175L Industrial Grade Cryogenic Gas Dewar Vacuum Insulated Liquid Argon Storage Bottle
Products Description
The 175L Cryogenic Dewar Tank is a high-vacuum insulated pressure vessel engineered for the storage and transport of liquid nitrogen (LN₂), oxygen (LOX), argon (LAr), carbon dioxide (LCO₂), and LNG. Constructed from high-strength aluminum alloy or stainless steel, it features multi-layer insulation (MLI) and high-vacuum jacket technology with a static evaporation rate as low as 0.87–1.0 L/day, delivering reliable long-term performance at temperatures approaching -196°C for biobanking, industrial gas distribution, and laser cutting assist-gas applications.
Product Specifications
| Specifications | DPL450-175MP | DPL450-175HP | DPL450-175VHP |
|---|---|---|---|
| Geometric Volume | 175 | 175 | 175 |
| Effective Volume | 157.5 | 157.5 | 157.5 |
| D×H(mm)Size | Φ508×1496 | Φ508×1500 | Φ508×1500 |
| Working Pressure(MPa) | 1.37 | 2.05 | 2.88 |
| Set Pressure of Safety Valve(MPa) | 1.59 | 2.41 | 3.45 |
| Bursting Disc / Assistant Safety Valve(MPa) | 2.6 / 2.41 | 3.6 | 5.17 |
| Evaporation Rate(liquid nitrogen) | ≤2.1% | ≤2.1% | ≤2.1% |
| Empty Weight(kg) | ~117 | ~135 | ~156 |
| Maximum filling weight :Liquid Oxygen (kg) | ~179 | ~179 | ~179 |
| Maximum filling weight :Liquid Nitrogen (kg) | ~127 | ~127 | ~127 |
| Maximum filling weight :Liquid Argon (kg) | ~220 | ~220 | ~220 |
| Maximum filling weight :LNG (kg) | ~67 | / | / |
| Maximum filling weight :Liquid CO ₂(kg) | / | ~163 | ~163 |
| Level Gauge | Float/Capacitance | Float/Capacitance | Float/Capacitance |
| Base Style | Stainless Steel-Rubber | Stainless Steel-Rubber | Stainless Steel-Rubber |
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Product Features
✔ High vacuum insulation reduces cryogen vaporization & refilling cost
✔ Integrated built-in vaporizer delivers stable gas output, no extra vaporizer required
✔ Complete safety manifold: safety valve, pressure gauge, liquid level gauge for multi protection
✔ Vertical compact design, simple installation, small footprint, easy handling
✔ Mass-produced mature model, verified by thousands of global users with low failure rate
✔ 100% factory inspection, test report for each unit, full export documents ready
Packaging & Shipping
1.cryogenic dewar Tank body wrapped with PE protective film to prevent scratch on stainless steel surface;
2.Valves & pressure gauges separately wrapped with bubble film against impact;
3.Optional metal transport frame (highly recommended for sea freight), fix tank upright to avoid tipping;
4.Wooden block reinforcement at bottom for container sea & land transport;
5.Shipping mark & warning labels: cryogenic pressure vessel, upright sign;
6.Keep tank upright during loading, horizontal or inverted transport forbidden to prevent vacuum failure;
7.Packing photos & packing video available before shipment for customer confirmation.
How to Select cryogenic dewar?
1.Application: stationary indoor gas supply choose 1.4MPa; mobile delivery choose 2.0/2.88MPa;
2.Medium: LOX / LIN / LAr, inform us to match proper valve set;
3.Order quantity: trial order start from 1pc, volume discount for bulk purchase;
4.Destination country: tell us target country and we provide matching certificates like TPED / CE.
Application Scenarios
✅ Industrial gas station: on-site storage & continuous supply of LOX, LIN, LAr
✅ Laser cutting, metal welding, metallurgy heat treatment
✅ Scientific laboratory, material cryogenic test & cooling
✅ Hospital centralized oxygen supply, medical emergency oxygen system
✅ Food quick-freezing & cold chain processing
✅ Semiconductor & photovoltaic cryogenic process
✅ Mobile cryogenic gas source for mining & construction site
✅ LCO2 storage & dry ice production
After Sales Service
1.12 months warranty, free repair or spare parts for manufacturing defects.
2.24h online technical support for operation questions.
3.Long-term spare parts supply for 175L cryogenic gas dewar.
4.Vacuum re-pumping maintenance service available.
5.Reissue export documents anytime.
why choose us?
1.Direct manufacturer supply, no middleman markup, competitive pricing
2.Stock available for standard model to shorten lead time
3.Small trial order acceptable starting from 1pc, help distributors develop market
4.Complete export documents supplied in one package to simplify customs clearance
5.Stable monthly output to guarantee continuous supply for bulk orders
6.Fast sales response within 24 hours, one-stop purchasing service
Common Troubleshooting about dewar cylinder
| Symptom | Possible Cause | Solution |
|---|---|---|
| Excessive frosting or white vapor emission from the upper tank section | Vacuum insulation failure | Contact the manufacturer to return the unit for vacuum integrity testing; do not attempt repairs yourself |
| Liquid nitrogen consumption accelerates significantly | Poor neck seal / Prolonged lid-open operation / Vacuum degradation | Check if the neck plug is properly seated; reduce the frequency of opening the lid; if frosting at the neck persists, return the unit to the factory for leak testing. |
| Safety valve repeatedly opening (pressure-type) | Overfilling / Pressure-building valve left open / Excessive ambient temperature | Vent to normal liquid level; check if the pressure-building valve was accidentally opened; move to a cool location |
| Inaccurate liquid level reading | Take reading after the unit has been allowed to stand still; | For pressure-type units, the level gauge must be read while the tank is in a vertical position. |
FAQ
Q: Is the cryogenic gas dewar shipped filled with liquid gas?
A: No, we only ship empty 175L dewar. Cryogenic liquid should be filled locally at buyer's gas station.
Q: Can this 175L dewar output gas continuously directly?
A: Yes, built-in vaporizer, directly output room-temperature gas for industrial use.
Q: Can you provide spare parts for 175L cryogenic dewar?
A: Yes, spare valves, pressure gauge, burst disc, liquid level meter can be supplied separately.
Q: How to inspect the 175L dewar before shipment?
A: Hydrostatic pressure test, air tightness test, vacuum inspection, visual inspection, NDT for welds.
Q: Is training available for operation of liquid oxygen dewar?
A: Free video operation guide; on-site commissioning & training available for large project (extra cost).
Q: What payment terms do you accept?
A: 30% T/T deposit, balance before shipment; L/C at sight acceptable for big order.
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