CPVC Stub End Flange

The CPVC Stub End Flange is a vital component in piping systems where detachable connections are required. Designed to be used with a backing ring or flange, this stub end allows for quick disassembly of pipe sections for inspection, cleaning, or replacement. Made from Chlorinated Polyvinyl Chloride (CPVC), it provides superior corrosion resistance, high temperature tolerance, and excellent mechanical strength. CPVC stub end flanges are ideal for industrial fluid handling systems that involve aggressive chemicals and elevated temperatures.

CPVC Stub End Flange

Key Feature of CPVC Stub End Flange
  • High Temperature Resistance: Suitable for hot water and high-temperature chemical applications up to 93°C (200°F).
  • Chemical Resistance: Withstands a broad range of acids, bases, salts, and organic compounds.
  • Durable Construction: Tough and rigid structure ensures longevity and mechanical reliability.
  • Easy Assembly and Disassembly: Facilitates maintenance or system changes without cutting the pipe.
  • Lightweight: Easier to handle and install compared to metal flanges.
  • Corrosion-Free: CPVC material is inherently resistant to rust, scaling, and microbial growth.
  • Cost-Effective Alternative: Offers performance similar to metal components at a lower cost.

Technical Details of CPVC Stub End Flange

Specification Details
Material CPVC (Chlorinated Polyvinyl Chloride)
Size Range ½” to 12” (15 mm to 315 mm)
End Type Stub end for use with backing ring or flange
Pressure Rating PN10 / SCH 80 / Class 150 (varies by standard)
Temperature Range Up to 93°C (200°F)
Standard Compliance ASTM D1784 (Cell Class 23447-B), DIN, ISO
Chemical Compatibility Excellent resistance to acids, alkalis, salts, and organics
Color Light Grey
Installation Typically joined using solvent cement
Applications Industrial piping, chemical processing, water treatment, HVAC
Technical Measurement of CPVC Stub End Flange
CPVC Stub End Flange Diagram
Size L M N O.D. R Bolt Circle Dia. No of Bolts
1/2 1-1/16 1-9/32 5/32 3-1/2 9/16 2-3/8 4
3/4 1-3/16 1-1/2 3/16 3-7/8 5/8 2-3/4 4
1 1-5/16 1-13/16 3/16 4-1/4 11/16 3-1/8 4
1-1/4 1-13/32 2-3/16 5/32 4-5/8 11/16 3-1/2 4
1-1/2 1-21/32 2-1/2 1/4 5-1/32 13/16 3-7/8 4
2 1-23/32 2-7/8 7/32 5-15/16 7/8 4-3/4 4
2-1/2 2-1/4 3-1/2 15/32 7 1-1/16 5-1/2 4
3 2-5/16 4-9/32 7/16 7-9/16 1-3/32 6 4
4 2-15/32 5-1/4 7/32 9-1/16 1-5/16 7-1/2 8
5 3-7/32 6-3/8 3/16 10-3/16 1-1/32 8-1/2 8
6 3-5/16 7-19/32 9/32 10-15/16 1-13/32 9-1/2 8
8 4-21/32 9-3/4 19/32 13-17/32 1-23/32 11-11/16 8
10 5-15/32 11-13/16 15/32 16 1-3/4 14-1/4 12
12 6-5/8 14 5/8 19 2-1/4 17 12
  • L – Overall Length

  • M – Diameter of Bolt Circle (or Center-to-Center Distance between Bolts, depending on flange type)

  • N – Bolt Hole Diameter

  • O.D. – Outside Diameter

  • R – Raised Face Diameter / Radius to Bolt Circle (varies by standard)

  • Bolt Circle Dia. – Diameter of the Bolt Circle (centerline through all bolt holes)

  • No of Bolts – Number of Bolts

Customization & Processing Options

Customizations Option Available for CPVC Stub End Flange

At Petron Thermoplast, we offer customized PVDF fittings to meet your specific system requirements.
Customization options include: