What is the maximum working pressure of the collector?

The rated working pressure is 0.6MPa, with a test pressure of 0.9MPa.

Is the solar vacuum tube made of borosilicate glass?

Yes, the solar vacuum tube material is Borosilicate Glass Tube 3.3.

Parabolic Trough Solar Collector

Name: Parabolic Trough Solar Collector
Brand: Shandong Longguang Tianxu Solar Energy Co., Ltd.
SKU: 1970687102

Shandong, ChinaShandong Longguang Tianxu Solar Energy Co., Ltd.

US$10.00-18.00

5 Meters

Product profile

Customization

Available

After-sales Service

Provided

Warranty

5 Years

Model NO.

18-1.8-1500

Condition

New

Type

Double Vacuum Heating Tube

Certification

ISO

Application

Water Heater, Air Conditioning System

Pipe Material

Glass

Pressurized

Origin

Weifang

Production Capacity

50000pieces/Year

Key features

Long Working Life: Designed for a working life of 20 years or more with stable performance.

Advanced Leak Testing: Applied advanced leaking test technology ensures the whole system works stably and reliably.

High Efficiency Heat Transfer: Effective heat energy transferring Aluminum fins and U pipe collectors achieve higher temperatures quickly.

Superior Insulation Quality: High and constant pressure polyurethane foaming technology ensures outstanding insulation.

Corrosion and Scaling Resistant: Closed copper pipes with circulation fluid prevent corrosion, leaking, scaling, and tube breakages.

Customizable Design: Optimal and innovative design allows collectors to integrate into different buildings.

Comprehensive Warranty: Provides a 5-year warranty covering mechanical defects for peace of mind.

Company profile

Shandong Longguang Tianxu Solar Energy Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2003-09-01 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShandong Longguang Tianxu Solar Energy Co., Ltd. is a China-based limited company established in 2002, with 406 employees and a large manufacturing site in Shandong. The supplier develops and manufactures solar water heaters, solar vacuum tubes, high-borosilicate glass tubes, heat pumps, photovoltaic products, and energy-storage systems. Evidence indicates substantial production infrastructure, including more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. It reports ISO9001:2015 and ISO14001:2015 certification, 72 R&D engineers, 50 quality-control staff, and cooperation involving Tsinghua-related organizations. Export activity is significant, with 71%–90% of sales reportedly from exports and markets including Southeast Asia and the Middle East. However, the provided information does not substantiate after-sales processes, customer case studies, customized manufacturing procedures, or financial reliability.

Supplier typeThe supplier is identified as a limited company based in Zhucheng, Weifang, Shandong, China, while one record categorizes it as a trade company. Its described activities and product range show substantial manufacturing involvement in solar thermal, glass, heat-pump, photovoltaic, and energy-storage products.

CertificationsThe supplier reports ISO9001:2015 and ISO14001:2015 certificates, along with other unspecified certifications. These explicitly support quality-management and environmental-management system credentials, although the unspecified certifications cannot be assessed further.

R&D capabilityThe supplier reports 72 R&D engineers, involvement with Beijing Tsinghua Industrial Development Institute and Beijing Tsinghua Solar Co., Ltd., advanced solar vacuum tube production lines, and work across solar heating, cooling, desalination, heat pumps, and photovoltaic systems. It also states that it drafted a national standard for 3.3 high-borosilicate glass, providing explicit evidence of R&D and technical-development capability.

Production capacityProduction capacity is supported by 406 employees, a 133,340 m² manufacturing plant, more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. The supplier also reports annual production of one million tons of high-borosilicate glass and 16 million solar vacuum tubes, plus lead times within 15 workdays in both off-peak and peak seasons.