1. It is best to use all-metal structure, stainless steel is better, if there are plastic parts, aluminum and other components with low melting point, it can not meet the fire protection requirements.
2. To see the tightness of the selected product, the fire protection device can not directly use the spring to reach the valve page: First, the spring elasticity failure will lose its effect under high temperature conditions, and the second is that the spring has elastic pressure and does not die valve pages. The fire prevention device should effectively lock the valve page (specifically, push the valve page with fingers to see if it can be opened, and the fire is invalid if it is opened).
3. To see the ventilation of the selected product, the valve page of the product is not the best choice for the inclined monolithic valve page structure, which will cause gas pressure, affect the upward ventilation.
4. The selected product should be provided with an upward flow guide device that can guide the flow of gas upwards. If the valve sheet is a monolithic inclined structure with an upward diversion structure, it will cause the air outlet to become smaller, generate turbulence and other problems, and should be avoided.
5. The temperature control of fire dampers is best to use the standard melting point of the fuse, the reaction is sensitive, more accurate temperature control.
6. The selected fire damper should be able to clean and reset without changing the mounting parts.
2. To see the tightness of the selected product, the fire protection device can not directly use the spring to reach the valve page: First, the spring elasticity failure will lose its effect under high temperature conditions, and the second is that the spring has elastic pressure and does not die valve pages. The fire prevention device should effectively lock the valve page (specifically, push the valve page with fingers to see if it can be opened, and the fire is invalid if it is opened).
3. To see the ventilation of the selected product, the valve page of the product is not the best choice for the inclined monolithic valve page structure, which will cause gas pressure, affect the upward ventilation.
4. The selected product should be provided with an upward flow guide device that can guide the flow of gas upwards. If the valve sheet is a monolithic inclined structure with an upward diversion structure, it will cause the air outlet to become smaller, generate turbulence and other problems, and should be avoided.
5. The temperature control of fire dampers is best to use the standard melting point of the fuse, the reaction is sensitive, more accurate temperature control.
6. The selected fire damper should be able to clean and reset without changing the mounting parts.
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For water treatment industry, our products include: Hydrochloric acid, PVA. Aluminum sulphate, Caustic soda, Soda ash, Polymeric Aluminum Chloride,Neutralizer,Corrosion inhibitor etc.Water Treatment Chemicals
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