Compact, high-performance single-seat control valve suitable for heavy duty service.
- Valve nominal sizes are ½B, ¾B, and 1B.
- Wide applications in the control of high temperature, low temperature, and high pressure lines where the importance is placed on the reliability of low flow rate control
- Choice of steam jacket and electric controls
- Certified as SIL3-capable by the U.S. company exida
| Structural drawing | Image
|
|---|---|
| Valve type | Small-port single seated control valve |
| Model No. | HLS_ _ _ |
| Size | 1/2 in. to 1 in. |
| Pressure rating | ANSI/JPI 150 to 600 JIS10K to 30K |
| End connection | Flanged : RF, FF, RJ Welded : SW, BW |
| Body material | Carbon steel Stainless steel |
| Trim material | 440CSS 316SS, 316SS with CoCr-A 316LSS, 316LSS with CoCr-A 329J1SS |
| Temperature range | −196 to 566°C |
| Leakage performance | Class IV, IV-S1, V, VI |
| Cv range | 0.01 to 14 |
| Range ability | 20:1 to 50:1 (option 75:1) |
| Application | General-use process for petrochemical and chemical plant flushing service |
| Option | Bellow seal bonnet, steam jacket Low emission gland packing |
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.
Control of highly viscous fluids, slurry, and coagulable fluids
Control of various fluids is enabled by hardening of the valve interior, self-washing structure (optional), and steam jacketing (optional) to prevent coagulation by keeping the valve body hot.
Excellent seat leakage performance
Metal seat tight shutoff (class V) and soft seat tight shutoff (class VI) 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 emissions regulations for volatile organic compounds.
High control performance
High control performance is achieved by a combination of wide rangeability and a smart valve positioner.
