PP Stub End Flange Graphics

PP Stub End Flange

The PP Stub End Flange is a pipe fitting used in conjunction with a backing flange to facilitate easy dismantling of pipe sections. It is manufactured from high-quality polypropylene (PP), known for its excellent chemical resistance, corrosion-free nature, and suitability for aggressive industrial environments. The stub end portion is welded to the pipe, while the backing flange allows the connection to be bolted to a matching flange, making it ideal for systems requiring frequent maintenance or disassembly.

Key Features of PP Stub End Flange

  • Modular Flange Connection: Enables easy installation and disassembly of piping systems using backing flanges.
  • High Chemical Resistance: Withstands exposure to corrosive substances such as acids, alkalis, and salts.
  • Non-Corrosive & Lightweight: Offers long-term durability without rusting or metal fatigue.
  • Heat and Pressure Resistant: Suitable for a wide range of industrial temperatures and pressures.
  • Fusion Weld Compatibility: Can be easily butt welded to polypropylene piping.
  • Versatile Use: Compatible with metal or plastic flanges for flexible application.
  • Reusable Backing Flange: Only the stub end is fused, making maintenance or replacement cost-effective.

Technical Information

Parameter Details
Product Name
PP Stub End Flange
Material
Polypropylene Homopolymer (PP-H) or Random Copolymer (PP-R)
Size Range
20 mm to 400 mm (larger sizes available upon request)
Pressure Rating
PN 6 / PN 10 / PN 16
Connection Type
Butt Fusion (stub end), Bolted (backing flange)
Color
Black or Grey
Temperature Range
0°C to +90°C (short-term up to 100°C)
Chemical Resistance
Excellent – suitable for most acids, alkalis, salts, and organic solvents
Installation Method
Butt Fusion welding for stub end, bolting for flange
Standard Compliance
DIN 8077/8078, ISO 4427, EN ISO 15494
DIN 8077/8078, ISO 4427, EN ISO 15494 Applications
Industrial piping, water treatment, chemical handling, irrigation, process piping
Service Life
Long service life with minimal maintenance
UV Resistance
Moderate; recommend protection for prolonged outdoor exposure