• Internal pressure in SF₆ tank
• Packaging
• Packaging of used SF₆
• Transport by road of used SF₆

Internal pressure in SF₆ tank

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Packaging

Fig. 40
SF₆ cylinders and special high capacity container 5 l, 10 l, 20 l, 40 l and 600 l

Solvay sulphur hexafluoride is shipped as a pressure-liquefied gas in steel cylinders of various sizes. The filling level of SF₆ per litre of container volume is 1.04 kg (at test pressure 70 bar) and 1.3 kg (at test pressure 250 bar).

SF₆ is supplied in steel cylinders of 5, 10, 20, 40, 50 and 52 kg capacity (Fig. 40). For larger quantities, special high-capacity containers are available. These have a capacity of 600 kg SF₆ (Fig. 41b). Tube trailers (Fig. 42) with a capacity of 13 t are also available.

The pressurized packaging are fitted with a special gas-cylinder valve. The valves have an external threaded port on the side with the designation W 21.8 x 1/14" (connection No. 6 in DIN 477).

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		Cylinder				Container
Approval - Permit		Pl				TÜV
Capacity	litre	5	10	20	40	600
Max. fill weight	kg	6.5	13.0	26.0	52.0	600
Height with cap	mm	605	960	970	1670	2120 long
Outer dia.	mm	140	140	204	204	770
Tare with cap	kg	9	14	29	48	460
Test pressure	bar	300	300	300	250	70
Valve connection	W 21.8 x 1 / 14" DIN 477 / 6

This side-connection piece is protected from contamination and damage by a hexagon cap nut. The screw-on safety cap protects the valve from mechanical damage and contamination. To avoid any backflow of other gases, SF₆ pressurised gas packaging should never be emptied so far that a partial vacuum develops. The valve must be closed immediately after the packaging has been emptied. Please return empty packaging in a suitable condition for refilling.

Send them to:
Solvay Fluor GmbH
Carl-Ulrich-Straße 34
D-74206 Bad Wimpfen am Neckar
Germany

Railway station:
Bad Friedrichshall-Jagstfeld

Packaging of used SF₆

40 l steel cylinders and 600 l high-capacity containers are available. The pressurized containers are fitted with a special gas-cylinder valve, external threaded port connection. No. 8 (to DIN 477).

Transport by Road

Fig. 43
Packaging for used SF₆

40 l steel cylinders and 600 l high-capacity containers (see Fig. 43) are available. The pressurized containers are fitted with a special stainless steel gas-cylinder valve, external threaded port connection No. 8 (to DIN 477). This is necessary because corrosive decomposition products could be present.

In documents, the product has to be declared as follows:

Liquefied gas mixture,toxic, n.o.s. (Sulphur Hexafluoride > 95 wt %, Hydrogen Fluoride < 3 wt %, Thionylfluoride < 2 wt %)

GGVSE/ADR - GGVSE/RID

UN No.: 3308

Class: 2TC

Danger label: 2.3 + 8 (for toxic, corrosive substances)

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