A blast damper is designed to protect industrial equipment such as oil and gas platforms and refineries or related buildings against the destructive effects of blast wave entry through air conditioning systems. Transmitting a large volume of air, a high level of safety, and also high flexibility for installation on air conditioning systems are among the features of these dampers.

The angle of the vanes and the sensitivity to low pressures of blast dampers made by Shahrokhi Technical Institute can be adjusted. These dampers must be manually returned to their original state after an accident and closing. The blast damper has an internal spring that helps return the vanes to their original position. The material of this type of damper is hot galvanized with anti-corrosion properties or stainless steel. It should be noted that there are many uses for dampers and blast valves.

Blast dampers are used in buildings and rooms that are used to maintain critical equipment or operators and in areas where there is a high probability of explosion, such as petrochemicals, fuel storage tanks, and ammunition depots. Suppose a room containing expensive electronic-control equipment or an operator is located in the middle of the ammunition warehouse; the walls and door of the mentioned room are made of explosion-proof materials according to the standards and are resistant to the blast wave in every way, and the only way for the blast wave to penetrate, which may cause destruction, is through the air conditioning dust, which should also be protected by installing a damper. The blast damper blocks the exposed chamber to be safe in every way.

The price of an air distribution valve and blast damper depends on the quality of the products.

The main parts of the blast damper:

These dampers are made of galvanized or stainless steel

The body is fully welded with a 5 mm thick sheet

Blades and shafts with stainless steel bearings Adjustable spring mechanism

Metal square grid for uniform transmission of the blast wave

Design criteria:

These types of dampers are designed for high-risk environments with the possibility of superheat and dust explosions.

These dampers are designed for pressure waves with high amplitude and limited rise time and 1 bar (14.5 psi) peak pressure.

These dampers close against waves with a pressure of 0.1 bar (1.45 psi) and above.

Application:

Battery rooms

Control rooms

Switching rooms

Safe buildings