Arya Agencies

The cryogenic valves we provide have the following characteristics.

• Pressure rating to 750 psi (52 bar) at 100°F.

• Temperature rating -320°F to 700°F (-196°C to 371°C).

• Long life cycle, packing below thread design.

• Metal seat bubble-tight shut-off.

• Anti-blow-out-proof stem, one piece design.

• Non rotating stem.

• Dust cap functions as position indicator - open / closed.

• Fire safe design to BS 6755 Part 2.

Vaporizers used for vaporization systems for LIN, LOX, LAR and LNG. Flow rate 30 tp 2500 Nm³ per Hr. Pressure range is 40 to 400 bar. Material used Aluminium or aluminium + stainless steel.

We offer a premium quality range of cryogenic liquid equipment for handling cryogenic liquids. It is fixed with a standard line of vacuum jacketed transfer piping systems and flexible transfer lines. It is available in standard lengths for immediate shipment.

Further, cryogenic liquid equipment are also used in the production of very low temperature materials. At such low temperatures, substances that are natural gases can be liquefied.

Specifications:

• Temperatures range from -238 °F (-150° C, 123.2 K°) to absolute zero

Our range is acclaimed for the following features:

• Reliable

• Cost effective

• Highly operational

• Ease of installation

The cryogenic freezers in the MVE Series provide stable cryogenic storage for up to 39,000 1.2 / 2.0 ml vials. These cryogenic freezers provide maximum storage density as well as the industry’s longest hold time of all comparable cryogenic freezers. Although engineered for liquid storage, the MVE Series cryogenic freezers can be operated in vapor using available vapor storage accessory packs.

Features include:
 

• Liquid sample storage

• Wide neck opening

• Lowest liftover height of comparable cryogenic freezers

• Largest LN2 capacity

Super-insulated vacuum lines for liquid cryogenic gases, pressure ranging from 1bar to 19 bar. Material used for Vacuum insulated lines is Stainless Steel or Invar. We provide safety relief system for both inner and outer piping.

We are involved in offering fitting services like Shrink Fitting Services for various types of bush fittings depending upon the site and location of the unit to be operated. Shrink Fitting Services is the technique in which the pieces of structure are heated or cooled by using thermal expansion technique to make a joint. We provide quality services and thus, attain maximum client satisfaction.

Designed specifically for low pressure, liquid applications, the Cryo-Cyl LP has a low center of gravity and a polished, stainless steel outer shell, making these cylinders perfect for laboratory and hospital applications. By specifying stainless-steel casters, they become non-magnetic and ideal for MRI service. As with every Chart product line, our attention to detail puts the Cryo-Cyl LP above the competition. Along with the optimal balance of low NER and the durability in a liquid cylinder, its design includes an extended-stem, easy-operating globe valve that provides less ice build-up on the handle and easier operation. A pressure building circuit inside the cylinder needs only an optional regulator kit to turn the Cryo-Cyl LP into a full, pressure-building unit.

Special Features:
 

• Easy to handle 26” (66.04 cm) diameter 230 liter model (low center of gravity)

• Extended stem liquid valve

• Rugged, oversized casters

• Optional stainless-steel casters (MRI applications)

• Purity of supplied liquid nitrogen (LN2): 99.999 %
• Cater to orders ranging from 26 liters to 10,000 liters
• Well equipped with transportation tanks and vehicles fitted with tanks ranging from 200 liters to 10000 liters

Physical properties:

The various physical properties of cooling pure liquid nitrogen are given below:

• Molecular weight: 28.01
• Boiling point at 1 atm: -320.5°F (-195.8°C, 77oK)
• Freezing point at 1 atm: -346.0°F (-210.0°C, 63oK)
• Critical temperature: -232.5°F (-146.9°C)
• Critical pressure: 492.3 psia (33.5 atm)
• Density, liquid at BP, 1 atm: 50.45 lb/scf
• Density, gas at 68°F (20°C), 1 atm: 0.0725 lb/scf
• Specific gravity, Gas (air=1) at 68°F (20°C), 1 atm: 0.967
• Specific gravity, Liquid (water=1) at 68°F (20°C), 1 atm: 0.808
• Specific volume at 68°F (20°C), 1 atm: 13.80 scf/lb
• Latent heat of vaporization: 2399 BTU/lb mole
• Expansion ratio, liquid to gas, BP to 68°F (20°C): 1 to 694

Handling & Storage:

It is mandatory to store and use this product with adequate ventilation rather than a confined space. To control internal pressure, cryogenic containers are equipped with pressure relief devices. These containers will occasionally emit product under normal conditions.

DOS:

• A suitable hand truck should be used for container movement
• Containers should be handled and stored in an upright position.
• Use piping and equipment designed to withstand the pressures to be encountered
• Use a check valve or other protective apparatus on gas withdrawal systems, in any line or piping from the container to prevent reverse flow
• Use only transfer lines designed for use with cryogenic liquids
• It is recommended that all vents to be piped to the exterior of the building or to a well ventilated indoor space