Industrial process and chemical piping systems require valves capable of handling corrosive fluids and demanding operating conditions. African Valve, an F317L Valves Manufacturer in Nigeria, provides F317L stainless steel valve configurations for isolation and flow-control applications. ASTM A182 F317L is a forged stainless steel grade corresponding to UNS S31703, with material selection based on the valve design and service conditions.
F317L Valves Features
- Enhanced corrosion resistance – Suitable for selected corrosive process environments
- Higher molybdenum content – Improves localized corrosion resistance compared with 316L
- Pitting and crevice resistance – Suitable for selected chloride-containing services
- Chemical-service suitability – Used in selected chemical and petrochemical applications
- Reliable isolation – Supports dependable pipeline shut-off
- Low-carbon construction – Helps reduce intergranular corrosion susceptibility after welding
- Good mechanical properties – Suitable for appropriately rated process applications
- Actuation options – Manual, gearbox, pneumatic or electric operation depending on valve design
Technical Specifications
Parameter | Specification |
Valve Type | F317L Gate / Globe / Ball / Check / Butterfly Valve |
Material Grade | ASTM A182 F317L / UNS S31703 |
Application | Chemical / Petrochemical / Oil & Gas / Process Piping |
Size Range | Typically DN15 to DN600 or larger, depending on valve type |
Pressure Rating | Class 150 / 300 / 600 / 900 / 1500 or PN-rated options |
End Connection | Flanged / Threaded / Socket Weld / Butt Weld |
Operation | Handwheel / Lever / Gear Operated / Pneumatic / Electric Actuated |
Flow Direction | Bi-Directional or Uni-Directional, depending on valve design |
Materials & Components
- Body: ASTM A182 F317L / ASTM A351 CG3M
- Bonnet: F317L / CG3M
- Disc / Ball: F317L / UNS S31703
- Stem / Shaft: F317L / Stainless Steel
- Seat: PTFE / RPTFE / Graphite / Metal
- Bearing: Stainless Steel / PTFE-Based Materials
- Gasket: PTFE / Graphite / Spiral Wound
- Packing: Graphite / PTFE-Based Materials
- Fasteners: Stainless Steel / Corrosion-Resistant Alloy
- Trim: F317L / Compatible Corrosion-Resistant Alloy
Material selection depends on the operating fluid, pressure, temperature, chloride concentration and corrosion conditions. F317L has higher molybdenum content than 316L, providing improved resistance to pitting and crevice corrosion in selected corrosive services.
Applications
- Oil & Gas - Process and pipeline isolation
- Petrochemical & Refining - Corrosive process fluids
- Chemical Processing – Aggressive chemical services
- Fertilizer Plants - Corrosive process systems
- Power Generation - Process and utility piping
- Water Treatment - Corrosive water and chemical systems
Testing & Standards
- Material Standards: ASTM A182 F317L / ASTM A351 CG3M, where applicable
- Design: ASME B16.34, where applicable
- Testing: API 598 / ISO 5208, depending on valve type and project requirements
- End Connections: ASME B16.5 / ASME B16.25, where applicable
- Valve-Specific Standards: API 600, API 602, API 594, API 609, API 6D or ISO 17292, depending on valve type
Standard F317L Valves Products
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