Application range of ZDB10V superimposed relief valve

As a pilot pressure control valve, the ZDB10V superimposed relief valve achieves multi-stage pressure regulation and stable control through modular design. It is widely used in engineering machinery, industrial equipment, shipbuilding, automation equipment, hydraulic testing systems and other fields. The following is its specific application scope and technical advantages:

1. Core application areas

Engineering machinery

Typical equipment: hydraulic circuits such as excavators, cranes, loaders, etc.

Function: As the main safety valve to prevent system overpressure, it also adapts to different working conditions (such as excavation, walking, and lifting) through multi-stage pressure adjustment.

Advantages: The superimposed structure saves installation space, responds quickly to pressure changes, and avoids equipment damage due to pressure shock.

Industrial automation equipment

Typical equipment: injection molding machines, die-casting machines, hydraulic presses and other precision manufacturing equipment.

Function: Provide stable pressure during mold closing, injection, pressure holding and other stages to ensure product molding quality.

Advantages: Supports multi-level pressure switching, adapts to complex processes, and reduces energy loss.

shipbuilding

Typical systems: steering gear, windlass, deck machinery hydraulic system.

Function: Stably control pressure in marine environment, resist salt spray corrosion and vibration shock.

Advantages: Anti-corrosion design (such as fluororubber seal) extends service life, and modular structure facilitates maintenance.

Metallurgical and Mining Equipment

Typical equipment: heavy-duty equipment such as rolling mills, crushers, and elevators.

Function: Limit system pressure and prevent hydraulic components from overloading in high temperature and high dust environments.

Advantages: The high-strength alloy valve body can withstand impact loads, and the optimized flow channel design reduces pressure loss.

Hydraulic test bench and hydraulic press

Function: Used as a standard pressure source to calibrate hydraulic system performance or simulate working conditions for testing.

Advantages: Precise pressure adjustment capability (such as ZDB10VA2-L4X/20V model supports 0-20MPa adjustment) improves test reliability.

2. Technical advantages support applications

Modular design

The superimposed structure allows direct integration with other hydraulic valves (such as directional valves, pressure valves), reducing pipeline connections and reducing the risk of leakage.

Example: ZDB10VP2-L4X/20 can be combined with other Hengli Lixin L4X series valves to quickly build complex hydraulic systems.

Multi-stage pressure regulation

It supports 4 pressure levels (such as 50/100/200/315bar) and 6 oil circuit options, and can achieve stepless pressure adjustment through the knob or adjusting bolt with a protective cap.

Applicable scenarios: Working conditions that require frequent pressure switching (such as the pressure maintaining and mold opening stages of an injection molding machine).

High response sensitivity

The pilot-operated structure quickly balances pressure through the orifice and poppet valve core to ensure that the system pressure fluctuation is less than ±1%.

Advantages: Maintain pressure stability during dynamic load changes (such as crane lifting) and avoid equipment shaking.

Environmentally resistant design

The valve body is made of high-strength alloy steel, and the sealing material is compatible with mineral oil, water glycol and other media. The operating temperature range covers -20°C to 80°C.

Anti-corrosion options: Viton seals are suitable for phosphate ester-based flame-retardant hydraulic oils, extending the life of valves in chemical equipment.