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The suitability of a valve for use with Natural Gas

The suitability of a valve for use with Natural Gas

The suitability of a valve for use with Natural Gas

(OP)
thread378-167629: Valve Class I hadn't come across the WOG term before on valves here in Australia and saw a SATURN valve with 2000 wog on it today. Thanks to this forum and a very good link, I'm enlightened. But, if I read correctly, the wog term does not imply that the valve is approved for use with a particular medium, e.g. Natural Gas (Methane)but it can be.

Does anyone have a view on this?

I checked the approval directories for gas components here in Australia (all 3 of them) and couldn't find the Apollo Saturn valve listed. The valve I saw read "SATURN" 2000 wog, was 1/2 " NPT and was operating at 200 kPa (30 psi).

RE: The suitability of a valve for use with Natural Gas

No.  Only working pressure is specified.  As always, materials must be chosen from those compatible with the fluid and process conditions.

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RE: The suitability of a valve for use with Natural Gas

As I recall, WOG is terminology used by the Manufacturer's Standardization Society (MSS) and it is intended to be a cold working pressure rating.

2000 WOG would stand for 2000 PSI Cold Working Pressure in "Water, Oil, or Gas" service hence the WOG.

I don't specifically remember which MSS standard it would be but I think it's MSS SP-110 for ball valves.

Note that MSS SP-110 is not a listed standard in Table 326.1 of ASME B31.3 so these would be treated as unlisted components. I can't comment on whether they are acceptable for use in Australia under your pressure equipment regulations.

RE: The suitability of a valve for use with Natural Gas

(OP)
Thanks for that feedback.

My decision is that the valve can not be used on Natural Gas infrastructure because it ahs not been approved under a "type testing" regime in Australia.

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