2010 Rev. 1
Section
1
21
Section
1
D
URHAM
G
EO
S
LOPE
I
NDICATOR
SOILS
Permeability and Triaxial Shear
Step 3. Select Utilities for Panel
Selection of proper permeability/triaxial support equipment is es-
sential for ensuring proper panel operation and accurate results.
DGSI panel setups require a suitable deairing tank, vacuum
pump, compressed air and accessories for proper operation.
Clean, dry air and vacuum sources are strongly recommended
to maintain consistent performance. Consider adding a vacuum
pump water trap kit (G-39620), air dryer w/oil extractor (G-420),
and a lter regulator (G-41020) to maximize panel efciency.
Vacuum Pumps
Models G-400 and G-405 are
designed for laboratory distillation,
ltration, degassing, vacuum deposi-
tion and as roughing pumps in high
vacuum systems.
The relatively low pump operating
speeds and large oil reservoirs ensure long and trouble-free op-
eration. Both pumps are mounted on rectangular steel base plates
and have V-belts and guards. They are supplied with a quart of oil.
G-405
G-400
G-402
Related Items for Vacuum Pumps (Optional)
Item Description Purpose
G-39620 Vacuum Water Trap Kit Used to keep condensate out of vacuum pump
G-40020
Vacuum Pump Oil, 1 US gallon Pump maintenance
G-40030 Vacuum Regulator Gauge and Filter Assembly Used to regulate vacuum ow
G-40050 Vacuum Pump Flushing Oil, 1 US gallon Pump maintenance
G-409 Vacuum Bleed Valve To bleed off vacuum on system
G-40910 Tubing, Vacuum, 3/8 in ID x 1/4 in wall (sold per foot) To connect vacuum pump to panel
G-40911 Tubing, Vacuum, 1/4 in ID x 1/2 in OD (sold per foot) To connect vacuum pump to panel
Deairing Water Tank
The chamber is 6-in dia. by 16-in high
and is made from clear, cast acrylic.
The head and base are anodized
aluminum and are connected by
stainless steel tie rods. The head has
two ttings, one to allow a tube to pass
through to the bottom of the chamber
for lling and extracting water, and the
other to allow connection to a vacuum
pressure source.
S-505
S-505 Deairing Water Tank 13 lb
Nold Water Deaerator
The self-contained Nold deairing system
deairs six liters of water to less than 0.5 ppb
dissolved oxygen in 4 min. It operates by
mechanical agitation with the application of
a vacuum. The agitation / vacuum system is
signicantly more efcient than conventional
methods using heat-boiling methods. The
system uses a 0.02 hp electric motor an
is great for labs that have to perform tests
quickly. Dimensions: 7.5 in x 7.5 in x 20 in
(19 x 19 x 51 cm).
S-530
S-530 Nold Deaerator Water System, 115 V 19 lb
S-530-A Nold Deaerator Water System, 220 V 19 lb
Specications: G-400 G-402
G-405
Drive type Belt driven Direct drive Belt driven
Voltage
*
115 V, 60 Hz
*
110 V, 60 Hz
*
115/230 V, 60 Hz
Vacuum capacity
3 x 10
-4
Torr 1 x 10
-4
Torr 1 x 10
-4
Torr
Free air capacity 0.35 cfm 3 cfm 2.8 cfm
Motor power 1/4 hp 1/3 hp 1/2 hp
Operating speed 350 rpm 1725 rpm 525 rpm
Inlet tting 3/8 NPT 1/4 barb 7/8 NPT
Oil capacity 1 qt 26.4 oz 1.5 qt
Length 18½ in 15½ in 17¼ in
Width 10 in 6½ in 11½ in
Height 10¾ in 11¼ in 13 in
Weight 44 lb 28 lb 40 lb
(*) Other voltages available
!
Permeability / Triaxial Panels require the following:
• Deairing Tank • Vacuum Pump • Water
• Drain • Clean, Dry, Compressed Air
(5 pages)
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