Vacuum lines

USuperinsulated vacuum lines, whether rigid or flexible, optimise the cryogenic fluid transfer process (nitrogen, oxygen, argon, CO2). Made-to-measure at our factory, they are designed to be site-installed by welding or using male-female couplings.

They have the following benefits

- Excellent thermal performance (low consumption)

- No need for maintenance

- Maximum security

- 304L stainless steel

- Small form factor

- Frost-free (vacuum sections)

Applications

- Cryobiology (healthcare, pharmaceutical products etc.)

- Chemicals

- Electronics (semiconductors etc.)

- Food industry

- Space industry (cryogenic food storage - Ariane 4 and Ariane 5)

- Industry, steel making...

Technical solutions

- Flexible or rigid lines

- Internal diameter: DN10 to DN100

- Operating pressure: PN6 to PN15

- Welded or screwed (Johnston couplings)

- Accessories: purger, phase separator, valves, hoses etc

Diagram of a vacuum line

1) Inner tube

2) Thermal barrier

3) Outer jacket

4) Contraction compensator

5) Centering ring

6) Adsorbent

7) Vacuum and safety clack valve

8) Male Johnston connector
(see couplings, page 64)

Applications

Flexible vacuum lines can be used to transfer your cryogenic fluids such as liquid argon and nitrogen from a storage tank to the point of use without interruption.

They come in three diameters and different lengths. Maximum operating pressure is 6 bar.

Co2 vacuum line

- Simplified version of the standard lines

- Rigid lines only

- PN25

- DN10 to 50 (others available on request)

- Coupling using butt-welding and PU sleeve

Advantages

Lines kept in stock for hire or sale. Lines reinforced with a protective coil.

Connection

Coupling using butt-welding and PU sleeve

Must not be used with oxygen.

Connections and couplings

Johnston connections (vacuum)

Weld-free connections, rapid assembly and dismantling thanks to interlocking parts (screw, collar or clamps). Guaranteed no disruption to thermal performance. Available in DN10, 20, 32 (HP), 50.

Welded connections

Available in DN10 to 100.

Perlite & PU sleeve: on-site assembly of sections by butt-welding. Length can be adjusted during installation. Filled with Perlite (oxygen) or polyurethane foam injection (nitrogen and argon).

Vacuum sleeve: on-site assembly of sections and sleeve by butt-welding. Length can be adjusted during installation. On-site superinsulation and creation of the vacuum in the sleeve. Guaranteed no disruption to thermal performance.