Zsi UB3PA U-bolt Clamp Cushion 3 Inch Pipe Steel

Product Description

The ZSI UB3PA is a cushioned U-bolt pipe clamp designed to support and secure 3-inch nominal pipe in mechanical, plumbing, and HVAC piping systems. Constructed from steel with an electro-galvanized finish, this clamp resists corrosion in typical indoor and light industrial environments. The integrated cushion reduces vibration transmission and protects pipe coating or insulation from abrasion at the contact point. It accepts a 1/2-13 threaded rod for suspension or structural attachment and carries a rated load capacity of 2.26 pounds. At 4.55 inches in length, it is sized for standard 3-inch pipe OD fitment. Plumbers, pipefitters, and HVAC mechanics install this clamp as part of pipe support assemblies on new construction and retrofit projects.

This clamp is suited for residential and light commercial piping applications where a 3-inch nominal pipe requires supported suspension from threaded rod. Common installations include hydronic heating lines, domestic water supply runs, refrigerant suction lines, and condenser water piping routed through mechanical rooms or along structural framing. The cushion lining makes it appropriate for copper, steel, or plastic pipe where direct metal-to-metal contact should be avoided. It is packaged individually and sold as a single unit per order.

Key Features

• Sized for 3-inch nominal pipe with a body length of 4.55 inches
• Accepts standard 1/2-13 threaded rod for suspended pipe support assemblies
• Steel construction with electro-galvanized finish for corrosion resistance in indoor environments
• Integrated cushion reduces vibration transfer and protects pipe surface
• Rated load capacity of 2.26 pounds
• Maximum panel thickness of 1 inch accommodates standard structural attachment points

Compatibility

Designed as an OEM-style pipe support clamp for 3-inch nominal pipe suspended on 1/2-13 threaded rod in mechanical, plumbing, and HVAC piping systems.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, or HVAC mechanics following applicable IPC and IFGC pipe support spacing requirements. Shut off and depressurize the pipe system before adjusting or repositioning any clamp. Use appropriately rated threaded rod and hardware to match the full weight of the supported pipe, fluid, and insulation — do not rely solely on the clamp load rating for assembly design. Inspect the cushion for wear or compression set during routine maintenance intervals.