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European Relay Valve
- European Commercial Vehicles
- European Air Dryer
- European Unloader Valve
- European Circuit Protection Valve
- European Pressure Limiting Valve
- European Foot Brake Valve
- European Hand Brake Valve
- European Relay Valve
- European Trailer Valve
- European Release Valve
- European Load Sensing Valve
- European Levelling Valve
- European Solenoid Valve & Sensor
- European Abs&Ebs Valve
- European EBS Axle Modulator
- European Quick Release Valve
- European Gearbox Valve
- European Control Valve&Checking Valve
- European Brake Chamber
- European Others
- European Condensor&Drain Valve
- American Commercial Vehicles
European Relay Valve Manufacturers
About Us
Zhejiang Gongzheng Machinery Co., Ltd.
Zhejiang Gongzheng Machinery Co., Ltd. is professional China European Relay Valve Manufacturers and Wholesale Air Brake Relay Valve Factory. Our core products include ABS (Anti-lock Braking System) and EBS (Electronic Braking System) control units, air dryers, air brake valves, and spring brake chambers, designed to meet the rigorous demands of the global commercial vehicle industry.
With advanced production technology, strict quality control, and a commitment to innovation, we provide reliable and efficient solutions for truck and trailer manufacturers worldwide. Our products comply with international standards, ensuring safety, durability, and superior performance in diverse operating conditions.
Key Products:
ABS & EBS Control Systems – Enhancing vehicle safety and stability.
Air Dryers – Ensuring clean, moisture-free air for braking systems.
Air Brake Valves – Precision-engineered for optimal braking performance.
Spring Brake Chambers – Robust design for heavy-duty applications.
At Zhejiang Gongzheng Machinery, we prioritize customer satisfaction, technological advancement, and sustainable growth. Partner with us for trusted braking solutions that drive excellence.
Safety. Reliability. Innovation.
With advanced production technology, strict quality control, and a commitment to innovation, we provide reliable and efficient solutions for truck and trailer manufacturers worldwide. Our products comply with international standards, ensuring safety, durability, and superior performance in diverse operating conditions.
Key Products:
ABS & EBS Control Systems – Enhancing vehicle safety and stability.
Air Dryers – Ensuring clean, moisture-free air for braking systems.
Air Brake Valves – Precision-engineered for optimal braking performance.
Spring Brake Chambers – Robust design for heavy-duty applications.
At Zhejiang Gongzheng Machinery, we prioritize customer satisfaction, technological advancement, and sustainable growth. Partner with us for trusted braking solutions that drive excellence.
Safety. Reliability. Innovation.
Certificate Of Honor
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European Relay Valve Industry knowledge
European Relay Valve Manufacturer – Zhejiang Gongzheng Machinery
Zhejiang Gongzheng Machinery Co., Ltd. is a professional European Relay Valve manufacturer and supplier, specializing in air brake relay valves for commercial vehicles. Our product range covers standard pneumatic relay valves, high-response relay valves, full-bore relay valves for SCANIA, heavy-duty relay valves with non-return inlets, DAF series high-ratio relay valves (1:2.7), universal VOSS-interface relay valves, silent relay valves, differential relay valves, trailer brake relay valves, load-sensing integrated relay valves, and high-flow brake accelerator valves. We serve truck, trailer, and bus manufacturers globally, providing reliable braking performance for European commercial vehicle platforms.
Our European Relay Valve Range
We supply over 30 relay valve models across three pages of listings, each designed for specific vehicle applications and pneumatic system requirements. Below is a summary of key types and their typical fitment.
| Valve Type | Key Features | Typical Application |
|---|---|---|
| Standard Pneumatic Relay Valve | Basic relay function, M22 ports, robust aluminum body | General truck/trailer air brake systems |
| High-Response Relay Valve | Fast actuation, reduced lag | Emergency braking, high-cycle applications |
| Full-Bore Relay Valve (SCANIA) | M22 exhaust, high flow capacity | SCANIA trucks and heavy-duty platforms |
| Heavy-Duty with Non-return Inlet | Integrated check valve, prevents backflow | Trailer systems, multi-axle configurations |
| DAF Series High-Ratio (1:2.7) | Amplified output ratio, compact design | DAF trucks, sensitive brake modulation |
| Universal VOSS-Interface Relay Valve | VOSS plug-in connections, easy installation | MAN, IVECO, NEOPLAN, and mixed fleets |
| Silent Relay Valve (Snap-on Exhaust) | Low-noise exhaust, snap-on mounting | Urban buses, noise-sensitive environments |
| Differential Relay Valve | Differential control for dual circuits | Tractor-trailer combinations, safety-critical |
| Trailer Brake Relay Valve | Dedicated trailer control, robust sealing | Trailer air brake systems |
| Load-Sensing Integrated Relay Valve | Built-in load sensing, adaptive braking | Heavy-duty trucks with variable loads |
| High-Flow Brake Accelerator Valve | High flow rate, rapid pressure build | Performance braking, emergency systems |
Application Fit and Material Considerations
Our European relay valves are designed for compressed air brake systems on trucks, tractors, trailers, and buses operating under European standards. Valve bodies are manufactured from high-strength aluminum alloy or corrosion-resistant materials, with internal seals compatible with standard mineral-based compressor oils and wide temperature ranges (-40°C to +80°C). Port configurations include M22x1.5, VOSS, and snap-on interfaces to match OEM plumbing.
