Product features:

Model Description:

"QM" : airtight

"FZ" : the airlock

"AXB; DN ": A*B rectangle: length * width (air duct inner stop); DN round: diameter of air duct

"100 * 100 ~ 1600 * 1600" square; "DN100 - DN1600" circle

Product Composition:

Airtight closing damper is composed of pneumatic actuator (rotating cylinder), electronically controlled directional valve (solenoid valve), valve body, valve plate and so on.

Product features:

Airtight airlock is mainly used in the ventilation system with smoke or harmful gas requirements, to isolate smoke or harmful gas along the expansion function of the air duct. Control form: rotary cylinder; Our airtight airlock is designed according to the offshore work, can effectively prevent water vapor, smoke infiltration, ensure normal operation in such environment, especially suitable for ships, offshore platforms and underground engineering wet environment.

Product advantages:

Special tooling design and production, small deformation, low air leakage, good reliability, etc. Equipped with relevant signal feedback, can realize automatic control; In the case of heavy smoke, according to customer's requirements, the use of stainless steel SUS316 production; The shaft and blade are made of stainless steel SUS316L, the shaft sleeve is made of H62 maintenance free type, and the air valve can be opened and closed freely.

The air leakage volume meets the requirements of en 1751:1999 Class 2.

Basic parameters：

● Closing time < 2S；

● Leakage air volume ≤3.72m3/m2· h@200Pa;

● Air source: compressed air 0.5~ 0.8mpa；

● Control power supply: DC24V/AC110V/AC220V, 50/60Hz；

● Electrical protection class: IP44/IP56；

● Explosion-proof grade: ExdIIBT4/ExdIICT4；

● The shell is made of Q235-B, and can be made of stainless steel SUS316 according to customer requirements;

● Rotating shaft adopts SUS316, shaft sleeve adopts H62, blade adopts SUS316 production, pneumatic actuator adopts rotary cylinder material adopts SUS316, with spring return, with SUS316 two three way hand valve box, customers can be installed on the spot nearby；

● Stainless steel traffic light indicator box is available.

Application：

Widely used in various types of passenger ships, cargo ships, naval vessels and offshore oil platforms and other places.