Perma Pure MD-Series - Manual (Page 2)

Tools Needed:
- Two wrenches- 5/8 and 7/16
- Tweezers
Refer to Figure 4
1. Hold tee fitting with 7/16 wrench and loosen
union fitting with 5/8 wrench (SS dryer
requires 9/16 wrench for both fittings).
2. Remove fitting.
3. Rotate dryer element 10 degrees each way
with tweezers or fingertips.
4. With two wrenches, loosen inside nut
connecting tee fitting to shell tube.
5. Rotate tee fitting to desired location and
tighten into place.
6. Install union into tee fitting while making
sure element is not pushed back out of
o-ring seal. Take caution to ensure
element does not rotate inside shell.
7. Tighten union fitting by hand and then
tighten 1/4 turn with wrench.
Tools Needed:
- Two wrenches - 5/8 and 7/16
- Pair of lightweight gloves
1. Repeat steps 1-4 for other end.
2. Put on lightweight gloves to protect
membrane tubing
(skin oils can contaminate surface).
3. Gently push one end of element out of
o-ring while pulling other end out of tee
fitting.
4. Gently pull element out of housing from
opposite end.
5. Reverse for reassembly. Element ends
should extend equally from each end of
shell housing before installing union
fittings.
TO ROTATE FITTINGS
Figure 4
PERFORMANCE
Performance Curves
TO DISASSEMBLE DRYER
MD-Series dryer’s performance varies according to
dryer lengths, flowrates and length of Nafion tubes.
-10
-5
0
5
10
4 3 2 1 0
-15
-20
-25
MD-110 DRYING PERFORMANCE
MD-110-12
MD-110-24
MD-110-72
MD-110-96
MD-110-144
-50
-40
D
E
W
P
O
IN
T
( C
)
-30
0 100 200
0
-10
-20
20 40 60 80 120 140 160 180
MD-110-48
-60
FLOWRATE (CC/MIN.)
D
E
W
P
O
IN
T
(
C
)
MD-050 DRYING PERFORMANCE
FLOWRATE (L/MIN.)
MD-050-12
MD-050-24
MD-050-48
MD-050-72
FLOWRATE (L/MIN.)
D
E
W
P
O
IN
T
(
C
)
MD-070-144
MD-070-96
MD-070-72
MD-070-48
MD-070-24
MD-070-12
-25
-20
-15
0 1 2 3 4
10
5
0
-5
-10
MD-070 DRYING PERFORMANCE
When connecting sample line to dryer, hold
union fitting with a wrench before tightening the
compression nut. Failure to do so may over-
tighten the union connector fitting, twist dryer
membrane and damage the dryer.
Tee Fitting
Union Fitting
O-Ring
Element
Nut
Tee Fitting
Union Fitting
O-Ring
Element
Nut
Inside Nut
Inside Nut
Bulletin# 203
8 Executive Drive
Toms River, N.J. 08755
Phone: 732/244-0010
Fax: 732/244-8140
e-mail: [email protected]
Web Site: www.permapure.com
MD ™ -Series
Gas Dryer
User Manual
PERMA PURE Nafion® is a registered trademark of DuPont
MD™ is a trademark of Perma Pure LLC.
WARNING!