A pressure-balanced, double-seated control valve that meets Universal Oil Products (UOP) standards.
- The plug is held separately at the top and bottom so that it is resistant to vibration and wear.
- Control of high differential pressure lines where slurry and reliability are important
- Double-seated with seat leak class IV
| Structural drawing | Image
|
|---|---|
| Valve type | Top & bottom guided double seat control valve |
| Model No. | ADVB_ _ _ /ADVM_ _ _ |
| Size | 6" to 12" |
| Pressure rating | model ADVB_ _ _: ANSI/JPI 150, JIS10K model ADVM_ _ _: ANSI/JPI 300, JIS16K to 30K |
| End connection | Flanged : RF |
| Body material | Carbon steel Stainless steel |
| Trim material | 316SS, 316SS with CoCr-A 630SS |
| Temperature range | -45 to 400°C |
| Leakage performance | Class IV |
| Cv range | 215 to 1580 |
| Range ability | 50:1 |
| Application |
|
| Option | Low emission gland packing |
A wide range of material specifications
Products can be provided by using different materials for valve stems - e.g., carbon steel is generally used with water, steam, and fuel oil; and high corrosion resistant stainless steel that is essential for controlling corrosive fluids.
Corresponding to service
The excellent anti-cavitation performance of these cage valves plays an essential role in controlling fluids at high temperatures and under high differential pressures. Optional specifications can be applied to reduce aerodynamic noise produced by steam and gas.
Excellent seat leakage performance
Metal sheet tight shut (class III or IV) are available.
Excellent external leakage prevention performance
A bellows seal can be added to valve stems. Increasingly sought-after specifications for gland packings can be applied to comply with fugitive emission regulations of volatile organic compounds.
High control performance
High control performance is achieved by a combination of wide rangeability and a smart valve positioner.
The original internal valve structure adopted by azbil essentially eliminated the shortcomings of conventional double-seated control valves that suffered from reversal of fluid reaction force, thereby achieving stable control.
