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Series V817 Cryogenic Cold-Box Globe Valves
Brand: Koso Hammel DahlThe Series V817 control valve is designed specifically for use in ‘cold box’ applications.
It is a single-seated, body-guided globe style with threaded seat ring and an extended neck that allows the body to bonnet joint to be outside the cold box.
This design is generally used in throttling and/or isolation control of cryogenic liquids and gases.
Features- Low conduction through the neck extension and the valve stem makes the valve ideally suited for super-cooled environments
- Extended body neck design allows removal of the seat ring and plug without disturbing the cold box purge, vacuum, or insulation
- No gasketed joints inside the cold box or line insulation, eliminating potential leak paths
- Standard seat ring tools are available for removing trim
- Standard plug design provides metal seat and Class IV shut-off (proper actuator selection allow for Class V shut-off capability)
- A soft seat plug design is available for Class VI leakage
- Preferred mounting is 15 to 90 degrees from horizontal
- The optional Ice-Breaker packing box and/or live-loaded packing are available to minimize ice formation on the valve stem and coupling
- Mounting plate for cold box installation is offered as an accessory
Specifications
Brand
Body Style
- Cryogenic Globe
Body Size
- 1” to 6”
Body Rating
- ANSI Class 150
- ANSI Class 300
- ANSI Class 600
Body Materials
- 304 Stainless Steel
End Connections
- Socket Weld
- Flanged
- Butt Weld
Flow Coefficient
- Cv from 0.001 through 390
Leakage Class
- ANSI Class IV, V and VI