Could you outline your after-sales service policy?

Based on the quantity ordered, we provide complimentary spare parts or controllers for maintenance or replacement. Additionally, we offer in-depth technical training to ensure optimal usage.

How can I be assured of your trustworthiness?

With a robust 15-year history in pump control panel manufacturing and sales, we are trusted by numerous pump suppliers in China and internationally for our reliable controllers, safeguarding their pumps and motors.

Where is your location and how can I travel there?

Traveling from Guangzhou to Changsha is quick and convenient: 1 hour by air or 2.5 hours via high-speed train. From Shanghai to Changsha, you can choose a 1.5-hour flight or a scenic 5-hour high-speed train journey. Travel from Beijing to Changsha is smooth and efficient, taking just 2.5 hours by air. Journey from Hong Kong to Changsha is a breeze, with a flight time of around 2 hours.

L522 Intelligent Duplex Water Pump Control Box Dual Pump Automatic Controller

Name: L522 Intelligent Duplex Water Pump Control Box Dual Pump Automatic Controller
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 2224601115

Hunan, ChinaHunan Leading Science & Technology Development Co., Ltd.

US$85.90

5-99 Pieces

US$79.90

100+ Pieces

Sample price:US$78.00/piece.Request sample

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

L522

Mathematical Model

Non-Linear

Signal

Continuous

Function

Automatic Control

Certification

Condition

New

Customized

Material

ABS

Qty of Controlled Pump

Duplex Pump

Rated Input Voltage

AC220V/AC230V Single Phase

Rated Output Power

0.37kw-2.2kw (0.5HP-3HP) 3-4kw(4HP-5.5HP)

Transport Package

Paper Carton

Specification

6 pcs/carton

Trademark

Neutral

Origin

China

HS Code

9032899090

Production Capacity

100000PCS/Year

Key features

Probe-Free Dry Run Protection: Automatically halts operation during water shortages without requiring float switches or liquid probes.

Duplex Pump Auto-Alternation: Effortlessly controls double pumps, automatically alternating between main and standby units for optimal efficiency.

Comprehensive Fault Diagnostics: Displays accumulated running time and the last five pump fault records for thorough maintenance tracking.

Robust Electrical Protection: Protects against over/under voltage, open phase, overcurrent, shaft rust, and rapid cycling.

Customizable OEM/ODM Service: Dedicated engineering team supports OEM and ODM endeavors with custom configurations.

IP54 Durability Rating: Superior durability and safety with IP 54 grade protection against dust and water ingress.

Versatile Application Control: Supports water supply, boosting, and drainage applications via liquid level or pressure settings.

Real-Time LCD Monitoring: Provides real-time pump running information and status updates on an intuitive LCD display.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Hunan Leading Science & Technology Development Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading Company, OtherExport Year: 2005-06-08Nearest Port: Ningbo, Shanghai, GuangzhouAverage Response Time: ≤6.91hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR

AI-Powered supplier vetting

SummaryThe supplier is identified as Hunan Leading Technology Development Co., Ltd., a professional technology provider focused since 2001 on intelligent pump controller production, R&D, global sales, and after-sales service. It provides 3D software design, ODM/OEM, and multiple customization options, supported by documented inspection, corrective-action, complaint-handling, quality-assurance, and traceability procedures. Export experience is stated at 18 years, with exports representing 21%–30% of sales, and standard peak- and off-season lead times within 15 working days. However, the supplier has no available SDK, reported no new products in the past year, lacks overseas agents, branches, warehouses, and showrooms, and has no valid manufacturing-capacity contract with its factory and related subcontractors. Evidence is insufficient for certification holding, financial credibility, and customer cases.

Supplier typeThe supplier is Hunan Leading Technology Development Co., Ltd., described as a professional technology supplier focused on pump control and protection solutions, including production, R&D, global sales, and after-sales service. Its company type is recorded as “Combined,” but the exact legal classification is not further explained.

After-Sales capabilityThe company states that it provides after-sales service, maintains in-stock service capacity, and has documented procedures and records for complaint handling, corrective and preventive actions, quality assurance, and traceability. However, it has no overseas agents or branches, no overseas warehouse, no overseas showroom, and reports zero countries with overseas services, limiting demonstrated international after-sales coverage.

R&D capabilityThe supplier is identified as a professional R&D technology supplier and provides 3D software design and ODM services. Nevertheless, it has no available SDK and reported no new products during the past year, so the evidence supports design and development capability but indicates limited recent product innovation.

Production capacityThe supplier reports production operations, documented finished-product inspection procedures, in-stock capability, 18 years of export experience, and lead times within 15 working days in both peak and off seasons. A material control weakness is that the factory and related subcontractors have no valid manufacturing-capacity contract; overseas warehousing is also unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design and ODM services. It also reports OEM capability for well-known brands, providing direct evidence of broad customization and design-manufacturing support.

Client casesThe supplier states that it provides OEM services for popular brands, which indicates experience serving recognized-brand customers. No specific customer names, projects, products, or verifiable case details are provided, so the depth and quality of customer cases cannot be fully assessed.

Product Q&A

Q:Can I obtain samples to evaluate the product?

We are delighted to offer you samples for testing! Please connect with us for further details on how we can assist you in experiencing our products firsthand.

Q:What is the expected delivery timeframe?

For standard pump control panels, you can expect a swift delivery in approximately 7 working days. For non-standard configurations, the delivery period typically spans 15-20 days.

Q:Is it possible to engage in OEM or ODM services?

Absolutely! Our dedicated engineering team is fully equipped to support both OEM and ODM endeavors. Please note, there is a required minimum order quantity.

Q:How does the factory ensure rigorous quality control?

Adhering strictly to ISO standards, we meticulously oversee product quality from the selection of raw materials to the final assembly. Every control panel undergoes full assembly and stringent testing before packing and shipment.

Q:What is the expected lifespan of the control panel?

Our control panels are engineered to deliver a reliable operational lifespan of approximately 8 years.