ZSQB Hydraulic Couplers – Reliable, Leak-Free Quick Connection Solutions
The ZSQB Hydraulic Couplers are engineered to provide secure, efficient, and leak-free connections for hydraulic systems in demanding industrial and mobile applications. Built with precision machining and robust materials, these couplers ensure high performance under extreme pressure, while maintaining easy and quick connect/disconnect capability. Designed for durability, safety, and versatility, the ZSQB series is suitable for a wide range of hydraulic fluids and environments, making them an essential component for reliable hydraulic system operation.
Key Features
Quick Connect & Disconnect – Allows fast and easy coupling without fluid loss or air inclusion.
Leak-Free Performance – Precision sealing prevents fluid leakage under high-pressure operation.
Durable Construction – Made from high-strength steel with corrosion-resistant plating for long service life.
High Pressure Rating – Engineered to withstand the rigorous demands of modern hydraulic systems.
Universal Compatibility – Suitable for a variety of hydraulic hoses, pumps, and cylinders.
Safety Locking Mechanism – Prevents accidental disconnection during operation.
Wide Temperature & Fluid Compatibility – Works with petroleum-based oils, synthetic fluids, and other hydraulic media.
Benefits
Enhanced Efficiency – Saves time with quick connection/disconnection in maintenance and operation.
Reduced Downtime – Reliable sealing prevents leaks and fluid loss, minimizing maintenance.
Operator Safety – Secure locking and leak-free design reduce risks of spills and pressure release accidents.
Versatility – Suitable for diverse industries and compatible with a wide range of hydraulic equipment.
Cost-Effective Reliability – Long-lasting materials and robust design lower replacement frequency.
Applications
Construction Equipment – Excavators, loaders, cranes, and bulldozers.
Agricultural Machinery – Tractors, harvesters, and hydraulic sprayers.
Industrial Machinery – Hydraulic presses, material handling equipment, and manufacturing systems.
Mining & Heavy Equipment – High-pressure systems for drilling and excavation machinery.
Oil & Gas – Hydraulic power units, rigs, and offshore equipment.
Marine & Transportation – Hydraulic steering, lifting, and winching systems.
Why Choose ZSQB Hydraulic Couplers?
The ZSQB Hydraulic Couplers are designed for strength, safety, and efficiency, ensuring long-lasting reliability in even the toughest environments. With quick connection capability, precision sealing, and durable construction, they are the preferred choice for industries that demand leak-free and high-performance hydraulic connections. Whether in construction, agriculture, mining, or industrial operations, ZSQB couplers deliver dependable and efficient hydraulic performance.
- Operating Pressure: 700 bar
Hydraulic Couplers
- High flow rate and high pressure resistance.
- Dust cap included on all models.

| Model Number | Female Model | Male Model | Dimension (mm) | |||||
| A | Thread type B | C | D | E | F | |||
| ZSQB-1/4T | ZSQB-1/4TF | ZSQB-1/4TM | 58.5 | 1/4″-18NPT | 28.6 | 30 | 26 | Φ10 |
| ZSQB-3/8J | ZSQB-3/8JF | ZSQB-3/8JM | 59 | 3/8″-19PT | 30.5 | 28 | 24 | Φ12.7(1/2″) |
| ZSQB-3/8T | ZSQB-3/8TF | ZSQB-3/8TM | 58.5 | 3/8″-18NPT/PT | 38.5 | 33 | 28 | Φ12 |
| ZSQB-3/8U | ZSQB-3/8UF | ZSQB-3/8UM | 72 | 3/8″-18NPTF/PT | 35 | 37 | 32 | Φ19.05(3/4″) |
| ZSQB-37 | ZSQB-372F | ZSQB-372M | 64 | 3/8″-18NPTF/PT | 32 | 28.5 | 24H | Φ11.25(7/16″) |

| Model Number | Female Model | Dust Cap Model | Male Model | Dust Cap Model | Dimension (mm) | |||||
| A | Thread type B | C | D | E | F | |||||
| ZSQB-1/4H | ZSQB-1/4HF | ZSQB-1/4HF-1 | ZSQB-1/4HM | ZSQB-1/4HM-1 | 59.75 | 1/4″-18NPTF | 15.88 | 24 | 28 | 15.88 |
| ZSQB-1/4HG | ZSQB-1/4HGF | ZSQB-1/4HGM | 54.85 | 1/4″-18NPTF | 28.2 | 28.4 | 22 | 15.88 | ||

