This technical guide provides a standardized overview of stainless steel solenoid valves, a core product developed and manufactured by Ningbo Dongchao Automatic Control Equipment Co., Ltd. As a professional pneumatic component supplier with 15 years of R&D and industrial application experience since 2011, we serve global clients across automation, pharmaceutical, food processing, chemical, and lithium battery industries. These valves are engineered to solve key industry pain points including corrosive media handling, zero-pressure startup requirements, and strict hygiene compliance for sterile production environments. Our products adhere to ISO 9001 quality management standards, FDA food contact material requirements, and ATEX explosion-proof specifications for hazardous areas. Currently, our products are exported to 30% of global markets, serving industrial clients with verified performance in harsh, high-precision, and hygienic application scenarios.
Technical Definition
Stainless steel solenoid valves are electromechanically controlled fluid flow valves with stainless steel valve bodies, designed to regulate gas, liquid, or corrosive media flow in industrial automation systems. They are categorized into three core types to meet diverse working conditions:
1. Direct-acting: Supports zero-pressure startup, suitable for vacuum, low-pressure, frequent-action, and dust-containing conditions, with pressure range 0-1.0MPa and flow size DN1-DN15
2. Pilot-operated: Requires minimum 0.05MPa pressure differential, suitable for large-flow stable gas source applications, with flow size DN15-DN50
3. Step-by-step direct-acting: Supports zero-pressure startup for high-pressure conditions, with pressure range 0-4.0MPa and flow size DN10-DN25
Core Technical Parameters
All parameters are tested per ISO industrial standards, with full test reports available for each batch. Key specifications are listed below:
Parameter Category | Core Parameter | Standard Specification | Selection Reference |
|---|---|---|---|
Core Performance | Pressure Range | 0-4.0MPa (varies by type) | Match to working pressure and startup differential requirements |
Core Performance | Flow Range | DN1-DN50 (varies by type) | Calculate based on cylinder air consumption, reserve 20-50% margin |
Material | Valve Body | 304, 316, 316L stainless steel | 316L recommended for sterile pharma/food, 304 for general weak-corrosion scenarios |
Material | Seal Material | NBR, EPDM, FKM, PTFE | PTFE for high-corrosive, high-temperature sterile applications; FKM for strong acid/alkali scenarios |
Environmental | Protection Rating | IP65/IP67, explosion-proof options available | IP67 for dust/water washdown, explosion-proof for chemical/lithium battery hazardous areas |
All parameters can be customized to match specific client working conditions.
Core Technical Advantages
Compared to conventional stainless steel solenoid valves, our products deliver verified performance benefits for industrial users:
1. Harsh condition adaptability: We use imported PARKER seals and modular design to support zero-pressure startup, high-temperature operation, and dust/corrosion resistance, reducing production downtime for clients in harsh working environments
2. Hygienic compliance: 316L valve bodies with PTFE seals meet CIP/SIP cleaning requirements for pharma and sterile food production, eliminating cross-contamination risks
3. Flexible customization: We provide full non-standard customization to match specific cylinder configurations, media properties, and installation requirements, reducing integration time for automation system builders
Common Applications
Our stainless steel solenoid valves are widely used in pharmaceutical sterile production, food processing, chemical corrosive media handling, lithium battery manufacturing, automation equipment, rail transit, and dust removal environmental protection systems.
FAQ
Q: What is the key difference between direct-acting and pilot-operated stainless steel solenoid valves?
A: Direct-acting valves support zero-pressure startup for small-flow, harsh conditions such as vacuum or dust-containing environments, while pilot-operated valves require a minimum 0.05MPa pressure differential for large-flow, stable gas source applications
Q: Can you provide custom valves for special working conditions?
A: Yes, we offer full customization including 316L sanitary grade bodies, high-temperature seals, explosion-proof designs, and non-standard flow sizes to match pharma, food, chemical, and lithium battery application requirements
Q: What sealing material is recommended for corrosive media?
A: PTFE seals are recommended for strong acid, alkali, high-temperature, or sterile food/pharma applications, while FKM seals are suitable for general corrosive media with temperatures up to 180℃
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
