Technical Data Sheet
Product: Oxygen Service Globe Valve
Size / Rating: 1″ – Class 600 (RF / BW)
- General Description
This globe valve is specifically designed for oxygen service, manufactured and cleaned in strict accordance with oxygen‑compatible requirements. The body is constructed of fully austenitic stainless steel, featuring an anti‑static design and rigorous degreasing procedures to ensure safe and reliable operation under high‑pressure oxygen conditions. It is widely used in air separation units, oxygen transmission pipelines, steelmaking, and chemical plants where safety is paramount.
- Basic Specifications
Parámetro | Especificación |
Tamaño | 1″ (DN25) |
Pressure Class | Class 600 (PN100) |
Design Type | Globe Valve (Bolted Bonnet) |
End Connections | Flanged RF (Raised Face) / Butt Weld (optional) |
Flange Standard | ASME B16.5 |
Temperature Range | -29°C ~ +200°C (depending on seating material) |
Medios de comunicación | Oxygen, Nitrogen, Inert Gases |
- Material Specification
No. | Part Name | Standard Material | Remarks |
1 | Cuerpo | CF8M (316 SS) / F316L | Austenitic stainless steel |
2 | Bonnet | CF8M (316 SS) / F316L | Same as body |
3 | Desct | 316L + Stellite hardfacing | Wear and erosion resistant |
4 | Asiento | Integral Stellite overlay on body | No loose seat, eliminates risk of loosening |
5 | Provenir | F316L / 17-4PH | High strength, corrosion resistant |
6 | Packing | Flexible Graphite + anti‑extrusion rings | Low emission, oxygen compatible |
7 | Stem Nut | Aluminum Bronze / Stainless Steel | Anti‑galling, spark resistant |
8 | Handwheel | Carbon Steel / Stainless Steel | Locking device optional |
- Special Design Features for Oxygen Service
4.1 Degreasing & Cleaning
- 100% degreasing – All components are thoroughly degreased and cleaned prior to assembly to ensure no oil, grease, or organic residues remain.
- Cleanliness verification – Inspected under UV light and tested for residual content in accordance with ASTM G93 or CGA G‑4.1.
- Packaging & labeling – Valves are packaged in clean, sealed bags and clearly labeled “Oxygen Service” or “Degreased”.
4.2 Material Compatibility
- All wetted metal parts are austenitic stainless steel (316/316L) with excellent corrosion and oxidation resistance.
- Packing and gaskets are non‑combustible, oxidation‑resistant flexible graphite, compatible with oxygen service.
4.3 Anti‑Static & Fire Safety Design
- Anti‑static device – A grounding spring ensures electrical continuity between the stem and body, preventing static charge accumulation.
- Blowout‑proof stem – Stem is designed with a blowout‑proof feature to prevent ejection in the event of packing failure.
- Fire safe – Optional design meeting API 607 requirements.
4.4 Flow Path Design
- Smooth, pocket‑free flow path minimizes particle accumulation and high‑velocity localized flow.
- Globe valve design with flow “under the disc” ensures tight shut‑off.
- Testing & Standards
Test / Standard | Reference |
Design & Manufacture | ASME B16.34 / BS 1873 |
Flange Standard | ASME B16.5 |
Pressure Testing | API 598 |
Shell Test | 1.5 × Class 600 (15.0 MPa) |
Seat Leakage Test | 1.1 × Class 600 (11.0 MPa) |
Degreasing Standard | ASTM G93 / CGA G‑4.1 |
Fugitive Emission (optional) | ISO 15848‑1 / TA‑Luft |
Fire Safe (optional) | API 607 / ISO 10497 |
- Installation & Maintenance Notes
6.1 Installation Precautions
- Flow direction – Install according to the flow arrow on the body (flow under the disc).
- Oil‑free handling – All tools, gloves, and sealing materials must be clean and oil‑free. Do not use oil‑based lubricants.
- Flange connection – Use oil‑free gaskets (spiral wound stainless steel recommended). Tighten bolts evenly in a cross pattern.
6.2 Operation & Maintenance
- Operación – Operate the handwheel smoothly and slowly to avoid pressure surges or friction sparks.
- Periodic inspection – Regularly inspect the packing area for leakage. If slight leakage occurs, carefully tighten the packing gland.
- Maintenance – After any repair, the valve must be re‑degreased before returning to oxygen service.
- Approximate Dimensions (for reference)
Dimension | Value (mm / inch) |
Face‑to‑Face Length (L) | ~216 mm (8.5″) |
Flange Outer Diameter | Per ASME B16.5 Class 600 |
Flange Bolt Circle | Per ASME B16.5 Class 600 |
Overall Height (H) | ~280 mm |
Handwheel Diameter | ~150 mm |
Note: Final dimensions are subject to the specific design; certified GA drawings should be referenced for engineering purposes.
Remarks:
- This valve is dedicated to oxygen service and must not be used in non‑degreased piping systems.
- For actuated versions (electric or pneumatic), an ISO 5211 top mounting flange is available; the actuator and coupling must also be degreased.
- For high‑pressure oxygen service (> 3 MPa), a slow‑closing actuator is recommended to avoid pressure surges.
GARANTÍA:
SAVVY VALVES se compromete a ofrecer una calidad de producto excepcional y un servicio posventa sin complicaciones. Nuestras válvulas tienen una vida útil mínima garantizada de 12 meses, durante los cuales suministraremos todos los repuestos necesarios e instrucciones detalladas de mantenimiento de forma gratuita. Durante el período de garantía, si se produce algún daño no provocado por el hombre, reemplazaremos los componentes sin coste alguno y ofreceremos soporte técnico profesional. Una vez vencida la garantía, los clientes solo deberán pagar el coste de los repuestos y seguirán beneficiándose de descuentos en los servicios de mantenimiento. Nuestro objetivo es ayudar a los clientes a reducir los costes operativos y mejorar la eficiencia de la producción mediante una calidad fiable y un soporte posventa integral. Ya sea para consultas técnicas o necesidades de mantenimiento, nuestro equipo de expertos responderá con prontitud para garantizar que su sistema de válvulas mantenga un rendimiento óptimo en todo momento.