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ProductsThe company has two major brands, Shangfeng and Zhuanfeng, which are mainly engaged in the research, development, production and sales of various types of fans and other high-tech products
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EngineeringCreate value for customers and wealth for shareholders; Create opportunities for employees and benefits for society
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ServiceWe make progress in researching, meeting and guiding customers' needs. Meeting customer expectations allows us to prove our commitment, and exceeding customer expectations allows us to exceed our limitations.
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AboutShanghai stock was split and listed from Shenzhen main board listed company Yingfeng Environment (000967. SZ). Its main business is the research and development, design, production and sales of ventila
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JoinOur criteria for talent selection is to take morality as the leader, have both moral integrity and ability, identify with the college culture, cultivate talents through learning and competition, and provide every employee wit
Products
- Details
- Appearance and size
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- Commodity name: Smoke exhaust fire damper
- Commodity ID: 1060228062835990528
1、 Product definition
It is installed on the pipe of the mechanical smoke exhaust system and is normally open. In case of fire, when the flue gas temperature in the smoke exhaust pipe reaches 280 ℃, it is closed, and meets the requirements of smoke leakage and fire resistance integrity within a certain period of time, which plays a role of smoke isolation and fire resistance. The first version of smoke exhaust fire damper is composed of valve body, blade, actuator and temperature sensor.2、 Model description
FHF①_②_ Ax B A-valve nominal width B-valve nominal height
① -- Product control mode:
W: Automatic shutdown of temperature sensor control
S: Manual control off
DC: electric control electromagnet closed
DJ: electric control motor closed
DQ: electric pneumatic mechanism closed
② -- Product function code:
F: With air volume adjustment function
Y: With remote reset function
K: With position signal feedback function after the valve is opened and closed in place
For example:
PFHF-WSDC-K 500x400 indicates that it has the function of signal feedback after the temperature sensor (280 ℃) is closed automatically, manually, electrically controlled electromagnet is closed and the valve is closed in place.3、 Product features
① Low leakage and good airtightness;
② Strong corrosion resistance and long service life;
③ The valve can be opened and closed flexibly and the position feedback signal is accurate.4、 Performance parameters
① Nominal pressure: ≤ 300pa at ambient temperature;
② Applicable medium: air (flue gas);
③ Leakage: a. At ambient temperature, the differential pressure between the front and rear of the valve blade is 300 ± 15pa static pressure, and the leakage per unit area is ≤ 500m3/(m2);
B. Within the specified fire resistance (GB/T15930) time, the static pressure at the front and back of the valve blade is 300 ± 15pa, and the leakage per unit area is ≤ 700m3/(m2);
④ Fire resistance time: ≥ 1.5h (GB/T15930).
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Overall dimension
rectangle
circular
Valve size
No.
B
A
160
200
250
320
400
500
630
800
1000
1250
1600
2000
1
160
√
√
√
2
200
√
√
√
√
√
3
250
√
√
√
√
√
√
4
320
√
√
√
√
√
5
400
√
√
√
√
√
6
500
√
√
√
√
√
√▲
7
630
√
√
√
√
√▲
8
800
√
√
√
√▲
√▲
9
1000
√▲
√▲
10
1250
√▲
√▲
Note: It can be made according to customer's requirements (no more than 1250x800)
The combined valve is a combination of valves with 3C certificate for fire protection, and the combined valve meets the ventilation area (interface with matching requirements);
The thickness of combined valve shall be increased to 310mm, and 300mm maintenance space shall be reserved around the valve;
When placing an order for a combined valve, the installation method of the valve must be informed (pipe installation, wall brick or other)
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