QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
| Water Depth | 0~10m, or customzied |
| Air Pressure | 0.2, 0.15 MPA |
| Delivery Time | 2~3 weeks |
| Payment Terms | T/T |
| Diameter | 0.3~2.5m, or customized diameter |
| Length | 0.8m-4.8m, or customized length |
| Weight | 2.5, 4, 5, 10, 18, 25 kg |
| Supply Ability | 100pcs/per week |
| Working Pressure | 0.1~0.25Mpa |
| Packaging Details | papper/woden boxes, Pallet |
| Model Number | Pipe plug |
| Certification | SGS, BV, CCS, ABS, LR, BV. |
| Brand Name | DOOWIN MARINE |
| Place of Origin | China |
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Product Specification
| Water Depth | 0~10m, or customzied | Air Pressure | 0.2, 0.15 MPA |
| Delivery Time | 2~3 weeks | Payment Terms | T/T |
| Diameter | 0.3~2.5m, or customized diameter | Length | 0.8m-4.8m, or customized length |
| Weight | 2.5, 4, 5, 10, 18, 25 kg | Supply Ability | 100pcs/per week |
| Working Pressure | 0.1~0.25Mpa | Packaging Details | papper/woden boxes, Pallet |
| Model Number | Pipe plug | Certification | SGS, BV, CCS, ABS, LR, BV. |
| Brand Name | DOOWIN MARINE | Place of Origin | China |
| High Light | natural rubber pipe plug ，high pressure pipe plug ，municipal blocking plugs | ||
Commercial series inflatable pipe plugs are constructed with high-quality natural rubber, NBR, neoprene rubber, or other durable materials, reinforced with nylon layers for enhanced resistance to fuel, petrochemicals, and other caustic chemicals. Each plug comes equipped with rigging hardware, inflation ports, and a pressure relief valve.
These multi-size flow stoppers can accommodate a range of pipe diameters, making them versatile for various applications. Their lightweight design ensures easy installation and quick removal, ideal for commercial and light industrial work. When inflated with air or inert gas, they expand to completely block pipes for maintenance, construction, or other projects.
| Model | Pipe Diameter (mm) | Air Pressure (MPA) | Diameter (mm) | Length (mm) | Weight (kg) |
|---|---|---|---|---|---|
| DN150-300 | 150-300 | 0.2 | 135 | 500 | 2.5 |
| DN200-400 | 200-400 | 0.2 | 180 | 600 | 4 |
| DN200-500 | 200-500 | 0.2 | 180 | 750 | 5 |
| DN300-600 | 300-600 | 0.15 | 280 | 750 | 10 |
| DN400-800 | 400-800 | 0.15 | 380 | 900 | 18 |
| DN500-1000 | 500-1000 | 0.15 | 460 | 1050 | 25 |
Doowin Marine uses the most durable materials and rigorous testing to ensure the safety and longevity of our plugs. Our inflatable pipe plugs offer these key features and benefits:
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
3000000-5000000
Employee Number:
60~80
Ecer Certification：
Verified Supplier
Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb... Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb...
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