VIP Connections

Vacuum Insulated Pipe (VIP) Connections

There are many options when it comes to connections for Vacuum Insulated Piping Systems. The most popular and most efficient options are vacuum insulated field can joints and bayonet connections (also known as a Johnston Couplings). Other options include foam or armaflex insulated connections that utilize field welded joints, pipe flanges, Grayloc flanges, threaded joints, and various other cryogenic rated connections. These connections must be placed strategically to allow for transportation and installation at your facility.

Bayonet Connection

A bayonet connection consists of a male and female connector that can easily be installed without any field welding or unique training. The tight-fitting male and female bayonet design provides a long heat path from the outer jacket to the inner pipe. This creates a low heat leak connection. CryoWorks offers close tolerance fit bayonets as well as dissimilar metal tip bayonet types. Our bayonet connections also have a low-profile flange to simplify installation allowing pipes to slide through hangers and supports easily. This low profile also decreases core hole diameters and required sealant.

Close Tolerance (CT)

Our Close Tolerance (CT) bayonet connections have a low-profile flange to simplify installation allowing pipes to slide through hangers and supports easily. This low profile also decreases core hole diameters and required sealant.

Common System Adders

Vacuum Insulated In-Line Valves
Bronze Cryo-Valves
Keepfulls / High Point Vents
Internal Low Loss Gas Traps
Vacuum Gauges (DV-6R)
Safety Relief Valves
Capped Bayonets (for future expansion)
Vacuum Insulated Transfer Hoses (Connection to equipment)
ASME Code Compliant Testing and Certification

Vacuum Insulated Pipe is often referred to as Vacuum Jacketed Piping (VJP), Static Vacuum Insulated Piping (SVIP), Dynamic Vacuum Insulated Piping (DVIP), or Flexible Vacuum Insulated Piping (FVIP). However you say it, we’ve got you covered.

Here at CryoWorks, we make things happen – all tailored to your project specifications, needs, and budget.

Benefits

Approximately 50 times more effective than conventional foam insulation in preventing heat gain to the inner line and nearly 200 times more effective than bare copper lines.
Extremely long-lasting and impervious to UV degradation
Can use CryoWorks bayonets for ease of installation
Minimize space required for routing
Minimize cool down losses
Minimize FOD (Foreign Object Debris)
Eliminate CUI (Corrosion Under Insulation)

Vacuum Insulated Field Can Joint

Vacuum Insulated Field Can Joints are used in place of bayonet connections when the pressure ratings of the piping system exceed that of standard bayonet connections as well as in larger bore piping systems when bayonets are not cost effective or available. CryoWorks can also accommodate vacuum insulated field can joints at tees, elbows, and valves. Installation can be completed by any certified welder trained in cryogenic and vacuum installations.

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