The SCH80/DIN Looper Flange is an engineered component designed for creating reliable and demountable connections in PVC and CPVC piping systems. It facilitates the integration of plastic pipelines with metallic flanges, pumps, and valves, adhering to both SCH80 and DIN standards. This product is manufactured to ensure dimensional consistency and mechanical integrity under specified operating conditions, making it suitable for a wide range of industrial applications.
Product Features
- Dual Standard Compatibility: Designed to fit both SCH80 and DIN bolt patterns, providing a versatile solution for systems requiring international compatibility. This feature simplifies procurement for projects that must comply with multiple regional standards.
- Corrosion Resistance: Fabricated from UPVC (Unplasticized Polyvinyl Chloride) or CPVC (Chlorinated Polyvinyl Chloride), the flange body is resistant to a broad spectrum of chemicals, acids, alkalis, and salts. This characteristic is critical for long-term use in corrosive environments.
- Structural Integrity: The looper design allows the flange to rotate freely for bolt alignment, simplifying installation while the core hub maintains a rigid connection to the pipe. This prevents stress on the joints and ensures a secure seal.
- High-Pressure Rating: Engineered to withstand pressure ratings consistent with the SCH80 pipe schedule, making it suitable for applications requiring higher pressure tolerance than standard PVC systems.
Technical Specifications
| Material |
Dimensions |
Standard |
Nominal Pressure |
| UPVC (PVC-U) / CPVC (PVC-C) |
Refer to SCH80 and DIN specifications |
ASTM D1784 / DIN EN ISO 1452 |
PN10 / Class 150 |
| Available Sizes |
Connection Type |
Color |
Gasket Compatibility |
| 1/2 inch to 12 inch (DN15 to DN300) |
Solvent Cement Socket |
Gray (UPVC), Light Gray/Tan (CPVC) |
EPDM, FPM (FKM) |
Application Fields
The SCH80/DIN Looper Flange is utilized in systems that require a secure, chemically resistant, and demountable connection. Typical applications include:
- Water and wastewater treatment facilities
- Chemical processing and handling plants
- Industrial process piping for corrosive fluids
- Pool and aquatic systems requiring robust, long-lasting components
- Mining and refining operations
- Power generation facilities
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Frequently Asked Questions
1. How does a UPVC looper flange differ from a traditional fixed flange in installation and application?
A looper flange features a free-rotating ring, which simplifies the alignment of bolt holes during installation, a significant advantage in tight spaces or when pipes are already secured. A fixed flange requires precise rotational alignment of the entire pipe section, which can be more challenging. The rotating mechanism of the looper flange also helps in reducing stress on the piping system, particularly when connecting to fixed metal components. For specific installation instructions and best practices, consult our technical documentation or contact our support team.
2. What is the temperature and pressure limitation for the SCH80/DIN CPVC flange, and how does it compare to metal flanges in corrosive environments?
The SCH80/DIN CPVC flange is engineered for higher temperature applications than UPVC, with a maximum service temperature typically up to 200°F (93°C) and a pressure rating consistent with SCH80 standards. While metal flanges often have higher ultimate pressure ratings, they are susceptible to corrosion from many industrial chemicals. In contrast, the CPVC flange maintains its structural integrity in corrosive media, which can degrade metallic alternatives. The decision between CPVC and a metal flange should be based on a comprehensive analysis of the fluid type, operating temperature, and required pressure. Our engineering team can provide a detailed material compatibility analysis for your specific application.