O-ring and shaft seal materials for seawater equipment

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pierre.sabiy
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Hello,
I would need help. Need help choosing the material for sealing: o-ring, shaft seal. They will use the equipment that will be installed on board a seagoing ship.
The conditions are:
- Resistant to seawater
- Withstand temperatures of -32 ° to + 60 ° or -25 ° to + 60 °
- And chemical resistant in gear, i grease, oil,
Bendzin, ...

For each of your advice thank you.
 
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For what sort of equipment do you need this seal material?
 
SteamKing said:
For what sort of equipment do you need this seal material?
It's the gearbox that will be 24 hours (thus still) installed on board naval ships.
 
pierre.sabiy said:
Hello,
I would need help. Need help choosing the material for sealing: o-ring, shaft seal. They will use the equipment that will be installed on board a seagoing ship.
The conditions are:
- Resistant to seawater
- Withstand temperatures of -32 ° to + 60 ° or -25 ° to + 60 °
- And chemical resistant in gear, i grease, oil,
Bendzin, ...

For each of your advice thank you.

Pierre,

Parker-Hannifin makes a wide variety of o-rings from different polymer materials. You can look at the properties of the various polymeric materials they use on their website:

http://parker.com/portal/site/PARKE...1127&vgnextcat=O-RING+ELASTOMERS&Wtky=O-RINGS
 
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pierre.sabiy said:
It's the gearbox that will be 24 hours (thus still) installed on board naval ships.
Most of the reputable marine gear manufacturers already provide seals for their products.

I'm curious as to why you are doing something which should have already been done by the manufacturer.
 
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This is not a marine gearbox. This gearbox is placed on board the ship (is not below deck).
 
pierre.sabiy said:
This is not a marine gearbox. This gearbox is placed on board the ship (is not below deck).
Navies are usually pretty careful about substituting non-marine equipment for items designed for use aboard ship.

I don't know what this exercise is all about, but I get the sense that there is a lot more to this story than you have shared...
 
Thread closed temporarily for Moderation. @pierre.sabiy -- send me a personal message with more information about this system, and information about what Navy contract you are working under.