Irwin IR1909ZR Npt Pipe Tap 1-1/2 Inches

Product Description

The IRWIN IR1909ZR is a 1-1/2-inch NPT pipe tap designed for cutting internal threads in pipe fittings, valve bodies, and similar threaded connections. NPT (National Pipe Taper) taps produce tapered threads that create pressure-tight seals when assembled with matching fittings, making this tool standard in plumbing, HVAC, and industrial piping work. At 1-1/2 inches, this is a large-diameter tap suited for main line fittings and heavy-duty mechanical connections. Plumbers, pipefitters, and HVAC technicians use this tap when threading new or replacement ports in ferrous and non-ferrous pipe components.

This tap is appropriate for use in residential and commercial plumbing and piping applications where 1-1/2-inch NPT threaded connections are required. Typical use cases include threading valve bodies, manifold ports, and cast fittings on gas, water, and HVAC refrigerant piping systems. It is sold individually and intended for use with a compatible tap handle or tap wrench sized for the tap shank.

Key Features

• NPT tapered thread profile produces pressure-tight pipe connections
• 1-1/2-inch tap size covers main line and large-diameter fitting applications
• Sold as a single tap — no additional pieces required
• Designed for use with standard tap handles sized to the shank

Compatibility

Designed as an OEM-style threading tool for 1-1/2-inch NPT applications in plumbing, pipefitting, and HVAC mechanical systems.

Installation Notes

This tap should be used by a licensed plumber or pipefitter with experience in threading operations. Always secure the workpiece firmly before tapping, use appropriate cutting fluid to reduce heat and extend tap life, and back the tap out periodically to clear chips. Follow applicable codes such as the IPC or IFGC when making threaded connections on pressurized piping systems.

Technical Specifications

• Thread Type: NPT (National Pipe Taper)
• Tap Size: 1-1/2 inches
• Unit of Measure: Each
• Minimum Order Quantity: 1
• UPC: 042526019098

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR1909ZR