Oetiker 15500037-100 1-ear Clamp 2.25 Inch Stainless

Product Description

The OETIKER 15500037-100 is a 1-ear stepless clamp designed for secure, permanent hose and tubing connections in plumbing, HVAC, and fluid-handling applications. The clamp features a 7 mm band width and 0.6 mm wall thickness, fabricated from stainless steel for corrosion resistance in wet or chemically active environments. It cinches down through a single ear that is crimped or pinched with the appropriate tool, creating a 360-degree uniform seal with no protruding hardware. Licensed plumbers, HVAC technicians, and automotive or industrial service pros routinely specify this style of clamp where vibration resistance and a low-profile finish are required.

The 15500037-100 is suited for residential and light commercial installations where a reliable, tamper-resistant connection is needed on flexible hose or tubing. Its clamping range of 54.40 mm to 57.50 mm targets tubing with a nominal outside diameter of approximately 2.25 inches. The clamp is commonly used on PEX, silicone, rubber, and reinforced hose assemblies in potable water, radiant heat, and HVAC refrigerant-line insulation applications.

Key Features

• 1-ear stepless design delivers uniform 360-degree clamping force when crimped
• Stainless steel construction resists corrosion in wet and chemically active service environments
• 7 mm band width and 0.6 mm thickness provide a low-profile, vibration-resistant hold
• Clamping range of 54.40 mm to 57.50 mm fits nominal 2.25-inch hose and tubing
• Ear inner width of 10.00 mm (0.394 inches) is compatible with standard pincer-style crimping tools
• Permanent, tamper-resistant connection reduces risk of loosening over service life

Compatibility

Designed as an OEM-style replacement or new-installation clamp for flexible hose and tubing with an outside diameter falling within the 54.40 mm to 57.50 mm clamping range, typical in plumbing, HVAC, and fluid-system assemblies.

Installation Notes

Installation requires a pincer-style or ear-crimping tool rated for stepless clamps of this band width — do not attempt to close the ear with pliers, as uneven force will compromise the seal. Ensure the hose or tubing is fully seated on the fitting barb before positioning the clamp over the ear and crimping. Shut off water supply or depressurize the fluid circuit before replacing any existing clamp. Follow applicable plumbing codes such as IPC or local jurisdiction requirements for connection methods on potable water systems.