Products Center
The company specializes in the production and sales of stainless steel ring pressure, double clamp pressure, groove, socket welding, butt welding and matching water distributor five series products
Products Center
The company specializes in the production and sales of stainless steel ring pressure, double clamp pressure, groove, socket welding, butt welding and matching water distributor five series products
The fireproof bridge is mainly composed of glass fiber reinforced materials and inorganic adhesives, composite fireproof boards and metal skeletons and other fireproof substrates. The outer layer is added with fireproof coating, the fireproof bridge will not burn after fire, so as to block the spread of fire, has an extremely good fireproof and fireproof effect, and has fire-resistant, oil-resistant, corrosion-resistant, toxic, pollution-resistant, the overall installation is convenient, the str
The fireproof bridge is mainly composed of glass fiber reinforced materials and inorganic adhesives, composite fireproof boards and metal skeletons and other fireproof substrates. The outer layer is added with fireproof coating, the fireproof bridge will not burn after fire, so as to block the spread of fire, has an extremely good fireproof and fireproof effect, and has fire-resistant, oil-resistant, corrosion-resistant, toxic, pollution-resistant, the overall installation is convenient, the structure is reasonable, the service life is long, and beautiful, the cable is installed in the cable tray, the environment is clean and tidy, and the cleaning is convenient. Fireproof coatings have the characteristics of thin coating, fire resistance* height limit, and strong adhesion.
Structural features
Fireproof bridge, the surface has a frosted feeling, generally used in the fire-fighting equipment distribution line, including fire control room, fire pump, fire elevator, smoke exhaust fan and automatic fire alarm system, in addition to the automatic fire alarm system other distribution lines can use fire-resistant cables, without the use of fireproof bridge. The fireproof bridge is required to be more than 1h in the underground garage. For sections that require the bridge to be fireproof, fire-resistant or flame-retardant board and mesh materials can be added to the tray and ladder frame to form a closed or semi-closed structure, and the surface of the bridge can be painted in accordance with CECS 24; 90 "Technical Specifications for the Application of Fire Retardant Coatings for Steel Structures" of the fireproof coating, its overall fire resistance should meet the requirements of the relevant specifications and standards.
Product technical parameters
The fireproof bridge is sprayed with a layer of fireproof paint on the surface of the ordinary bridge to play the role of fireproof and flame retardant! In fact, the bridge itself will not catch fire, it may only be the cable, and the fireproof paint plays a fireproof and flame-retardant principle.
The protective thickness of the fireproof tray is required according to Table 10 of JB/T 10216-2000 "Cable Tray for Electronic Control and Power Distribution", and the electroplating is greater than 12 μm, the hot plating is greater than 65 μm, the plastic spraying is greater than 50 μm, and the fire protection is greater than 500 μm, which can be measured with a thickness gauge.
The main parameters of flame retardant and fireproof bridge
Appearance: Dark gray
Homogeneous and thick fluid, no agglomeration;
Surface drying time: 2 hours;
Bond strength: 0.78Mpa;
Seismic resistance: deflection L/200 coating does not layer and does not fall off;
Bending resistance: deflection L/100 coating does not layer and does not fall off;
Fire resistance: no change in coating after immersion in tap water foam for more than 24 hours;
Acid resistance: soaked in foam in 3% HCL for more than 24 hours, no change in coating;
Alkali resistance: soaked in foam in 3% Ca(OH)2 for more than 24 hours, no change in coating;
Salt resistance: soaked in foam in 3% NaCl for more than 24 hours, no change in coating;
Frost resistance: 15 times;
The coating thickness for different fire resistance* limits is as follows
Fire retardant* limit h: 0.5, 1, 1.5, 2, 2.5
Coating thickness mm: 0.4-0.6, 0.8-1.0, 1.4-1.6, 1.8-2.0, 2.4-2.6
Inorganic laminate
Fire Resistance Class *
Thermal conductivity (W/M, K): ≤0.5
Tensile strength (Mpa): ≥15
Compressive strength (Mpa): ≥45
Flexural strength (Mpa): ≥35
Impact strength (Mpa): ≥ 2.0

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