Overview
The Dresser 5.563 OD 250W 400G 4-bolt coupling is an industrial-grade flexible pipe joining solution widely used across water distribution, gas transmission, and heavy industrial pipelines. This steel coupling leverages Dresser’s proven bolted sleeve design to accommodate pipe misalignment, thermal expansion, and vibration without sacrificing connection integrity. The 4-bolt configuration provides a secure mechanical connection suitable for both routine maintenance and new installations.
Key Features
- 5.563 inch outer diameter for standard plain-end pipe joining
- Steel construction rated for 250W 400G pressure and material specifications
- 4-bolt design enables quick field assembly and disassembly
- Flexible gasket technology accommodates pipe deflection and thermal movement
- Leak-proof seal for water, gas, and industrial fluid service
- 7-5/8 inch overall length for compact installation
Technical Specifications
- Outer Diameter (OD): 5.563 inches
- Overall Length: 7-5/8 inches
- Material: Steel
- Pressure Rating: 250W 400G
- Bolt Configuration: 4-bolt
- Connection Type: Plain end pipe sleeve coupling
- Gasket Type: Flexible (BUNA or equivalent)
- Primary Application Service: Water, gas, industrial
Typical Applications
- Water main repair and new installation
- Gas pipeline joining and pressure systems
- Industrial and municipal water distribution
- Connecting dissimilar pipe materials (steel, cast iron)
- Accommodating pipe misalignment in field conditions
- Vibration and thermal expansion absorption
Compatibility & Replacements
Compatible With
- Plain-end steel pipe (Schedule 40 and Schedule 80)
- Cast iron pipe (CI)
- PVC and polyethylene transition applications
- Industrial and municipal water systems
- Gas distribution networks
Replaces / Drop-In Replacement For
This Dresser 5.563 OD 250W 400G coupling is compatible with other Dresser Style 38 and equivalent 5.563 OD 4-bolt couplings. Verify exact model interchangeability with your system integrator or Dresser technical support before ordering.
Works With
- Standard wrench and bolt assembly tools
- Field-installed gasket replacement kits
- Dresser coupling repair and maintenance kits
- Water and gas utility system components












