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NSHEV Natural Smoke Ventilator
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Natural Smoke and Heat Ventilator

Natural Smoke and Heat Exhaust Ventilator provides natural light, ventilation, smoke exhaust. It can be linked with fire fighting system. Once there's fire indoors, the windows can be opened within 60s automatically. It has excellent water-tightness, air-tightness, resistance to wind load and thermal insulation. The control systems are available in electric and pneumatic which are safe and reliable.

According to clients requirements, the opening angle can reach 150°+, The skylight part can be hollow polycarbonate sheet or tempered glass which can effectively increase the indoor brightness. The window frame is made of theremal break heat insulated aluminum alloy profile, which can reduce the U value effectively. 



Principles and Function of NSHEV System

Time of issue:2019-11-06 00:00:00
The important role of NSHEV SYSTEM
   We have a very clear division between the two concepts of "fire extinguishing" and "fire prevention" in fire protection:
 ● Fire extinguishing: Fire extinguishing means all measures taken in the event of a fire to prevent it from endangering life, health and property.
 ● Fire prevention: Fire prevention means all measures taken to prevent fire from occurring or spreading and keep escape routes open. The purpose is to prevent the spread of fire, give people time to escape on their own, and give fire brigades time to organize people to escape safely from the building .
  Fire exhaust windows are classified as "fire-resistant" products, which help save lives in a fire. Implementation of national standard building codes, special building codes and technical codes.
  During a fire, a large amount of smoke, gas, and heat is generated. The most important function of the fire smoke exhaust window is to efficiently and quickly discharge smoke, gas and heat outside the building. Avoid accumulating large amounts of toxic fumes in a short period of time.
  In buildings without smoke extraction windows, the risk of escape and rescue measures will be greatly exacerbated, because the inability to exhaust heat and smoke will cause fires and thick smoke, and active and passive rescue will not be possible.
  When a fire occurs, the fire protection system will send a fire alarm signal to the fire linkage controller, and the fire controller will open the fire window to quickly discharge poisonous smoke.
  Fire deaths are rarely burned, and almost 90% are killed by suffocation caused by inhalation of smoke. "People who died in the fire were mainly suffocated by thick smoke" mainly had the following reasons: 
 ● Toxic and corrosive ingredients
 ● A large amount of smoke rises under the buoyancy effect, causing dense smoke to permeate the entire room or building. In the worst case, extreme temperatures can also cause buildings to collapse. One of the most important tasks of fire smoke exhaust windows is to increase the smoke and heat exhaust channels of the building. This will allow more time for people to evacuate the building by themselves, allow the fire brigade to actively rescue and evacuate the entire building.
  How the natural smoke extraction system works:
  After being triggered by the smoke sensor or manually, the smoke and heat exhaust window will open automatically. Rising fumes can be discharged through these channels in the early stages of a fire. Fresh air channels installed in the lower part of the building play an indispensable role in this process. These channels suck in fresh air and assist in the exhaustion of a large amount of smoke.
  Benefits of installing a fire exhaust window
  The fire smoke exhaust window can be quickly opened when a fire occurs, exhausting smoke, hot air, and inhaling fresh air, so as to gain valuable time for personnel escape and firefighters to extinguish the fire.

Mouth protection  

Mouth keep escape channel smokefree

Reduce environmental damage

Protection of property

Active rescue

Mouth protection building structure

Mouth assisted fire suppression 

Control the fire in a local area

Mouth to minimize damage from fire extinguishing

Ventilation in a mouth fire

Minimize the use of fire extinguishing agents


Minimizing heat load


Product Range


Single or Double Flap NSHEV

The appearance is flat design, with single window and double window optional. It is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has superior thermal insulation and waterproof structure. It can be linked with fire control system, and can be connected with wind and rain sensor to realize intelligent control. 5 ° slope design provides waterproof performance, self-cleaning and snow resistance.

Triangle Type NSHEV

Triangle design with double flaps is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has excellent heat insulation and waterproof structure. It can be linked with fire control system, wind and rain sensor to realize intelligent control.

