Redefining Precision Channel Sealing: High-Pressure, Thread-Free Metal Blind Sealing Technology

cross-drilled manufacturing holes created for internal fluid channels must be permanently sealed.
Blind sealing plugs utilize single-sided radial expansion to form a high-pressure, vibration-proof metal seal in plain bores without thread tapping—making them the ideal replacement for traditional threaded plugs and press-fit ball expanders.

Key Applications:

• Cross-drilled Hole Ends: Surface exit and entry points from milling internal fluid or air channels.
• Main Oil Gallery Ports: Dead ends of primary lubrication circuits in engines and transmissions.
• Valve Manifold Bypasses: Blind terminations of pilot lines and test ports in hydraulic manifolds.
• Thin-Walled Castings: Sealing bores in aluminum or magnesium parts susceptible to cracking or too thin for tapping.
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