What is the API definition of sandy service -- re ball valve

[compo]

For ball valve seat material selection can someone advise where one would be able to verify the definition of "sandy service" in terms of what constitutes sandy service.

Is this
. Quantified sand concentration with particle sizes greater than a certain diameter
. Percentage volume sand with particles size greater than cwertain diameter in a fluid
. "sandy" is this simply sand or covers any solid .
. Which if any API covers this, PREVIOUS CANCELLED THREAD implied 14d stating though this was cancelled ??

 

[jbeckhou]

Class 2: Sandy Service, where particulates such as sand could be expected to cause equipment failure. Call Southwest research institute, they can help you.



Petrotrim Services

 

[JLSeagull]

Within the oil and gas production business you would assume that the services near the wellhead contain sand. I lack a copy but check API 6A.