Carpenter Paterson 126ct-4 Copper Plated Riser Clamp 4 Inch

Product Description

The CARPENTER PATERSON 126ct-4 is a 2-piece, 2-hole extension riser clamp designed to support uninsulated vertical piping in stationary installations. Finished in copper plating over carbon steel, it carries a rated load capacity of 390 pounds and fits 4-inch pipe. The clamp spans an overall length of 13.125 inches and secures with 2 bolts. It is not intended for rod-supported applications and is not suitable for systems where pipe movement will occur. Plumbers and pipefitters install this clamp in commercial, industrial, and institutional mechanical systems where vertical tubing requires a rigid, fixed support point.

The 126ct-4 is used across a wide range of vertical piping installations in commercial buildings, hospitals, pharmaceutical facilities, petrochemical plants, and industrial process piping. It is suited for uninsulated copper or similarly sized vertical tubing in systems governed by ASME B31.1 and MSS-SP-58 Type 8 standards. The 2-hole configuration allows secure attachment to structure or unistrut-style framing members. This clamp ships in packaging quantities of 15 per box, making it practical for larger mechanical contractor purchases.

Key Features

• Copper-plated carbon steel construction provides corrosion resistance suitable for exposed mechanical rooms and wet environments
• 390-pound load rating supports 4-inch uninsulated vertical tubing under static conditions
• 2-piece, 2-hole extension riser design allows straightforward field installation around existing pipe
• Overall length of 13.125 inches accommodates standard structural attachment points
• Complies with ASME B31.1, MSS-SP-58 Type 8, and AA-1192A Type 8 standards
• Sold in boxes of 15, reducing per-unit handling on multi-clamp jobs

Compatibility

Designed for use with 4-inch uninsulated vertical tubing in stationary piping systems. Suitable for commercial, industrial, pharmaceutical, petrochemical, and hospital applications where pipe movement will not occur. Not designed for rod-supported configurations.

Installation Notes

Licensed plumbers and pipefitters typically install riser clamps as part of vertical pipe support systems governed by ASME B31.1 and local mechanical codes. Shut off and depressurize the piping system before installing or repositioning any pipe support hardware. Verify that the structural attachment point is rated to handle the combined pipe, fluid, and clamp load before tightening fasteners. Do not use this clamp in applications where thermal expansion or pipe movement is expected.

Technical Specifications

• Pipe Size: 4 inches
• Overall Length: 13.125 inches
• Clamp Type: 2-Piece, 2-Hole, Extension Riser
• Clamp Material: Carbon Steel
• Finish: Copper Plated
• Number of Bolts: 2
• Load Rating: 390 pounds
• Applicable Standards: ASME B31.1, MSS-SP-58 Type 8, AA-1192A Type 8
• Application: Commercial, Industrial, Pharmaceutical, Petrochemical, Hospital
• Packaging Quantity: 15 per box
• Weight: 2.04 pounds
• Warranty: 1 Year Limited

Standard Information

• Brand: CARPENTER PATERSON
• Manufacturer Part Number: 126ct-4