
PRINCIPLE OF OPERATION
DM™-Series gas dryers combine selectivity
of Nafion® gas dryers with the simplicity of
desiccant canister dryers. Gaseous sample
flowing through the dryer contacts only Nafion
tubing, which selectively absorbs water vapor
while retaining the remaining sample components in the gas stream. Water passing
through the tubing wall is absorbed by the
molecular seive desiccant. Scattered blue
indicating crystals can be observed through
the clear window to monitor the condition of
the desiccant.
DM™- Series
Gas Dryer
User Manual
Nafion® is a registered trademark of DuPont
DM™ is a trademark of Perma Pure LLC.
Bulletin 202
PERMA PURE
8 Executive Drive
Toms River, N.J. 08755
Phone: 800-337-3762
732-244-0010
Fax: 732-244-8140
e-mail: info@permapure.com
Web Site: www.permapure.com

DM GAS DRYER SPECIFICATIONS
REPLACING DESICCANT
When blue indicating crystals turn pink, desiccant
needs to be replaced.
Model Number DM-060-24 DM-110-24
O.D. 0.060" 0.110"
I.D. 0.049" 0.085"
Flow Rate Up to 500mL/min Up to 1L/min
Housing 4.2"x2.4"x1.0" 5.0"x2.75"x1.5"
Desiccant 2.5 oz. 5.5 oz.
Drying/Charge 72L 150L
INSTALLATION
Luer Fittings
DM-060-24 include two sets of barb fittings:
1/16” and 1/8”
DM-110-24 include one set of 1/8” barb fittings
Units ship with plugs on the bulkhead fittings.
Before use, take plugs off and replace with barb
fittings.
1. Take off fittings/tubing
2. Remove snap-lock door on canister (Refer to
Snap-lock Door
Figure 1)
3. Empty spent desiccant
4. Refill with new desiccant
5. Replace snap-lock door
PART NUMBERS FOR REPLACEMENT
Desiccant
Fittings
Indicating Crystals
Figure 1
Part Number Description
DM-AR 1 Liter (provides 10 refills)
ME-060-24BB Replacement dryer for DM-060-24
ME-110-24BB Replacement dryer for DM-110-24
PERFORMANCE
Stainless Steel Compression Fittings
Compression fittings take 1/8” tubing
DM-Series dryers continuously dries sample
gases down to -30°C dew point depending on
flowrate.