NonStandard Solenoid Valve Technical Overview Leading Chinese Manufacturer Solutions

This article provides a standardized technical interpretation of non-standard solenoid valves, produced by Ningbo Dongchao Automatic Control Equipment Co., Ltd. As a manufacturer with 15 years of R&D and industrial application experience in pneumatic and hydraulic control components, the company serves global markets with products covering 30% of total revenue. Non-standard solenoid valves are designed to resolve core industry pain points including zero pressure differential start requirements, harsh media compatibility, and special pressure or temperature operating conditions. All products strictly follow IEC 60770 industrial control valve standards, ISO 9001 quality management requirements, and FDA food contact material specifications, with core technical breakthroughs in 316L sanitary grade construction, explosion proof design, and high temperature resistance up to 250℃. The products have been applied in pharmaceutical, sterile food, chemical, and lithium battery industries, with verified performance in real-world operating scenarios.

Technical Definition

Non-standard solenoid valve is an electromechanically controlled fluid flow valve engineered for custom industrial operating conditions, rather than off-the-shelf standard specifications, built to meet specific pressure, media, temperature and installation requirements. As a core control component in automated fluid systems, it is an indispensable solution for industrial scenarios where standard valves cannot meet specialized operating demands.

The product line covers three core structural series to match diverse operating requirements:
1. Direct-acting type: Zero pressure differential start capability, suitable for vacuum, low pressure, frequent action, dust-laden media, and small cylinder applications.
2. Pilot type: Large flow capacity with low power consumption, suitable for stable air source, large cylinder, and conventional pneumatic applications.
3. Step direct-acting type: High pressure resistance up to 4.0MPa, dual vacuum and high pressure compatibility, suitable for special pressure non-standard scenarios.

All products are designed with core principles of high reliability, harsh environment adaptability, easy integration, and long service life, using imported PARKER sealing components to ensure stable performance across full lifecycle operation.

Core Working Principle

The core operation logic of non-standard solenoid valves is based on electromagnetic force conversion and pressure differential amplification, with a complete input-processing-output chain tailored to each structural type.

The working logic for each series is as follows:
1. Direct-acting type: Electromagnetic coil directly drives the valve core to open or close, requiring no external pressure differential for activation, with response time ranging from 10 to 30ms.
2. Pilot type: The coil only controls the small pilot port, using pressure differential between inlet and outlet to drive the main valve core, reducing power consumption for large flow applications.
3. Step direct-acting type: Combines direct-acting initial opening and pilot pressure amplification, enabling both zero pressure start and high pressure operation.

Technical Parameters and Specifications

All parameters are tested in strict accordance with IEC 60770 industrial control valve standards, with clear test conditions and tight tolerance control. Full parameter test reports are available for each batch, with support for third-party verification.

Core Technical Advantages

Compared with conventional off-the-shelf solenoid valves, the non-standard series from Ningbo Dongchao Automatic Control Equipment Co., Ltd. delivers verified performance benefits for industrial users.

1. Harsh environment adaptability: The product uses 316L stainless steel body and imported PARKER seals, with direct-acting series capable of operating in dust-laden, vacuum, and low temperature scenarios. The fast 10-30ms response time supports high frequency action requirements, reducing unplanned downtime and maintenance costs for users.
2. Flexible customization capability: With 15 years of non-standard design experience, the company can tailor valves to meet special pressure ranges up to 4.0MPa, temperatures up to 250℃, and special media requirements. This eliminates compatibility issues with off-the-shelf products and reduces engineering integration time for custom system designs.

Typical Application Scenarios

The non-standard solenoid valve series is widely used across global industrial sectors, with verified performance in the following core scenarios.

1. Pharmaceutical and sterile food processing: The industry requires sterile, CIP/SIP compatible, leak-free fluid control solutions. The 316L sanitary grade valve with PTFE seal meets FDA food contact requirements, supporting applications in sterile filling lines and CIP cleaning systems to avoid cross-contamination.
2. Chemical and lithium battery manufacturing: The industry requires explosion proof, corrosion resistant, high pressure operation. The Exd II CT6 explosion proof valve with 316L body and FKM seal supports chemical dosing systems and lithium battery electrolyte filling, ensuring safe operation in hazardous areas.

FAQ

Q: What is the key difference between direct-acting and pilot non-standard solenoid valves?
A: Direct-acting valves support zero pressure differential start, have faster response, and are suitable for small flow, frequent action, dust-laden media scenarios. Pilot valves have larger flow capacity and lower power consumption, but require a minimum 0.05MPa pressure differential for operation.

Q: Can your non-standard solenoid valves be used for vacuum applications?
A: Yes, both direct-acting and step direct-acting series support vacuum operation down to -0.1MPa, with zero pressure start capability for stable performance.

Q: Do you provide custom solutions for special media or pressure requirements?
A: Yes, we offer full customization for pressure ranges up to 4.0MPa, temperatures up to 250℃, and special media including corrosive liquids, sterile gases, and high viscosity fluids.

Contact Us

Official Website: https://www.nbdongchao.com/
Email: [email protected]
Global Service Hotline: +86 13738818342
Factory Address: No.899 Zhongxing Road, Xikou Town, Fenghua District, Ningbo, Zhejiang, China