SANDWICH® Valves are designed for use with TDW Tapping Machines, TDW STOPPLE® Plugging Machines, and fittings with LOCK-O-RING® Flanges during hot tapping and plugging operations.

Tapping machines are used for making connections to pipelines, tanks, and plant piping without shutdown and are used to make hot taps in preparation for plugging machine applications. It is hydraulically operated and is used for making pipe and tank taps from 30" to 60".

Tapping machines are used for making connections to pipelines, tanks and plant piping without shutdown and are used to make hot taps in preparation for plugging machine applications. hey are hydraulically operated and are used for making pipe and tank taps from 12- to 42- inches (305 mm to 1067 mm).

Tapping machines are used for making connections to pipelines, tanks, and plant piping without shutdown and are used to make hot taps in preparation for plugging machine applications. The 936 Tapping Machine is hydraulically operated and is used for making pipe and tank taps from 12" to 36".

Model 760B Tapping Machines can be either air or hydraulically operated and are used for making pipe and tank taps from 3- to 16-inches.

Model 660B Tapping Machines can be either air or hydraulically operated and are used for making pipe and tank taps from 3" to 12".

The Model T-101B Drilling Machine is available in two versions: the standard T-101B with 18” of travel and the XL Model with 28” of travel.