Tapping Adapters for Pipeline Hot Tap Equipment

In hot tap drilling, the tapping attachment (or adapter) is the component that bridges the tapping machine to the pipeline fitting or valve. It holds the boring bar, cutter, and pilot drill in alignment while providing a pressure-tight seal, enabling the machine to bore into a live, pressurized pipeline without shutting down service.

Yes. Standard adapters are available for tap sizes from 4 to 54 inches and fit any tapping machine, while lightweight aluminum adapters (4 to 16 inches) are designed for tight or indoor jobs where forklift or crane access is limited. Both types use a standard ANSI 150# bolt pattern, with optional double drilling for MJ valves.

Standard tapping adapters are manufactured in sizes from 4 inches up to 54 inches to accommodate nearly any tap size and machine combination. Lightweight aluminum adapters are available from 4 inches to 16 inches for smaller taps requiring easier handling. Custom sizes and configurations can also be manufactured to match specific machine or valve requirements.

Tapping adapters use a standard ANSI 150# bolt pattern for compatibility with most valves and fittings. For projects involving mechanical joint (MJ) valves, adapters can be double drilled upon request, giving crews a single adapter that fits both standard ANSI and MJ bolt patterns without needing separate hardware.

Yes. Adapters can be custom manufactured to fit any tap size and virtually every tapping machine on the market, including specific boring bar diameters, pressure ratings, and bolt patterns. Technical consultation is available to help select or design an adapter that matches exact machine and pipeline fitting specifications.

Lightweight aluminum tapping adapters reduce overall setup weight, making them easier to handle and transport without a forklift or crane. This makes them ideal for confined spaces, indoor tapping situations, and jobs where heavy equipment access is restricted, while still maintaining compatibility with smaller tapping machines like the TM200 and TM250.