Zhejiang Gongzheng Machinery Co., Ltd. is a professional manufacturer of pneumatic braking components for European commercial vehicles. Our European Load Sensing Valve range is designed to modulate rear brake pressure according to actual axle load, preventing wheel lock-up and improving braking stability on trucks, tractors, and trailers. As a dedicated European Load Sensing Valve supplier, we offer multiple interface configurations, control pressure variants, and mechanical or pneumatic actuation options to match OEM and aftermarket requirements.
We supply eight distinct load sensing valve models, each engineered for a specific vehicle series or control architecture. The table below summarises the available variants and their primary application fit.
| Model / Series | Key Features | Target Application |
|---|---|---|
| Load Sensing Valve with VOSS Interfaces | VOSS plug-in connections; compact housing; direct bolt-on replacement | Mercedes-Benz series (Actros, Atego) |
| High-Protection Load Sensing Valve | Enhanced corrosion resistance; sealed electrical/ pneumatic ports | DAF / RVI series (off-road and high-moisture environments) |
| Mechanically Linked Load-Sensing Valve | Mechanical lever actuation; adjustable sensing ratio; robust construction | Trailers and rigid trucks with mechanical suspension linkage |
| Load Sensing Valve with VOSS Interfaces and Silencer | Integrated exhaust silencer; reduced noise emission; VOSS ports | Urban buses and noise-sensitive applications |
| Universal High-Pressure Load Sensing Valve | 3.8 bar control pressure; wide operating range; multi-vehicle compatibility | Universal fit for European trucks and trailers |
| Multi-Delivery Load Sensing Valve | Multiple delivery ports; progressive pressure modulation | DAF / SCHMITZ trailer combinations |
| Pneumatically Controlled Intelligent Load-Sensing Regulating Valve | Pneumatic pilot control; electronic feedback option; adaptive load response | Advanced EBS-equipped vehicles requiring dynamic load sensing |
| Air Brake Hand Control Valve | Manual pneumatic control; ergonomic handle; integrated load sensing function | Trailer park brake and auxiliary load control |
Load sensing valves are installed between the rear axle and the chassis frame. The valve receives a mechanical or pneumatic input proportional to the suspension deflection (axle load) and modulates the brake pressure delivered to the rear brakes. Correct selection depends on:
Every load sensing valve we manufacture is tested for:
Our load sensing valves can be integrated into pneumatic braking systems with or without electronic control. For vehicles equipped with EBS, the pneumatically controlled intelligent regulating valve accepts a 0–10 V or PWM signal from the ECU, enabling dynamic load-dependent braking. Mechanical valves are supplied with a pre-set lever ratio; we can adjust the ratio during production based on your axle geometry and target deceleration curve.
We also offer custom bracket designs, port thread variants (M16×1.5, M22×1.5, G1/4), and colour-coded identification for aftermarket traceability.
Our manufacturing facility in Zhuji, Zhejiang, operates under IATF 16949 quality management. Each load sensing valve undergoes 100% functional testing on a dedicated pneumatic test bench, verifying cracking pressure, flow rate, and leakage. We maintain material certifications for all aluminium and steel components. Our valves comply with ECE R13 requirements for braking distribution.
Installation is a direct bolt-on replacement for the original valve. We provide a mounting template and torque specifications with each unit. Recommended maintenance includes an annual inspection of the linkage (mechanical type) and a pneumatic leakage test. Spare parts – including diaphragm kits, O-ring sets, and lever assemblies – are available from stock. Our technical team can assist with first-fit validation via sample shipment.
To prepare a precise quotation and configuration, we require the following project data:
A mechanically linked valve uses a lever arm connected to the axle to sense load; it is simple, robust, and suited for leaf-spring suspensions. A pneumatically controlled valve uses an air signal from the suspension bellows, making it ideal for air-suspension systems and easier to integrate with electronic braking controls.
Yes. Our VOSS-interface models are direct-fit replacements for Mercedes Actros and Atego series. The port configuration and mounting hole pattern match the original, so no line modification is required.
We do. Provide the required lever length and travel angle, and we will manufacture the valve with the correct ratio. Sample validation is recommended for first-time custom orders.
Standard models are shipped within 15–25 working days after order confirmation, depending on quantity. Custom configurations may require 30–40 working days including sample approval.
Yes. All our load sensing valves are designed and tested to meet ECE R13 requirements for braking distribution. Compliance documentation is available upon request.
Absolutely. We support sample orders for evaluation. Contact our sales team with your vehicle details, and we will recommend the correct model and arrange shipment.
Our portfolio also includes Products, European Commercial Vehicles, European Air Dryer for applications with different operating ranges, interfaces or integration requirements.