RIGID COUPLING

The VTCON Rigid Coupling (Style 1GS Rigid Coupling) is a grooved coupling for connecting steel pipes. It is designed to support fast installation, reliable sealing and stable performance in commercial and industrial fire protection piping systems.

Material: Ductile Iron ASTM A-536 Grade 65-45-12
Pressure: 300 PSI / 2.065 MPa / 20.65 bar
Connection: Grooved coupling
Finish: Fusion Bonded Epoxy Coated

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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

SpecificationDetails
Product NameRigid Coupling
Style1GS
Product TypeCouplings
MaterialDuctile Iron ASTM A-536 Grade 65-45-12
ConnectionGrooved coupling
Working Pressure300 PSI / 2.065 MPa / 20.65 bar
Surface FinishFusion Bonded Epoxy Coated
ItemsSpecification
Standard ColorOrange Red
Size RangeDN25–DN300 / 1"–12"
GasketEPDM standard; Nitrile NBR / Silicone / others optional
Bolts & NutsHeat-treated electro-galvanized bolts with oval neck and heavy duty hexagon nuts
ApplicationFire protection piping systems
CertificationUL Listed / FM Approved

Product Structure & Dimensions

Grooved Coupling Structure & Dimensions

Dimensions are for reference only. Please contact VTCON for detailed drawings and project requirements.

Applications

Fire sprinkler branch piping

Main pipe outlet connection

Commercial building fire protection

Industrial fire protection piping

Water-based fire suppression systems