Metal transition fitting PPFR x SS SPG x MPT

  Datasheet (PDF)

The Georg Fischer Fuseal metal transition fitting (part number 528907) provides a rigid, corrosion-resistant interface between flame retardant polypropylene drainage networks and threaded metallic piping systems. Engineered specifically for corrosive waste, laboratory drainage, and chemical DWV (drain, waste, and vent) applications, this precision-fabricated hybrid component couples a 2-inch flame retardant polypropylene (PPFR) spigot to a 2-inch stainless steel male pipe thread (MPT) transition. The fitting features an overall length L of 11.72 inches, comprising a 6.50-inch PPFR spigot length (L1) with an outer diameter X of 2.38 inches, and a 3.72-inch stainless steel threaded segment (L2). The plastic spigot end integrates seamlessly into Fuseal corrosive waste systems using either electrofusion couplings with locking collars or the Fuseal Fast-Lock mechanical joint collar system, providing modular adaptability without requiring grooving tools or solvent cementing. Designed to withstand aggressive laboratory chemical streams, the PPFR body demonstrates exceptional resistance to dilute mineral acids, alkalis, alcohols, solvents, and aqueous salt solutions, preventing pitting, scaling, and electrolytic degradation. Pigmentation within the polypropylene matrix ensures resistance to ultraviolet radiation for exposed above-grade runs while retaining heat-stabilized integrity under elevated thermal cycles. The system accommodates high-temperature continuous operating services up to 180 degrees Fahrenheit (82 degrees Celsius) and intermittent discharge temperatures up to 212 degrees Fahrenheit (100 degrees Celsius). Built for gravity DWV as well as intermittent pressure duties, such as vacuum lines and pumped drainage systems rated up to 50 psi for electrofusion or 35 psi for Fast-Lock assemblies, this robust stainless steel and polypropylene transition fitting guarantees mechanical strength and leak-tight joint reliability across life sciences, industrial processing, hospital, and university facilities.