Service Metal 3mcplhs.75 Half Coupling 3/4 in Class 3000

Product Description

The SERVICE METAL 3mcplhs.75 is a Class 3000 forged carbon steel half coupling designed for socket weld connections in high-pressure piping systems. Manufactured to ASME B16.11 and meeting ASTM A105/ASME SA105 material specifications, this fitting delivers the wall strength and pressure integrity required in industrial and mechanical piping applications. The half coupling configuration allows a branch connection to be welded directly to pipe or vessel walls. At 0.4 pounds and sized at 3/4 inch, it is compact and well-suited for tight installations where a full coupling is not required. Licensed pipefitters and welding professionals are the primary installers of this type of fitting.

This half coupling is used in industrial process piping, steam distribution, hydraulic systems, and high-pressure plumbing applications where socket weld connections are specified. The Class 3000 pressure rating makes it appropriate for Schedule 80 pipe systems. It is commonly found in refineries, power plants, commercial mechanical rooms, and similar environments where carbon steel socket weld fittings are called out on the piping isometric or specification sheet.

Key Features

• Class 3000 pressure rating suitable for high-pressure socket weld piping systems
• Forged carbon steel construction per ASTM A105/ASME SA105 for strength and durability
• Conforms to ASME B16.11 standard for forged fittings, socket welding and threaded
• Socket weld by socket weld end connection on both ends
• Extra heavy (XH) wall thickness designation
• Compact half coupling design for branch outlet or vessel nozzle applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/4 inch Class 3000 socket weld carbon steel piping systems conforming to ASME B16.11 requirements.

Installation Notes

Installation of socket weld fittings must be performed by a qualified welder or certified pipefitter in accordance with applicable welding codes such as ASME B31.1 or B31.3 depending on the service. De-energize and depressurize the piping system fully before cutting into any existing line. Pipe ends must be properly cleaned, deburred, and inserted to the correct socket depth before tack welding and final fillet weld passes. Do not apply pressure to the joint until the weld has been inspected and fully cooled.

Technical Specifications

• Size: 3/4 inch
• Pressure Rating: Class 3000
• End Connection: Socket Weld x Socket Weld
• Material: Carbon Steel
• Material Specification: ASTM A105/ASME SA105
• Applicable Standard: ASME B16.11
• Schedule: 80S
• Wall Thickness: Extra Heavy (XH)
• Process: Forged
• Fitting Type: Half Coupling, Straight
• Weight: 0.4 pounds

Standard Information

• Brand: SERVICE METAL
• Manufacturer Part Number: 3mcplhs.75