Ipex 257551 Acid Waste Cleanout Tee 1-1/2 in Frpp

Product Description

The IPEX 257551 is a flame-retardant polypropylene (FRPP) acid waste cleanout tee designed for the Enfield electrofusion-joint drainage system. This fitting handles corrosive chemical waste in non-return-air plenum applications where standard PVC or ABS fittings are not appropriate. The polypropylene construction provides an operating temperature range of -10 degrees F to 212 degrees F, allowing systems to be flushed with boiling water without degrading the joint. Joints are made using a microprocessor-controlled Enfusion unit that fuses the socket in approximately two minutes, producing consistent, repeatable connections. Licensed plumbers and mechanical contractors install this fitting in chemical waste drain systems for laboratories, manufacturing facilities, and industrial or institutional buildings.

The 257551 cleanout tee is part of the Enfield FRPP pipe and fittings system, sized at 1-1/2 inches. It is used in gravity-flow acid waste and corrosive drainage systems where chemical resistance and flame retardancy are both required. The electrofusion socket design eliminates loose components; heavy-gauge resistance wire is molded directly into each socket. This makes it well suited for installations in tight or difficult-access areas where conventional solvent-weld or mechanical joints are harder to execute reliably.

Key Features

• Flame-retardant polypropylene (FRPP) construction rated for corrosive chemical waste drainage
• Electrofusion socket joints complete in approximately 2 minutes using a microprocessor-controlled Enfusion unit
• Operating temperature range: -10 degrees F to 212 degrees F, compatible with boiling-water flushing
• Heavy-gauge resistance wire molded into sockets — no loose components, controlled and repeatable fusion
• Heavy-duty socket terminal posts with protective ears for secure electrical connection during fusion
• Listed to NSF 14 and IAPMO; complies with ASTM F1412 and material standard ASTM D4101
• Maintenance-free joints with no breakage factor associated with glass or ceramic alternatives

Compatibility

Designed for use within the IPEX Enfield electrofusion pipe and fittings system for corrosive waste drainage. Pipe and fittings in the Enfield line comply with ASTM F1412 for polyolefin corrosive waste drainage systems. A non-flame-retardant polypropylene (NFRPP) version is also available where plenum flame ratings are not required.

Installation Notes

Installation must be performed by a licensed plumber familiar with electrofusion jointing procedures and applicable plumbing codes, including IPC and IAPMO guidelines. Shut off all flow and isolate the drain segment before cutting in the fitting. The Enfusion microprocessor-controlled unit must be used to make fusion joints — do not attempt heat-gun or open-flame fusion. Follow the Enfield system documentation for terminal-post connection sequence and fusion cycle time to ensure joint integrity.

Technical Specifications

• Size: 1-1/2 inches
• Material: Flame-Retardant Polypropylene (FRPP)
• Joint Type: Electrofusion socket
• Operating Temperature Range: -10 degrees F to 212 degrees F
• Standards Compliance: ASTM F1412, ASTM D4101
• Listings: NSF 14, IAPMO
• Application: Acid and corrosive chemical waste drainage, non-return-air plenum

Standard Information

• Brand: IPEX
• Manufacturer Part Number: 257551