Techniguard R-Series Vacuum Jacketed Pipe (VJP)

Evacuating Rigid VJP

Standard lengths of rigid vacuum insulated pipe stocked at our factory

VJP pipe bayonet ends

Techniguard rigid vacuum jacketed pipe from Technifab has extremely low heat leak, minimizing cryogen loss from boil-off. It is maintenance-free for a minimum of ten years. And now we've improved the product even more by making it easier to connect to our Techniguard B-Series vacuum jacketed pipe.

Our vacuum insulated piping systems are manufactured in easy-to-assemble sections with high-efficiency, low heat leak bayonet connections.  Technifab's bayonet connections provide frost-free connections between pipe sections and easily accommodate future expansions or modifications of installed systems.

Advantages

Technifab vacuum jacketed pipe with bayonet connection systems:

• Delivers significant lifetime savings due to minimal cryogen loss

• Requires no maintenance or continuous pumping that dynamic vacuum jacketed pipe requires

• Provides longer, care-free service life

• Is easier to install than foam insulated copper pipe

• Is backed by a 10-year maintenance-free warranty providing you with peace of mind for years to come

• Provides a rapid return on your investment

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When you price vacuum insulated piping systems, the initial cost of a cryogenic transfer system does not represent the total operating cost. The savings on liquid nitrogen due to drastically reduced heat leak amounts to a short return on the initial investment. Our customers annually save thousands of dollars, which translates to an improved customer profit margin.

The high thermal performance of Techniguard rigid vacuum insulated pipe saves our customers enough liquid nitrogen so that the system pays for itself in less than a year in most cases.

Learn how Techniguard Vacuum Jacketed Pipe (VJP) can improve your operation's efficiency and profitability.

A wide variety of options are available to meet your specific needs including:

• Choice of end connections
• ASME B31.3 and liquid oxygen certification available.

Suggested applications

Techniguard vacuum insulated piping can be used in any situation where cryogenic liquids need to be transferred from a bulk storage tank to any number of user locations. Techniguard is well suited for any of the following installations:

• Food plants using cryogenic liquids in their processing
• Pharmaceutical plants requiring long supply runs of cryogenic liquid from the bulk storage tank to multiple use points
• Processing facilities requiring long exterior pipe runs exposed to weather.

Download Techniguard R-Series Sales Information

System Design and Installation

Technifab offers a full line of other components from valves, phase separators, and custom cryogenic equipment to meet your cryogenic system needs. Regardless of the size, complexity, or location you envision, Technifab can design the system right for your installation. And if you need help installing your system we can arrange that too.

For more information or to request a cost/thermal performance analysis of your plant's cryogenic pipe system or a quote please contact us.

Cryogenic pipe construction

Technifab vacuum insulated pipe is constructed of 304 stainless steel schedule 5 welded or seamless pipe ASTM A312.

Expansion joints are located on the inner or outer pipe to allow for contractions caused by cryogenic temperatures. The inner pipe is suspended within the outer pipe by low thermal conductivity radial supports.

The vacuum chamber is super-insulated with alternate layers of machine wrapped aluminum foil and appropriate spacer material with chemical gettering as required.

Quality Assurance

Techniguard Rigid VJP is backed by a 10-year maintenance-free warranty.

Techniguard R-Series VJP Specifications
	Nominal Pipe Size	Outside Diameter in Inches (mm)	MAWP in PSIG (kPa)
R50	1/2" x 2"	2-3/8 (60)	150 (22)
R75	3/4" x 2"	2-3/8 (60)	150 (22)
R100	1" x 2-1/2"	2-7/8 (73)	150 (22)
R150	1-1/2" x 3"	3-1/2 (89)	150 (22)
R200	2" x 4"	4-1/2 (114)	150 (22)
R300	3" x 5"	5-7/32 (141)	150 (22)
R400	4" x 6"	6-5/8 (168)	150 (22)