| OTF1200XHVSS80(60) |
OTF1200XHPGH60 |
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| Process Vessels (Pls select the tube size in the options bar) |
SS310S Stainless Steel alloy
80mm O.D x 70(±2) mm I.D x 1000 mm L or 60mm O.D x 50(±2) x 1000 mm L
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Ni-based superalloy (Click to download the alloy datasheet)
OD 60 x ID 52 x Length 1000 (mm)
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| Copper gasket
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For 80mm O.D tube:
99 O.D x 82 I.D x 2.2mm
For 60mm O.D tube:
82 O.D x 63.6 I.D x 2.2mm
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For 60mm O.D tube:
82 O.D x 63.6 I.D x 2.2mm
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Working Pressure vs. Working Temperature
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600 PSI max at ≤500°C
511 PSI max at ≤600°C
428 PSI max at ≤700°C
203 PSI max. at ≤800°C
Attention: Never heat up above 900°C
900°C max.for < 1hr
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580 PSI (4 Mpa) max. at ≤800°C
362 PSI (2.5 Mpa max. at ≤900°C
174 PSI (1.2Mpa) max. at ≤1000°C
116 PSI (0.8 Mpa) max. at 1100°C
Attention: Never heat up above 1100°C
The furnace also can reach high vacuum up to 10-6 torr by turbopump.
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| Pressure Range |
0~15Mpa
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0~15Mpa
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| Max. Heating Temp. |
900°C |
1100°C |
| Working Gases |
Inert gas & Hydrogen
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The inert gas, hydrogen, and oxygen |
| Heating Temperature |
900°C max.for < 1hr
800°C continuous |
1100°C max.for < 1hr
1000C for continuous |
| Heating Rate |
≤30°C/min |
≤20°C/min |
| Heating Element |
Fe-Cr-Al Alloy doped by Mo |
Fe-Cr-Al Alloy doped by Mo |
| Heating Zone |
Total length: 440mm Single zone
Constant temp. zone: 150mm ±1°C |
Total length: 440mm Single zone
Constant temp. zone: 150mm ±1°C |
Temp. Control
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PID control method with over-temp protection
Temperature stability: ±1°C
Demo video here)
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PID control method with over-temp protection
Temperature stability: ±1°C
Demo video here)
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Thermocouple
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Omega 3mm OD K Type with high-temperature tolerance (220°C) connector |
Omega 3mm OD K Type with high-temperature tolerance (220°C) connector |
| Positive Pressure Sensor |
Installed in the high-pressure flange |
Installed in the high-pressure flange |
PC Control
(Optional) |
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| Pressure Alarm System |
The upper limit and lower limit control method
Alarm strobe and warning whistle |
The upper limit and lower limit control method
Alarm strobe and warning whistle |
| Voltage |
AC 220V 50/60Hz
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AC 220V 50/60Hz
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| Power |
2.5KW
(20A breaker required)
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2.5KW
(20A breaker required)
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Application Notes |
- The heating temperature must be limited by a certain pressure level due to vessel material strength.Please refer to the specifications
- The pressure increases while the temperature is rising during operation. So you need to calculate the pressure changing towards your target temperature and set a safe value of pressure during the process
- The furnace uses a tube with conflate-designed flanges.
- The safety pressure relief valve is available to be installed at the downstream side. Please click here for details.
- Small quartz or Alumina boat should be used to load the sample into the vessel. Please click the link below to order separately. Never place the sample directly onto the vessel without a crucible. Vessel service life could be reduced significantly if you do so.
- You may use gold or nickel foil to wrap the crucible boat to minimize the contamination to the pressure vessel.
- To measure the electric properties of thermoelectric ceramics under high pressure & temperature conditions, please order an alumina testing fixture and high-pressure electrical feedthrough (10Mpa Max.) with the furnace (additional fee will apply).
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Safety Note |
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- Ni-based Superalloy ( Waspaloy or equivalent) is a reliable processing tube that can be used under high temperatures and high pressure. It has excellent ductility and tensile property so only creep deformation happens under the overpressure destruction test and is followed by a crack formed (usually at the hot zone at the center of the tube) to release the pressure. Brittle fracture won’t happen in the overpressure destruction test which means no tube explosion will happen under the overpressure of inert gas or safe gas or under other accidents causing overpressure of inert gas or safe gas.
- The pics show a Ni-based Superalloy tube under an overpressure test
- Attention: For the use with flammable, toxic, or corrosive gas, you must contact MTI engineering group for the consultation to know all the prerequisites and precautionary measures.
- Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Please click here to learn how to install the gas regulator.
- Do not over tightening the flange screws as this may cause permanent damages to the flange or screws. Please refer to the instructions about proper torque for installing CF flange bolts. We recommend you use a torque wrench to tighten the screws with the flange.
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