Membrane dryers. Series airfit dry G1/2. with/without patented purge air regulation. Overview Description. Characteristics Dimensions

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1 Overview Description Membrane fitting the airfit comfort series Page Characteristics Dimensions Order instructions Type overview Membrane A4P006E-October

2 Membrane Characteristics Special solutions (e.g. temperature, pressure, medium...) on request Characteristics Symbol Unit Description System Type CDM10-1/2-R CDM10-1/2-CR Material Housing Diecast zinc Pipe for membrane Aluminum bundle and return flow Standard sealings NBR Pressures quoted as gauge pressure Drying by highly selective, water-permeable membrane (hollow fibers) based on partial pressure difference between inside and outside of membrane. With pipe for return flow; with/ without Port size G 1/2 G 1/2 CDM1-1/2-R CDM1-1/2-CR Installation In any position In any position Medium and ambient temperatures T min C T max C Medium Filtered air 3) Filtered air 3) Weight (mass) kg 3.3 Type CR: Type CR: 3.6 Pneumatic characteristics Operating pressure range p min p max bar bar Max. flow rate at compressed Q inlet/max l/min air inlet 1) m 3 /h 60 Type CR: Type CR: Pressure dewpoint reduction 1) t pd C Purge air consumption % ca. 10 (Type CR only by flow rate) Pressure drop p bar Type CR: 0.1 For optimum product selection please contact our sales engineer. 1) Inlet conditions according to DIN ISO 7183: p 1 = 7 bar, t 1 = 3 C, t pd1 = 3 C. 2) See also the flow rate diagrams on the next page. 3) According to ISO 873-1, quality classes 1-1, see assembly instruction below. Rough guide to choice of membrane Formula symbols Q corr. = Corrected inlet flow rate Formula for calculation of corrected inlet flow rate Q inlet = Inlet flow rate f p = Conversion factor Q corr. Q inlet = f p Conversion factor for calculation of corrected flow rate Operating pressure range p [bar] Conversion factor f p Example of calculation: Flow rate: 60 m 3 /h : 20 K Operating pressure: 10 bar Q Q corr.. = inlet 60 = = 36.9 m 3 /h f p A4P006E-October 2007

3 Drying by highly selective, water-permeable membrane (hollow fibers) based on partial pressure difference between inside and outside of membrane. Without pipe for return flow (= 2nd membrane level), with/without Membrane CDM20-1/2-R CDM20-1/2-CR Diecast zinc CDM2-1/2-R CDM2-1/2-CR CDM3-1/2-S CDM3-1/2-CS CDM0-1/2-S CDM0-1/2-CS Aluminum Characteristics NBR G 1/2 G 1/2 G 1/2 G 1/2 In any position In any position In any position In any position Filtered air 3) Filtered air 3) Filtered air 3) Filtered air 3) 3.3 Type CR: Type CR: Type CS: Type CS: Type CR: Type CR: Type CR: Type CR: ca. 10 Type CR/CS only by flow rate Type CR: Type CS: Type CS: 0.40 The calculated values shown on the selection diagram are a rough guide to the choice of membrane. The exact choice should, however, be based on the specific data sheet. Selection diagram for ORIGA membrane from HOERBIGER fitting airfit comfort series Q corr. = corrected inlet flow rate [m 3 /h] Q corr. = corrected inlet flow rate [m 3 /h] Q corr. = corrected inlet flow rate [m 3 /h] Based on the calculated flow rate, the diagram shows that a CDM3 or CDM0 Type membrane dryer can be used. The exact choice should, however, be based on the specific data sheet. A4P006E-October

4 Membrane Flow rate in relation to pressure dewpoint reduction and inlet pressure Type: CDM10-1/2-R, CDM10-1/2-CR Type: CDM1-1/2-R, CDM1-1/2-CR 148 A4P006E-October 2007

5 Type: CDM20-1/2-R, CDM20-1/2-CR Membrane Flow rate in relation to pressure dewpoint reduction and inlet pressure Type: CDM2-1/2-R, CDM2-1/2-CR A4P006E-October

6 Membrane Flow rate in relation to pressure dewpoint reduction and inlet pressure Installation instruction (recommended assembly order) Type: CDM..-1/2-R/CR Type: CDM..-1/2-S/CS Type: CDM3-1/2-R, CDM3-1/2-CR Type: CDM0-1/2-R, CDM0-1/2-CR flow direction CF MF CDM CR 10 A4P006E-October 2007

7 Type: CDM10/1/20/2-1/2-R Type: CDM3/0-1/2-S Membrane Dimensions Versions: Fitting the airfit comfort series With/without Compact Immediate dry air delivery No electric power supply required Minimal purge air consumption Low pressure drop No change in air composition fitting dimension fitting dimension 1 = P-inlet 2 = P-outlet For order instructions see page 14, for characteristics see page Dimensions in mm A4P006E-October

8 Membrane Type: CDM10/1/20/2-1/2-CR Dimensions = P-inlet 2 = P-outlet For order instructions see page 14, for characteristics see page Dimensions in mm 12 A4P006E-October 2007

9 Type: CDM3/0-1/2-CS Membrane Dimensions = P-inlet 2 = P-outlet For order instructions see page 14, for characteristics see page Dimensions in mm A4P006E-October

10 Membrane Order instructions Standard versions Description Symbol Port size Order instruction Type Order No. Membrane dryer CDM10-1/2-R PB CDM1-1/2-R PB CDM20-1/2-R PB CDM2-1/2-R PB CDM3-1/2-S PB CDM0-1/2-S PB Membrane dryer with patented CDM10-1/2-CR PB purge CDM1-1/2-CR PB CDM20-1/2-CR PB CDM2-1/2-CR PB CDM3-1/2-CS PB CDM0-1/2-CS PB Accessories Description For Type Order No. Mounting kit * Standard PL1718 Coupling kit PL17608 * 2 kits per mounting recommended For more information see page A4P006E-October 2007