3" Inch 76mm Profusion 304 Stainless Steel V-Band Clamp Kit M/F Quick Release

Profusion V-Band Kits are hugely popular over the traditional bolt flanges and slip joint connectors as they offer a gasket free seal. They work extremely well in high heat and stressed conditions. Profusion V-Bands Kits offer a unique Male/Female flange to ensure a suitable placement of the two. The Quick Release function makes swapping parts swiftly and easy. V-Band Flanges are CNC machined for accuracy and made from 304 Stainless Steel, can be used for Turbos, Wastegates, blow off Valves, De-Cat sections and other exhaust system applications. All our V-Bands are designed for your pipe to slip inside the flange and to be welded in place, please check the sizes in description.

Please Note:

Our V-Bands are supplied with a metal locking nut. If you plan to remove the clamp frequently or use it during mock-up, we strongly recommend replacing the locking nut with a standard (non-locking) nut to avoid thread wear and ease disassembly.

Important Installation Advice:

Hand-Tighten Only: Do not use an impact driver or any power tools. The clamp must only be hand-tightened using a spanner or socket. Using power tools can damage the threads or distort the clamp body.

Do Not Overtighten: The clamp does not need to be extremely tight. Once properly aligned and seated, light tension is sufficient. During operation, the clamp will naturally expand due to heat, further securing the seal. Over-tightening before use can cause thread damage or crack the clamp ring.

Proper Alignment Is Key: Ensure both flanges are fully and evenly seated before tightening the clamp. Misalignment can lead to leaks, distortion, or a poor seal.

Avoid Cross-Threading: Always start the nut by hand. Cross-threading is a common mistake, especially in tight spaces, and can ruin the clamp or bolt.

Use Anti-Seize Compound: Apply a small amount of anti-seize on the clamp bolt threads. This helps prevent galling and makes future removal easier, especially after high-heat exposure.

Check After Heat Cycles: After the first full heat cycle, it’s good practice to recheck the clamp. Heat expansion and contraction can slightly shift the assembly. Just ensure it’s snug — no need to retighten heavily.

Do Not Force It Closed: If the clamp does not close easily, double-check flange alignment. Forcing it shut may apply uneven pressure and reduce the lifespan of the clamp.

Removing the Locking Nut:

If you have used the supplied metal locking nut, please be aware it must be heated to a red-hot state before removal. This releases the locking tabs inside. Attempting to remove it cold can seize the threads or damage the clamp bolt. Always use caution and heat the nut thoroughly before disassembly.