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Help CenterShanghai Dongfang DFSS200-250/4 Wear Ring for DFSS Centrifugal Pump
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Jiangsu Manqi Machinery Co., Ltd., a reliable manufacturer based in Suzhou, Jiangsu, China, proudly presents the Shanghai Dongfang DFSS200-250/4 Wear Ring, a critical spare part designed to enhance the durability and efficiency of DFSS series centrifugal pumps. As a factory with over 10,000 square meters of production space and a dedicated team of 11-50 skilled professionals, we ensure each wear ring meets rigorous quality standards. This wear ring acts as a sacrificial component, effectively reducing friction between the impeller and pump casing, thereby extending the pump's service life and maintaining high hydraulic performance. Whether you are managing water treatment, irrigation, or industrial fluid transfer systems, this wear ring is engineered to deliver consistent, cost-effective operation.
Product Features & Technical Specifications
Precision Fit: Manufactured to exact OEM specifications for the DFSS200-250/4 pump model, ensuring seamless installation and minimal vibration.
Wear-Resistant Material: Available in high-grade bronze or cast iron options (customizable per request), providing excellent resistance to abrasion and corrosion.
Optimized Clearance: Tightly controlled inner and outer diameters maintain optimal gap between impeller and casing, reducing leakage and improving volumetric efficiency.
Cost-Effective Maintenance: By replacing the wear ring instead of the entire pump, you save on downtime and replacement costs — a smart choice for long-term pump health.
Versatile Application: Suitable for clean water, wastewater, cooling water, and light slurry services across industries like municipal water supply, HVAC, and agriculture.
Customizable Options: Hardness, coating, and dimensional adjustments are available upon request to match specific operating conditions.
| Parameter | Specification |
| Applicable Pump Model | DFSS200-250/4 |
| Material Options | Bronze, Cast Iron, Stainless Steel (on request) |
| Outer Diameter (OD) | Custom; typical range 200-300 mm |
| Inner Diameter (ID) | Custom; matched to impeller diameter |
| Thickness | Approx. 10-20 mm (depending on design) |
| Surface Hardness | HB 150-250 (customizable) |
Each wear ring is machined on advanced CNC equipment, followed by strict dimensional inspection to ensure concentricity and surface finish. The result is a product that not only fits perfectly but also minimizes frictional losses, boosting pump efficiency by up to 3-5% compared to worn or mismatched rings. For customers operating in harsh environments, we recommend our hardened bronze variant, which offers superior resistance to sand and grit particles.
Why Choose Jiangsu Manqi Machinery?
Manufacturing Excellence: With a factory spanning 10,000-30,000 square meters, we have the capacity to handle large orders and maintain consistent quality.
Experienced Team: Our 11-50 employees include skilled engineers and technicians dedicated to continuous improvement and customer satisfaction.
Global Reach: We export regularly to Eastern Europe, Southeast Asia, Africa, and South Asia, ensuring reliable logistics via the Port of Shanghai.
Customer-Centric Service: We offer flexible quantities, custom dimensions, and prompt after-sales support. Samples are available for evaluation before bulk orders.
Trust in our 5+ years of industry experience (since 2017) to deliver parts that keep your pumps running smoothly. Our wear rings have been tested in various field conditions and consistently receive positive feedback for their durability and precision. When you choose Jiangsu Manqi Machinery, you gain a partner committed to reducing your operating costs and extending equipment life.
Ready to optimize your DFSS pump performance? Contact us today for a quote or free consultation. We look forward to supporting your projects with reliable, affordable solutions.
Frequently Asked Questions
Q1: What material is the DFSS200-250/4 wear ring made of?
A: Standard material is bronze, but we also offer cast iron and stainless steel options. The default is a high-quality bronze alloy with good wear resistance. If you have specific requirements, we can customize the material.
Q2: Can I use this wear ring on other pump models?
A: This wear ring is specifically designed for the DFSS200-250/4 centrifugal pump. Using it on other models may cause improper fit or performance issues. However, we can manufacture custom sizes for other DFSS variants upon request.
Q3: How do I know the exact dimensions I need?
A: You can measure the inner and outer diameters of your old wear ring, or refer to your pump’s technical drawing. If you provide the pump model and impeller dimensions, we can match the ring accordingly. We also offer sample fitting service for first-time buyers.
Q4: What is the typical lifespan of this wear ring?
A: Lifespan varies with operating conditions (fluid type, temperature, presence of abrasives). Under normal clean water conditions, it can last 1-3 years. For severe environments, we recommend our hardened bronze option for extended service life.
Q5: Do you provide a warranty?
A: Yes, we offer a standard warranty against manufacturing defects. Specific warranty terms can be discussed during order confirmation. We stand behind the quality of our products.
Q6: Can you ship to my country quickly?
A: We ship from the Port of Shanghai and have experience exporting to Eastern Europe, Southeast Asia, Africa, and South Asia. Typical delivery time is 15-30 days after order confirmation, depending on quantity and shipping method. Express shipping is also available.
Q7: Is there a minimum order quantity?
A: We accept small orders starting from 1 piece for sample or trial purposes. For bulk orders (100+ pieces), we can offer better pricing. Contact us for a tailored quote.
Q8: How do I install the wear ring correctly?
A: Installation is straightforward: clean the pump casing and impeller area, press or slide the wear ring into place, and ensure it is seated evenly. For detailed instructions, we can provide a PDF guide with your shipment. Proper installation ensures optimal clearance and performance.
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