STAINLESS STEEL BUTTERFLYVALVE FLANGE
Nominal Diameter:10-2000mm
NominalPressure:0.25-16.0MPa
Product material:304,304L,321,316,316L,Q235
STAINLESS STEEL BUTTERFLY VALVE FLANGE
Precision-Engineered for High-Cycle Valve Applications
Product Features & Applications
- Optimized for Butterfly Valves:
- Centrally aligned bolt holes ensure uniform clamping force, preventing seat distortion during frequent actuation.
- Compatible with wafer/lug-style butterfly valves in chemical processing, HVAC, water treatment, and slurry services.
- Leak-Tight Performance:
- Raised face (RF) or flat face (FF) designs with fine-surface finish (1.6 μm Ra) for enhanced gasket compatibility.
- Pressure-balanced sealing minimizes torque requirements and extends valve lifespan.
- Material Flexibility:
- Austenitic stainless steel: 304/304L, 321, 316/316L (corrosion/pitting resistance).
- Carbon steel: A105, Q235 (cost-effective for low-pressure air/water systems).
- High-temperature alloys: Inconel, Hastelloy, or needle-type valve series steels (for abrasive/high-temp fluids).
Technical Specifications
| Parameter |
Details |
| Nominal Diameter |
DN10-DN2000 (3/8"-80") |
| Nominal Pressure |
PN2.5-PN160 (Class 150-900) |
| Connection Type |
Flat-face (FF) or raised-face (RF) |
| Drilling Standards |
ANSI B16.1, ASME B16.5, DIN 2501, JIS B2220 |
| Coating Options |
Epoxy, galvanized, or PTFE lining (on request) |
Quality & Compliance
- Material Certifications:
- ASTM/ASME SA182, SA240, SA350 (steel grades).
- EN 10204 3.1B test reports (mechanical properties, chemical analysis).
- PMI verification for alloy authenticity.
- Manufacturing Standards:
- Forged or cast construction (depending on size/pressure rating).
- 100% NDT inspection (MT, PT) + hydrostatic testing at 1.5x PN.
- Fire-safe design available per API 607 (for high-risk applications).
- Approvals:
- ISO 9001:2015, PED 2014/68/EU, AD2000-Merkblatt W0.
Product Advantages
- Versatile Installation:
- Lightweight yet robust for easy alignment with valve discs.
- Custom drilling patterns available for non-standard valve designs.
- Cost-Efficiency:
- Q235 carbon steel option reduces costs for low-pressure air/water lines.
- Batch production discounts for large-scale valve projects.
- Global Compatibility:
- Dual-marked certifications (e.g., 316L/S31603) for international projects.
- Laser-etched markings for permanent traceability.
Packaging & Support
- Packaging: Plywood crates with desiccant bags + steel edge protectors.
- Lead Time: 7-15 days (stock sizes); 25-35 days (custom alloys/coatings).
- Documentation: Mill test certs, material traceability, installation guides.
- After-Sales: 5-year warranty against manufacturing defects + 24/7 technical support.
Keywords: Butterfly Valve Flange, SS316L Valve Flange, Q235 Carbon Steel Flange, High-Temperature Alloy Flange, ASME B16.5 Flange, Needle Valve Series Flange, Forged Valve Flange.
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