Block Ovens
These
safe, accurate ovens perform long-term
high-temperature air or oil aging tests to ASTM, ISO
and government standards.
28 Hole
Oven shown with water cooled condenser for
ASTM oil immersion tests (click image to
enlarge) |
9 Hole
Oven shown with standard glassware (click
image to enlarge) |
6 Hole
Oven shown with standard glassware (click
image to enlarge) |
Features
of all ovens |
- Cross-contamination
of samples is eliminated by use of up to 28
individual test stations.
- Solid-aluminum
block is cleaner and safer than oil baths,
and transfers heat at a faster rate.
- Round design
provides a more constant and uniform heat
transfer than square block ovens.
- Up to three
inches of insulation surrounding the block
prevent loss of heat and reduces electrical
consumption during long-term aging studies.
- P.I.D.
temperature controllers maintain a constant
temperature without drifting above or below
set point.
- Stainless steel
jacketing eliminates corrosion caused by
spills of test fluids
- Preset high-limit
switch shuts off power if overheating occurs.
- Both ASTM D-471,
for liquid aging, and D-865, for air aging,
can be run at the same time.
- The system can be
set up, with the water-cooled reflux
condenser, to reduce constant monitoring of
liquid levels and build-up of volatile gases.
Specifications
| |
LGB-6 |
LGB-9 |
LGB-28 |
| Test-tube capacity |
6 |
9 |
28 |
| Height |
12" |
22" |
14.5" |
| Weight |
12"
x 14" |
16"x20" |
24.5"
o.d. |
| Temperature
control |
P.I.D. digital |
P.I.D. digital |
P.I.D. digital |
| Temperature range |
100o
F to 500o F |
100o
F to 500o F |
100o
F to 500o F |
| Power |
220V, 1 Ph, 1500W |
220V, 1 Ph, 3000W |
220V, 1 Ph, 6000W |
| Weight
lbs. (kg) |
60 |
125 |
355 |
Accessories
Glassware
for Block Ovens (click to Enlarge)
A major disadvantage
to the present systems of oil immersion testing is
the evaporation of volatile fluids. The test must
also be carried out in explosion proof enclosures.
The Benz water cooled
reflex condenser reduces the need for constant
monitoring of liquid levels as well as the hazardous
build-up of volatile gases
Benz Materials Testing
Instruments has in stock all aluminum block aging
oven accessories to perform ASTM D-471 and D-865 for
rubber deterioration.
ASTM D-471 for
liquid effects
- LGB-24: 38mm X
300mm test tubes
- LGB-25A:
Single-hole stoppers
- LGB-27A: 15mm
reflux tube
- LGB-92:
Water-cooled condenser
- LGB-93: Condenser
test tube
ASTM D-865 for
air heating
- LGB-24: 38mm X
300mm test tubes
- LGB-25: Two-hole
stoppers
- LGB-26: 9mm short
vent tube
- LGB-27: 9mm long
vent tube
