Blanking flange set PP-H PN10

  Datasheet (PDF)

The Georg Fischer PROGEF Standard PP-H blanking flange set provides an engineered, pressure-tight termination for industrial polypropylene piping systems operating at a nominal pressure of PN10. Designed for industrial plant engineering, chemical processing, and wastewater treatment infrastructure, this assembly delivers dependable line isolation, system blanking, and convenient access points for future piping extensions or scheduled maintenance inspections across metric pipe dimensions from d63 mm up to d630 mm.

Technical specifications

This blanking flange assembly combines a solid blind plate with an optimized composite backing flange to guarantee uniform bolt load distribution and reliable joint tightness at 10 bar nominal pressure. The engineered contact surface prevents gasket slippage under dynamic operational loads.

• Nominal pressure rating: PN10 (10 bar) for reliable hydrostatic containment across all sizes
• Sealing surface profile: combined flat and serrated jointing face for enhanced elastomeric gasket retention
• Dimensional metric envelope: compatible with pipe outer diameters from d63 mm up to d630 mm
• Operational service life: designed for 25 years in continuous water service at 20 degrees Celsius
• Bolt torque distribution: optimized composite backing ring prevents perimeter creeping and flange distortion

The dual-profile sealing face incorporates concentric serrations alongside a flat contact section. This geometry optimizes unit contact pressure against standard elastomeric flange gaskets, eliminating gasket extrusion under mechanical vibration and cyclic temperature changes.

Materials and standards

The components are manufactured strictly from premium industrial thermoplastics designed to resist aggressive process chemicals and environmental degradation. The blind plate is injection moulded from high-grade isotactic polypropylene homopolymeride, designated as beta-PP-H.

The loose backing ring is produced from UV-stabilised polypropylene reinforced with 30 percent chemically coupled glass fibres (PP-GF30) in graphite black. In larger dimensions, the backing ring incorporates integrated steel inserts to maintain rigidity and prevent bolt relaxation under continuous clamping stress. The chemically inert beta-PP-H polymer exhibits superior resistance against inorganic acids, alkalis, and aqueous salt solutions, complying fully with international standards for pressure-bearing industrial thermoplastic piping systems.

Applications

This PP-H blind flange set is engineered for harsh process environments where metallic blind flanges suffer from pitting, galvanic corrosion, or chemical attack. It serves as a dependable blind isolation end cap in chemical manufacturing plants, industrial wastewater treatment facilities, process effluent lines, and surface treatment installations.

Engineers and installers specify the PROGEF Standard blanking flange set to cap header manifolds, isolate redundant branch lines, and seal inspection ports securely while retaining rapid mechanical disassembly capabilities for clean-in-place procedures and planned network expansions.