High-Performance Non-metallic Flanges for Industrial Applications
Non-metallic flanges have become essential components in modern piping systems, offering superior corrosion resistance and cost-effectiveness compared to traditional metal flanges. Our premium Non-metallic flanges are engineered to meet the most demanding industrial requirements.
Key Product Features
- Excellent chemical resistance against acids, alkalis, and solvents
- Lightweight construction reduces installation and maintenance costs
- Non-conductive properties eliminate galvanic corrosion risks
- Smooth interior surfaces minimize pressure drops
- Wide temperature range from -40°F to 300°F (-40°C to 150°C)
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High-grade reinforced thermoplastics |
| Pressure Rating | 150 psi (10.3 bar) to 300 psi (20.7 bar) |
| Sizes Available | 1/2" to 48" (DN15 to DN1200) |
| Standards Compliant | ASME B16.5, AWWA C207, DIN, ISO |
| Flange Faces | Raised face, flat face, ring joint |
Non-metallic Flange FAQ
Q: What are the primary advantages of Non-metallic flanges over metal flanges?
A: Non-metallic flanges offer several key advantages including complete corrosion resistance, lighter weight (reducing structural support requirements), electrical insulation properties, and typically lower lifetime costs due to eliminated maintenance needs. They're particularly advantageous in chemical processing, water treatment, and corrosive environments where metal flanges would deteriorate rapidly.
Q: How do I select the appropriate Non-metallic flange for my application?
A: Selection depends on four critical factors: chemical compatibility with your process media, required pressure rating, operating temperature range, and mechanical load requirements. Our technical team can assist with material selection - common options include PVC, CPVC, PP, PVDF, and FRP composites, each with specific performance characteristics.
Q: What maintenance is required for Non-metallic flanges?
A: Non-metallic flanges require significantly less maintenance than metal counterparts. Routine inspections should check for surface cracks, deformation, or excessive bolt stress. Unlike metal flanges, they don't require protective coatings or cathodic protection. For optimal performance, we recommend torque checks during the first 6-12 months of service.
Material Comparison Chart
| Material | Max Temp | Chemical Resistance | Pressure Rating |
|---|---|---|---|
| PVC | 140°F (60°C) | Excellent | 150 psi |
| CPVC | 210°F (99°C) | Excellent | 200 psi |
| PP | 180°F (82°C) | Very Good | 150 psi |
| PVDF | 280°F (138°C) | Exceptional | 300 psi |
Installation Guidelines
- Ensure pipe ends are properly prepared and deburred
- Use compatible gaskets designed for Non-metallic flanges
- Follow recommended bolt torque patterns and values
- Maintain proper flange alignment during assembly
- Use isolation kits when connecting to dissimilar metals
Industry Applications
Our Non-metallic flanges serve critical functions across multiple industries:
- Chemical Processing: Resistant to aggressive acids and solvents
- Water Treatment: Ideal for corrosive water chemistries
- Pharmaceutical: Meets hygienic requirements with smooth surfaces
- Semiconductor: Ultra-pure materials prevent contamination
- Mining: Handles abrasive slurries without degradation
Customization Options
We offer specialized Non-metallic flange solutions including:
- Insulating flanges with dielectric isolation
- Flanges with integrated liner protection
- High-purity versions for critical applications
- Custom bolt hole patterns to match existing systems
- Special coatings for UV protection or anti-static properties
Quality Assurance
Every Non-metallic flange undergoes rigorous testing:
- Dimensional verification to ±0.005 inch tolerance
- Pressure testing at 1.5x rated capacity
- Material certification from independent laboratories
- Surface inspection for defects
- Traceability through unique serial numbers