Products Description

Stainless steel scupper plug, also known as marine deck drain plug and expansion scupper plug, is a core sealing accessory for ship drainage systems. The product adopts a split structural design of stainless steel main body + elastic rubber expansion sleeve. Through manual tightening adjustment, the rubber sleeve expands to fit the inner wall of the drainage hole tightly, realizing full sealing and fixing.
Our scupper plugs cover standard models of IMPA 232481-232487, with complete size specifications, suitable for drainage holes of different calibers. The stainless steel plate resists seawater corrosion, oxidation and high temperature, and the customized rubber sleeve resists oil, water, ultraviolet and aging. The product features reusable performance, convenient disassembly and assembly, no damage to the original drainage hole, and can adapt to harsh working environments such as high salt fog, high humidity and alternating cold and heat at sea. It can meet the long-term stable use requirements of civilian yachts, commercial ships, engineering vessels and offshore facilities.
Product Parameter (specification)
|
Item |
Technical Specification |
|
Product Model |
IMPA 232481 / 232482 / 232483 / 232484 / 232485 / 232486 / 232487 / 232488 |
|
Main Material |
316/304 Stainless Steel (optional), anti-rust and anti-corrosion |
|
Sealing Material |
NBR oil-resistant rubber |
|
Applicable Aperture Range |
2" to 8" |
Product feature


Product application
With excellent corrosion resistance, stable sealing performance and simple operation, it is a standard essential accessory for yachts, cargo ships, chemical vessels, offshore platforms and marine engineering equipment, fully compliant with IMPA store guide specifications.
FAQ
Q: What is the difference between 304 and 316 stainless steel scupper plugs? How to choose?
A: 304 stainless steel is cost-effective, with basic anti-corrosion performance, suitable for inland waterway ships, freshwater equipment and short-term marine use. 316 stainless steel has stronger salt fog corrosion resistance and oxidation resistance, suitable for long-term offshore operation, ocean-going ships and high-standard marine engineering equipment.
Q: Can the scupper plug be reused? How to maintain it?
A: This product is designed for repeated use. After each use, clean the surface seawater, oil stain and dust with clean water, dry and store in a dry and ventilated environment. Avoid long-term extrusion and sunlight exposure of the rubber gasket. Regularly check the elasticity of the rubber sleeve, and replace the gasket in time if it is aging, deformed or damaged to ensure sealing effect.
Q: How to confirm the matching model and size?
A: Customers can measure the inner diameter of the ship deck scupper hole, and select the corresponding IMPA model according to the aperture range.
Q: Will the plug fall off or leak during use?
A: No. The product adopts expansion locking structure. After tightening the handle, the rubber sleeve closely fits the hole wall to form a friction locking force and all-round sealing. It can resist the impact of conventional water pressure and wave vibration, and will not fall off or leak.
Q: How long is the product service life?
A: Under normal use and regular maintenance, the service life of 304 stainless steel main body is more than 3 years, and 316 stainless steel main body can be used for 5-8 years in marine environment. The rubber gasket is a vulnerable part, and it is recommended to replace it every 1-2 years to maintain the best sealing performance.
Hot Tags: scupper plug stainless steel type, China scupper plug stainless steel type manufacturers, suppliers, factory



