logo
About us
Supports

Rang Dong Develops Efficient Vacuum Flask for Larger Group

May 10th, 2025

Hanoi-based Rang Dong, fully known as Rang Dong Light Source and Vacuum Flask Joint Stock Company, has designed the flask model RD-1542N5.E as a practical solution for maintaining beverage temperatures. Capable of storing 1.5 liters of liquids, the flask serves best for family or group gathering, providing long-lasting thermal retention for both hot and cold beverages.  

Model RD-1542N5.E from Rang Dong, Vietnam’s leading manufacturer of vacuum flask products, combines durable construction, user-friendly features and safety-focused materials. The polished stainless steel exterior enhances the flask’s durability while adding a sleek, modern aesthetic suitable for any setting. 

Inside, the glass lining keeps the beverages in storage free from harmful chemicals while retaining the original taste, offering peace of mind for health-conscious consumers.  

Its practical design also includes a push-button pour mechanism to enable easy and mess-free serving, even in busy environments. 

https://rangdong.com.vn/uploads/images/UD-SP/phich/RD-1542N5.E/RD-1542N5.E-1.jpg, Picture 

This flask model goes beyond basic functionality to deliver eco-conscious benefits. Its reusable design reduces reliance on disposable containers as part of global efforts toward sustainable living.   

By minimizing energy waste from reheating or cooling beverages, the flask supports both environmental responsibility and cost savings. It is a reliable companion for reducing carbon footprints while maintaining comfort and convenience. 

The thoughtful design of model RD-1542N5.E, with the 1.5-liter capacity, addresses the demand to cater to group gatherings, contributing to creating the best atmosphere for family meals, meetings or travel.   

Its exceptional thermal retention feature means that the beverages will stay at the desired temperature throughout the day, so users could avoid constant reheating or refrigeration. The feature not only saves time but also provides a practical solution for users with busy schedules.  

The flask’s sturdy construction and high-quality materials are key points for a long-term investment as users seek a reliable thermal solution.  

Its polished stainless steel body resists wear and tear from daily use, hence extending the flask’s lifespan. 

The glass-lined interior, free from harmful substances, provides a safe storage environment for beverages, preserving their quality and flavor. These features reflect Rang Dong’s commitment to creating products that prioritize user safety and satisfaction. 

Rang Dong’s Dedication 

By combining innovative technology with eco-friendly practices, the RD-1542N5.E vacuum flask supports a more sustainable lifestyle. Its reusable nature reduces waste, while its efficient thermal retention minimizes energy consumption.   

These attributes align with Rang Dong’s broader mission to promote environmental stewardship through high-quality, practical products. 

https://rangdong.com.vn/uploads/images/UD-SP/phich/RD-1542N5.E/RD-1542N5.E-2.jpg, Picture

Rang Dong’s dedication to quality and innovation is evident in every detail of model RD-1542N5.E. From the use of durable materials to the feature of efficient thermal retention, the flask exemplifies the company’s commitment to enhancing daily living. 

Combining functionality, safety and eco-conscious design, the vacuum flask is a standout choice for anyone seeking a reliable solution for maintaining beverage temperatures. 

Should you have any questions or request a quotation of Rang Dong products, please send us an email to: export@rangdong.com.vn 

Websites: en.rangdong.com.vn and vacuumflask.rangdong.com.vn 

Relevant news
Rang Dong upgrades 1-liter premium thermos with smart LED lid
October 2nd, 2023
Rang Dong upgrades 1-liter premium thermos with smart LED lidRang Dong upgrades 1-liter premium thermos with smart LED lid

While a thermos produced by Vietnam's Rang Dong has been associated with generations of Vietnamese people for decades, the company's latest 1-liter premium thermos, equipped with a digital LED temperature display, Model RD-1045N3.E, shall be the first choice for everyone to enjoy a hot or cold drink.

Thermos with button top - Small change makes a big difference
October 2nd, 2023
Thermos with button top - Small change makes a big differenceThermos with button top - Small change makes a big difference

Rang Dong has released many vacuum flask models so far in 2021 which have impressed customers, resulting in rising revenue and good reviews from users. One of the best-selling models is a thermos with button top, coded RD-2045ST2.E. We're going to look into what makes the item outstanding from others on the market. Let’s check it out in the context below.

Rang Dong personalizes borosilicate glass water bottles desgin with plastic, stainless steel lids
October 2nd, 2023
Rang Dong personalizes borosilicate glass water bottles desgin with plastic, stainless steel lidsRang Dong personalizes borosilicate glass water bottles desgin with plastic, stainless steel lids

Daily hydration is essential to our body. The task is easy at home, but once we go out, taking a water bottle along that can keep our drinks fresh for hours is a great idea. Here comes a brief introduction of the latest borosilicate glass water bottles produced by Rang Dong, Vietnam's top manufacturer of vacuum flask and water bottles. Apart from making a good companion, it can also be a cute present for our loved ones.

Push-Button Airpot makes the best assistant in storing hot and cold drinks for extended time
October 2nd, 2023
Push-Button Airpot makes the best assistant in storing hot and cold drinks for extended timePush-Button Airpot makes the best assistant in storing hot and cold drinks for extended time

Push-button airpot has made its way firmly into our daily life thanks to its convenience of keeping hot or cold drinks for a long time. Rang Dong has developed the airpot model RD 2045 ST2.E and it turns out to be one of the best airpots in the company's collection of flasks. Let’s go down to understand the details of RD 2045 ST2.E in the following article.

Beverage carafes with lids enhance drinking experience
November 15th, 2024
Beverage carafes with lids enhance drinking experienceBeverage carafes with lids enhance drinking experience
Beverage carafes with lids prevent spills, protect against odors, and retain drink temperature for extended hours, making them versatile for various occasions.
Magnetic lid water bottle blends style with innovation
December 28th, 2024
Magnetic lid water bottle blends style with innovationMagnetic lid water bottle blends style with innovation
With a chic appeal, a magnetic lid water bottle seamlessly blends style and innovation, allowing personalized hydration and bringing eco-friendly values.
Rang Dong’s Chrome Vacuum Flask Elevates Beverage Experience
April 26th, 2025
Rang Dong’s Chrome Vacuum Flask Elevates Beverage ExperienceRang Dong’s Chrome Vacuum Flask Elevates Beverage Experience
The chrome vacuum flask made by Vietnam’s Rang Dong with a sleek design represents a perfect blend of style and functionality, offering superior heat retention.