Multi-Pipe Diameter Universal Reducer Airbag | Inflatable Pipeline Blocking Rubber Plug

Multi-Pipe Diameter Universal Reducer Airbag | Inflatable Pipeline Blocking Rubber Plug

Name: Multi-Pipe Diameter Universal Reducer Airbag | Inflatable Pipeline Blocking Rubber Plug
Brand: DALIAN YINGYU
SKU: 00247
Availability: InStock
Rating: 5 (1 reviews)

Item No.: Reducing Diameter Pipeline Blocking Airbag

Premium variable diameter pipe blocking airbag designed for inspections and leak tests. Fits 150-1000mm pipes with integrated vulcanization for superior sealing. Samples fully available for pressure verification. Inquire now for factory quotes!

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Description Specifications FAQ About us

Description

Product Information

	Name	Multi-pipe Diameter Universal Reducer Airbag & Pipe Blocking Plug/High Pressure Reducing Plugging Airbag/High Pressure Variable Diameter Pipe Plug Sealing Airbag/Reducing Diameter Pipeline Blocking Airbag
	Processing Service	Moulding
	Material	Rubber Materials
	Size	150300,200400,200500,300600,400800,5001000mm
	Shape	Cylindricity
	Color	Black
	Type	With Bypass Plug,Without Bypass Plug
	Feature	Suitable For a Wide Range Of Pipe Shapes
	Application	Pipe Blocking,Sealing Sewers,Leak Test,Stop Flow,Repair,Maintenance
	Logo	Customized Logo Availabled
	Sample	Available

Multi-pipe diameter universal reducer airbag and high pressure variable diameter pipe plug for pipeline sealing and testing.

The variable diameter pipe blocking airbag, also known as a pipe blocking airbag, water blocking airbag, or inflatable pipe plug, is an advanced tool for pipe blocking. Its main feature is that a single specification of the blocking airbag can be used for blocking operations in pipes of different diameters.
Made from rubber and fabric materials, these high polymer synthetic materials are formed into various specifications and shapes through a high-temperature vulcanization process. The selection of these materials ensures the flexibility and wear resistance of the airbag, allowing it to withstand high pressures and maintain long-term airtightness.
The working principle of the variable diameter pipe blocking airbag is to inflate it to expand. When the air pressure inside the airbag reaches the specified requirements, the airbag fills the entire cross-section of the pipe, using the friction between the airbag wall and the pipe to block the flow of water or air, thereby achieving the goal of no water seepage in the targeted pipe section.
The variable diameter pipe blocking airbag is widely used in various fields such as urban water supply and drainage system maintenance, industrial pipeline repairs, underwater operation protection, and fire emergency rescue. For example, in tasks such as drainage pipe maintenance, water blocking tests, leak detection, and pipe replacement or valve installation, the variable diameter pipe blocking airbag can play a significant role.
• Applicable Pipe Diameters: Perfectly fits multi-size pipelines from DN150mm to DN1000mm.
• Manufacturing Process: 100% integrated high-temperature vulcanization with multi-layer high-tensile fabric cords.
• Working Pressure & Safety: Precision-engineered to maintain stable air pressure inflation during sewer leak testing and pipeline blocking.
• Global Interchangeability: Engineering-grade performance suitable for municipal, industrial, and emergency pipeline sealing infrastructure.
Product Features:
* Suitable for pipes of varying diameters.
* Provides a tight seal with excellent water blocking capabilities.
* High air pressure and high friction coefficient.
* Easy to fold, transport, and carry.

Sewer & Pipeline Blocking Airbag Applications

Construction requirement
*	Do not use beyond the pressure limit.
*	Do not approach during inflation.
*	Do not exceed 0.05 MPa when pressurizing on flat ground.
*	Ensure to use sturdy ropes to guide the airbag.
*	Ensure to clean out pipeline debris before placing the airbag.
*	Ensure to take precautions against toxic gases inside the pipeline.
*	Ensure to store in the shade at room temperature.

