Pneumatic Control Valve that can be utilized in general and chemical service. The body/trim comes in a variety of material selection that includes: WCB/316L SST, CF3M/316L SST, or CW-12MW/Hast. Model 988 comes in two different seat constructions: metal and (Class IV) and a composition seat (Class VI). This model is available in various end connections such as raised face flanged, socket weld and NPT.
Additional information
| Valve Size | ¾”, 1”, 1-½”, 2” |
|---|---|
| Maximum CV | 0.25 to 50 |
| Materials | Body – CS, 316L SST, NI-Mo-Cr, CW- 12MW |
| End Connections | NPT, SW, separable flanges for Classes 150#, 300#, and PN40 |
| Temperature Range | -20°F to +750°F (-28.8°C to +398°C) |
| Pressure Drop | TFE seat- up to 1480 psid (102 bard) |
| Face-to face | ISA – 75.08.07 (long) |
Features & Benefits:
- High-grade trim components that can withstand corrosive chemicals (316L SST or Hastelloy C) and are rated for NACE service
- Flow-to-open (flow under) design increases rangeability and stability
- Trim can be stellated in metal seated design for flashing or partial cavitating liquid services
- Available in standard and internal/external live-loaded V-ring packing designs
- Recommended for flashing or partial cavitating liquid services or where extended time periods of On/Off or Low-flow (<10% open) operation occur and good shut-off is required
- CRN number is available
Manual
| 988-989 IOM |
988-989 IOM |
