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European Control Valve&Checking 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 Control Valve&Checking Valve Manufacturers
About Us
Zhejiang Gongzheng Machinery Co., Ltd.
Zhejiang Gongzheng Machinery Co., Ltd. is professional China European Control Valve&Checking Valve Manufacturers and Wholesale European Control Valve&Checking 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 Control Valve&Checking Valve Industry knowledge
European Control Valve & Checking Valve Manufacturer
As a European Control Valve&Checking Valve manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
Zhejiang Gongzheng Machinery Co., Ltd. is a professional European Control Valve & Checking Valve manufacturer and supplier. We produce a comprehensive range of pneumatic control valves and check valves designed for European commercial vehicles, including trucks, trailers, and buses. Our product line covers check valves, 3/2 and 5/2 directional control valves, shut-off cocks, double check valves, and non-return valves, all engineered to meet the specific interface and performance requirements of European vehicle platforms such as DAF, MERCEDES, IVECO, SCANIA, VOLVO, and MAN.
We focus on application fit, material selection, and dimensional accuracy. Each valve is manufactured to match OEM specifications, ensuring reliable air flow control and system protection in heavy-duty braking and auxiliary pneumatic circuits. Our factory, spanning 30,000 m², integrates automated production lines and in-house quality testing to deliver consistent product quality.
Our Product Range
We offer the following valve types within the European Control Valve & Checking Valve category. Each type serves a distinct function in the vehicle's pneumatic system.
| Product Type | Function | Typical Applications |
|---|---|---|
| Check Valve (Non-return Valve) | Prevents reverse air flow, maintains system pressure | Air brake circuits, air suspension, auxiliary pneumatic systems |
| 3/2 Directional Control Valve | Switches air flow between two outlets; button or knob operated | Cab controls, trailer supply, parking brake release |
| 5/2 Directional Control Valve | Directs air to two separate circuits; dual outlet control | Gearbox control, auxiliary functions on DAF/MERCEDES |
| Shut-Off Cock | Manual isolation of air supply | Trailer air supply, emergency cut-off on SCANIA/MERCEDES |
| Double Check Valve | Allows two separate air sources to supply a common circuit without backflow | Dual-circuit brake systems, redundancy applications |
| Precision Integrated Pneumatic Control and Check Valve | Combines control and check functions in a single body | Space-constrained installations, integrated pneumatic modules |
Application Fit and Vehicle Compatibility
Our valves are designed for direct fit on European commercial vehicles. We cover the following platforms:
- DAF / MERCEDES Series: 3/2 button valves, knob-operated control valves, 5/2 directional control valves, shut-off cocks.
- IVECO Series: 3/2 control valves with specific port configurations.
- SCANIA / MERCEDES Series: Shut-off cocks and non-return valves.
- VOLVO FH/FM Series: Directional control valves and range cylinder covers.
- MAN / ZF Series: Directional control valves with M12 interfaces.
- HINO Series: Non-return valves with 3/8" NPT or M16x1.5 ports.
We also supply universal non-return valves (Steyr type) and different port valves (3/8" NPTF interfaces) for broader compatibility.
Critical Specifications and Material Quality
Our valves are constructed from materials that withstand harsh operating conditions:
- Body: Stainless steel or high-grade aluminum alloy for corrosion resistance and durability.
- Seals: NBR or FKM (Viton) elastomers for temperature range -40°C to +120°C.
- Port Threads: Metric (M10, M12, M16x1.5), NPT (3/8"), or NPTF as per application.
- Operating Pressure: Typically 0 to 12 bar (174 psi), with burst pressure exceeding 20 bar.
- Flow Capacity: Sized to match the vehicle's air consumption; check valves have minimal cracking pressure (0.05–0.2 bar).
We test each valve for leakage, flow rate, and cycle life. Our quality management system is IATF 16949 certified, ensuring consistent production standards.
Configuration Options and Customization
We offer standard configurations as listed on our product pages. For OEM or bulk projects, we can customize:
- Port thread type and size (metric, NPT, BSP).
- Actuation method (button, knob, solenoid).
- Body material (stainless steel, aluminum, brass).
- Marking and packaging per customer requirements.
Our R&D team can develop new valve designs based on samples or specifications. We provide rapid prototyping and testing support.
Quality Assurance and Testing
Every valve undergoes functional testing before shipment:
- Leak test at 6 bar (internal and external).
- Flow characteristic measurement.
- Cycle endurance test (minimum 500,000 cycles for control valves).
- Material verification and dimensional inspection.
We maintain traceability through batch numbers and retain test records for each production lot.
Information We Use to Configure Your Solution
To prepare a precise quotation and configuration, we need the following project information:
| Data Required | Why It Matters |
|---|---|
| Vehicle make, model, and year | Ensures correct port configuration and valve function |
| Valve type and function required | Check valve, directional control, shut-off, etc. |
| Port thread size and type | Metric, NPT, BSP; critical for leak-free connection |
| Operating pressure and temperature range | Affects seal material and body design |
| Quantity and delivery timeline | Determines production planning and logistics |
| Sample or drawing (if customization needed) | Enables accurate reverse engineering or design |
Submit these details through our inquiry form, and our engineering team will respond with a tailored proposal within 48 hours.
Installation, Maintenance, and Support
All our valves are designed for straightforward installation using standard tools. We provide installation instructions and torque specifications with each order. For maintenance, we recommend:
- Periodic inspection for seal wear and corrosion (every 100,000 km or annually).
- Replacement of check valve cartridges if cracking pressure drifts.
- Use of compressed air with proper filtration (10 micron or better) to extend valve life.
We stock spare parts for all standard models and can supply service kits including seals and springs. Our technical support team is available for remote troubleshooting and on-site assistance for large fleet or OEM contracts.
Frequently Asked Questions
What is the difference between a check valve and a non-return valve in your product range?
In our product line, the terms are used interchangeably. Both prevent reverse air flow. We offer check valves with stainless steel or brass bodies and various port sizes. The non-return valves listed for HINO and Steyr types are functionally identical but have different mounting interfaces.
Can you supply valves with custom port threads for non-European vehicles?
Yes. While our standard range focuses on European vehicle interfaces (metric and NPT), we can produce valves with BSP, NPTF, or other thread types for specific applications. Provide the thread specification and we will adjust the design accordingly.
What is the typical lead time for a standard check valve order?
For standard models in stock, we can ship within 5–10 working days. For larger quantities (500+ pieces) or customized valves, lead time is typically 20–30 working days depending on complexity and material availability.
Do your valves come with a warranty?
We provide a 12-month warranty against manufacturing defects from the date of shipment. This covers material and workmanship issues. Warranty does not cover damage from improper installation, contamination, or misuse.
How do I identify the correct valve for my truck model?
Check the original part number on the existing valve. If unavailable, provide the vehicle VIN or the valve's port thread size and function. Our technical team can cross-reference to our catalog and recommend the correct replacement.
Can you provide samples for testing before bulk order?
Yes. We offer sample orders for most standard valves. Sample cost is invoiced, and we can deduct it from the first bulk order. Samples are shipped within 3–5 working days after order confirmation.
Related Products and Categories
Our portfolio also includes Products, European Commercial Vehicles for applications with different operating ranges, interfaces or integration requirements.
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