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Expansion Plug 40mm c/w Wingnut is a robust, corrosion‑resistant sealing solution designed for 40mm pool pressure pipes and similar lines. Crafted with a stainless steel body and a durable nylon wing nut, this plug delivers reliable performance in damp environments and under repeated use.
How it works
Insert the plug into the pipe until it sits firmly in place.
Tighten the wingnut to expand the rubber sealing. The rubber pressurizes against the interior, creating a secure, leak‑free seal.
For a tailored fit, the hub and seal can be sanded down to achieve a taper or reduced diameter using a grinder or disk sander.
Key features and benefits
40mm sizing provides a precise, reliable seal for standard pool pressure pipes.
Flexible rubber seal adapts to minor irregularities in the pipe interior for consistent sealing.
Stainless steel body offers corrosion resistance in wet environments, extending service life.
Nylon wing nut combines durability with smooth, fingertip tightening even when hands are wet.
Can be sanded or tapered to custom requirements, enabling a custom fit without replacing the plug.
Available in other sizes to match different pipe diameters and applications.
Customization and precise fit
One standout advantage of this expansion plug is its adaptability. If your installation calls for non‑standard tolerances or a gradual taper, you can sand the hub or taper the end with a grinder or disk sander. This makes it ideal for retrofit projects, improvised seals, or prototypes where off‑the‑shelf fittings aren’t perfect.
Ideal applications
Pool maintenance and repair tasks involving 40mm pressure lines.
Temporary sealing during testing, flushing, or line isolation in plumbing projects.
Workshop or field work where quick, reliable seals are needed with easy removal.
Usage tips
Ensure the pipe interior is clean and free of debris before insertion for maximum seating.
Do not overtighten the wing nut; tighten until the rubber seal visibly contacts the pipe interior and stops leaks.
If a taper is required, incrementally sand and test the fit in small steps to avoid over‑modification.
Inspect periodically during use for signs of wear or cracking in the rubber seal, especially after exposure to chemical cleaners or chlorinated water.
Specifications
Diameter: 40mm
Body: Stainless steel
Seal: Rubber
Wing Nut: Nylon
Other sizes available
Designed for reliability, adaptability, and long‑term use in pool and pipe work, the Expansion Plug 40mm c/w Wingnut is a practical choice when you need a secure, removable seal that can be customized to your exact requirements.
