Model 989
SKU#:
Model 989
Description
The Model 989 is a globe-style, pneumatic control valve designed primarily for general and chemical service. The valve's body/trim materials are available in WCB/316L SST or CF3M/316L SST constructions.
Standard trim is metal seated design giving Class IV shutoff. Optional composition seat design gives Class VI shutoff. Available in body sizes 1" through 2" (DN25–DN50) with flanged end connections.
Design Pressure
Maximum Allowable Working Pressure: Up To 740 psig (51 Barg)
Line Sizes
- 1" (DN25)
- 1-1/2" (DN40)
- 2" (DN50)
End Connections
- Flanged Only – All sizes and body materials. Separable Type; standard is CS flanges and CS split rings, optional SST.
Body Materials
- Stainless Steel
- Carbon Steel
Features
- All wetted trim components of 316L SST.
- Dual stem guiding:
- improved shutoff,
- increased packing life,
- maximized stability.
- Standard internally live-loaded V-ring packing.
- Multiple packing designs to meet reduced fugitive emission levels.
- Flow-to-open design for increased:
- rangeability,
- stability.
- Quick change trim.
- High pressure drop capability, up to 740 psid (51.0 Bard).
- Multiple reduced trim selections.
- Equal percent or linear characterization.
- External corrosion protection.
- Face-to-Face dimensions - ISA 75.08.01 (“Short Pattern”).
- Standard Actuator compliant with IEC 60534-6-1 for mounting standardized positioners.
| Line Size | 1" (DN25), 1.5" (DN40), 2" (DN50) |
|---|---|
| End Connections | Flanged |
| Service | Gases, Liquids, Steam |
| Body Material | Carbon Steel, Stainless Steel |
