Asc Engineered Solutions 308302009 Flanged Union 4 in Class 125

Product Description

The ASC ENGINEERED SOLUTIONS 308302009 is a 4-inch Class 125 black cast iron flanged union designed for joining and disconnecting piping sections in industrial and commercial systems. The flanged connection style allows easy disassembly without cutting pipe, making it a practical choice for maintenance-intensive installations. At 18 pounds, this union is built for heavy-duty service in systems where cast iron durability and a Class 125 pressure rating are required. Licensed plumbers and pipefitters are the typical installers on jobs where this fitting is specified.

This flanged union is suited for commercial and industrial piping applications including water, drain, and low-pressure service lines. The 4-inch size fits main runs in larger-diameter systems found in mechanical rooms, plant piping, and municipal service connections. The Class 125 rating aligns with standard cast iron flanged fittings used in HVAC hydronic systems, water distribution, and related trade piping installations.

Key Features

• 4-inch nominal size for main-line piping applications
• Class 125 pressure rating compatible with standard cast iron flanged systems
• Black cast iron construction for durability in commercial and industrial service
• Flanged connection allows disassembly and reassembly without cutting pipe
• Domestically sourced fitting

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 4-inch Class 125 flanged cast iron piping systems. Compatible with standard ASME Class 125 flanged pipe and fittings of the same nominal size.

Installation Notes

Installation is performed by licensed plumbers or pipefitters in accordance with applicable plumbing and mechanical codes, including IPC and ANSI standards. Shut off and depressurize the system completely before disassembling or installing any flanged union. Use appropriate gaskets rated for the service conditions and torque flange bolts in a cross pattern to ensure even seating. Do not overtighten or use the union to force misaligned pipe into position.

Technical Specifications

• Fitting Size: 4 inches
• Pressure Class: 125 lbs
• Connection Type: Flanged
• Fitting Material: Black Cast Iron
• Item Weight: 18 pounds
• Origin: Domestic

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 308302009