Spears 54211155400 Pvc Female Adapter 4 in Socket X Fnpt Sch 80

Product Description

The SPEARS 54211155400 is a 4-inch Schedule 80 PVC female adapter designed for pressure piping systems. It connects a socket end to a female NPT threaded port, allowing a smooth transition between solvent-welded PVC pipe and threaded fittings. Molded from gray PVC, this adapter meets the dimensional and pressure requirements of Schedule 80 Extra Heavy service. At 3-31/32 inches in length, it fits standard 4-inch nominal pipe and is manufactured domestically. Licensed plumbers and pipefitters install this fitting in industrial, commercial, and municipal water systems where Schedule 80 pressure ratings are specified.

This adapter is used in pressure piping applications requiring a durable, corrosion-resistant connection between PVC socket pipe and female-threaded components. Common installations include process water lines, irrigation mains, chemical distribution headers, and commercial plumbing systems. The socket end accepts standard 4-inch PVC pipe for solvent cement joining, while the FNPT end receives a male-threaded valve, pump port, or equipment connection. Schedule 80 ratings make it suitable for higher-pressure service lines where standard Schedule 40 fittings are insufficient.

Key Features

• 4-inch nominal size with Socket x FNPT end configuration
• Schedule 80 Extra Heavy pressure rating for demanding service conditions
• Molded PVC construction provides chemical and corrosion resistance
• 3-31/32 inch overall length fits standard 4-inch nominal pipe systems
• Gray color consistent with Schedule 80 PVC system identification
• Domestically manufactured to support quality control standards

Compatibility

Designed as an OEM-style replacement and standard-service fitting for 4-inch Schedule 80 PVC pressure piping systems using solvent-welded socket connections and female NPT threaded ports.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with local plumbing codes and ASTM standards for PVC pressure piping. Depressurize and drain the line completely before cutting or joining. Use only approved PVC primer and solvent cement on the socket end, and allow full cure time before restoring pressure. Do not over-torque threaded connections on the FNPT end, as PVC threads are susceptible to cracking under excessive force.

Technical Specifications

• Nominal Size: 4 inches
• End Style: Socket x FNPT
• Overall Length: 3-31/32 inches
• Schedule Rating: Schedule 80 Extra Heavy
• Fitting Type: Female Adapter
• Service Type: Pressure
• Material: PVC
• Color: Gray
• Method of Manufacture: Molded
• Origin: Domestic

Standard Information

• Brand: SPEARS
• Manufacturer Part Number: 54211155400