Midland Industries 842300 Constant Torque Hose Clamp Ss

Product Description

The MIDLAND INDUSTRIES 842300 is a constant torque bolt-drive hose clamp constructed from 304 stainless steel. Constant torque clamps use a spring-loaded band design that continuously compensates for thermal expansion and contraction in hose and fitting assemblies, maintaining a consistent seal over time. This clamp accommodates a minimum inside diameter of 2-1/4 inches and a maximum inside diameter of 3-1/8 inches, making it suited to mid-range hose sizes common in fluid and air handling systems. The band is 0.028 inches thick and is driven by a 3/8 inch bolt rated to 130 inch-pounds torque. Installation is performed by plumbers, HVAC technicians, and industrial pipefitters working on hose assemblies that experience repeated temperature cycling.

This clamp is appropriate for residential and commercial applications where hose connections are subject to temperature variation, vibration, or pressure fluctuation. Constant torque designs are commonly specified in HVAC coolant lines, automotive and marine cooling circuits, industrial fluid transfer lines, and plumbing hose stub-outs. The 304 stainless steel construction provides corrosion resistance in wet or humid environments. The bolt-drive mechanism allows precise torque application with standard hand tools, making it practical for field installation on new construction and retrofit work alike.

Key Features

• Constant torque spring-loaded band maintains consistent clamp pressure through thermal cycles
• 304 stainless steel construction resists corrosion in wet and humid service environments
• Clamp range: 2-1/4 inches minimum to 3-1/8 inches maximum inside diameter
• 3/8 inch bolt drive rated to 130 inch-pounds torque for precise tightening
• Band thickness of 0.028 inches provides flexibility without sacrificing holding strength
• Bolt-drive design is compatible with standard hand tools and torque wrenches

Compatibility

Designed as an OEM-style replacement or upgrade clamp for mid-size hose assemblies in HVAC, plumbing, and fluid transfer applications requiring a constant torque bolt-drive clamp in the 2-1/4 inch to 3-1/8 inch diameter range.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or pipefitter. Depressurize and drain the hose assembly before removing any existing clamp. Use a calibrated torque wrench to tighten the 3/8 inch bolt to the specified 130 inch-pounds - do not exceed rated torque, as overtightening can damage the hose liner. Verify the clamp band is seated squarely on the hose bead before final tightening.