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Help CenterCorrosion-Resistant Volute Spring, 304 Stainless Steel, 10-50mm OD, for Valve Actuators
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As a professional manufacturer with over 25 years of experience, Anping County Boli Hardware Wiremesh Products Factory (established 1998) is proud to offer our Corrosion-Resistant Volute Spring, 304 Stainless Steel, 10-50mm OD. Designed specifically for valve actuators, this spring combines superior corrosion resistance with precise dimensional control to ensure reliable performance in demanding environments. Our annual export value of US$5-10 million and worldwide market presence (including North America, Europe, Southeast Asia, and more) are testaments to the quality and trust we deliver.
This volute spring is manufactured from high-grade 304 stainless steel, providing excellent resistance to rust, chemicals, and moisture. The conical (volute) design allows for compact energy storage and smooth operation within valve actuators, making it an ideal choice for industries such as oil & gas, water treatment, chemical processing, and automation. With outer diameters ranging from 10mm to 50mm, we can customize dimensions, wire diameter, and load characteristics to meet your exact application requirements.
Below are the key technical specifications for our standard range:
| Parameter | Value / Range |
|---|---|
| Material | 304 Stainless Steel (AISI 304) |
| Outer Diameter (OD) | 10 mm – 50 mm (custom sizes available) |
| Wire Diameter | Customizable (typically 0.5 mm – 5 mm) |
| Coil Shape | Volute (conical) – reduces solid height, offers progressive spring rate |
| Surface Finish | Passivated, polished, or as per customer requirement |
| Load Capacity | Customizable – designed per your deflection and force needs |
Key Features and Benefits:
- Superior Corrosion Resistance: 304 stainless steel ensures long service life even in humid, chemical, or outdoor environments – no rust or pitting.
- Precise Dimensional Control: Outer diameter tolerance within ±0.1 mm for consistent fit in valve actuator assemblies.
- Volute (Conical) Design: Progressive spring rate provides smooth compression and reduces risk of buckling; ideal for limited space installations.
- High Durability: Excellent fatigue life due to quality material and controlled manufacturing process – tested for thousands of cycles.
- Customizable Options: We can adjust wire diameter, outer diameter, number of coils, free length, and end types (closed, open, ground) to match your actuator design.
- Cost-Effective Solution: As a direct manufacturer, we offer competitive pricing without compromising on quality – factory-direct savings.
- Global Shipping: Shipped from Tianjin, Qingdao, or Shanghai ports with reliable logistics partners to ensure timely delivery worldwide.
Our volute springs are used in a variety of valve actuators including pneumatic, electric, and hydraulic types. The conical shape allows the spring to nest partially within itself, reducing the overall compressed length – a critical advantage when space is tight. Whether you need a standard size or a fully custom spring, our engineering team can provide technical support and samples for validation.
Trust Our Expertise: Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer in the hardware and spring industry. With annual exports exceeding US$5 million and a diverse customer base spanning North America, Europe, Asia, Africa, and Oceania, we have the experience and capacity to handle large-volume orders and custom projects. Our production facility is equipped with advanced CNC spring coiling machines, heat treatment ovens, and precision testing equipment to ensure every spring meets your specifications.
We understand that valve actuator reliability is critical for your operations. That's why we offer rigorous quality control at every step – from raw material verification (304 stainless steel certificates available) to final dimensional inspection. We can also provide a Material Test Report or a PPAP (Production Part Approval Process) package upon request.
Ready to enhance your valve actuator performance? Contact us today for a quote or to discuss your custom spring requirements. We are committed to delivering high-quality, corrosion-resistant volute springs that keep your equipment running smoothly.
Frequently Asked Questions
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Q: What material is this volute spring made of?
A: It is made of 304 stainless steel (AISI 304), which offers excellent corrosion resistance and is suitable for most industrial environments. -
Q: Can you supply springs with outer diameters outside the 10-50mm range?
A: Yes, we can customize the outer diameter from 5mm up to 100mm or more based on your specific needs. Please provide your exact requirements. -
Q: Are these springs suitable for use in pneumatic valve actuators?
A: Absolutely. The volute design is commonly used in pneumatic actuators where space is limited and a progressive spring rate is desired. -
Q: Do you offer any surface treatment to improve corrosion resistance further?
A: We can provide passivation, electropolishing, or other surface finishes upon request. The standard surface is passivated to remove impurities and enhance the natural oxide layer. -
Q: What is the typical lead time for custom orders?
A: For custom sizes, lead time is usually 10-15 working days after design confirmation. For standard sizes, we may have stock available – please inquire. -
Q: How do you package the springs for export?
A: We use standard export packaging: individual springs wrapped in oil paper, then packed in cartons, and finally on pallets for secure shipping. Custom packaging can be arranged. -
Q: Can you provide a sample before mass production?
A: Yes, samples are available. We can produce a sample based on your drawing or specifications. Sample cost is negotiable and can be deducted from the first order. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 500 pieces. For custom sizes, MOQ may vary depending on complexity. We are flexible and can discuss smaller quantities for trial orders.
* All information provided is based on our standard manufacturing capabilities. For specific requirements, please contact our sales team for a tailored solution.
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