Inflatable Drain Pipe Plug – DN 50/75/100/110 Natural Rubber Bung
Inflatable Drain Pipe Plug – DN 50/75/100/110 Natural Rubber Bung
Natural Rubber Inflatable Drain Air Bag – DN 50 / 75 / 100 / 110 Pipe Stop Plug
Keep your plumbing jobs clean and hassle-free with this high-quality inflatable drain air bag bung. Designed for use in DN 50, 75, 100, and 110 pipes, this natural rubber stop plug expands firmly against the pipe wall to create a reliable, watertight seal — perfect for drain testing, pipe blockage, repairs, and maintenance work.
Key Features
- Material: Premium natural rubber — durable, flexible, and resistant to wear
- Compatible Pipe Sizes: DN 50 / DN 75 / DN 100 / DN 110
- Color: Black
- Working Pressure: Up to 100 kPa
- Package Includes: 1 × Inflatable Drain Air Bag Plug
- Made in Mainland China
How It Works
Simply insert the deflated rubber air bag into the pipe at the desired location, then inflate it using a standard valve pump. The bag expands evenly to fill the pipe interior, creating a solid, leak-proof block. Deflate to remove — quick, easy, and reusable.
Important Usage Notes
- The inside of the pipe must be clean and smooth — remove any burrs or debris before insertion to avoid damage to the bag and ensure a proper seal.
- Use only in the same type and rated pipe size as specified.
- Do not position the air bag at pipe joints — gaps at joints will compromise the seal.
- Do not exceed the rated working pressure to prevent over-inflation and damage.
Ideal Applications
- Drain and sewer pipe pressure testing
- Temporary pipe blockage during plumbing repairs
- Waterproofing inspections and leak testing
- Construction site pipe maintenance
Measurement Note
Due to manual measurement methods, please allow a tolerance of ±1–3 mm. Color may vary slightly from images depending on your screen's display settings.
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Frequently Asked Questions
Q: What pipe sizes is this inflatable drain plug compatible with?
A: This natural rubber inflatable drain air bag bung is designed to fit DN 50, DN 75, DN 100, and DN 110 diameter pipes. Always match the plug size to your specific pipe size for a secure seal.
Q: How do I inflate and remove the drain air bag plug?
A: Use a standard hand pump or compressor through the inflation valve to expand the rubber bag inside the pipe. Once your task is complete, simply release the air through the valve — the bag deflates and can be easily removed and reused.
Q: Can I use this rubber pipe plug at a pipe joint or connector?
A: No — it is not recommended to position the air bag at a pipe joint. Gaps present at joints can prevent a proper airtight seal. Always place the plug on a straight, smooth section of pipe for the best results.
Q: What is the maximum working pressure for this inflatable pipe bung?
A: The rated working pressure is 100 kPa. Do not exceed this pressure during use to maintain safety and product integrity.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.