Why Non-Threaded Couplers Like CB-SP3S-TC Are Ideal for
High-Pressure Jacking Systems
Hydraulic jacking systems often operate in harsh, high-pressure
conditions where safety, speed, and simplicity are paramount.
Traditional threaded couplers, while robust, come with clear
drawbacks: time-consuming connections, potential for
cross-threading, and high failure risk under vibration. The CB-SP3S-TC offers a clean alternative—combining 10,000 PSI capability with a
sleeve-lock, non-threaded design built for demanding hydraulic
environments.
Common Problems with Threaded Couplers in Jacking Systems
Connection Under Load
• Threaded fittings can seize under residual pressure, making
disconnection difficult or dangerous.
Risk of Cross-Threading
• Frequent connects/disconnects in field conditions can lead to
damaged threads, leaks, or total failure.
Vibration Loosening
• High-pressure lifting often involves tool or platform vibration,
which can cause threaded fittings to back off if not perfectly
secured.
CB-SP3S-TC Structural Advantages
Sleeve Lock Mechanism
• Allows fast, secure connection without twisting or torque.
• Locks in place via ball mechanism—no chance of accidental
loosening.
Positive Valve Stop
• Ensures consistent valve alignment and reliable flow cutoff with
metal-to-metal sealing.
No Swivel = No Stress Points
• Non-rotating design avoids torsional fatigue or valve shift under
stress.
Faster Operation
• Connects in seconds—even with gloves or oily hands—ideal for
field use or emergency repairs
Application Scenarios
| Application | Risk with Threaded Coupler | CB-SP3S-TC Advantage |
|---|
| Railway Jack Maintenance | Vibration, fatigue failure | Locking sleeve prevents disconnection |
| Construction Shoring | Residual pressure buildup | Quick, pressure-tolerant connection |
| Bridge Lifting Systems | Tool damage during connect | Zero-thread design avoids twisting |
| Mining Support Beams | Harsh environment, leak risks | Hardened steel body with NBR sealing |
Comparison vs Threaded Models
| Feature | Threaded Coupler | CB-SP3S-TC |
|---|
| Pressure Rating | Up to 6000 PSI | 10,000 PSI |
| Connection Time | Slow (thread manually) | Quick push-to-lock |
| Risk of Misconnection | High (cross-thread) | Very low |
| Vibration Resistance | Moderate | Excellent (sleeve lock) |
| Tool Requirement | Wrenches needed | Hand-connect |
When to Use CB-SP3S-TC
You should consider CB-SP3S-TC if:
• You operate jacks or lifting systems at >7000 PSI;
• Equipment is used frequently in the field, with risk of contamination or misconnection;
• Vibration or shock-loading is common during hydraulic operation;
• There is limited space or time to connect fittings under load.
Call to Action
Still relying on threaded couplers in your 10,000 PSI jacking
system?
Upgrade to Carterberg CB-SP3S-TC for a safer, faster, more reliable connection.
Contact us for samples or system compatibility advice.
