Grease Suitable for Natural Gas Service

[aggieengineerrmb]

Does anyone have some ideas about what grease should be used on ball (floating or trunnion) valves when exposed to natural gas? I understand many tradition greases will react and harden over time, which increases valve torque and likelihood of seat leakage.

 

[CRG]

Check with manufactures of the grease

http://www.valtex.com/catalog/Val-Tex_catalog.pdf

 

[NGiLuzzu]

Aggieengineerrmb,
try also consulting the following websites:

http://www.lubricants.co.uk/industry_gas.html

http://www.dowcorning.com/content/molykote/

http://www.halocarbon.com/e10.htm

http://www.varybond.de/seite1.html

(in German)

http://www.klinger.nl/

(in Dutch)

For special applications (even if I don't think this is the case):

http://www.solvaysolexis.com/Fomblin.htm

Hope this helps, 'NGL