Arch Top Open Type NSHEV

The appearance is arch design, available in single flap or double flaps. It is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has excellent insulation and integrated waterproof structure. It can be linked with fire control system and wind& rain sensor to realize intelligent control.

Arch Side Open Type NSHEV

The appearance is arch design. It is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has excellent insulation and integrated waterproof structure. It can be linked with fire control system and wind& rain sensor to realize intelligent control.

Hidden Frame Glass NSHEV

With invisible aluminum alloy frame structure, single and double windows can be selected. It is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has strong thermal insulation and waterproof structure. It can be linked with the fire control system and can be connected to the wind and rain induction control system for intelligent control.

Tempered Glass NSHEV

With aluminum alloy frame structure, single and double windows can be selected. It is suitable for natural smoke extraction, ventilation and natural lighting on the roof. It has strong thermal insulation and waterproof structure. It can be linked with the fire control system and can be connected to the wind and rain induction control system for intelligent control.

Tempered Glass Wall Window

It is suitable for natural smoke exhaust, ventilation and natural lighting on the wall. You can choose from overhang, underhang, open frame or hidden frame. It has strong thermal insulation and waterproof structure. It can be linked with fire control system, and can be connected with wind and rain induction control system to realize intelligent control.
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Project Cases of TOPRISE NSHEV

Time of issue:2019-11-04 00:00:00
project name Sunroof type Area (square meter) Completion time

Jinshan Weilong

Slotted, hollow PC board

936 Under construction

Wuyishan Nongfushan Spring

Dome type, hollow PC board

670 Under construction

Xi'an Bosch

Triangle, aluminum


Shanxi Yuncheng Dayun Automobile New Energy Plant Project

Dome type, hollow PC board

864 11/11/2019

Shijiazhuang City Rail Transit Line 3 Phase 2 Bid Section 04

Hanging window, hollow PC board

1757 Under construction

Beijing Benz Automobile Co., Ltd. reorganizes the BAIC Beijing branch manufacturing upgrade project

Slotted, hollow PC board

3109 2019/09/01

Xiangxi Hesheng Original Tobacco Development Co., Ltd.

Triangle, round arch, hollow PC board

2044 11/11/2019

Yupei E-commerce Changsha Operation Center

Slotted, hollow PC board

432 11/11/2019

Fengshu Changsha Airport Logistics Park

Slotted, hollow PC board

675 11/11/2019

Kunming Airport Logistics Park Construction Project Natural Ventilation Smoke Exhaust System

Slotted, hollow PC board

936 11/11/2019

Product upgrade project of BMW Brilliance Automotive Co., Ltd. (Dadong Plant)

Arch type, hollow PC board

7003 Under construction

ContiTech Qingdao

Slotted, hollow PC board

354 2019/10/1

Shanghai Jinshan State Chemical

Slotted, hollow PC board

twenty four 11/11/2019

Brilliance Renault Skylight Project

Triangle type, hollow PC board

210 2019/9/1

Geely Industrial Park

Dome type, hollow PC board


Changzhou Engel injection molding machine

Dome type, hollow PC board

1443 2019/9/1

Phase I of Tianjin Airlines Port Grand Customs Clearance Base

Triangle type, hollow PC board

3036 2019/9/1

Jingdong Asia No.1 Hohhot Logistics Park Project

Triangle type, hollow PC board

1428 Under construction

Kraussma's non-high-end injection molding machine intelligent manufacturing plant

Slotted, triangular, hollow PC board

1094 11/11/2019

SAIC Volkswagen MEB Project Joint Plant

Triangle type, hollow PC board

4703 2019/9/1

Jinyi E-commerce New City (China's Intelligent Backbone Network Jinyi Project)

Slotted, hollow PC board

1314 11/11/2019

Shaanxi Tiancheng Aviation Material Co., Ltd.

