FDB2 用于高要求应用的 A0(A60) 防火隔烟阀

• 获得各类著名船级社的型式认可：A0 级无绝缘，A15-A60 适当绝缘
• 可进行 ATEX 认证。通过冲击测试。
• 风叶包含硅胶（温度可达 300 ºC），防止正常环境下泄漏，以及热膨胀石墨密封条（150 ºC 以上有效），
  在起火状况下使风闸紧密度可增加 50%。闭合的阀符合防泄漏等级 3 的要求 (EN1751:1998)。测试尺寸为 1000×1000 mm。
• 标称熔断温度为 50 ºC、74 ºC 或 100 ºC。可选其它
  温度。
• 专利双层风叶结构，重量轻巧
• 自动、气动或手动执行器可选
• 阀门结构可适应的最大管道压力为 5000 Pa，最大
  空气流速为 15 m/s

FDB2 fire dampers meet international standards for both rectangular (width B 100-1200 mm and height H 100-1600 mm, 1 mm division) and circular ducts (Ø100-1250 mm). Modular constructions are available for bigger sizes. Non-standard dimensions and flange drilling available on request. Standard flange width 27 mm. Flanges and drilling also available according to ISO 15138 standards. Frame thickness 3 mm or 3-5 mm according to SOLAS. Also 6, 8 and 10 mm frame thicknesses are available on request. Blades are made of two sheets, each of them being 1 mm thick (sandwich design).

Frame thickness according to SOLAS

Frame thickness according to SOLAS, Edition Dec. 2015

Actuator effect in dimensions

The above table contains only some examples of actuators and their effect on dimensions.

FDB2 general drawings

FDB2 circular connections

FDB2 general drawing, top

FDB2 general drawing, circular with connection flanges

Halton FDB2 is available with following actuators:

• FDB2-EL: Electrical spring return motor; standard actuators being 24 V or  230 V or 120 V. The motor contains built-in open-closed limit switches. Separate junction box included in the EL-model. A wide range of Ex actuators available, including a one second closing time function as an option.
• FDB2-PNR: Pneumatic rotating actuator
• FDB2-SP: Manual spring-actuated damper with fusible link

DOT: manual override function available for PNR and EL models.

HSO: Halton Smart Override function for HVAC damper black-start available for PNR and EL models. With automatic reset function when power and/or pneumatic air supply is reinstated.

A wide range of accessories available.

In the event of a temperature rise in ductwork:

• FDB2-EL: fusible link releases and cuts off operating voltage to the spring return motor, allowing the spring to close the damper blades. The fire damper opens automatically when the fuse has been changed and the operating voltage to the motor is re-established.
• FDB2-PNR: fusible link releases and cuts off operating pressure to the spring return actuator, allowing springs to close the damper blades. The fire damper opens automatically when the fuse has been changed and the pneumatic air supply is re-established.
• FDB2-SP: fusible link releases allowing the spring to close the damper blades. When the fuse has been changed, the fire damper must be reset into open position manually.

Weights of standard Halton Marine FDB2 dampers without an actuator (kg)

(Frame thickness according to SOLAS)

Examples of actuator weights: FDB2-EL GGA 326.1E 2,3 kg, GNA 326.1E 1,3 kg, BF230 +3,2 kg, BLF230 +1,7 kg, ExMax/Redmax +3,5 kg, CSQP +3 kg ,
FDB2-PNR AT100 +2,1 kg, AT100 as AISI316 4,4 kg, AT200 +3,2kg, AT200 as AISI316 +6,2 kg, FDB2-SP +1 kg. Control enclosure +4 kg.

Installation and maintenance instructions are with each fire damper delivery. Copies of Operation and Maintenance manuals are available from Halton Marine Sales offices and distributors.