High Pressure China Manufacturer ASTM A105n Flange 1/2\"-72\" N6 Inch Pipe Flange Class150~900 Sch40 Sch80
Product Details
| Customization: | Available |
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| Size: | 1/2''-12'' |
| Product Name: | Flange |
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Basic Info.
- Warranty
- 2 Years
- Material
- Brass, Stainless Steel,Copper/PVC/Plastic/HDPE
- Transport Package
- Wooden Case
- Specification
- customized
- Trademark
- Yoonad
- Origin
- China
- HS Code
- 8481804090
- Production Capacity
- 10000PCS/Year
Packaging & Delivery
- Package Size
- 120.00cm * 80.00cm * 80.00cm
- Package Gross Weight
- 60.000kg
Product Description


Product Description
Valve flanges are integral connecting components designed to attach valves to piping systems, facilitating secure and detachable joints for fluid or gas conveyance. Characterized by a flat, circular disc structure with evenly distributed bolt holes around the perimeter, they enable easy assembly and disassembly through bolted connections, eliminating the need for permanent welding and simplifying valve maintenance, replacement, or inspection.
Constructed from high-performance materials tailored to diverse operating conditions, common options include carbon steel,stainless steel, brass, and alloy materials. Material selection is determined by factors such as the corrosiveness of the conveyed medium, operating pressure, temperature range, and mechanical strength requirements, ensuring long-term stability and leak-proof performance even in harsh industrial environments.
Widely applied across residential, commercial, and industrial sectors—including water supply systems, HVAC, petrochemical processing, power generation, and food and beverage production—valve flanges play a critical role in maintaining system integrity.
Their precision-manufactured sealing surfaces, paired with gaskets, ensure tight connections that prevent media leakage, while their standardized dimensions allow compatibility with various valve types and piping specifications, enhancing versatility and practicality in piping system design and operation.

Product Advantages
a) Secure and Reliable Connection:
Valve flanges create robust, leak-tight joints through bolted assembly and gasket sealing. The evenly distributed bolt holes ensure uniform pressure across the sealing surface, minimizing the risk of fluid or gas leakage even under high-pressure and high-temperature operating conditions, thus safeguarding system operational safety.
Valve flanges create robust, leak-tight joints through bolted assembly and gasket sealing. The evenly distributed bolt holes ensure uniform pressure across the sealing surface, minimizing the risk of fluid or gas leakage even under high-pressure and high-temperature operating conditions, thus safeguarding system operational safety.
b) Easy Assembly and Disassembly:
Unlike permanent welding connections, valve flanges enable tool-assisted assembly and disassembly without damaging valves or piping. This feature greatly simplifies maintenance tasks such as valve inspection, repair,and replacement, reducing downtime and improving the efficiency of system maintenance operations.
Unlike permanent welding connections, valve flanges enable tool-assisted assembly and disassembly without damaging valves or piping. This feature greatly simplifies maintenance tasks such as valve inspection, repair,and replacement, reducing downtime and improving the efficiency of system maintenance operations.
c) Versatile Compatibility:
With standardized dimensions and diverse material options, valve flanges are compatible with a wide range of valve types (gate valves, ball valves, butterfly valves, etc.) and piping materials (carbon steel, stainless steel, plastic, etc.). This versatility makes them adaptable to various piping system configurations and application scenarios, enhancing their universal applicability.
With standardized dimensions and diverse material options, valve flanges are compatible with a wide range of valve types (gate valves, ball valves, butterfly valves, etc.) and piping materials (carbon steel, stainless steel, plastic, etc.). This versatility makes them adaptable to various piping system configurations and application scenarios, enhancing their universal applicability.
d) Excellent Adaptability to Harsh Environments:
Manufactured from high-performance materials with corrosion resistance, high-temperature resistance, and pressure resistance, valve flanges can operate stably in harsh industrial environments such as those involving corrosive chemicals, high-pressure gases, or extreme temperature fluctuations. This adaptability extends the service life of both the flange itself and the entire piping system.
Manufactured from high-performance materials with corrosion resistance, high-temperature resistance, and pressure resistance, valve flanges can operate stably in harsh industrial environments such as those involving corrosive chemicals, high-pressure gases, or extreme temperature fluctuations. This adaptability extends the service life of both the flange itself and the entire piping system.
e) Simplified System Expansion and Modification:
The detachable nature of flange connections facilitates easy expansion or modification of piping systems. When adding new branches, replacing equipment, or adjusting the system layout, flange connections allow for quick disassembly and reassembly without extensive piping reconstruction, reducing project costs and construction time.
The detachable nature of flange connections facilitates easy expansion or modification of piping systems. When adding new branches, replacing equipment, or adjusting the system layout, flange connections allow for quick disassembly and reassembly without extensive piping reconstruction, reducing project costs and construction time.

How dose valve work?
To utilize valve flanges effectively, start with precise selection based on system requirements: match flange material to the conveyed medium (e.g., stainless steel for corrosive fluids, carbon steel for general applications) and ensure dimensional compatibility with valves and piping. Prior to installation, clean sealing surfaces thoroughly to remove debris, rust, or oil, as contaminants can compromise sealing performance.
Use appropriate gaskets tailored to operating pressure and temperature, then align flanges accurately to avoid misalignment-induced leaks. Tighten bolts uniformly in a crisscross pattern to ensure even pressure nstallation, conduct pressure tests to verify sealing integrity. Regular inspection and timely replacement of worn gaskets or damaged flanges further maintain system reliability.

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