Mining slurry and paste backfill systems typically involve:
High solids concentration and abrasive media
Continuous 24/7 operation
Pressure pulsation from pumps
Vibration and mechanical stress
Axial and radial load on pipeline connections
Flange connections remain common for main pipelines but often require long installation time, multiple bolts, and extended maintenance downtime. For high-pressure pump outlets, branch lines, and areas with frequent maintenance, a robust, high-pressure forged coupling provides faster, safer, and more reliable connections.
ZX219, ZX245, and ZX273 couplings are designed for working pressures exceeding 600 Bar.
Key Features:
Fully forged body for maximum mechanical strength
Dual-end SC8.8 high-strength bolts
Letter-type flange interface for axial restraint
Durable for abrasive slurry and paste backfill
Designed to withstand pulsating pressure and fatigue loads
1. Pump Discharge Sections
High pulsation and vibration require strong yet efficient connections.
2. Paste Backfill Branch Lines
Frequent inspection and replacement demand faster maintenance solutions.
3. High-Wear Replacement Segments
Reduced downtime increases operational productivity.
4. Surface and Underground Pipelines
Where high pressure and abrasion coexist.
Forging ensures:
Higher metal density
Improved fatigue resistance
Greater impact tolerance
Superior mechanical performance under cyclic pressure
Compared to cast couplings, forged components offer better long-term reliability in extreme mining environments.
These couplings are ideal for:
High-pressure pump outlet sections
Branch pipelines in paste backfill systems
Areas with frequent maintenance or replacement
Critical pipeline segments where downtime is costly
They are not intended to replace all flanged connections in long-distance pipelines but serve as a strategic solution in high-pressure segments.
