Oetiker 15500054-100 1-ear Clamp 3.25 in Stainless Steel

Product Description

The OETIKER 15500054-100 is a 1-ear stepless clamp designed to create a permanent, vibration-resistant connection on hose and tubing assemblies. The single-ear design is crimped with a pincer tool, collapsing the ear and locking the clamp at a fixed diameter. At a nominal size of 3.25 inches with a clamping range of 79.90 mm to 83.00 mm, this clamp suits medium-to-large diameter hose ends. The 7 mm band width and 0.6 mm wall thickness deliver consistent radial force without damaging soft hose materials. Plumbers, HVAC technicians, and automotive-fluid specialists install these clamps where screw-type or spring clamps are not acceptable.

This clamp is used in residential and light commercial applications where a tamper-resistant, single-use seal is required. Typical installations include PEX tubing connections, coolant hoses, low-pressure pneumatic lines, and drain or vent hose terminations. The stainless steel construction makes it suitable for wet or corrosive environments such as under-slab plumbing chases, crawlspaces, and mechanical rooms. It is sold in a minimum order quantity of 5 units.

Key Features

• Single-ear stepless design creates a permanent, uniform radial seal when crimped
• Nominal size 3.25 inches with clamping range of 79.90 mm to 83.00 mm
• 7 mm band width provides broad contact area for consistent clamping force
• 0.6 mm band thickness balances strength and formability
• Stainless steel construction resists corrosion in wet and damp environments
• Ear inner width of 0.394 inches (10.00 mm) compatible with standard pincer tooling

Compatibility

Designed as an OEM-style replacement or new-installation clamp for medium-diameter hose and tubing assemblies requiring a permanent stepless crimp connection.

Installation Notes

Installation requires a dedicated ear-clamp pincer or pincers tool sized for the ear profile — do not attempt to close the ear with pliers, as uneven force will compromise the seal. Verify the hose or tubing is fully seated on the fitting barb before crimping. Follow applicable plumbing codes such as the IPC or IFGC when installing on potable water or gas-adjacent assemblies. Once crimped, the clamp is a single-use component and must be cut off and replaced if the connection is disturbed.