OS&Y Needle Type Valve - Specification
FEATURES
- Investment case yoke is formed by precision casting which enhances strength and perfect stem alignment.
- Standard non-rotating free swivel stem tip.
- Upper stem thread lubricant is isolated from system fluid.
- Non-rotating lower stem avoid galling damage to the seat and tip, as well as reduces the total friction area between the packing and lower stem.
- Back seating design provides secondary stem sealing and prevents stem blowout.
- Adjustable gland flange allows packing adjustment.
- Stem packing below thread design prevent media contamination and thread lubrication washout.
- Pressure rating upto 10,000 psig (690 Bar)
- Temperature rating are as follows:
PTFE: -65°F to 450°F (-54°C to 232°C)
Graphite: -65°F to 1200°F (-54°C to 649°C)
Material of construction:
| No. | Component | Material of Constructions | |||
| SS316 SS316L | Carbon steel A105 | Duplex | Inconel 625 | ||
| 1. | Body | SS316 SS316L | Carbon steel A105 | Duplex | Inconel 625 |
| 2. | Lower Bonnet | SS316 SS316L | Carbon steel A105 | Duplex | Inconel 625 |
| 3. | Packing Bolt | SS316 SS316L | Carbon steel A105 | Duplex | Inconel 625 |
| 4. | Stem Tip | SS316 SS316L | SS316 SS316L | Duplex | Inconel 625 |
| 5. | Stem | SS316 SS316L | SS316 SS316L | Duplex | Inconel 625 |
| 6. | Washer | SS316 SS316L | SS316 SS316L | Duplex | Inconel 625 |
| 7. | Handle | SS316 | |||
| 8. | Lock Nut | SS316 | |||
| 9. | Locking pin | SS316 | |||
| 10. | Cap | PVC | |||
| 11. | Screw | SS 316 | |||
| 12. | Packing | PTFE Graphite | |||
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