Oetiker 16700082-100 Ear Clamp 3.3125 in Stainless Steel

Product Description

The OETIKER 16700082-100 is a single-ear clamp designed for secure, permanent hose and tubing connections in fluid and pneumatic systems. The ear-style design is cold-formed closed with a pincer tool, creating a uniform 360-degree radial force around the hose for a leak-free seal. With a nominal size of 3.3125 inches, a band width of 7 millimeters, and a wall thickness of 0.6 millimeters, this clamp is suited for medium to large diameter hose assemblies. Constructed from stainless steel, it resists corrosion in wet and chemically active environments. HVAC technicians, plumbers, and automotive service professionals routinely use this clamp type where vibration or repeated flexing would loosen a worm-drive or spring clamp.

This ear clamp is used in residential and light commercial HVAC systems, plumbing drain and supply assemblies, pool and spa equipment, and fluid-transfer hose assemblies requiring a tamper-evident, non-adjustable fastening method. The 3.3125-inch nominal size accommodates hose ODs common in larger-bore coolant, condensate, and process-fluid lines. It is appropriate for any application where a permanent, single-use closure is specified by the system manufacturer or installation code.

Key Features

• Single-ear design provides uniform radial clamping force when closed with a standard pincer tool
• Nominal diameter of 3.3125 inches suits medium to large bore hose and tubing assemblies
• 7 mm band width distributes clamping load across the hose surface, reducing the risk of hose deformation
• 0.6 mm band thickness balances strength and formability for consistent closure
• Stainless steel construction resists corrosion in wet, outdoor, and chemically active service environments
• Permanent, non-adjustable closure creates a tamper-evident connection for quality-critical assemblies

Compatibility

Designed as an OEM-style replacement or new-installation ear clamp for hose and tubing assemblies requiring a 3.3125-inch nominal single-ear clamp in HVAC, plumbing, pool, and fluid-transfer applications.

Installation Notes

Installation requires a dedicated ear-clamp pincer or pince-outil tool rated for the clamp diameter. Position the clamp over the hose before sliding the hose onto the fitting, as the closed clamp cannot be repositioned after forming. Shut off all fluid flow and relieve system pressure before replacing an existing clamp. Single-ear clamps are a permanent fastening method and cannot be reopened or reused once closed.