Longzhida Smart Instruments and Meters
Longzhida Smart Instruments and Meters
Longzhida Smart Instruments and Meters

Hot key words：Intelligent mixer, Faucet sensor faucet

ss

Software system

Chengde longzhida Intelligent Instrument Technology Co., Ltd. (formerly Xinlong Electronics) is a modern high-tech enterprise integrating energy-saving and water-saving product production, software development, product and service solution integration and information service. It is one of the 14 key enterprises in Hebei Province.

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Water Meter Series

Water Meter series

Accessories Series

Accessories series

Smart mixing faucet device

Intelligent water mixer

Non-negative-pressure water supply equipment

No negative pressure

Induction Product Series

Induction product series

PE Pipe Series

PE pipe series

Longzhida· Product

Years of industry experience and reliable quality

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Wireless remote transmission

Ultrasonic heat meter

Ultrasonic heat meter

Photoelectric direct reading water meter

Photoelectric direct reading water meter

photoelectric 40

photoelectric 40

Large-caliber IC card water meter

Large-caliber IC card water meter

Chengde longzhida

Intelligent instrument

Set production of water meters, wireless remote water meters, heat meters, ultrasonic heat meters, intelligent water mixer, non negative pressure water supply equipment, time area on-off method, PE pipe manufacturing, software development, product integration, information services as one of the modern high-tech enterprises.

It is one of the 14 key enterprises in Hebei Province.

Chengde longzhida is mainly committed to the R & D, production and sales of energy-saving and water-saving intelligent control and data transmission. The product has high technical content, simple and reliable use, remarkable energy-saving and water-saving effect, and is highly praised by hundreds of schools and thousands of users all over the country.

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Food grade material, health and environmental protection

304 steel is adopted, meeting the food hygiene level. It is safe, non-toxic and no over standard release.

Energy saving, environmental protection and electricity saving

Compared with similar products, water-saving rate can reach 30% - 45%, more power saving, saving operating costs for you.

The patented product has been used steadily for 20 years

Won 1 invention and 6 utility model patents (patent number: ZL 99104660.9) with small volume and simple installation.

It is superior to the technical indexes of similar products

Working pressure 0.03-1.0mpa, temperature control accuracy + 0.5 ° C, hot water temperature range 40 ° c-95 ° C, temperature regulation range 21 ° c-60c, cold and hot water pressure difference 0.03-1.0mpa, power supply supports 24 V low voltage power supply, automatic descaling function and abnormal warning function.

Longzhida · Core advantage

Years of industry experience and reliable quality

01

Brand strength

20 years of strong precipitation

◆ Set production, research and development, sales in the body of modern enterprises

◆ With more than 20 years of industry experience in technology and marketing team

◆ We have a complete and scientific quality management system and perfect testing equipment

◆ Participate in the compilation of the standard for urban water saving appliances

Brand Strength
Technologically advanced
02

Modern techniques

Professional R & D team and technical support team

◆ To provide professional pre-sale, sale, after-sales service

◆ Can provide drawing analysis services and guidance suggestions

◆ Free installation and debugging on site

03

Quick delivery

Mass stock, factory direct supply

◆ Direct supply from manufacturers, eliminate the price difference of middlemen, and greatly benefit customers

◆ Fast delivery, standing stock of more than 500 units

◆ Complete specifications, can meet 99% of customer needs

Fast shipping
Service Guarantee
04

Service guarantee

Worry free after sales, intimate service

◆ On site installation, debugging and tool use, lifelong maintenance

◆ Provide assistance and installation guidance during construction

◆ Close after sales team, 7x24 hours online quick response

Longzhida – Honor

Years of industry experience and reliable quality

Honor

Honor

Honor

Honor

Honor

Honor

Honor

Honor

Pay attention to the four elements

Chengde longzhida teaches you to choose the right manufacturer

Is the product quality good or not?

Is the product quality good

Food grade material, health and environmental protection

304 steel is adopted, meeting the food hygiene level. It is safe, non-toxic and no over standard release.

Which customers have we served?

What customers have you served

Energy saving, environmental protection and electricity saving

Compared with similar products, water-saving rate can reach 30% - 45%, more power saving, saving operating costs for you.

Is the product quality good or not?

Strong strength of manufacturers

The patented product has been used steadily for 20 years

Won 1 invention and 6 utility model patents (patent number: ZL 99104660.9) with small volume and simple installation.

Is the delivery fast or not?

Is the supply fast

It is superior to the technical indexes of similar products

Working pressure 0.03-1.0mpa, temperature control accuracy + 0.5 ° C, hot water temperature range 40 ° c-95 ° C

NEWS

Choose the company and service you trust

Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.

Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.

Today is a day that every Chinese person should solemnly remember—the 80th anniversary of the victory of the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War.

05

2025-09

Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.

Today is a day that every Chinese person should solemnly remember—the 80th anniversary of the victory of the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War.

09

2025-07

Long Zhida and the Sino-German Institute have established a technical collaboration focused on the R&D of a new type of ultrasonic water meter.

On July 2, Chengde Longzhida Company held a meeting with the Sino-German Institute. After thorough discussions between the two sides, Mr. Bai, General Manager of Longzhida Company, and the faculty team from the Sino-German Institute reached a consensus: Longzhida Company officially entrusted the Sino-German Institute to carry out the design and R&D work for a new type of ultrasonic water meter.

31

2024-05

Longzhida Company Celebrates National Science and Technology Workers’ Day: Joining Hands to Honor 75 Years of China’s Development and Together Writing a New Chapter for a Science-and-Technology-Powered Nation.

On May 30, Longzhida Company successfully held an exceptionally meaningful event titled “Welcoming the Eighth ‘National Science and Technology Workers’ Day’: Promoting the Spirit of Scientists.”

08

2024-03

The important conference of the Chengde City Instrument and Meter Industry Association concluded successfully—focusing on industry insights and the path to enterprise prosperity.

Recently, a major industry event was splendidly launched at Chengde Longzhida Intelligent Instrument & Meter Technology Co., Ltd. The Chengde Instrument & Meter Industry Association successfully held a seminar at the company, offering an in-depth analysis of both domestic and international economic trends as well as a workshop on corporate development planning. This conference carries the historic mission of revitalizing Chengde’s instrument and meter industry, promoting comprehensive enterprise upgrades, fostering the healthy growth of local businesses, guiding them toward scaled development, and aiming for the ambitious goal of going public.

05

2023-01

Chengde Longzhida—Wishing everyone a happy New Year!

As 2022 draws to a close, do you still remember the people and events that stood out for you? Looking back on this year, we’ve experienced ups and downs, laughter and tears. Thank you to each and every one of you who lives life with sincerity—your dedication has made even the most ordinary days shine brightly. Here’s to every single day, both ordinary and extraordinary. In 2023, may you ride through countless waves yet remain true to your original aspirations and dreams.

16

2022-12

Delivering a Party Lecture—The Significant Importance of the 20th National Congress

The 20th National Congress is a highly significant congress marking the Party’s entry into a new journey of fully building a modern socialist country and advancing toward the second centenary goal—a major event in the political life of the Party and the country.