A single-seated control valve with sturdy construction and a valve structure suitable for slurry fluids.
- Flange rating: JIS10K to 30K, ANSI/JPI 150 to 600, corresponding to valve nominal sizes 5B, 10B, and 12B.
- Flange rating: JIS63K, ANSI/JPI 900 to 2500, corresponding to valve nominal sizes 4B, 5B, and 6B.
- The guide section has sufficient sliding area, and has a structure that is robust and easy to disassemble and inspect.
| Structural drawing | Image
| Image
|
|---|---|---|
| Valve type | Top guided single seated control valve | High-pressure service top guided single seated control valve |
| Model No. | VST_ _ _ | VST_ _ _ |
| Size | 5", 10", 12" | 4", 5", 6" |
| Pressure rating | ANSI/JPI 150 to 600 JIS10K to 30K | ANSI/JPI 900 to 2500 JIS63K |
| End connection | Flanged : RF, FF, RJ Welded : SW, BW | Flanged : RF, RJ Welded : SW, BW |
| Body material | Carbon steel Stainless steel | Carbon steel |
| Trim material | 440CSS 316SS, 316SS with CoCr-A 316LSS, 316LSS with CoCr-A | 440CSS SUS304 with CoCr-A |
| Temperature range | -101 to 520°C | 0 to 520°C |
| Leakage performance | Class IV, IV-S1, V, VI | Class IV |
| Cv range | 99 to 1440 | class 1500 or less : 56 to 315 class 2500 : 39 to 210 |
| Range ability | 30:1 | 30:1 |
| Application | General-use process for petrochemical and chemical plant | High temperature and high pressure steam of boiler and turbine unit for power plant and private power generation |
| Option | － | － |
A wide range of available materials
Products can be provided to meet a variety of body material specifications, such as: carbon steel, which is generally used with water, steam, and fuel oil; highly corrosion resistant stainless steel, which is essential for controlling corrosive fluids; and resin.
Response to severe service
For severe service such as high temperatures and high differential pressures, cage-type single-seat valves with excellent cavitation resistance are available.
Excellent seat leakage performance
Metal seat tight shutoff (class IV) and soft seat tight shutoff (class VI) are available.
Inquiries about field instruments and control valves
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