Stainless Steel bonnet extension for cold service to –325° F (–198° C), see ASME/ANSI B16.24.
Stainless Steel bonnet extension for cold service to –325° F (–198° C), see ASME/ANSI B16.24. This option uses the standard bronze bonnet with a removable extension made of 316SST:
- Available in a short 4 in. (101 mm) or long 6 in. (152 mm) extension (SST portion).
- Standard packing is a single set of PTFE chevron rings with live spring loading.
- Mounting brackets are available for use in high-vibration applications.
This option is suitable for cold, non-corrosive liquids and vapors, whenever external icing is possible or when the packing must be insulated from the cold fluid passing through the valve body.
The stainless steel extension is a superior insulator, compared to conventional bronze extensions, due to its greater strength and resistance to heat transfer.