Products

We offer great strength in quality and development,merchandising,sales and marketing and operation for Factory Price For China Cold Storage Room Refrigeratory Hydraulic Soft Close Door Check Closer, Welcome to visit our firm and factory. Be sure to come to feel free to get in touch with us in case you need any additional assistance.
We offer great strength in quality and development,merchandising,sales and marketing and operation for China Cold Storage Closer, Door Closer, Our specialist engineering team will generally be prepared to serve you for consultation and feedback. We are able to also supply you with free of charge samples to meet your requirements. Best efforts will likely be produced to supply you the best service and merchandise. When you are keen on our business and products and solutions, make sure you speak to us by sending us emails or call us quickly. In an effort to know our products and company extra, you may come to our factory to view it. We’ll generally welcome guests from all over the world to our business to create business relations with us. Make sure you feel cost-free to speak to us for small business and we believe we’ll share the best trading experience with all our merchants.

They disable the self-closing function of a fire protection door in a controlled way. This means that they keep fire protection doors open, but automatically release them in the event of a fire so that door closers can do their job.

WE ARE DORRENHAUS
WE STARTED AS A FAMILY BUSINESS, OVER 140 YEARS AGO!
Dorrenhaus brand was originated in 1872 in Germany,with the development and progress, Dorrenhaus successor decide to invest door closer factory in China.In 2011,Zhejiang Dorrenhaus Hardware Industrial Co.,Ltd was formally established.

The D4016 Series features a single-piece cast aluminum body and a 1-3/8” heat-treated steel piston, a heat-treated pinion and staked valves. The D4016 Series standard door closer is certified ANSI/BHMA A156.4 Grade 1, is UL listed and is backed by a 10-year warranty.

*In case of unusually high or heavy doors, windy or draughty conditions, or special installations, a large power size of door closer should be used.

Door closers pull doors closed once they’ve been opened and released. They are used on fire doors to help prevent the spread of flames and smoke in the event of a fire. They are also used to keep out drafts and regulate room temperature in interior spaces.

Dorrenhaus comprises R&D center, testing laboratory,manufacturing center and sales dept, has over 10 in-service engineers and research specialists. Since it was founded, developing High performance door control products has always been the objective of Dorrenhaus. Dorrenhaus people have continuously tried to improve product quality, introducing oversea high and new technical equipment,giving our company good technical capabilities. Moreover, all of our R&D engineers has more than 20 years experience in door closer industry.

We offer great strength in quality and development,merchandising,sales and marketing and operation for Factory Price For China Cold Storage Room Refrigeratory Hydraulic Soft Close Door Check Closer, Welcome to visit our firm and factory. Be sure to come to feel free to get in touch with us in case you need any additional assistance.
Factory Price For China Cold Storage Closer, Door Closer, Our specialist engineering team will generally be prepared to serve you for consultation and feedback. We are able to also supply you with free of charge samples to meet your requirements. Best efforts will likely be produced to supply you the best service and merchandise. When you are keen on our business and products and solutions, make sure you speak to us by sending us emails or call us quickly. In an effort to know our products and company extra, you may come to our factory to view it. We’ll generally welcome guests from all over the world to our business to create business relations with us. Make sure you feel cost-free to speak to us for small business and we believe we’ll share the best trading experience with all our merchants.