximum with exhaust silencer)	dB(A)	82
Weight (with frame and standard motor)	kg	1710 / 1705
Weight (with frame and standard motor)	lbs	3765 / 3745
Process connection, inlet	ANSI/DIN	6″/DN150
Process connection, outlet	ANSI/DIN	3″/DN80
Pumping mechanism	Variable pitched screw

Chemical applications knowledge

You can call on our expert applications engineering to help you optimise:

Process design
Equipment selection
Integration into the plant control philosophy
Safety considerations
Advice at start-up, commissioning and training

Our experienced chemical applications team are here to provide expert advice on the correct pumping system for your process, anywhere in the world.

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