According to SNiP II-22-81 “ Stone and stone-stone structures ”, paragraph 6. 31: “ Flexible connections should be designed from corrosion-resistant steels or steels protected from corrosion, as well as from polymeric materials.”
This SNiP indicates that the use of non-corrosive
Comparative table of characteristics of fiberglass
Indicators |
Carbon steel |
Fiberglass |
Stainless steel |
Tensile strength, MPa |
550 |
1000 |
550 |
Thermal conductivity |
56 |
Less than 1.0 |
17 |
Fire resistance, ° С |
up to 600 |
up to 1000 |
up to 600 |
Electrical conductivity |
conducts electricity |
Does not conduct electricity |
Conducts electricity |
Magnetic characteristic |
Magnetized |
Not magnetized |
Not magnetized |
Density |
7.85 |
2.2 |
7.85 |
Reliability indicators |
low corrosion and chemical resistance |
high corrosion and chemical resistance |
high corrosion and chemical resistance |
At the moment, we have the following price list for valves.
TYPE OF COMMUNICATION
|
LENGTH OF COMMUNICATION (mm) |
COMMUNICATION DIAMETER (mm) |
PRICE for 1 pc. rubles with VAT 18% |
gssp-200-5-sa |
200 |
5 |
3,50 |
gssp-250-5-sa |
250 |
5 |
4.35 |
gssp-300-5-sa |
300 |
5 |
5.20 |
gssp-350-5-sa |
350 |
5 |
6.00 |
gssp-400-5-sa |
400 |
5 |
6.80 |
gssp-200-6-sa |
200 |
6 |
3.70 |
gssp-250-6-sa |
250 |
6 |
4.60 |
gssp-300-6-sa |
300 |
6 |
5.50 |
gssp-350-6-sa |
350 |
6 |
6.40 |
gssp-400-6-sa |
400 |
6 |
7.20 |
Flexible bonds are made using anhydride type hardener.
Designation example: GSSP-ХХХ-Х-СА, where GSSP-flexible connection fiberglass
X-diameter of the bond (in mm), CA-continuous anchor section with a bidirectional "