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4 Circuit Protection Valve

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  • Diankou Industrial Area, Zhuji, Zhejiang, China

  • +86-575-87657752

  • +86-13456546016

  • [email protected]

Zhuji Weicheng Auto Parts Co.,Ltd.

Zhuji Weicheng Auto Parts Co., Ltd. is located in Diankou Town, Zhuji City, Zhejiang province of China. As China OEM Truck 4 Circuit Protection Valves Manufacturers, Factory, we specialize in the research, development, design, and manufacture of heavy duty trucks and trailers control system accessories.

Our products including foot brake valve, hand brake valve, relay valve, unloader valve, four circuit protection valve, trailer control valve, air dryer, spring brake chamber, clutch booster, and slack adjuster, are widely used on many types of the heavy vehicle around the world, such as MERCEDES BENZ, SCANIA, VOLVO, MAN, DAF, and HINO.

Our company introduces hi-tech quality testing instruments and precise production equipment. Truck 4 Circuit Protection Valves OEM. Meanwhile，we have also invited senior engineers and professional technicians to engage in product research, development, and production. At present, our products of the highest quality, competitive price, and excellent services have won a good reputation among customers at home and abroad.

For the Customer Provides the Omni-directional Service

  • For Manufacturers & Fabricators

    • Automotive Parts, Precision Tools & Dies
    • High quality CNC machining parts and Special Automation equipment.

  • For Wholesalers& Distributors

    • Competitive pricing on bulk orders
    • The customers are different but Weicheng has one unique philosophy to guide the latter to success.

  • For Project Contractors

    • Produce custom auto parts with client-specific measurements
    • Hundreds of CNC precision tooling and molds diversify your marketing campaign.

Company Certificate

As Wholesale Truck 4 Circuit Protection Valves Factory, our products have a variety of certification,
SGS/ROHS/ISO14001/IATF16949

  • Address:

    Diankou Industrial Area, Zhuji, Zhejiang, China

  • Mob:

    +86-13456546016

  • Tel:

    +86-575-87657752

  • Fax:

    +86-575-87616386

  • Email:

    [email protected]

If you need it, please contact us!

We have a strong R&D team,and we can develop and produce products according to the drawings or samples the customers offered.

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Industry Knowledge

The 4 circuit protection valve, also known as a four-channel protection valve, is an essential component in the air brake system of heavy-duty trucks. Its primary function is to regulate and protect the air pressure in four separate circuits within the braking system. Here are the key characteristics of a typical 4 circuit protection valve:
Four-channel design: The valve is equipped with four separate channels or ports, each dedicated to a specific circuit within the braking system. These circuits usually include the service brakes, parking brake, trailer brake, and emergency brake circuits.
Pressure regulation: The valve regulates the air pressure supplied to each circuit. It ensures that the pressure remains within the specified range, allowing for effective and reliable braking performance.
Pressure protection: In the event of a malfunction or pressure loss in one circuit, the 4 circuit protection valve isolates the affected circuit and prevents the pressure drop from affecting the other circuits. This characteristic helps maintain the overall functionality and safety of the braking system.
Quick response time: The valve is designed to respond rapidly to changes in pressure within the system. It ensures that the pressure adjustments occur swiftly to support efficient braking and prevent any delay or lag in the brake application.
Durability and reliability: Heavy-duty trucks operate in demanding conditions, so the 4 circuit protection valve is built to withstand vibrations, temperature variations, and harsh environments. It is made from robust materials to ensure long-lasting performance and reliability.
Maintenance and serviceability: The valve is designed for easy maintenance and service. It can be disassembled, inspected, and repaired as needed, allowing for efficient troubleshooting and minimizing downtime.
Compatibility: The 4 circuit protection valve is engineered to be compatible with the standard air brake systems used in heavy-duty trucks. It can be integrated into the existing braking system without requiring significant modifications.
Zhuji Weicheng Auto Parts Co., Ltd.

Zhuji Weicheng Auto Parts Company masters advanced technologies, and manufacture efficient and durable products for customers as the company's responsibility. Truck 4 Circuit Protection Valves Manufacturers in China