Marine fire damper with ABS MED NK CCS certificate

Description
Product Inquiry

Fire damper are mainly used for ventilation systems of ships and marine platforms where each duct passes through the fireproof barrier. In the event of a fire alarm, the system automatically cuts off the power supply of the wind gate, and the fire damper automatically closes to achieve regional isolation and avoid the fire spreading to other areas along the air channel.

The fire damper is divided into three types of control: electric, pneumatic and manual.
There are four types of shapes: rectangular, round, inserted, and grilled
The material can be made of carbon steel + coating, or stainless steel

The volume damper is divided into two types: manual and electric, mainly rectangular.
Gravity damper (check damper) sluice relies on the natural action of gravity and is generally rectangular.
Shut-off (closed) damper, there are manual, electric, pneumatic three types, the shape of the rectangular and circular.

According to the CB/T3557-1995 standard design, according to the fire resistance level is divided into A30 and A60 two, for occupancy cabin or ventilation requirements of the cabin area, general safety which installed indoors, such as installed outdoors, the electrical protection level needs to be designed according to IP56, and in the explosion-proof area, it is necessary to use explosion-proof fire gates, and the color is generally painted red. The use of real ships requires classification society certificates, such as CCS, ABS, MED, etc

Installed in the ventilation duct system, generally with reference to the CB/T 3557-1995 standard, no need for a classification society certificate, the color is generally gray or white.

Fire damper
When a fire occurs in the cabin, and the fire spreads along the air conditioning pipe and adjacent to the cabin, cut off the airlock source or, the damper blade will automatically close, or when the temperature in the pipe reaches 70 degrees Celsius, the thermostat of the damper will fuse, automatically cut off the power supply, and the damper will be closed to block the spread of fire.

Volume Damper
Installed in the ventilation duct, the handle can be rotated to adjust the airlock blade from 0 degrees to 90 degrees, so that the damper blade is adjusted from closed to any angle between opening to adjust the air flow in the air duct.

Gravity Damper
Also known as residual pressure damper or pressure balance valve, mainly used for positive pressure or negative pressure requirements of the cabin, when the cabin indoor and outdoor pressure difference is large 50Pa, the damper blade can be automatically opened by pressure, release pressure, the valve stem will be equipped with a heavy hammer, used to adjust the differential pressure counterweight.

Check Damper
Used for the ventilation pipe in the air flow has a one-way requirement of the place, used to block the specific area of the duct, in order to prevent pressure loss, generally used with centrifugal fans, such as some cabin fans require one use and one backup, the fan is equipped with a stop air gate, the air flow will not be channeled from the spare fan pipe.

Fire damper are divided into manual, electric and pneumatic according to the actuator type.
1. Manual fire damper: counterclockwise push the actuator handle, you can open the damper, pull the actuator cable or fusible sheet to fuse, the damper automatically closes under the action of spring force.
2, Electric fire damper: turn on the power, actuator action, turn 90, the damper is fully open, turn off the power supply or fusible sheet
Fused, the actuator loses power and the internal spring resets and the damper closes. The on-time of the electric system 220V or 24V takes about 60 seconds, and the off time is about 25 seconds. The damper body provides a set of passive switching signals.
3. Pneumatic fire damper: the cylinder is made of stainless steel, and the air source is connected to 0.5~0.8Mpa, and the damper is opened to cut off the air source or fusible sheet dissolution, damper mechanical valve automatic reversing, cylinder discharge, damper blade automatically closed under the action of the spring, damper opening and closing time is less than 3 seconds, can be installed on the cylinder limit switch, output passive switch signal

Our company advantages for fire damper production:
1.The ventilator system of the company is fully covered with damper products, and wide specification scope, rectangular fire damper maximum size 2000 * 1600mm, circular fire damper recognition scope of DN1800, the existing classification society certification, convenient for customers one-stop procurement.
2.The company continues to innovate, aiming at Marine environment, improve the fire damper feedback signal mode, and fuse form, to achieve low maintenance, low failure rate, has obtained a number of patent certificates
3.Introduce solid works three-dimensional design, laser blanking, automated welding, improve product quality and accuracy.
4.Synchronous production of damper control box, according to the relevant specifications, combined with customer requirements customization, to maintain the professional state of the product to the surrounding development, self-contained
5.According to the use environment of the product, targeted development of counterpart products, separate evidence, to meet customer needs, a minimum order.
6.The damper actuator, stroke switch, fuse, etc. are uniformly installed in the control box, the appearance is simple and the components are not easy to damage, the airlock In addition to the body paint, the rest of the components are electrostatic spray treatment, beautiful.

Application Scenario of fire damper:
1.ships:Ocean and all kinds of offshore ships, including container ships, LNG ships and various types of engineering vessels.
2.FPSO:Mobile large offshore oil extraction, production, storage sites.
3.Offshore Platform:Including offshore oil drilling platforms, oil production platforms, and various types of wind and power platforms
4.Special Container:Special equipment containers or residential containers, mainly used for marine flats, most of which have explosion-proof requirements.

Installation locations of fire damper:
1.The use of circular deck type fire damper, connected to the cabin fan, round, horizontal layout, generally larger size, up to DN1800
2.The area generally needs to be installed to shut off damper, usually often closed, when the emergency generator starts, the airlock automatically opens, used for generator heat dissipation, commonly rectangular.
3.Here is often used pneumatic fire damper, near the damper with a manual two-position three-way reversing valve, the air supply damper opens, the gas loss automatically closes, can provide a passive switch signal to the central control room, to achieve remote monitoring.
4.Rectangular, connected with the air conditioning box fresh air outlet, the common type is an electric multi-blade structure, should be made of stainless steel material, generally required to interlock with the air conditioning fan.
5.Installed in the corridor of the living building, the grille type is mostly, the actuator is generally manually controlled, there is also electric control, the inside of the damper is connected to the structural air duct, the exterior is level with the corridor wall panel, plus the beautification grille.
6.Mainly installed in offshore platforms or wind power platform equipment and operating areas, or special container units. The common explosion-proof grades are generally EXDIIBT4 and EXDIICT6, such as EXDIICT6 in the electromagnetic room.