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Help CenterStainless Steel Ring for Mechanical Seals, 316L, 25mm ID, 5mm Wide, Industrial Grade, Wholesale Price
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Welcome to Dongguan HonHo Jewelry Co., Ltd. – a certified ISO9001 manufacturer with over a decade of precision metalworking experience. Our Stainless Steel Ring for Mechanical Seals (316L, 25mm ID, 5mm Wide) is engineered to provide reliable sealing performance in demanding industrial applications. Manufactured in our 3,000-5,000 m² facility, each ring undergoes strict quality control to ensure dimensional accuracy and corrosion resistance. Whether you need replacement seal rings for pumps, mixers, or compressors, our wholesale pricing makes this component a cost-effective choice for maintenance and OEM projects.
This industrial-grade ring is crafted from premium 316L stainless steel – a low-carbon variant known for superior resistance to chlorides, acids, and high-temperature environments. With a precise 25mm inner diameter and 5mm width, it fits a wide range of standard mechanical seal assemblies. Below we detail its technical specifications, advantages, and how it benefits your operations.
Key Features & Technical Specifications
- Material: 316L Stainless Steel (UNS S31603) – excellent pitting and crevice corrosion resistance.
- Dimensions: Inner Diameter 25mm ±0.05mm; Width 5mm ±0.05mm; Outer Diameter 35mm (calculated).
- Surface Finish: Available in polished or matte finish; custom surface treatments upon request.
- Hardness: Annealed condition (typically HRB 85 max) for good machinability and formability.
- Application Temperature: Up to 450°C (842°F) in oxidizing environments; suitable for steam, water, oils, and mild chemicals.
- Compatibility: Works with elastomers, PTFE, and carbon-graphite mating faces.
- Packaging: Bulk pack (100/500/1000 pcs per bag) with anti-rust paper; export cartons.
| Parameter | Value |
|---|---|
| Inner Diameter (ID) | 25 mm |
| Width | 5 mm |
| Outer Diameter (OD) | 35 mm (standard, customizable) |
| Material Grade | AISI 316L (ASTM A276) |
| Surface Roughness | Ra ≤ 0.8 μm (customizable to Ra ≤ 0.4 μm) |
| Tolerance | ±0.05 mm on ID, ±0.1 mm on OD |
| Weight per piece (approx.) | 12 grams |
Advantages & Customer Benefits
- Corrosion Resistance: 316L withstands aggressive media such as seawater, chlorides, and acids – extending seal life in harsh environments.
- Dimensional Precision: CNC machined to tight tolerances ensures a snug fit, reducing vibration and leakage.
- Industrial Grade: Suitable for continuous duty in pumps, compressors, agitators, and rotary equipment.
- Wholesale Pricing: Factory-direct supply eliminates middlemen, offering you competitive rates for volume orders.
- Customizable: We can modify ID, width, outer profile, or add grooves per your drawing – minimum order quantity negotiable.
- Easy to Install: No special tools required; simply slide into the seal housing and secure.
Why Choose Dongguan HonHo Jewelry Co., Ltd.?
Established in 2010, we have grown from a small workshop into a ISO9001-certified manufacturer with 51-100 skilled workers and an annual export value of US$2.5-5 million. Our factory spans over 3,000-5,000 square meters, equipped with advanced CNC lathes, grinding machines, and inspection instruments. We ship globally through Shenzhen, Dongguan, and Guangzhou ports, serving markets across North America, Europe, Southeast Asia, the Middle East, and more. Every batch of rings is 100% dimensionally inspected and randomly tested for corrosion resistance. With our experience in precision metal parts, you get consistent quality and reliable supply.
Ready to optimize your mechanical seal performance? Contact us today for a quote on this 316L stainless steel ring or to discuss custom requirements. We offer free samples (shipping cost applies) for qualified buyers. Our team responds within 24 hours to ensure your project stays on schedule. Benefit from our wholesale price, fast turnaround, and dedicated support – buy direct from the manufacturer.
Frequently Asked Questions (FAQ)
1. What is the material composition of your ring?
It is made of 316L stainless steel, which contains 16-18% chromium, 10-14% nickel, and 2-3% molybdenum. The low carbon content (
2. Can I use this ring for food-grade applications?
316L is generally accepted in food processing where non-corrosive residues are required. However, please check local regulations – we recommend a polished surface finish to minimize bacterial growth.
3. What is the minimum order quantity (MOQ)?
For standard sizes (25mm ID x 5mm wide), the MOQ is 500 pieces. For custom dimensions or special finishes, the MOQ is 1,000 pieces. Smaller trial orders may be accommodated upon request.
4. Do you provide samples before bulk order?
Yes, we offer a limited number of samples (up to 5 pieces) free of charge. The buyer pays for shipping. Please contact our sales team with your company details and intended application.
5. How long does production take?
Standard production takes 7-10 working days after order confirmation. Custom orders may require 15-20 working days, depending on complexity.
6. Are these rings compatible with all mechanical seal brands?
Our rings are designed to fit standard seal configurations with 25mm shaft diameter. For specific brands (e.g., John Crane, EagleBurgmann, Flowserve), we recommend verifying the exact seat dimensions. We can also manufacture to match your original part drawing.
7. What packaging do you use for export?
Rings are packed in polyethylene bags with desiccant and anti-rust paper, then placed in sturdy corrugated cartons. For larger quantities, we use plywood pallets to prevent damage during ocean freight.
8. Can you laser engrave or mark the rings?
Yes, we offer laser marking of part numbers, logos, or specifications. Please specify when placing the order. Additional charges may apply.
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