Products

Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for 2019 China New Design Door Hinges Floor Hinge Door Closer (YH9386), Our ultimate objective is always to rank as a top brand also to lead as a pioneer inside our field. We’re sure our prosperous experience in tool generation will gain customer’s trust, Wish to co-operate and co-create an even better upcoming with you!
Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for China Floor Hinge and Door Closer, We put the product quality and customer’s benefits to the first place. Our experienced salesmen supply prompt and efficient service. Quality control group make sure the best quality. We believe quality comes from detail. If you have demand, let us work together to get success.

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.

Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for 2019 China New Design Door Hinges Floor Hinge Door Closer (YH9386), Our ultimate objective is always to rank as a top brand also to lead as a pioneer inside our field. We’re sure our prosperous experience in tool generation will gain customer’s trust, Wish to co-operate and co-create an even better upcoming with you!
2019 China New Design China Floor Hinge and Door Closer, We put the product quality and customer’s benefits to the first place. Our experienced salesmen supply prompt and efficient service. Quality control group make sure the best quality. We believe quality comes from detail. If you have demand, let us work together to get success.