With the aim of always providing our customers with the best level of service possible, Bliss Anand has created Engineered Solutions for our standard products.
One such solution, Cryogenic Applications, allows us to ensure that your process fluids remain in a liquid state up to -320 ⁰F.
What is Cryogenics?
- It is a study of production of extremely low temperatures
- Cryogenic liquids have boiling points below -240 °F
- Examples of Cryogenic liquids: Nitrogen, Argon, Helium, Hydrogen, Methane, LNG, Oxygen, etc.
Why do we need Cryogenic Applications?
- Liquids that are not properly insulated can explode or combust at normal temperatures
- Bliss Anand’s solution allows our customers to safely monitor process liquids using our gauges, with easy installation and maintenance
Our Solution – Cryogenic Insulation
To facilitate operations where your product needs to be kept cold via chillers, refrigerants and condensers, Bliss Anand provides Cryogenic Insulation. By insulating a level gauge with a specialized cryogenic jacket, process temperatures can be maintained in a liquid state down to -320°F (-195°C).
Insulation systems consisting of Polyisocyanurate (PIR) rigid foam are applied in multiple layers. In combination with the PIR foam, high performance vapor barriers are used in order to produce the necessary degree of insulation. Specific cladding materials, such as stainless or aluminized steel, are then applied as the outermost layer of protection.
The thickness of the insulating foam layer will depend on the required temperatures. Below is the Bliss Anand recommendation, however final specifications depend on customer requirements:
2” thick; single layer – Maximum: 350° F (177°C); Minimum -100°F (-73°C)
3” thick; double layer – Maximum: 350° F (177°C); Minimum -200°F (-129°C)
4” thick; double layer – Maximum: 350° F (177°C); Minimum -320°F (-196°C)
This form of insulation is stable up to temperatures of 500°F (260°C). Exposure to heat above these recommendations can cause decomposition of materials. 
Cryogenic Insulation is recommended for any gauge that is required to work below a process temperature of 36o F (2o C).
Our engineers are also able to design custom frost extensions engineered to specific application requirements. These frost extensions are manufactured of durable acrylic plastic that prevent frost accumulation while ensuring clear visibility to the user, and are provided as a standard with all gauges requiring cryogenic insulation.
- Oversized chamber (3”)
- Guide rods to ensure floats are closer to the indicating assembly
- Acrylic frost extensions provided
- Prevents frost accumulation and ensures clear visibility
 For situations where your project may need to withstand higher temperatures, Bliss Anand also provides insulation blankets that can endure temperatures up to 1000°F (540°C).