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Depending on order quantity, we provide free spare parts or controllers for maintenance and offer technical training.

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We have 15 years of experience, and many pump suppliers from China and overseas use our controllers.

0.37kw-4kw Single Phase Double Blower Pump Control System L922-B

Name: 0.37kw-4kw Single Phase Double Blower Pump Control System L922-B
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 733981442

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

Negotiable

10 Pieces

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

L922-B

Mathematical Model

Linear

Signal

Continuous

Function

Automatic Control, Protection, Monitoring

Certification

ISO: 9001, CE

Condition

New

Customized

Material

ABS

Input Voltage

AC220V-240V

Phase

Single Phase

Rated Output Power

0.37kw-2.2kw 3kw- 4kw

Frequency

50Hz/60Hz

Protection Grade

IP54

Transport Package

Box+Paper Carton

Specification

Big size

Trademark

Leading or neutral

Origin

China

HS Code

9032899090

Production Capacity

60, 000 Sets Per Month

Key features

Dual Pump Control: Intelligent control for duplex pumps with automatic alternation and malfunction switching.

Comprehensive Protection: Features overload, stall, dry run, under/over voltage, and repeat start protection.

Real-Time Monitoring: LCD screen displays dynamic pressure, running status, and last five fault records.

Customizable Design: Offers customized input voltage, power range, and frequency options for specific needs.

Communication Interface: Includes RS485 port for remote monitoring and dry contact output for external signals.

IP54 Protection Grade: Robust IP54 rating ensures safe operation in various industrial and outdoor environments.

ISO Certified Quality: Manufacturing follows ISO standards with strict testing from raw materials to finished product.

Long Service Life: Designed for an operational lifespan of 8 years with reliable performance.

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: ≤5.15hTerms 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.