Carpenter Paterson 126-4 Black Riser Clamp 4 Inch 750 Lb

Product Description

The CARPENTER PATERSON 126-4 is a 2-piece, 2-hole extension riser clamp designed for the support and steadying of vertical pipe risers in demanding mechanical systems. Constructed from carbon steel with a black finish, this clamp grips the pipe firmly and transmits load forces to the surrounding structure through the ears on each end. It carries a rated load capacity of 750 pounds and is built to meet ASME B31.1, MSS-SP-58 Type 8, AA-1192A Type 8, and BSPSS-BS3974 standards. Licensed plumbers and pipefitters working on commercial and industrial riser systems are the primary installers of this fitting.

This riser clamp is suited for 4-inch pipe in commercial, industrial, pharmaceutical, petrochemical, and hospital piping systems. When possible, the clamp should be positioned directly under a coupling, hub, or lugs welded to the pipe to maximize load transfer and structural integrity. Its 2-hole ear configuration allows secure attachment to structural members, making it a reliable choice in high-demand vertical riser applications.

Key Features

• 2-piece, 2-hole extension riser clamp design for secure vertical pipe support
• 750 pound load rating for use in heavy-duty commercial and industrial piping systems
• Carbon steel construction with black finish for durability
• Meets ASME B31.1, MSS-SP-58 Type 8, AA-1192A Type 8, and BSPSS-BS3974 standards
• Designed for placement under a coupling, hub, or welded lugs for optimal load transfer
• 1-year limited warranty included

Compatibility

Designed for use with 4-inch pipe in commercial, industrial, pharmaceutical, petrochemical, and hospital vertical riser piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical codes, including ASME B31.1 where required. Shut off and depressurize the pipe system before installing or repositioning the clamp. Where possible, position the clamp directly below a coupling, hub, or welded lugs to ensure proper load transfer to the building structure. Use appropriate fasteners through the ear holes to secure the clamp to a structural support member.

Technical Specifications

• Pipe Size: 4 inches
• Overall Length: 13.625 inches
• Load Rating: 750 pounds
• Clamp Material: Carbon Steel
• Finish: Black
• Type: 2-Piece, 2-Hole, Extension Riser
• Number of Bolts: 2
• Applicable Standards: ASME B31.1, MSS-SP-58 Type 8, AA-1192A Type 8, BSPSS-BS3974
• Application: Commercial, Industrial, Pharmaceutical, Petrochemical, Hospital
• Weight: 2.28 pounds
• Packaging Quantity: 15 per box
• Warranty: 1 Year Limited

Standard Information

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