Precision Brand 47821 Worm Gear Hose Clamp 2-9/16 to 3-1/2 in

Product Description

The PRECISION BRAND 47821 is a heavy-duty, three-piece worm gear hose clamp designed for high-load clamping applications across a range of industries. It features a 9/16-inch band width, which provides a greater sealing surface area compared to standard narrow-band clamps. The one-piece housing is free of spot welds, reducing the risk of stress fractures and corrosion at weld points. This clamp covers a clamping range of 2-9/16 inches to 3-1/2 inches, making it suitable for medium-to-large hose and tubing connections. Plumbers, HVAC technicians, automotive technicians, and industrial maintenance professionals are the primary installers.

This clamp is well suited for use in automotive cooling and intake systems, plumbing supply and drain connections, and heavy-duty industrial fluid transfer applications. The wide band design is particularly effective where vibration or pressure cycling could cause a narrow-band clamp to cut into or deform softer hose materials. It is sold in packs with a minimum order quantity of 10 pieces, making it practical for service fleets and shop stock.

Key Features

• 9/16-inch band width delivers a larger sealing area than standard narrow-band clamps
• One-piece spot-weld-free housing resists stress cracking and corrosion
• Clamping range of 2-9/16 inches to 3-1/2 inches covers medium-to-large hose diameters
• Three-piece worm gear construction provides consistent, even clamping force
• Suitable for automotive, plumbing, and heavy-duty industrial applications

Compatibility

Designed as a heavy-duty worm gear hose clamp for use on hoses and tubing with an outside diameter between 2-9/16 inches and 3-1/2 inches in automotive, plumbing, and industrial applications.

Installation Notes

Installation is performed with a standard flat-blade or hex screwdriver or nut driver. Before installing, ensure the hose or fitting is de-pressurized and any fluid supply is shut off. Position the clamp over the hose and seat it fully past the bead or fitting barb before tightening the worm gear screw. Do not overtighten, as excessive torque can deform the hose or damage the band.

Technical Specifications

• Clamping Range: 2-9/16 inches to 3-1/2 inches
• Band Width: 9/16 inches
• Construction: 3-piece worm gear
• Housing: One-piece, spot-weld-free
• Weight: 0.07 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 10

Standard Information

• Brand: PRECISION BRAND
• Manufacturer Part Number: 47821