Spears 54211190272 Pvc Insert Adapter 1-1/2 in Insert X Mnpt

Product Description

The SPEARS 54211190272 is a standard PVC insert adapter designed to transition between insert and male NPT (MNPT) end connections in polyethylene piping systems. Measuring 2-31/32 inches in length, this molded gray PVC fitting is engineered for use with ASTM D 2104 Schedule 40 or D 2239 SIDR pressure-rated polyethylene pipe. The barbed insert end provides a secure mechanical grip against polyethylene materials, while the MNPT end threads directly into female-threaded fittings or valves. Plumbers and pipefitters working on irrigation, water distribution, and light industrial piping systems rely on this type of adapter to make clean transitions between flexible poly pipe runs and threaded pipe components.

This adapter is suited for residential and light commercial plumbing, irrigation, and water service applications where polyethylene pipe connects to threaded system components. The 1-1/2 inch nominal size covers a common pipe diameter found in main water service lines, irrigation headers, and low-pressure distribution systems. Its PVC construction resists chemical attack and corrosion, making it appropriate for potable water and general fluid handling installations. Fabricated domestically in the United States, it conforms to applicable ASTM and NSF standards for plastic fittings used in pressurized water systems.

Key Features

• Barbed insert end provides positive grip on polyethylene pipe without additional adhesive
• MNPT male threads connect directly to standard female-threaded fittings and valves
• Rigid PVC construction offers chemical and corrosion resistance for water service environments
• Molded construction ensures consistent wall thickness and dimensional accuracy
• NSF approved for use in potable water applications
• Domestic manufacture; compliant with ASTM D-1784, ASTM D-2609, and ASTM D-2239

Compatibility

Designed for use with ASTM D 2104 Schedule 40 standard-wall polyethylene pipe and ASTM D 2239 SIDR pressure-rated polyethylene pipe at a 1-1/2 inch nominal pipe size.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters in accordance with applicable local plumbing codes and ASTM guidelines. Shut off system pressure and drain the line before making any fitting connections. The insert end should be pushed fully onto the polyethylene pipe and secured with an appropriately sized clamp or crimp ring per the pipe manufacturer recommendations. Apply thread sealant tape or compound to the MNPT threads before engaging the female threaded fitting to ensure a leak-free connection.

Technical Specifications

• Nominal Size: 1-1/2 inches
• End Style: Insert x MNPT
• Length: 2-31/32 inches
• Material: PVC
• Color: Gray
• Method of Manufacture: Molded
• Weight: 0.11 pounds
• Country of Origin: United States
• Standards and Approvals: ASTM D-1784, ASTM D-2609, ASTM D-2239, NSF Approved

Standard Information

• Brand: SPEARS
• Manufacturer Part Number: 54211190272