Overview
The VTCON Rigid Coupling is designed for grooved fire protection piping systems where fast installation, reliable connection and long-term durability are required.
The coupling uses a ductile iron housing with gasket, bolts and nuts to form a secure grooved pipe connection. It helps reduce installation time compared with welded or threaded pipe connections.
Please refer to the structure drawing and dimension table for model selection, and contact VTCON for project-specific technical confirmation.
Key Features
• Ductile iron housing for strength and durability
• EPDM gasket as standard, with optional gasket materials available
• Designed to provide a rigid pipe connection
• Grooved connection for fast installation and maintenance
• Fusion bonded epoxy coated surface for corrosion resistance
• Heat-treated bolts and heavy duty hexagon nuts
• Suitable for commercial and industrial fire protection piping systems
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Rigid Coupling |
| Style | 1GS |
| Product Type | Couplings |
| Material | Ductile Iron ASTM A-536 Grade 65-45-12 |
| Connection | Grooved coupling |
| Working Pressure | 300 PSI / 2.065 MPa / 20.65 bar |
| Surface Finish | Fusion Bonded Epoxy Coated |
| Items | Specification |
|---|---|
| Standard Color | Orange Red |
| Size Range | DN25–DN300 / 1"–12" |
| Gasket | EPDM standard; Nitrile NBR / Silicone / others optional |
| Bolts & Nuts | Heat-treated electro-galvanized bolts with oval neck and heavy duty hexagon nuts |
| Application | Fire protection piping systems |
| Certification | UL Listed / FM Approved |





