Pressure Swing Dryers (PSD2 & PSD4)

Mærke: Michell Instruments

Tags: Pressure, Swing, Dryers, (PSD2, PSD4), Michell, Instruments

Pressure Swing dryers provide a source of very dry compressed air for use as a zero gas in humidity calibration systems, or for general laboratory applications.
The Michell PSD Series Pressure Swing Dryers use two columns filled with 4Å molecular sieve desiccant, which are used alternately on a two-minute switching cycle. The PSD dryers are designed to operate continuously, using a small proportion of the dried air, to regenerate the offline column - generally giving desiccant life in excess of five years. This type of heatless regeneration also uses significantly less energy than a 'heated' type of dryer.

Product Features

Excellent long term stability
Maintenance free except for a desiccant change once every 5 years
Completely self-contained
Low power consumption

Model	PSD2	PSD4 (Standard)	PSD4-HFV (High flow volume)	PSD4-HPO (High pressure output)
Performance
	Gas output
Flow	7 Nl/min (14.8 scfh)	30 Nl/min (63.6 scfh)	90 Nl/min (109.7 scfh)	30 Nl/min (63.6 scfh)
Pressure	0.5 barg (7 psig)			User-settable up 8 barg (116 psig)
Moisture content	<1ppm_v	<13.8ppb_v
Input Requirements
	Gas supply
Flow	10 Nl/min (21.2 scfh)	30 Nl/min (63.6 scfh)	90 Nl/min (109.7 scfh)	30 Nl/min (63.6 scfh)
Pressure	5 to 7 barg (70 to 100 psig)	6 to 10 barg (87 to 145 psig)
Moisture content	Oil and liquid water-free	<16ppm_v
Electrical Input
Power	100 to 115 OR 220 to 240 VAC, 50/60Hz	100 to 240VAC 50/60Hz
Power connection	IEC socket
Environmental Conditions
Operating temperature	+5 to +35°C (+41 to +95°F)	+10 to +40°C (+50 to +104°F)
Storage temperature	-40 to +35°C (-40 to +95°F)	-40 to +50°C (-40 to +122°F)
Mechanical Specifications
Type	Twin column desiccant, pressure swing
Desiccant	4 Ångström Molecular sieve bead (4-8 mesh)
Timer	Mechanical cam	Programmable relay
	Gas connections
Inlet	Swagelog ^® ¼"	¼" VCR Swagelok^®
Outlet	Swagelog ^® ¼"	¼" VCR Swagelok^®	½" VCR Swagelok^®	¼" VCR Swagelok^®
	Fliters
Outlet	None	Millipore Wafergard IIF Micro Inline (sealed type) with PTFE membrane element rated at >99.999% retention of 0.003μm particles
Vent	None	Bonded glass microfiber rated at >99.999% retention of 0.1μm particles
Construction	Rack mount: 19" x 6U x 324mm (12.8")	304 stainless steel wall mounting enclosure: 800x600x300mm (31.5x24x12”)
Weight	12.5kg (27.5lbs)	30Kg (66lb)	35Kg (77lb)	32Kg (70lb)

Applications

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