Overview
The Victaulic Style 99 Roust-A-Bout Coupling is a heavy-duty flexible coupling for joining 3″ plain end and beveled end steel pipe and Victaulic plain end fittings. Style 99 Roust-A-Bout couplings are designed with heavy housings and grips to provide a strong component for joining plain and beveled end, including Schedule 80 steel pipe and Victaulic plain end fittings. With a maximum working pressure of 600 PSI, this ductile iron coupling is suitable for industrial piping, hydraulic lines, pneumatic systems, and demanding fluid transfer applications.
Key Features
- Heavy-duty gripping design: Pipe is secured together by heavy jaws, which are set into the housing. The jaws provide a much greater gripping area than single spot grips.
- Ductile iron construction: Housing: Ductile iron conforming to ASTM A-395, grade 65-45-15, and ASTM A-536, grade 65-45-12.
- Plain end connection: Compatible with Victaulic plain end fittings; Style 99 couplings are designed for use with plain end or beveled end pipe and Victaulic plain end fittings only.
- Torque-controlled assembly: Style 99 Roust-A-Bout couplings must be assembled with nuts tightened to full torque specifications.
- Preassembled gasket: Supplied with Grade E gasket included for immediate installation.
- Standard corrosion protection: All sizes are supplied with painted housings and plated nuts and bolts.
Technical Specifications
- Maximum Working Pressure: 600 PSI
- Nominal Pipe Size: 3 inches
- Connection Type: Plain End
- Material: Ductile Iron with orange enamel finish
- Housing Standards: ASTM A-395, grade 65-45-15, and ASTM A-536, grade 65-45-12
- Gasket Grade: E (elastomer)
- Maximum End Load: 5770 LB
- Bolt Torque Rating: 200 LB
- Outside Diameter: 3-1/2 inches
- Overall Length: 8-1/2 inches
- Fasteners: (2) 3/4 X 4-1/4 IN Bolt/Nut
- Standards Compliance: UL And ULC Listed
Typical Applications
- Industrial piping systems and fluid transfer lines
- Hydraulic and pneumatic distribution networks
- Municipal water and fire protection systems
- HVAC and chilled water loops
- Plumbing and mechanical systems in commercial and industrial facilities
- Mining and extraction operations requiring field-assembled couplings
Compatibility & Replacements
Compatible With
- Victaulic plain end fittings and adapters
- Plain end carbon steel pipe (ASTM A-53)
- Beveled end steel pipe
- Schedule 40 and Schedule 80 steel pipe
- 3″ IPS (Iron Pipe Size) piping systems
Replaces / Drop-In Replacement For
This coupling is the Victaulic Style 99 3″ plain end standard unit. Verify the exact part number (L030099PE0 with orange enamel finish) on your specific order to confirm it matches your existing system configuration.
Works With
- Victaulic plain end piping system components
- Standard bolt-torque assembly tools and gauges
- Industrial piping assembly and maintenance workflows
- Field test and inspection protocols (qualified personnel only)






