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LT Trapezoidal Sections

The trapezoidal sections LT20 and LT40 are often used for production halls and penthouses. Their comparatively low prime cost, fast and easy mounting and dismounting make them preferable for the investors and constructors. Offered by us hot galvanized and PVC colored sections are with an unlimited length, variety of colors and thicknesses according to the construction kind and building use.

TECHNICAL DATA

UNIFORMLY ALLOCATED LOAD kg/m2

Profile № Thickness mm Weight kg/mm            100                      125                     150                    200                          250                       300                     350

                                                  08kp; 08kp+Zn+PVC distance between the supports/sm

20/880/26/5 0,500 3,925 153 137 125 108 97 88 67
0,550 4,318 161 144 132 114 102 93 86
0,600 4,710 169 151 138 120 107 98 90
0,630 4,946 174 155 142 123 110 100 93
0,700 5,495 184 165 150 130 117 106 98
0,800 6,280 198 177 162 140 125 114 106
1,000 7,850 223 200 183 158 141 129 119
2,000 9,420 247 221 202 175 156 143 132
30/800/26/5 0,500 3,925 190 170 156 135 120 110 102
0,550 4,318 201 179 164 142 127 116 107
0,600 4,710 209 187 171 148 132 121 112
0,630 4,946 215 192 175 152 136 124 115
0,700 5,495 226 202 185 160 143 131 121
0,800 6,280 243 218 199 172 154 140 130
1,000 7,850 271 242 221 192 178 156 145
2,000 9,420 298 266 243 210 188 172 159
40/745/28/5 0,500 3,925 218 195 178 154 138 126 117
0,550 4,318 229 205 187 162 145 132 122
0,600 4,710 238 213 195 169 151 138 127
0,630 4,946 244 218 199 173 154 141 131
0,700 5,495 258 230 210 182 163 149 138
0,800 6,280 276 246 225 195 174 159 147
1,000 7,850 309 276 252 218 195 178 165
2,000 9,420 339 303 277 240 214 196 181

TRAPEZOIDAL SECTIONS STATIC CHARACTERISTICS

Profile №

20/880/26/5  thickness mm

            Wx

Jx Profile №

30/800/26/5 thickness mm

     Wx        Jx Profile №

40/745/28/5 thickness mm

Wx Jx
0,500 1,163 2,176 0,500 3,265 7,020 0,500 4,287 10,718
0,550 1,812 2,421 0,550 3,619 7,780 0,550 4,710 11,770
0,600 1,998 2,676 0,600 3,949 8,490 0,600 5,114 12,783
0,630 2,109 2,821 0,630 4,160 8,943 0,630 5,370 13,423
0,700 2,365 3,165 0,700 4,609 9,910 0,700 5,973 14,933
0,800 2,733 3,665 0,800 5,325 11,449 0,800 6,832 17,080
1,000 3,476 4,654 1,000 6,605 14,201 1,000 8,575 21,433
2,000 4,254 5,709 2,000 7,971 17,137 2,000 10,326 25,810

 

Geometrical characteristics: Wx=resistant factor, sm3 Jx= inertia factor, sm4  

Gutters

Seamless half-round and box-type gutters
made by hot galvanized, PVC colored, cooper, zink,
aluminum and titan-zink sheet metal.

TECHNICAL DATA

Round Gutters DIN 18 461

Dimensions unfolding d1,-1 d2,-2 e1,-1 f1,min  g,-1
250/kp. 250 18 105 7 10 5
280/kp. 280 18 127 7 11 6
333/kp. 333 20 153 9 11 6
400/kp. 400 22 192 9 11 6
s1=0.5;0.55;0.6;0.7 мм

Square Gutters DIN 18 461

Dimensions unfolding a1,-1 b1,-2 d1,-1 f1,min g,-1 e1,-1
250/kв. 250 55 85 18 10 5 7
280/кв. 280 63 100 18 10 6 7
333/кв. 333 75 120 20 10 6 9
400/кв. 400 90 150 22 10 6 9
s1=0.5;0.55;0.6;0.7 мм

 

Possible materials are: copper, galvanized, zinc and titanium zinc sheet.

Rainwater downpipes, accessories

CHAHOV LTD is the only producer in Bulgaria of unlimited length
rainwater dawn pipes according to DIN standard.

Accessories: Outlets, corners, elbows, gutter outlets, S-curves, collars.

 

Schlebach Profiles

In the 2004 CHAHOV LTD put into production new technological line of the German Company “Schlebach” for the production of roof and façade profiles and ceiling panels.

"Schlebach" profiles advantages:

• high degree of precision;
• wide range of dimensions and materials;
• good production and mounting technology;
• easy to combine with other roof and façade elements and systems.

Different kind’s sheet metal is used as a material:

• hot galvanized- the most popular because of its low price and comparatively acceptable life - app. 15 years;
• hot galvanized - with one side or two sides PVC coating, wide color range, high elasticity, corrosion proof properties and life 30-40 years;
• cooper - exclusively effective, reliable and stable to weather material;
• aluminum, aluzink, titanzink.

 

Air Canals

The air canals are for air supplying and distributing in the premises, as well as for air leading out after its use. The air canals consist of strait and shaped parts. The inside air canal surface must be smooth to avoid dust sticking on it, easy to clean, not hygroscopic, light and fireproof, corrosion proof. Air canals made by hot galvanized sheet metal respond to such requirements.

The sheet metal thickness, the air canals are made of, depends on the size of the size of its cross section. The data is given in a table.

Canal diameter, mm Material thickness, mm
50 - 300 0,5
300 - 500 0,7
500 - 800 0,8
800 - 1 200 1,0
over 1 200 1,25

The connection of the separate canal parts is done by special elements. The gaskets are self-adhesive gummy strips.

 

Metal Structures

CHAHOV LTD produces metal structures for storages, penthouses, production buildings, covered parking lots and market places, advertising equipment, cold rolled profiles from 0.4 to 4 mm thickness and length up to 6 m.
The cold rolled profiles production is based on the most elaborated technologies in Europe. With the using of cutting and bending machine of the Swiss company THALMANN PICO 150 - 6.2 m with CNC excellent part quality is achieved.

 

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