Ipex 257174 Frpp Acid Waste Sweep 90 Elbow 4 Inches

Product Description

The IPEX 257174 is a 4-inch flame-retardant polypropylene (FRPP) sweep 90 elbow engineered for the Enfield electrofusion-joint acid waste drainage system. This fitting handles corrosive chemical waste streams in laboratory, industrial, and institutional drain systems where standard PVC or ABS fittings are not suitable. The FRPP material carries an operating temperature range of -10 degrees F to 212 degrees F, allowing systems to be flushed with boiling water without joint failure. Heavy-gauge resistance wire is molded directly into the socket, eliminating loose components and ensuring controlled, repeatable fusion. Joints are completed in approximately 2 minutes using the Enfusion microprocessor-controlled unit. Licensed plumbers and pipefitters install this fitting where corrosive waste drainage code compliance is required.

The 257174 is part of the Enfield FRPP product line, designed for non-return-air plenum chemical waste drain applications in research labs, semiconductor facilities, pharmaceutical plants, and similar environments. The electrofusion joint system produces secure, maintenance-free connections rated for long-term chemical resistance. A non-flame-retardant polypropylene (NFRPP) version is also available separately for installations where FRPP is not required. The sweep geometry of this 90-degree elbow reduces flow restriction and aids drainage of viscous or particulate-laden waste streams.

Key Features

• Flame-retardant polypropylene (FRPP) construction rated for corrosive chemical waste drainage
• Electrofusion socket with molded heavy-gauge resistance wire — no loose components
• Operating temperature range: -10 degrees F to 212 degrees F, compatible with boiling-water flush
• Fusion joints completed in approximately 2 minutes, allowing multiple simultaneous joints
• Microprocessor-controlled Enfusion unit ensures joint repeatability and security
• Complies with ASTM F1412, ASTM D4101, NSF 14, and IAPMO listing requirements
• Sweep 90-degree geometry reduces flow restriction in acid waste drain lines

Compatibility

Designed for use within the IPEX Enfield electrofusion-joint system. Compatible Enfield FRPP and NFRPP pipe and fittings comply with ASTM F1412 and ASTM D4101 material specifications. Requires the Enfusion microprocessor-controlled fusion unit for proper joint completion. Not intended for return-air plenum applications.

Installation Notes

Installation must be performed by a licensed plumber or pipefitter familiar with electrofusion joining procedures and applicable local plumbing codes, including IPC acid waste provisions. De-energize and isolate the drain system and allow it to cool before cutting into an existing line. Use the Enfusion control unit according to the manufacturer's fusion cycle procedure — do not substitute with generic heat sources. Allow completed joints to cool undisturbed for the manufacturer-specified cure period before pressurizing or flowing waste through the line.

Technical Specifications

• Size: 4 inches
• Fitting Type: Sweep 90 Elbow
• Joint Type: Electrofusion (Enfield System)
• Material: Flame-Retardant Polypropylene (FRPP)
• Operating Temperature Range: -10 degrees F to 212 degrees F
• Standard Compliance: ASTM F1412, ASTM D4101
• Listings: NSF 14, IAPMO
• Application: Corrosive Chemical Acid Waste Drainage

Standard Information

• Brand: IPEX
• Manufacturer Part Number: 257174