Description
The steel drain test plug is a heavy-duty pipe stopper for temporarily sealing drainage pipework during testing, repair, maintenance and installation work. This 6 inch drain plug is commonly used with 150mm to 160mm drainage pipework, making it suitable for larger underground drainage systems.
The expanding rubber seal compresses when the centre screw is tightened. This helps create a firm seal inside the pipe. As a result, the plug can be used to temporarily blank off a pipe end during low-pressure air or water testing.
This product is ideal for groundworkers, drainage installers, builders and maintenance teams who need a strong reusable stopper for site use. It is also useful when checking drainage systems before backfilling, handover or repair work.
Steel Drain Test Plug for 6 Inch Pipework
This steel drain test plug is designed for 6 inch nominal drainage pipe sizes. In underground drainage, this normally relates to 150mm to 160mm pipework, depending on the internal diameter of the pipe being tested.
Before use, always check the pipe internal diameter and condition. The plug must sit correctly inside the pipe. Also, the seal should be clean and free from damage before tightening.
- 6 inch steel drain test plug pipe stopper
- Commonly used with 150mm to 160mm drainage pipework
- Expanding rubber seal for temporary pipe blanking
- Steel plates for strength and durability
- Useful for low-pressure air and water testing
- Suitable for underground drainage and sewer testing work
- Reusable site tool for trade and groundwork use
- Helps temporarily seal pipe ends during repair or inspection
Steel Drain Test Plug for Drainage Testing
The steel drain test plug can help isolate sections of pipework during drainage testing. It is commonly used when checking for leaks, testing a new pipe run or temporarily stopping a pipe during repair work.
To use the plug, insert it into the pipe to the correct depth. Then tighten the centre fitting until the rubber seal expands against the inside wall of the pipe. Do not overtighten the plug, as this may damage the seal or pipework.
Always follow site testing guidance and never exceed the maximum allowable back pressure for the plug. Drain testing should only be carried out by a competent person using suitable equipment.
Steel Drain Test Plug for Site and Trade Use
This steel drain test plug is a practical accessory for underground drainage jobs. It can be used during installation, inspection, maintenance and repair work where pipework needs to be temporarily sealed.
The steel construction gives the stopper a strong, durable body for site use. The rubber seal helps grip the pipe bore when tightened. In addition, the top fitting allows controlled tightening and removal after the test or temporary seal is complete.
This plug is not designed as a permanent drainage fitting. It should only be used as a temporary stopper, testing plug or blanking tool. Once testing or repair work is finished, remove the plug and complete the drainage system using the correct permanent fittings.
Compatible Underground Drainage Products
TWS stocks a wider range of underground drainage products for trade and site use. This includes 160mm drainage pipe, couplers, bends, branches, access fittings, adaptors, non-return valves, flexible connectors and testing accessories.
View all 160mm underground drainage products at TWS.
Shop underground drainage at TWS.
For manufacturer specification guidance on steel test plug sizing, see the Horobin steel test plug size table.