Dome type, hollow PC board

684 2019/7/1

Qingdao Metro Line 8

Slotted, hollow PC board

7103.1 May 1, 2019

Hebei Automobile Manufacturing Base

Dome type, hollow PC board

19000 May 1, 2019

Jiande Nongfu Spring Project Phase II

Triangle type, hollow PC board

900 2019/6/1

Songjiang Pepsi II

I-shaped, hollow laminated glass

720 1/8/2019

Beijing New Airport China Southern Airlines Base

Triangle type, hollow PC board

4349 2018/12/1

Shanxi Yuanye New Energy Vehicle

Triangle type, hollow PC board

8300 2018/12/1

Yibin Chery New Energy Vehicle

Triangle type, hollow PC board

4600 2018/12/1

SAIC solemn and Ningde project

Dome type, hollow PC board

6490 2018/10/1

Shijiazhuang United Plant

Triangle type, hollow PC board

3896 2018/9/1
project name Sunroof type Area (square meter) Completion time

Qingdao Metro Line 13

Slotted, hollow PC board

9800 2018/10/1

Transmission Gear Project of Tianjin Pacific Transmission Technology Co., Ltd.

Slotted, hollow PC board

3276 2018/1/1


Slotted, hollow PC board

1100 2018/1/1

Bruckner Machinery 2 # Workshop

Dome type, hollow PC board

200 2018/9/1

Carobia China Advanced Materials Co., Ltd.

Dome type, hollow PC board

284 2018/9/1

Land Rover Jaguar Mould Workshop

Triangle top open, hollow PC board

375 2017/12/1

Huizhou China Construction Steel Structure

Triangle type, hollow PC board

1890 2017/11/1

Beijing Benz Engine

Dome type, hollow PC board

1987 2017/11/1

Nantong IKEA

Slotted, hollow PC board

2333 2017/9/1

Zunyi High Speed ​​Railway Station

I-shaped, hollow laminated glass

3346 2017/3/1

Dow Chemical

Triangle type, hollow PC board

3500 2017/1/1

BMW Shenyang

Dome type, hollow PC board

15000 2016/9/1

Land Rover Jaguar Engine

Triangle type, hollow PC board

2300 2016/11/1

Schaeffler Nanjing

Side open type, hollow PC board

3200 2016/10/1

Shenyang Jinbei Logistics

Dome type, hollow PC board

3148 2016/6/1

Nantong Merck Pharmaceuticals

Slotted, hollow PC board

2308 May 1, 2016

Changzhou Bosch

Slotted, aluminum plate


Dalian Metro

Sliding type, single glass

2900 2016/3/1

Taicang Schaeffler

Side open type, hollow PC board

1150 2016/2/1

Changsha Bosch

Dome type, hollow PC board

1500 2015/12/1

Changzhou JIS

Dome type, hollow PC board

1100 2015/10/1

Tianjin Volkswagen Engine

Dome type, hollow PC board

2800 2015/8/1

Guangdong Liansheng

Dome type, hollow PC board

882 May 1, 2015

Land Rover Jaguar Welding

Triangle type, hollow PC board

2300 2015/3/1

Changzhou Xingyu Car Light

Triangle type, hollow PC board

1400 2014/12/1

Tianjin Volkswagen

Dome type, hollow PC board

3200 2014/11/1

Jiading Stadium

Arched side open, hollow PC board

2500 2014/4/1

Guangdong Procter & Gamble

I-shaped, hollow laminated glass

1500 2014/3/1

Beijing Benz

Slotted, hollow PC board

12500 2013/11/1


Triangle type, hollow PC board

1300 2013/9/1


I-shaped, hollow laminated glass

1500 2013/7/1

Kerry Logistics

Dome type, hollow PC board

2300 2013/1/1

Taicang Procter & Gamble

I-shaped, hollow laminated glass

2500 2012/3/1
Shanghai TR Steel Building Products Co.,Ltd

Shanghai Headquarters: Room 605, Building 10, Lane 658, Jinzhong Road, Changning District, Shanghai

Production Base: No. 2, Binyang Road, Taicang Port Economic Development Zone, Jiangsu Province

Tel:+86 21 66580701   /   66580706 

Fax: 0512-88899809                



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