Parker 97HC-6 Worm Gear Clamp 0.38-0.87 Inch Stainless Steel

Product Description

The PARKER 97HC-6 is a worm drive hose clamp designed for secure, leak-resistant connections on hoses and tubing in HVAC, plumbing, and general mechanical applications. The clamp features a stainless steel band paired with a brass housing, delivering corrosion resistance suited to both wet and dry service environments. It adjusts across a diameter range of 0.38 inches minimum to 0.87 inches maximum, making it a compact, tight-range clamp for small-bore hose work. The 0.5-inch-wide band distributes clamping force evenly, reducing the risk of hose deformation. Actuation is via a hex drive, compatible with standard hex drivers or a nut driver. The clamp meets RoHS standards, confirming compliance with restricted hazardous substance requirements. Installers in HVAC, plumbing, and light industrial trades specify this clamp where a reliable, tool-driven connection is required on small-diameter flexible hose.

The 97HC-6 is suited for small-diameter hose connections found in residential and light commercial HVAC systems, hydronic plumbing lines, condensate drain tubing, and similar low-to-medium pressure piping applications. Its compact diameter range targets connections where standard mid-range clamps would over-span the fitting. The hex drive style allows consistent torque application with a nut driver or hex socket, making it practical in tight equipment access areas where a slotted screwdriver is difficult to use.

Key Features

• Stainless steel band for corrosion resistance in wet service conditions
• Brass housing provides additional corrosion resistance over standard zinc housings
• Diameter range: 0.38 inches minimum to 0.87 inches maximum
• 0.5-inch band width for even clamping force distribution on small-bore hose
• Hex drive actuation compatible with standard nut drivers and hex sockets
• RoHS compliant construction

Compatibility

Designed as a general-purpose worm drive hose clamp for flexible hose and tubing with an outside diameter falling between 0.38 inches and 0.87 inches, typical of small-bore condensate, coolant, and fluid-transfer hose connections.

Installation Notes

Installation is performed by HVAC technicians, plumbers, or pipefitters as part of hose-to-fitting connections. Shut down and depressurize the system before removing or replacing any hose clamp. Seat the clamp at least one band-width back from the end of the fitting before tightening. Use a properly sized nut driver or hex socket on the 0.31-inch hex drive to apply even torque; do not over-tighten, as excessive force can cut through the hose wall or collapse thin-wall tubing.