Our Pipeline Blocking Airbag Advantages

*	Versatile Design: The multi-pipe diameter universal reducer airbag is crafted to accommodate a broad spectrum of pipe configurations, offering a flexible solution for a multitude of uses.
*	Durable Construction: Made from resilient rubber compounds, this item promises enduring service and dependability.
*	Personalization Features: Customers have the option to imprint a custom logo, facilitating unique branding and individualization.Adherence to global safety and quality standards.
*	Sizing Options: Offered in a selection of six sizes (150x300, 200x400, 200x500, 300x600, 400x800, and 500x1000mm), the product is designed to accommodate a variety of user requirements.

Download the MULTI-PIPE DIAMETER UNIVERSAL REDUCER AIRBAG CATALOG for the details.

Specifications

Reducer Inflatable Airbag Specification & Rubber Inflatable Airbag Types

Reducer Inflatable Airbag Specification
Specification	Applicable Pipe Diameter (MM)	Inflation Pressure (MPA)	Water Depth (≤Meters)	Initial Diameter (MM)	Length (MM)	Weight (KG)
DN150-300 Reducer Inflatable Airbag	150-300	0.2	10	135	500	2.5
DN200-400 Reducer Inflatable Airbag	200-400	0.2	10	180	600	4
DN200-500 Reducer Inflatable Airbag	200-500	0.2	10	180	750	5
DN300-600 Reducer Inflatable Airbag	300-600	0.15	8	280	750	10
DN400-800 Reducer Inflatable Airbag	400-800	0.15	8	380	900	18
DN500-1000 Reducer Inflatable Airbag	500-1000	0.15	8	460	1050	25

Rubber Inflatable Airbag Types
Concrete Culver Rubber Inflatable Airbag		Pipeline Water Blocking Rubber Airbag
Multi-pipe Diameter Universal Reducer Rubber Airbag		Self-Contained Hand Inflatable Ball Plug Rubber Airbag-Inflatable Pipe Plug Balloon Plug

FAQ

FAQ
1. What pipeline materials and environments are DLYY reducer inflatable airbags compatible with?
Our multi-pipe diameter universal reducer inflatable airbags are engineered for extreme versatility. They are fully compatible with municipal concrete culverts, PVC drainage lines, cast iron pipes, and steel sewer systems. Thanks to our premium anti-corrosion elastomer compounds, they operate flawlessly in municipal wastewater, industrial chemical runoff, and sub-zero underwater engineering environments.

2. What manufacturing process ensures the safety and high-pressure retention of your airbags?

Unlike low-end spliced or glued pipe plugs, DLYY airbags are manufactured using 100% integrated high-temperature vulcanization technology. We layer high-strength synthetic fabric cords inside a premium natural rubber matrix. This seamless structure eliminates weak points, guaranteeing an inflation pressure retention of 0.15–0.2 MPa and an exceptional anti-slip friction coefficient against wet pipe walls.

3. Can a single DLYY universal reducer airbag cover multiple pipe sizes?

Yes. That is the core commercial advantage of our reducer series. For instance, our DN150-300 model handles all pipelines within that range, and our DN500-1000 model covers large-diameter culverts. This "one-to-many" flexibility allows municipal contractors and plumbing MRO teams to reduce their equipment inventory costs by up to 50%.

4. What strict quality control and safety testing do your airbags undergo?

Safety is our top priority. Every single pipeline blocking rubber plug undergoes a rigorous 24-hour continuous high-pressure air-tightness test in our factory before packaging. We also conduct destructive pressure-burst testing on batch prototypes to ensure a minimum safety factor of 3x working pressure, protecting municipal workers from sudden pipeline blowouts.

5. What technical specifications are needed to get an exact quote and solution blueprint?

To provide you with an engineering-grade technical proposal and factory quote within 2 hours, please share:

• The exact range of your target pipeline diameters (e.g., DN200-500mm).

• The maximum backpressure or water depth the airbag needs to block (e.g., 8 meters or 10 meters).

• The medium flowing inside the pipe (standard sewage, clean water, or industrial chemicals).

• Your project schedule and total required quantities.

