Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Stainless Steel (ASTM A351 Gr. CF8/CF8M) |
| Stem / Spindle | SS 304 / SS 316 |
| Seat / Trim | PTFE / RPTFE / Integral |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | ASME B16.34 / API 603 / API 6D |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 to Class 600 / PN16 / PN40 |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | ASME B16.34 / API 603 / API 6D |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 to Class 600 / PN16 / PN40 |
Features & Benefits
Bubble-Tight Shutoff
Matched-lapped stem tip and integral seat provide zero leakage at 10,000 PSI differential.
Non-Rotating Stem Tip
Stem rotates but tip does not, preventing seat scoring and extending cycle life.
Precise Flow Control
Fine-pitch ACME threads (0.8 mm per turn) provide sensitive throttling for instrument calibration.
Forged Barstock Body
Eliminates porosity and inclusions common in castings; rated for cyclic pressure service.
Multiple Patterns
Straight, angle, and 3-way cross patterns reduce tubing runs and simplify panel layouts.