Fuseal Fast-Lock 45° double reducing wye

  Datasheet (PDF)

The Georg Fischer Fuseal Fast-Lock 45-degree double reducing wye is an engineered flame-retardant polypropylene (PP) fitting designed for corrosive chemical drainage and laboratory DWV systems. Engineered to join opposing reduced branch lines into a primary drainage run, the mechanical fitting eliminates solvent cements, chemical primers, and waiting periods. It provides immediate operational readiness, a pressure rating of 35 psi for gravity or pumped discharge, and withstands continuous operating temperatures up to 82 degrees Celsius.

Technical specifications

The Fast-Lock double reducing wye provides a mechanically secured 45-degree dual-branch junction rated for intermittent pressure service up to 35 psi. Its design accommodates both gravity-fed drainage lines and vacuum or low-pressure pumped return systems.

• Joint technology: Fast-Lock mechanical joint with collar-locking retention
• Pressure rating: Rated for 35 psi (vacuum and intermittent pumped drainage)
• Continuous service temperature: Up to 82 degrees Celsius (180 degrees Fahrenheit)
• Intermittent service temperature: Up to 100 degrees Celsius (212 degrees Fahrenheit)
• Pipe compatibility: Connects to Schedule 40 flame-retardant (PPFR) and non-flame-retardant (PPNFR) piping
• Configuration: Double 45-degree reducing branches with all-socket connections

Materials and standards

Constructed from specialized flame-retardant polypropylene, the wye exhibits broad chemical inertness across corrosive acids, alkalis, salts, and solvents. The formulation incorporates UV-resistant pigmentation and thermal stabilization to protect exposed indoor and outdoor above-ground piping assemblies.

Polypropylene provides complete resistance against pitting, electrolytic degradation, and scaling. While fully resistant to dilute mineral acids and aqueous salt solutions, the material is attacked by strong oxidizing acids and can be weakened by chlorinated hydrocarbons and select organic solvents. The Fast-Lock design shares hub geometry with the Fuseal electrofusion system, enabling modular interchangeability between mechanical collars and electrofusion coils.

Installation and jointing

Mechanical assembly requires no specialized grooving tools, solvent cements, or open flames, enabling fast execution in tight pipe chases and between walls. Connections are secured using standard 8 mm or 10 mm socket drivers to tighten the collar to specified torque limits.

Because the Fast-Lock joint forms an instant mechanical seal, the line is immediately ready for hydrostatic or air pressure testing without chemical curing delays. The compact socket profile facilitates installation in confined spaces where conventional mechanical joints cannot fit. Installers can easily adapt any port between Fast-Lock mechanical clamps and Fuseal electrofusion collars using interchangeable hardware.