Bailey Products Drain Test Plug - 375mm
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Product Information
Full details
The Bailey Products 375mm Drain Test Plug is designed for professional plumbers and contractors who require a dependable, high-pressure seal for air or water testing of drainage and sewer lines. Its core benefit lies in its heavy-duty steel construction, which provides reliable expansion and a secure, leak-free seal within pipes; however, users should note that as a metal-heavy tool, it requires proper maintenance to prevent corrosion in damp, long-term storage conditions.
All features
| Model Part Number | 375mm |
|---|---|
| Brand | Bailey Products |
Extended Product Information
FAQs
Can this plug be used for both air and water testing?
Yes, the Bailey 375mm Drain Test Plug is designed to handle the pressures required for both air and water testing protocols.
Is a wrench required to tighten the wing nut?
The wing nuts are designed for manual tightening. If hand-tightening does not provide a seal, check that the pipe surface is not excessively dirty or damaged.
How do I store the plug to prevent rust?
Store the plug in a dry area. Wipe the steel surfaces down after use and ensure they are completely dry before placing them in a storage box.
Does this plug work on all pipe materials?
It is compatible with most standard drainage pipe materials, provided the internal diameter is 375mm and the surface is relatively smooth.
What should I do if the seal slips during testing?
Verify that the pipe is not lubricated with soap or grease. Clean both the pipe interior and the rubber plug surface with a dry cloth before re-installing.
Troubleshooting
The plug fails to hold pressure.
Check the pipe for debris or rough surfaces that may be compromising the rubber seal. Ensure the plug is seated square within the pipe.
Wing nut is difficult to turn.
Clean the central threads of grit or dried residue and apply a small amount of lubricant.
Rubber seal is showing signs of wear or cracking.
Replace the rubber seal ring if it is damaged, as a compromised seal will result in inaccurate test results.
Pros and Cons
Pros
- Constructed from high-durability steel for long service life
- Provides a secure and accurate seal for air or water testing
- Simple manual operation via high-torque steel wing nuts
- Professional-grade construction suitable for constant site use
Cons
- Heavier than nylon or plastic plug alternatives
- Metal components require cleaning to prevent surface oxidation
- Specific to 375mm pipe dimensions only
Setup, Compatibility & Care
To set up the plug, ensure the pipe interior is clean and free from debris or jagged concrete, as these can damage the rubber seal. Insert the plug into the pipe, ensuring it is positioned straight to avoid uneven expansion. Tighten the wing nut firmly by hand until the rubber has made full, secure contact with the pipe circumference.
Compatibility: This plug is specifically sized for pipes with a 375mm internal diameter. It is not designed to be used in pipes larger or smaller than this specification.
Care: After each use, wash the plug in clean water to remove sewage residue or grit. Dry the steel plates thoroughly before storage to prevent rust. Applying a light coat of silicone grease to the threads of the center bolt will keep the wing nut moving smoothly and extend the life of the tool.