Dresser Steel 250W 400G 4-Bolt Coupling 5.563 OD

The Dresser Steel 250W 400G 4-Bolt Coupling is engineered to provide a robust and reliable connection for pipes with an outside diameter (OD) of 5.563 inches. This coupling is part of Dresser’s Style 38 series, renowned for its durability and versatility in various piping applications.

Key Features

• Material Construction: The coupling features a middle ring constructed from ASTM A513, ASTM A635, or ASME SA675 GR60 steel, ensuring high strength and resilience. ([dresserutility.com](https://dresserutility.com/wp-content/uploads/38.STEEL.Submtl.DPS.2021.pdf?utm_source=openai))
• Follower Design: Equipped with followers made from AISI C1012 or ASME SA36 steel, providing a secure and tight seal. ([dresserutility.com](https://dresserutility.com/wp-content/uploads/38.STEEL.Submtl.DPS.2021.pdf?utm_source=openai))
• Gasket Composition: Utilizes Grade 27 BUNA-S gaskets as standard, offering excellent sealing capabilities and resistance to various fluids. ([dresserutility.com](https://dresserutility.com/wp-content/uploads/38.STEEL.Submtl.DPS.2021.pdf?utm_source=openai))
• Coating: The coupling is coated with a grey epoxy both internally and externally, enhancing corrosion resistance and extending service life. ([dresserutility.com](https://dresserutility.com/wp-content/uploads/38.STEEL.Submtl.DPS.2021.pdf?utm_source=openai))

Specifications

• Pipe Size Compatibility: Designed for pipes with a nominal size of 5 inches and an OD of 5.563 inches. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))
• Middle Ring Dimensions: The middle ring has a thickness of 1/4 inch and a length of 5 inches, providing a sturdy connection. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))
• Bolt Configuration: Comes with four bolts, each measuring 5/8 inch in diameter and 8-1/4 inches in length, ensuring a secure and stable assembly. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))
• Overall Dimensions: The coupling has an overall diameter of 10-3/8 inches and a length of 8-1/2 inches, accommodating the specified pipe size effectively. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))
• Working Pressure: Rated for a working pressure of 1,205 psi, suitable for high-pressure applications. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))
• Approximate Weight: Weighs approximately 23.5 pounds, facilitating ease of handling and installation. ([dresserutility.com](https://dresserutility.com/kb2025/wp-content/uploads/DUS-Pipe-Joining-Water-Products.pdf?utm_source=openai))

Applications

The Dresser Steel 250W 400G 4-Bolt Coupling is ideal for joining plain-end pipes in various industries, including water and wastewater, oil and gas, and industrial piping systems. Its design allows for limited expansion and contraction, dampens vibration to reduce pipe fatigue, and accommodates slight misalignments, making it a versatile solution for maintaining pipeline integrity.

This coupling’s robust construction and high-pressure rating make it a reliable choice for demanding applications where secure and leak-proof connections are essential.