Cryogenic Cryogenic Dewars
Cryogenic dewars are small to medium-capacity vacuum-insulated vessels designed for storage, transport, and dispensing of cryogenic liquids in laboratory, medical, and portable applications. These vessels provide convenient access to cryogenic liquids for research, specimen preservation, and small-scale industrial applications.
Why are Cryogenic Cryogenic Dewars Needed?
Cryogenic dewars provide practical cryogenic liquid access for applications that don’t require bulk storage tank installation. They enable laboratories, medical facilities, and small industrial users to maintain on-site cryogenic capability with minimal infrastructure, supporting research, specimen preservation, and specialized process needs.
Cryogenic Cryogenic Dewars Applications
Common applications include:
- Laboratory research and experiments
- Biological specimen preservation
- Medical cryotherapy and cryosurgery
- Small-scale industrial processes
- Cryogenic equipment servicing
- Educational demonstrations
Cryogenic Cryogenic Dewars Specifications
At Roben, Mfg, Inc., we offer comprehensive options including:
- Capacities from 1 liter to 500+ liters
- Low-pressure and pressurized designs
- Stainless steel construction
- Multi-layer vacuum insulation
- Holding times from days to months
Certifications and Standards
Our cryogenic pressure vessels are designed and manufactured in accordance with stringent industry standards:
- ASME Section VIII Division 1 & 2: Pressure vessel design and fabrication standards
- ASME Section IX: Welding procedures and qualifications
- CGA Standards: Compressed Gas Association requirements for cryogenic vessels
- NBIC: National Board Inspection Code compliance
- DOT/TC: Department of Transportation certification for transport vessels
- U Stamp & R Stamp: ASME certification for new construction and repairs
Cryogenic Cryogenic Dewars Frequently Asked Questions (FAQs)
What is the difference between low-pressure and pressurized dewars?
Low-pressure dewars operate at atmospheric pressure with open or loosely sealed necks, relying on natural boil-off venting. Pressurized dewars are sealed vessels operating at 22-350 psig, enabling liquid withdrawal without separate pressurization equipment. The choice depends on your application’s dispensing requirements.
How do I select the right dewar size?
Consider your daily usage rate, delivery frequency, and available storage space. Choose a dewar that provides adequate supply between deliveries while minimizing product loss from evaporation. Our team can help calculate optimal sizing based on your specific consumption patterns.
What maintenance do cryogenic dewars require?
Dewars require periodic vacuum system checks, valve maintenance, and safety device inspection. Visual inspection for damage and proper functioning should occur regularly. We provide maintenance guidelines and service support to ensure long dewar service life and reliable performance.
Contact Roben, Mfg, Inc.
For more information about our cryogenic insulated pressure vessel solutions or to request a quote, please contact Roben, Mfg, Inc. today. Our experienced engineering team is ready to assist you in developing the perfect solution for your unique cryogenic application requirements.
Phone: (732) 364-6000 | Email: sales@robenmfg.com
760 Vassar Ave, Lakewood, NJ 08701
