Can I use Flowseal butterfly valve for Thermal Oil (Paratherm HE) on/off service?

[bao2ye]

Flowseal high performance butterfly valve trims:

Seat: RPTFE
Disc: 316
Shaft: 17-4PH
Body: WCB (ANSI 150CLASS)

Is there any risk to use the valve for oil service?

Thanks

Bao2ye

 

[gerhardl]

The only one source able to give you a verified answer for th whole construction is the valve producer. You have to provide the full flow details. In addition to pressure, temperature, operational modes and variations, and chemical properties a layout sketch could be interesting for the purpose.

Apart from this: there are temperature limits and some chemical limits to RPTFE (but far above EPDM, for instance), so given operation within general valve and sealing limits, the answer is probably yes.

 

[bao2ye]

Thanks Gerhardl.