What Are Plate Flanges?
Plate flanges are simple but essential pipe connectors, widely used in medium and low-pressure pipelines. They allow quick connection or disconnection of pipes. Manufactured as per ANSI B16.5 standard, these flanges are suitable for various industries including water supply, gas, and oil systems.
CL300 vs. CL600 – Key Differences
Specification | CL300 Plate Flange | CL600 Plate Flange |
---|---|---|
Pressure Rating | Up to 50 bar (725 psi) | Up to 100 bar (1450 psi) |
Thickness | Standard | Thicker for higher stress tolerance |
Weight | Lighter | Heavier |
Application | Water, low-pressure gas | Oil, steam, high-pressure gas |
Material & Quality Assurance
Haihao Group produces these flanges from high-quality carbon steel (A105 or equivalent). Every batch comes with an original Mill Test Certificate (MTC) to confirm chemical and mechanical properties. Surface treatment like rust-proof oil or black painting is also applied based on client needs.
Manufacturing Process
- Precision cutting from carbon steel plates
- Drilling bolt holes per ANSI B16.5
- Surface cleaning and anti-corrosion treatment
- Final inspection for flatness, hole accuracy, and thickness
Typical Applications
These plate flanges are used in:
- Oil and gas pipelines
- Fire protection systems
- Cooling water systems
- Industrial gas distribution
Certifications & Inspection
All products comply with ANSI B16.5 dimensional standards. We offer third-party inspection reports (SGS, BV) upon request. Flanges can also be produced to meet ABS or DNV offshore project requirements.
FAQs
Q1: How to choose between CL300 and CL600?
A1: Choose CL300 for low to medium pressures; CL600 for high-pressure or critical systems.
Q2: Can you customize flange thickness or bore size?
A2: Yes, flanges can be produced per customer drawings or special requirements.
Q3: What surface coatings are available?
A3: Black paint, anti-rust oil, galvanizing on request.
Why Choose Haihao Group?
- 30+ years of pipe fitting manufacturing experience
- Strict quality control with full traceability
- Global supply to oil & gas, chemical, and marine industries
- Fast delivery and competitive pricing
Contact Us
Email: sales@haihaogroup.com