Pneumatic Globe Valve – Technical Data Sheet
Material: A105N (Forged Steel, Normalized)
Size: DN25 | Pressure: PN25 | Connection: Flanged RF
Item | Specificatie |
Kleptype | Pneumatic Globe Valve, Bolted Bonnet, Outside Screw & Yoke (OS&Y) |
Lichaamsmateriaal | A105N – Forged Carbon Steel, Normalized (improved impact toughness) |
Nominale grootte | DN25 (1”) |
Drukclassificatie | PN25 (Class 150 equivalent; also suitable for Class 300 with design verification) |
End Connection | Flanged, Raised Face (RF) |
Flange Standard | ASME B16.5 / HG/T 20592 (or as specified) |
Design Standard | ASME B16.34 / API 602 (for forged small bore valves) |
Face-to-face | ASME B16.10 / EN 558 |
- Material List (A105N Forged Steel Construction)
Onderdeel | Materiaal | Remarks |
Lichaam | A105N | Forged steel, normalized – superior strength and low-temperature toughness |
Bonnet | A105N | Forged, bolted bonnet design |
Disc / Plug | F6a (13Cr) + Stellite | Hardfaced for wear resistance; optional 304/316 SS |
Stang | F6a (13Cr) | Rolled threads, hardfaced; optional SS |
Seat Ring | Integral or threaded F6a + Stellite | Metal seated (Class V shut-off) |
Packing | Flexible Graphite + SS braid | Low emission, high temperature |
Gasket | Spiral Wound (SS + Graphite) | For bonnet flange seal |
Bolting | A193 B7 / A194 2H | For pressure-containing bolted joints |
- Pneumatic Actuator & Accessories
Parameter | Data |
Actuator | Piston type, single-acting (spring return) or double-acting |
Air Supply | 0.4 – 0.7 MPa (60 – 100 psi) |
Action | Fail Closed (air to open) / Fail Open (air to close) |
Accessories | Solenoid valve, limit switch, filter regulator, positioner (optional) |
Air Connection | 1/4″ NPT or G1/4 |
- Dimensions & Weight (Typical)
Dimension | mm (approx.) |
Face-to-Face (L) | 160 |
Flange OD (D) | 115 (ASME Class 150) |
Bolt Circle (K) | 85.0 |
Flange Thickness (C) | 18.0 |
Bolt Holes | 4 × ø14 |
Overall Height (H) | 450 – 550 (depending on actuator) |
Weight | ~15 – 20 kg (complete assembly) |
- Performance & Features
- Forged Steel A105N – Dense grain structure, no porosity, ideal for high-pressure, high-temperature, and low-temperature services.
- Metal Seating (Stellite) – ANSI/FCI Class IV or V shut-off, excellent for steam, hydrocarbons, and abrasive media.
- Pneumatic Actuation – Fast, remote automated control; fail-safe options available.
- Compact & Rugged – Small footprint, suitable for critical piping systems.
- Low Emission Packing – Flexible graphite packing reduces fugitive emissions.
- Application Examples
- Steam boiler blowdown
- High-pressure condensate
- Compressed air systems
- Oil & gas skids
- Industrial utilities
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