Midland Industries 620080 Worm Gear Clamp 3-1/2 in Ss

Product Description

The MIDLAND INDUSTRIES 620080 is a worm gear hose clamp from the 620 Series, built for general-purpose clamping in plumbing, HVAC, and industrial piping applications. The clamp features a stainless steel band measuring 1/2 inch wide with a stainless steel housing and screw assembly. It accommodates a nominal size of 3-1/2 inches, with a minimum clamp diameter of 3-1/2 inches and a maximum clamp diameter of 5-1/2 inches. A single 5/16-inch bolt drives the worm gear mechanism, providing secure, even compression around hoses, ducts, or fittings. This clamp is rated SAE 80 and weighs 0.08 pounds, making it a lightweight yet durable fastening solution for trade and service work.

The 620080 is suited for residential and light commercial use wherever a reliable hose-to-fitting or duct-to-collar connection is required. Typical applications include HVAC ductwork connections, plumbing drain and supply line fittings, pool and spa equipment plumbing, and general fluid-handling assemblies. The all-stainless construction resists corrosion in wet or chemically exposed environments. Plumbers, HVAC technicians, and pool service professionals regularly use this clamp series for quick, field-adjustable connections that stay tight under vibration and temperature cycling.

Key Features

• Stainless steel band, housing, and screw for full corrosion resistance
• 1/2-inch-wide band distributes clamping force evenly across the hose surface
• Adjustable range: 3-1/2 inches minimum to 5-1/2 inches maximum clamp diameter
• Single 5/16-inch bolt worm drive for straightforward tightening with a standard screwdriver or nut driver
• SAE 80 rating for recognized performance classification
• Lightweight at 0.08 pounds - suitable for high-volume service work

Compatibility

Designed as a general-purpose worm gear clamp for hoses, ducts, and fittings with an outer diameter between 3-1/2 inches and 5-1/2 inches. Suitable for use in plumbing, HVAC, pool, and industrial piping assemblies requiring SAE-rated stainless steel clamps.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or pool service professionals. Ensure the hose or duct is fully seated on the fitting before positioning the clamp at least 1/4 inch from the end of the hose. Tighten the worm gear bolt with a flat-head screwdriver or 5/16-inch nut driver until snug - do not overtighten, as excessive torque can cut into hose material or distort the band. Inspect the connection after initial system pressurization and re-torque if needed.