ElectroJoint™ Monolithic Isolation Joints (MIJs) are a cost-effective, maintenance-free solution for electrically isolating piping systems which help prevent corrosion and preserving cathodic protection performance. Designed to improve pipeline integrity and long-term reliability, the ElectroJoint™ MIJ provides a fully integrated electrical isolation solution that helps protect critical infrastructure from corrosion, stray currents, and operational failures.
Unlike conventional flange assemblies, which can be vulnerable to installation errors and component failures, the ElectroJoint™ MIJ eliminates the need for complex field assembly. Each joint is delivered as a complete, factory-coated isolation system requiring only two butt welds for fast, efficient installation. This streamlined design reduces labor costs, minimizes installation risks, and enhances overall system performance.
Manufactured to the highest quality standards, every ElectroJoint™ Monolithic Isolation Joint undergoes individual weld inspection and hydrostatic testing within a certified ISO Quality Management System. Rigorous testing ensures dependable performance, leak-free operation, and long service life in demanding gas distribution applications.
By eliminating common failure points associated with traditional flange assemblies, the ElectroJoint™ MIJ provides a practical and economical solution for preventing pipeline integrity issues caused by human error, helping operators improve safety, reduce maintenance requirements, and extend the life of their pipeline assets.
Features & Benefits
- Helps eliminate electrical short circuits during field assembly, installation, and maintenance operations
- Internally and externally coated to provide superior protection against corrosive gases, moisture, and particulate contamination
- Individually electrically tested and weld-inspected to ensure reliability, safety, and long-term performance
- Manufactured under a certified ISO Quality Management System for consistent product quality and compliance
- Designed to help reduce or eliminate costly underground vault construction requirements
- Available from stock in ANSI Class 150, 300, and 600 pressure ratings up to NPS 8
- Every weld is verified using Magnetic Particle Inspection (MPI) for enhanced weld integrity and quality assurance
- Each MIJ is hydrostatically pressure tested at 1.5 times the Maximum Allowable Operating Pressure (MAOP)
- Fast, streamlined installation process minimizes downtime and reduces labor costs
- Backed by a comprehensive 1-year full warranty for added confidence and peace of mind
Product Specifications
150# ANSI CLASS (PN OR DP 25)
- 150# ANSI Pressure Rating = 285 psi
- ElectroJoint™ Continuous Operating Pressure = 300 psi
- Test Pressure = 450 psi
- Working Temperature: Range = 1 °F to 158 °F (-17 °C to 70 °C)
- Electrical Resistance (Dry Air) = ≥ 10 MΩ at 1000 V DC
- Breakdown Voltage (Dry Air) = 3 kV AC, 50 Hz for 1 minute
300/600# ANSI CLASS (PN OR DP 100)
- 600# ANSI Pressure Rating = 1,480 psi
- ElectroJoint™ Continuous Operating Pressure = 1,500 psi
- Test Pressure = 2,225 psi
- Working Temperature Range = 1 °F to 158 °F (-17 °C to 70 °C)
- Electrical Resistance (Dry Air) = ≥ 10 MΩ at 1000 V DC
- Breakdown Voltage (Dry Air) = 3 kV AC,50 Hz for 1 minute