Oetiker 10500325-100 1-ear Clamp 1/2 Inch Carbon Steel

Product Description

The OETIKER 10500325-100 is a 1-ear stepless clamp designed for secure, permanent connections on hose and tubing assemblies. The single-ear design is crimped with a pincer tool, collapsing the ear uniformly to create a 360-degree grip around the hose. At 1/2 inch nominal size, the clamp suits small-diameter hose applications common in HVAC, plumbing, and fluid-handling systems. The carbon steel body with zinc-plated head coating provides corrosion resistance suited to typical indoor and light-duty outdoor service environments. Band width is 7.00 mm and band thickness is 0.75 mm, keeping the profile compact where space is limited.

This clamp is used wherever a reliable, tamper-evident hose connection is required. Common applications include refrigerant tubing insulation jacketing, PEX and flexible tubing connections in plumbing, coolant hose assemblies, and low-pressure pneumatic or fluid lines. The 1/2 inch nominal size and clamping range of 11.40 mm to 13.30 mm make it suitable for residential and light commercial systems. It is typically installed by HVAC technicians, plumbers, and mechanical contractors during assembly or repair work.

Key Features

• 1-ear stepless design provides uniform 360-degree clamping force when crimped
• Nominal size: 1/2 inch with a clamping range of 11.40 mm to 13.30 mm
• Carbon steel construction with zinc-plated head coating for corrosion resistance
• Band width of 7.00 mm and thickness of 0.75 mm for a low-profile fit
• Permanent, tamper-evident connection once crimped — not reusable
• Inner ear width of 6.00 mm (0.2360 inches) for standard pincer tool engagement

Compatibility

Designed as an OEM-style replacement or new-installation clamp for 1/2 inch nominal hose and tubing applications in HVAC, plumbing, and fluid-handling assemblies where a 1-ear stepless clamp is specified.

Installation Notes

Installation requires a dedicated ear-clamp pincer or crimping tool sized for 1-ear stepless clamps. Shut off fluid or refrigerant flow and relieve system pressure before replacing any hose connection. Seat the clamp ear squarely in the pincer jaws and crimp in a single smooth action to avoid distorting the ear. Once crimped, the clamp is permanent and must be cut off for removal — do not attempt to reuse.