Critical Specifications and Performance
- Operating pressure: 6.5–12.5 bar (standard pneumatic systems)
- Flow capacity: Up to 3000 L/min at 8 bar (depending on model)
- Response time: < 0.2 seconds for high-response variants
- Leakage rate: < 10 cm³/min at 8 bar (internal and external)
- Port sizes: M22x1.5, VOSS DN10/DN12, snap-on 3/8" or 1/2"
- Weight: 0.5–1.8 kg depending on configuration
Configuration Options and Customization
We offer several configuration choices to match your vehicle platform:
- Control signal: Single or dual pneumatic pilot ports
- Exhaust type: Standard open, snap-on silencer, or flap exhaust
- Predominance ratio: 1:1, 1:1.5, 1:2.7, or adjustable predominance
- Mounting: Bracket or direct bolt-on with integrated flange
- Interface: M22 threaded, VOSS plug-in, or snap-on for quick assembly
- Customization: OEM/ODM available – we can modify port positions, add non-return valves, or integrate load-sensing ports based on your sample or drawing.
Quality Assurance and Compliance
Our manufacturing facility in Zhuji, Zhejiang, operates under IATF 16949 quality management system. Each relay valve undergoes 100% functional testing for actuation pressure, leakage, and flow rate before shipment. We also hold relevant certifications for European market compliance. Our in-house laboratory supports material analysis and endurance testing.
Installation, Maintenance, and Support
Installation follows standard pneumatic practice: ensure clean, dry air supply; torque port connections to manufacturer specifications (typically 25–35 Nm for M22); and verify correct pilot signal routing. Maintenance involves periodic inspection of seals and exhaust ports for contamination. We provide technical documentation, including dimensional drawings and installation instructions, with each order. For fleet customers, we recommend spare parts kits (seal and diaphragm sets) to reduce downtime.
Information We Use to Configure Your Solution
To prepare a precise quotation and configuration, we need the following project data:
- Vehicle make, model, and year (e.g., SCANIA R-series, DAF XF, MAN TGS)
- Brake system type (standard pneumatic, EBS, or ABS integration)
- Required port interface (M22, VOSS, snap-on) and thread size
- Desired predominance ratio or control signal type
- Operating environment (temperature range, exposure to moisture/chemicals)
- Any existing sample, part number, or OEM reference
- Annual volume and delivery schedule
Submit these details through our inquiry form, and our engineering team will respond with a tailored proposal within 48 hours.
Frequently Asked Questions
Q: What is the difference between a standard relay valve and a high-response relay valve?
A: A high-response relay valve uses optimized internal passages and a larger diaphragm to reduce actuation lag, typically achieving response times under 0.2 seconds. It is recommended for emergency braking systems or applications requiring rapid pressure build.
Q: Can I use a European relay valve on an American truck?
A: European relay valves typically use M22 or VOSS ports, while American systems often use NPT or 3/8" tube fittings. Adapters may be available, but we recommend selecting the correct regional valve for proper fit and performance.
Q: Do you offer relay valves with integrated non-return valves?
A: Yes, we have models with built-in non-return inlets, such as the Heavy-Duty Relay Valve with Non-return Inlet. These prevent backflow from the delivery circuit to the control circuit.
Q: What is the typical lead time for custom relay valves?
A: For standard models, we ship within 15–25 working days. Custom configurations (OEM/ODM) require 30–45 working days after drawing approval.
Q: How do I identify the correct relay valve for my vehicle?
A: Provide the vehicle VIN, OEM part number, or a photo of the existing valve. Our team cross-references with our database to match the correct port type, predominance ratio, and mounting.
Q: What certifications do your relay valves carry?
A: Our products are manufactured under IATF 16949 certified processes. Specific models comply with ECE R13 and other applicable European standards. Contact us for compliance documentation.
Related Products and Categories
Our portfolio also includes Products, European Commercial Vehicles, European Air Dryer for applications with different operating ranges, interfaces or integration requirements.
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