Dixon Valve Coupling HS40 Worm Gear Clamp

Product Description

The DIXON VALVE COUPLING HS40 is a worm gear clamp designed to secure hose connections in fluid transfer, HVAC, plumbing, and general industrial applications. Worm gear clamps work by tightening a slotted band around a hose or fitting via a threaded worm drive mechanism, creating a uniform radial seal that resists pressure and vibration. Weighing approximately 0.01 pounds, this is a lightweight, single-piece fastening device suited for installation by plumbers, HVAC technicians, and pipefitters in both residential and light commercial settings.

Worm gear clamps of this type are commonly used to secure coolant hoses, drain lines, flexible duct connections, and water supply fittings. The HS40 is appropriate for applications requiring a reliable, adjustable band clamp where the hose outside diameter falls within the clamp's rated range. Typical install scenarios include securing rubber or silicone hoses to barbed fittings, nipples, and spigots across a variety of piping systems.

Key Features

• Worm drive mechanism allows fine adjustment for a secure, uniform grip on hose connections
• Lightweight construction at 0.01 pounds for easy single-hand installation
• Compatible with rubber, silicone, and flexible hose materials common in HVAC and plumbing systems
• Single-piece band design simplifies installation without special tooling

Compatibility

Designed as an OEM-style replacement or new-installation worm gear clamp for use in residential and light commercial hose connection applications where an adjustable band clamp is required.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician using a flathead or hex-head screwdriver. Shut off fluid flow and depressurize the line before removing or installing any hose clamp. Position the clamp over the hose end before seating the hose on the fitting, then tighten the worm drive screw until the band is snug and the hose does not rotate. Avoid overtightening, which can damage flexible hose materials.