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Help CenterShanghai Kaiquan KQDP50-20-28 Mechanical Seal Vertical Pump Accessories
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Professional Mechanical Seal for Shanghai Kaiquan KQDP50-20-28 Vertical Pump
As a trusted manufacturer based in Suzhou, Jiangsu, China, Jiangsu Manqi Machinery Co., Ltd. specializes in producing high-quality pump accessories that meet the rigorous demands of industrial applications. Our KQDP50-20-28 Mechanical Seal is engineered specifically for Shanghai Kaiquan vertical multistage pumps, offering reliable leakage prevention and extended service life. With a factory spanning 10,000-30,000 square meters and a dedicated team of 11-50 skilled professionals, we ensure each seal undergoes strict quality control to deliver consistent performance. Whether you require replacement parts for water treatment systems, HVAC units, or general fluid transfer, this mechanical seal provides a cost-effective solution without compromising on durability.
Key Features & Technical Specifications
Precision Engineering: Designed to match the exact dimensions of Shanghai Kaiquan KQDP50-20-28 pump shaft and housing, ensuring a perfect fit and easy installation.
High-Quality Materials: Available in various material combinations (carbon vs. silicon carbide, silicon carbide vs. silicon carbide, etc.) to suit different fluid types and operating conditions. Material options are customizable upon request.
Leak-Free Operation: Advanced seal face design minimizes leakage and reduces maintenance downtime, improving overall system efficiency.
Versatile Compatibility: Ideal for use in clean water, wastewater, light chemical solutions, and other non-aggressive fluids commonly handled by vertical pumps.
Durable Construction: Robust spring and elastomer components withstand pressure fluctuations and temperature variations (typical range: -20°C to +120°C, depending on material selection).
Quick Replacement: Supplied as a complete set (rotary and stationary faces, O-rings, springs, etc.) for hassle-free field replacement.
| Parameter | Specification |
| Model | KQDP50-20-28 |
| Shaft Diameter Range | Compatible with KQDP50-20-28 pump shaft (recommended to verify before ordering) |
| Working Pressure | Up to 1.6 MPa (depending on material configuration) |
| Temperature Range | -20°C to +120°C (standard); higher temperature options available |
| Seal Face Material | Carbon / Silicon Carbide / Tungsten Carbide (customizable) |
| Elastomer Material | NBR / EPDM / Viton (optional) |
| Spring Type | Single spring or multi-spring (depending on design) |
| Application | Water supply, booster systems, irrigation, industrial circulation |
Customer Benefits
Cost Savings: Direct replacement reduces expensive pump overhaul costs; extended service life lowers frequency of replacement.
Energy Efficiency: Minimized friction and leakage contribute to stable pump performance, reducing energy consumption.
Easy Maintenance: Standardized design enables quick installation by maintenance technicians without special tools.
Reliable Supply: As a manufacturer with annual export value below US$1 million, we focus on serving small to medium-sized buyers with consistent quality and competitive pricing.
Why Choose Jiangsu Manqi Machinery?
Established in 2017, Jiangsu Manqi Machinery Co., Ltd. has grown into a reliable supplier of pump accessories for markets in Eastern Europe, Southeast Asia, Africa, and South Asia. Our factory in Suzhou covers an area of 10,000-30,000 square meters, equipped with advanced production lines and testing facilities. We maintain strict quality control from raw material inspection to final packaging. Our team of 11-50 experienced workers ensures each order is handled with care. We ship from the Port of Shanghai, offering timely delivery to global destinations. By choosing our KQDP50-20-28 mechanical seal, you benefit from a product that undergoes rigorous performance testing, backed by our commitment to customer satisfaction. We encourage you to contact us for a quote or to discuss your specific requirements. Let us be your trusted partner in pump maintenance solutions.
Frequently Asked Questions
Q: Is this mechanical seal a direct replacement for the original Shanghai Kaiquan part?
A: Yes, it is designed to match the dimensions and specifications of the original KQDP50-20-28 pump seal. We recommend verifying the shaft diameter and housing dimensions before ordering to ensure compatibility.Q: What materials are available for the seal faces?
A: We offer carbon, silicon carbide, and tungsten carbide combinations. The standard choice is carbon vs. silicon carbide for clean water. For abrasive or chemical fluids, we can customize the material upon request.Q: Does the seal set include all necessary components (O-rings, springs, etc.)?
A: Yes, each set comes with the rotary and stationary seal faces, O-rings, springs, and other required hardware. It is a complete replacement kit for easy installation.Q: What is the typical lead time for this product?
A: For standard orders, lead time is usually 7-15 working days after confirmation. For customized materials or large quantities, please inquire for a specific schedule.Q: Can this seal be used for hot water applications?
A: Yes, depending on the elastomer and face material selected. High-temperature versions (up to 120°C or more) are available. Please specify your operating temperature when ordering.Q: Do you offer any warranty or after-sales support?
A: We provide a standard warranty period (typically 12 months) against manufacturing defects. Our team is available to assist with installation guidance and troubleshooting.Q: What is the minimum order quantity (MOQ)?
A: For this model, the MOQ is 1 piece. However, bulk orders are welcome to enjoy better pricing.Q: How should I store the seal before installation?
A: Store in a cool, dry place away from direct sunlight and extreme temperatures. Keep the packaging sealed to prevent contamination.
* All specifications are subject to change without notice. Please confirm details with our sales team before placing an order. Jiangsu Manqi Machinery Co., Ltd. reserves the right of final interpretation.
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