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The IPEX 257396 is a flame-retardant polypropylene (FRPP) fusion reducing wye fitting designed for chemical and acid waste drainage systems. Part of the Enfield electrofusion-joint system, this 3-inch by 2-inch reducing wye uses heavy-gauge resistance wire molded directly into the socket to deliver controlled, repeatable fusion joints. Joints are completed in approximately 2 minutes using a microprocessor-controlled Enfusion unit, which ensures consistent fusion quality across multiple connections. The fitting is manufactured from FRPP with an operating temperature range of -10 degrees F to 212 degrees F, making it suitable for systems that require periodic flushing with boiling water. Licensed plumbers and drain system installers working in chemical waste applications are the primary installers of this fitting.
The IPEX 257396 is intended for non-return-air-plenum chemical waste drainage installations in laboratory, industrial, and commercial facilities where corrosive or acid waste must be safely conveyed. The Enfield FRPP system is well suited for environments where glass or PVC drain systems are inadequate due to chemical exposure or thermal cycling. The electrofusion joining method eliminates loose components and reduces overall installed cost compared to glass piping systems while removing the risk of breakage during handling and installation.
Designed for use within the IPEX Enfield electrofusion-joint system for FRPP corrosive and acid waste drainage piping. Compatible pipe and fittings must comply with ASTM F1412 for polyolefin corrosive waste drainage systems. A non-flame-retardant polypropylene (NFRPP) version is also available from IPEX upon request.
Installation must be performed by a licensed plumber familiar with electrofusion joining procedures and applicable plumbing codes, including IPC and IAPMO standards. De-energize and isolate all connected systems before cutting into existing drain lines. Fusion joints require the use of a compatible microprocessor-controlled Enfusion unit — do not attempt heat-gun or solvent-cement joining on electrofusion fittings. Allow each joint to complete its full fusion and cool-down cycle before applying pressure or flow.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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