High Pressure Thread Locked Hydraulic Coupler

The KZE-B series thread-locked hydraulic quick coupling is engineered for severe high-pressure applications where strong pressure impulses and mechanical vibrations occur. Utilizing a rugged screw-to-connect sleeve mechanism, it ensures a secure, positive connection that resists accidental loosening. Equipped with high-performance poppet valves, it delivers automatic fluid shut-off during disconnection to prevent fluid loss. This robust coupler is widely used in construction machinery, agricultural equipment, oilfields, and demanding industrial hydraulic systems.

Technical Specifications

• Product Series: KZE-B Series

• Connection Mechanism: Threaded Sleeve Locking (Screw-to-Connect)

• Valving Design: Precision Machined Poppet Valve

• Body Material: High-Strength Carbon Steel

• Surface Treatment: Cr3+ Trivalent Zinc Plating for superior corrosion resistance

• Standard Thread Options: Female and Male NPT / BSP / BSPP

• Nominal Body Size: Available from 1/4 inch to 2 inch (e.g., 3/8" depicted)

• Locking Sleeve Type: Knurled surface for optimal manual gripping

• Sealing Interface: High-grade Nitrile (NBR) O-ring with Polyurethane back-up ring

• Optional Seal Material: Viton (FKM) for high-temperature chemical environments

• Pressure Rating: Engineered for high-pressure heavy-duty operation

• Flow Characteristic: Optimized internal geometry for maximum flow and low pressure drop

• Interchangeability: Compatible with standard international threaded-lock profile couplings

• Disconnection Security: Threaded sleeve design prevents accidental impact disconnection

• End Connections: Available in both male thread and female thread configurations

• Fluid Compatibility: Suitable for mineral-based hydraulic oils, fluids, and lubricants

• Working Temperature Range: Standard operating range from -20 to +120 degrees Celsius

• Dust Protection: Compatible with optional steel or rubber dust caps and plugs

• Mechanical Strength: Robust construction handles high bending moments and mechanical vibrations

• Leakage Performance: Bubble-tight closure upon disconnection via spring-loaded valve

• Quality Assurance: Manufactured and tested in compliance with strict industrial hydraulic standards