6. What is the standard lead time for customized and mass production orders?

Standard specifications shown in our catalog (such as DN150-300 or DN500-1000) are regularly kept in stock and ready for immediate shipping. For customized lengths, specialized high-pressure inflation valves, or multi-layer chemical-resistant compounds, prototype preparation takes 5–7 days, and mass factory production typically ranges from 12 to 20 days.

7. How do you package these heavy-duty rubber bladders for safe ocean shipping?

Due to the heavy weight of vulcanized rubber bladders (ranging from 2.5kg up to 25kg or more per unit), we roll and wrap them in heavy-duty moisture-proof plastic film. They are then packed inside reinforced, custom-sized export wooden crates or secured firmly on heavy-duty pallets with steel strapping to prevent shifting and friction damage during long-distance maritime transit.

8. What payment methods do you support for regular and international project procurement?

For standard bulk and project contract orders, we support T/T (Telegraphic Transfer), Irrevocable L/C at sight, and direct international settlement channels via VTB Bank (specifically optimized for seamless payment clearance from clients in Russia and the CIS region). For sample orders or express shipping deposits, PayPal and Western Union are also fully supported.

9. What are the warranty, traceabilty, and after-sales terms for DLYY airbags?

We stand behind our engineering quality. All pipeline blocking airbags come with a Mill Test Certificate (MTC) and a comprehensive quality tracing code for each batch. We provide a full replacement guarantee for any non-conforming items prior to field deployment, alongside lifetime remote technical support for pressure calculation and proper positioning setup.

Ready to Request a Technical Blueprint or Factory Catalog?

Need precise backpressure calculations, custom dimensions, or heavy-duty chemical-resistant bladders for your upcoming project? Contact our engineering support team right now for:

• Instant Quotation: Factory-direct competitive pricing provided within 2 hours.

• Technical Support: Customized dimension validation and pressure safety advice.

• Project Compliance: Complete MTC, data sheets, and SGS/BV testing arrangement.
[ Contact Us / Send Inquiry Now ]

About us

WHY DLYY

1. Advanced Technology

Precision Vulcanization & Molding: Equipped with heavy-duty hydraulic press vulcanizers and automated precision extrusion systems to guarantee uniform rubber-steel lamination and zero internal air pockets under extreme compressive loads.

2. R & D capabilities

Custom Formula Engineering: In-house rubber formulation lab optimizing natural rubber (NR) and chloroprene (CR) compounds. Custom design and finite element analysis (FEA) supported for non-standard bridge expansion needs.

3. Consistent Quality

Certified Quality Assurance: Operating strictly under ISO 9001 standards with 100% batch testing for shear modulus, compressive stiffness, and elastomer-to-steel bond strength before shipment.


4. Independent R&D In-House R&D & Custom Engineering: Equipped with raw material testing labs and compound formulation capabilities. We support custom sizing, rubber-steel lamination design, and structural drawing validation to meet exact project specifications.		5. Production equipment High-Precision Manufacturing: Utilizing heavy-duty hydraulic press vulcanizers and automated molding systems to ensure uniform density, high tensile strength, and zero internal air pockets for total load capacity.		6. Automated Warehouse Smart Warehousing & Logistics: Modern multi-tier storage facility ensuring systematic inventory management, fast order consolidation, and optimal protection for finished rubber bearing products prior to shipment.

7. Product Certification

Certified Quality Standards: Fully compliant with ISO 9001 quality management systems. Product test reports and third-party inspection certificates (including EN 1337-3, ASTM D4014, and SGS/BV) can be provided upon request.

VERIFIED CAPABILITIES

Service

Minor customization

Design-based customization

Sample-based customization

Full customization

Quality Control

Raw material tracebility indentification

Finished product inspection

State of the art testing instruments

On-site material inspection

Quality tracebility

Warranty available

Certificates

ISO9001

WARS

REACH and ROHS

WHAT CUSTOMER SAYS


Company in United States "Working with DLYY is a great expeirience"	Company in Australia "DLYY is good supplier in term of service and products"	Company in Europe "I'm looling forward to my next collaboration with DLYY"

Company in Germany "*DLYY at WindEnergy Hamburg 2026*"