Deskripsi
CF8 Flange Connection Straight-Through Floating Ball Valve
Model : Q41F-150LBP NPS 1
Brand : Shanghai Valve Factory
Product Overview
The Q41F-150LBP is a full-port, floating ball valve with flanged ends, designed for ANSI Class 150 pressure systems. Constructed from CF8 stainless steel, it offers excellent corrosion resistance and is suitable for a wide range of industrial fluids. The floating ball design ensures tight shut-off by pressing the ball against the downstream seat under pressure.
- Type: Floating ball valve (soft-seated)
- Model: Q41F-150LBP
- Size: NPS 1″ (DN25)
- Connection: ANSI B16.5 Class 150 flange
- Operation: Lever handle (manual)
- Design Standard: API 6D / ASME B16.34 / GB/T 12237
Specifications (NPS 1″, Class 150)
| Parameter | Value |
|---|---|
| Nominal Size | NPS 1″ (DN25) |
| Pressure Rating | Class 150 (PN20) |
| Bore Type | Full bore |
| Face-to-Face Length | ~127 mm |
| Flange Standard | ANSI B16.5 |
| Temperature Range | –29°C to +180°C (PTFE seat) |
| Leakage Class | API 598 (zero leakage) |
| End-to-End Standard | ANSI B16.10 |
| Test & Inspection | API 598 / GB/T 9092 |
Material List
| Component | Material |
|---|---|
| Body / Bonnet | CF8 (ASTM A351 Grade CF8 / SS304) |
| Ball | SS304 / SS316 |
| Stem | SS304 / SS316 |
| Seat | PTFE / RPTFE |
| Packing | PTFE / Graphite |
| Gasket | Graphite + SS304 spiral wound |
| Handle | Carbon Steel / SS304 |
| Fasteners | SS304 / A193-B7 / A194-2H |
| Stem Nut | Brass / SS304 |
The soft seat (PTFE) ensures low torque and tight shut-off, while the blow-out proof stem enhances safety.
Dimensions (NPS 1″, Class 150)
| Dimension | Value (mm) |
|---|---|
| L (Face-to-Face) | 127 |
| D (Flange OD) | ~108 |
| D1 (Bolt Circle) | ~79.5 |
| D2 (Bore) | ~25 |
| b (Flange Thickness) | ~11.5 |
| z–φd (Bolt Holes) | 4 × φ16 |
| H (Height incl. handle) | ~95–110 |
| W (Handle Length) | ~130–160 |
These dimensions follow ANSI B16.10 and B16.5 standards.
Application Areas
This valve is suitable for:
- Chemical and petrochemical pipelines
- Water and wastewater treatment
- Oil and gas systems
- Steam (low-pressure) and air lines
- Food and pharmaceutical (non-toxic media)
- General industrial fluid isolation
Its CF8 stainless steel body makes it ideal for mildly corrosive environments and clean media applications.
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