Reliable Pipeline Isolation Services & Equipment

A pipeline isolation joint is a component or assembly used to separate a section of pipeline so maintenance, repair, replacement, or modification work can be completed in a controlled area. In line stopping applications, isolation equipment temporarily blocks flow within the targeted section, allowing crews to work without shutting down the entire pipeline. The correct setup depends on pipe size, pressure, material, and the planned work.

An isolation blind is a solid barrier installed to positively separate a pipeline section from pressure or flow. It may be used as part of an isolation procedure when a section must remain securely separated during maintenance or repair. Unlike a temporary line stop that supports controlled work on a live system, a blind provides a physical closure at a connection point. Application requirements determine the appropriate isolation method.

Pipeline isolation work commonly uses line stop machines, folding or pivoting heads, actuators, housings, line stop flanges, completion plug setters, and compatible valves or fittings. Hot tapping equipment may also be used to create an access point on a pressurized line before a line stop is installed. The equipment selected must match the pipe diameter, material, pressure conditions, and isolation method.

Hot tapping creates a controlled opening in a pressurized pipeline while the line remains in operation. A tapping machine, adapter, cutter, and pilot drill are used with the appropriate connection and valve arrangement. Once the access point is established, crews can add a branch, prepare for line stopping, or perform other planned work. Proper equipment compatibility and operating procedures are essential for safe, reliable results.

Schallert Enterprises manufactures tapping machines for tap diameters ranging from ¾ inch to 72 inches. Its available machine line includes the TM100, TM200, TM250, TM300, TM400, and TM6120 models. Selecting the right machine requires consideration of the required tap size, connection details, cutter and pilot configuration, pipe material, and the conditions of the pressurized line.

Yes. Schallert Enterprises has the capability to manufacture tapping and line stopping equipment to fit exact customer needs. Custom discussions can address pipeline size, machine compatibility, the desired tapping or isolation configuration, and specialized application requirements. This is useful when a standard product does not suit an existing setup or when a project requires a purpose-built component for a specific operating condition.

Diamond segment cutters are available for tapping into concrete-lined pipe. Schallert Enterprises also manufactures multi-tooth cutters with carbide or HSS tips for other material and application needs. Choosing a cutter should account for the pipe construction, wall characteristics, tap size, and tapping machine configuration. Proper cutter selection helps produce an efficient cut while managing material buildup during the operation.

After the planned maintenance, repair, or modification work is finished, a completion plug is installed to seal the access point. Schallert Enterprises offers completion plug setters and plug housings to support this phase of the job. Its completion plug setter models cover different plug-size ranges, helping crews complete line stopping work without relying on a large tapping machine and tapping adapter.