Irwin IR1908ZR Npt Pipe Tap 1-1/4 Inches

Product Description

The IRWIN IR1908ZR is a 1-1/4-inch NPT pipe tap designed for cutting internal tapered pipe threads in metal pipe fittings, valves, and threaded ports. NPT (National Pipe Taper) taps produce the tapered thread form required for pressure-tight connections in plumbing, HVAC piping, and gas distribution systems. This tap is sold as a single unit and is sized for 1-1/4-inch nominal pipe thread applications. It is a hand or machine tap used by plumbers, pipefitters, and mechanical contractors when threading new ports or chasing damaged internal threads in ferrous and non-ferrous materials.

The IR1908ZR is suited for maintenance, repair, and fabrication work on residential and commercial piping systems. Common applications include threading pipe flanges, manifold blocks, pump housings, and valve bodies that require a 1-1/4-inch NPT internal thread. It is appropriate for use in plumbing rough-in, HVAC hydronic piping, and industrial pipe fabrication where NPT thread standards apply.

Key Features

• 1-1/4-inch NPT tapered pipe thread form for pressure-rated connections
• Sized for nominal 1-1/4-inch pipe thread applications
• Suitable for hand tapping or machine tapping operations
• Appropriate for use on ferrous and non-ferrous base materials
• Sold individually — one tap per unit

Compatibility

Designed as an OEM-style replacement tap for 1-1/4-inch NPT internal threading applications in standard pipe fittings and ported components conforming to NPT thread specifications.

Installation Notes

Pipe taps of this size should be installed by licensed plumbers or pipefitters familiar with NPT thread standards and proper tapping procedures. Use the correct tap drill size for a 1-1/4-inch NPT thread before tapping, and apply cutting fluid throughout the operation to extend tap life and produce clean thread form. Always secure the workpiece firmly before tapping. Follow applicable code requirements, including IPC or IFGC provisions, when threading components for gas or pressurized fluid service.

Technical Specifications

• Thread Type: NPT (National Pipe Taper)
• Tap Size: 1-1/4 inches
• UPC: 042526019081
• Sold As: Each

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR1908ZR