Product Description: SQBB Series Pilot Operated Sequential Valves

Core Design & Performance Highlights

1. Optimized Balanced Spool/Piston ConstructionThe SQBB series adopts a balanced internal structure that minimizes friction and pressure loss, ensuring fast response times and consistent operation even under high-pressure working conditions. This design also effectively reduces internal leakage, enhancing the overall efficiency of the hydraulic system and preventing unnecessary energy waste.
2. Flexible Pressure Control & Configuration OptionsTailored to diverse system requirements, the SQBB variants cover a wide range of pressure setting ranges and control interface specifications. Whether for low-pressure precision control or high-pressure heavy-load applications, these valves maintain accurate pressure sequencing, triggering subsequent actuator actions only when the preset system pressure threshold is met.
3. Durable Sealing & CompatibilityEquipped with application-specific sealing materials, the SQBB series exhibits excellent compatibility with mineral-based hydraulic oils and harsh operating environments (including temperature fluctuations and contamination resistance). As drop-in cartridge components, they fit standard industry cavities, enabling seamless retrofitting and system upgrades without extensive rework.

Key Functions & Application Scenarios

• Sequential Actuation ControlThese valves are the core components for coordinating multi-actuator systems. They automatically unlock the flow path to the next actuator when the preceding motion reaches the preset pressure, ensuring orderly, synchronized operation of hydraulic cylinders or motors—critical for automated production lines, construction machinery, and material handling equipment.
• Secure Load-HoldingIn lifting and positioning systems, the SQBB series prevents unintended load drifting or dropping by maintaining stable pressure in the circuit, even during system idle periods. This feature significantly improves operational safety for equipment such as aerial work platforms, forklifts, and hydraulic presses.
• Circuit Protection & Efficiency OptimizationBy regulating pressure distribution in hydraulic circuits, the valves help avoid system overload and pressure spikes, extending the service life of pumps, hoses, and other hydraulic components while boosting overall system efficiency.

Installation & Operational Advantages