{"product_id":"inflatable-drain-bung-plug-natural-rubber-dn-50-75-100-110-pipe","title":"Inflatable Drain Bung Plug – Natural Rubber DN 50–110 Pipe","description":"\n\u003ch2\u003eNatural Rubber Inflatable Drain Bung – Fits DN 50 \/ 75 \/ 100 \/ 110 Pipes\u003c\/h2\u003e\n\u003cp\u003eKeep your plumbing projects under control with this heavy-duty \u003cstrong\u003einflatable drain air bag stop plug\u003c\/strong\u003e. Made from premium \u003cstrong\u003enatural rubber\u003c\/strong\u003e, this expandable bung creates a secure, airtight seal inside drain and waste pipes — ideal for pipe testing, blockage isolation, maintenance work, and leak checks. Simply insert, inflate, and seal. No tools required.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e Compatible with DN 50, DN 75, DN 100, and DN 110 diameter pipes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNatural Rubber Construction:\u003c\/strong\u003e Flexible, durable, and resistant to everyday wear — forms a reliable seal against the pipe wall\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick-Release Connection:\u003c\/strong\u003e Fast and easy inflate\/deflate via the quick-release valve\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets recognised safety and quality standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e Up to 100 kPa (rated below 850 kPa)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 × Inflatable Drain Air Bag Bung Plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the inside of the pipe is clean, smooth, and free of burrs or sharp edges before inserting the air bag.\u003c\/li\u003e\n  \u003cli\u003eInsert the deflated bung into the correct pipe type — always match the bung size to the pipe diameter.\u003c\/li\u003e\n  \u003cli\u003eInflate via the quick-release valve until a firm seal is achieved. Do not exceed the recommended pressure.\u003c\/li\u003e\n  \u003cli\u003eAvoid placing the bung at pipe joints where ridges or seams may affect the seal.\u003c\/li\u003e\n  \u003cli\u003eWhen work is complete, simply deflate and remove.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe pipe interior must be clean and smooth — debris or burrs can damage the rubber and reduce sealing effectiveness.\u003c\/li\u003e\n  \u003cli\u003eOnly use this bung in the corresponding pipe type and size it is designed for.\u003c\/li\u003e\n  \u003cli\u003eDo not position the bung at a pipe joint or coupling — uneven surfaces compromise the seal.\u003c\/li\u003e\n  \u003cli\u003eNever exceed the maximum rated pressure.\u003c\/li\u003e\n  \u003cli\u003eDue to manual measurement, please allow a tolerance of ±1–3 mm. Actual colour may vary slightly from images due to monitor settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0–10 \/ 0–12 \/ 0–25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/balashov-2500w-handheld-steam-cleaner-kitchen-car-home\"\u003eBALASHOV 2500W Handheld Steam Cleaner – Kitchen, Car \u0026amp; Home\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What pipe sizes does this inflatable drain bung plug fit?\u003c\/h4\u003e\n\u003cp\u003eA: This natural rubber inflatable bung is designed to fit DN 50, DN 75, DN 100, and DN 110 diameter drain and waste pipes. Always ensure you select the correct size for your specific pipe before inflating.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum working pressure for this drain air bag?\u003c\/h4\u003e\n\u003cp\u003eA: The recommended working pressure is 100 kPa, with a maximum rated pressure of less than 850 kPa. Always inflate gradually and never exceed the stated pressure limit to avoid damage to the bung or pipe.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this inflatable bung at a pipe joint or coupling?\u003c\/h4\u003e\n\u003cp\u003eA: No — it is not recommended to place the bung at a pipe joint or coupling. The raised ridge or seam at these points can prevent a proper airtight seal and may damage the rubber air bag. Always position the bung on a smooth, straight section of pipe.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is any special equipment needed to inflate the bung?\u003c\/h4\u003e\n\u003cp\u003eA: The bung features a quick-release valve connection, making it compatible with a standard hand pump or air compressor. No specialist tooling is required — simply connect, inflate to the working pressure, and the bung expands to seal the pipe.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What pipe sizes does this inflatable drain bung plug fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This natural rubber inflatable bung is designed to fit DN 50, DN 75, DN 100, and DN 110 diameter drain and waste pipes. Always ensure you select the correct size for your specific pipe before inflating.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum working pressure for this drain air bag?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The recommended working pressure is 100 kPa, with a maximum rated pressure of less than 850 kPa. Always inflate gradually and never exceed the stated pressure limit to avoid damage to the bung or pipe.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this inflatable bung at a pipe joint or coupling?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — it is not recommended to place the bung at a pipe joint or coupling. The raised ridge or seam at these points can prevent a proper airtight seal and may damage the rubber air bag. 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