Midland Industries 620212 Worm Gear Clamp 11-3/4 in

Product Description

The MIDLAND INDUSTRIES 620212 is a worm gear hose clamp from the 620 Series, designed for secure hose and tube connections in plumbing, HVAC, and general industrial applications. The clamp features a stainless steel band and housing with a stainless steel screw, providing corrosion resistance in wet or outdoor environments. It accommodates a nominal diameter of 11-3/4 inches with a minimum clamp diameter of 11-3/4 inches and a maximum clamp diameter of 13-3/4 inches. The 1/2-inch-wide band is driven by a single 5/16-inch bolt. This clamp meets SAE 212 standards and is suited for trade professionals handling large-diameter hose and duct connections.

The 620212 is used in residential and commercial applications wherever a large-diameter worm-drive clamp is required. Typical uses include securing flexible duct, large hoses, and piping connections in HVAC, plumbing, and general mechanical systems. The stainless steel construction makes it appropriate for installations exposed to moisture, chemicals, or outdoor conditions. It is commonly installed by HVAC technicians, plumbers, and mechanical contractors during new construction or service work.

Key Features

• Stainless steel band, housing, and screw for corrosion resistance
• 11-3/4 inch minimum to 13-3/4 inch maximum clamp diameter range
• 1/2-inch-wide band for broad clamping surface
• Single 5/16-inch drive bolt for easy tightening with standard tools
• Meets SAE 212 specification
• Worm-drive mechanism allows precise diameter adjustment

Compatibility

Designed as a general-purpose worm-drive clamp suitable for large-diameter hose, flexible duct, and tubing connections in plumbing, HVAC, and industrial piping applications.

Installation Notes

Installation requires a standard flat-blade or hex driver to tighten the worm-drive screw. Ensure all fluid flow or airflow is shut off and system pressure is relieved before installing or repositioning the clamp. Do not overtighten, as excessive force can damage hose or duct material. Follow applicable mechanical codes for the specific system type being serviced.