Paronite PON-B
General purpose paronite PON-B
Application General purpose paronite is used in the form of gaskets of various sizes and configurations for sealing flat connectors of fixed joints of the type: "smooth" in working environment with pressure of no more than 4 MPa; "Thorn-groove"; "Protrusion-depression" of containers and machinery, pumps, fittings, pipelines, compressors, internal combustion engines and other units operating in various environments.
Tjlerable parameters when working in various environments are as follows:
Max temperature Max pressure Fresh superheated water 250 6.4 Saturated and superheated steam 450 6.4 Air -50 +450 1 Dry neutral and inert gases -50 +450 6.4 Liquid and gaseous ammonia -40 +150 2.5 Water solutions salts -15 +100 2.5 Alcohols 150 1.6 Heavy oil products (diesel oil, diesel fuel, fuel oil, paraffin, tar, asphalt, bitumen) 200 6.4 Light oil products (gas oil, gasoline, kerosene) 150 2.5 Liquid oxygen -182 0.25 The roughness parameter of the sealing surfaces should be no more than 40 mocrons.
Technical specifications: Paronite is a sheet material made on paronite rollers from a mixture of chrysotile asbestos fibers, synthetic rubber and vulcanizing fillers.
Density, g/cm3 - 1.6 - 2
Conditional strength at break, MPa, not less than - 6.6
Mass increase in liquid environment, %, no more than: in water at a temperature of +100°C for 12 hours - 14, in kerosene at a temperature of +23°C for 12 hours - 40
Compressibility after 35 MPa,%: - 8-20
Recoverability after 35 MPa, %, not less than - 30
All paronite batches are tested in special autoclaves for sealing ability in a steam atmosphere at a pressure in the collector of 10 MPa and a temperature of 450 ° C and in a kerosene medium at a pressure in the collector of 15 MPa and a temperature of 20 ± 5 ° C.
Paronite is efficient in the Far North and tropical climate. For tropical climates, paronite is made using fungicides. Tropical paronite has the letter T. Paronite is produced both in the form of sheets and gaskets, the size and configuration of which are set by the customer's drawing agreed with the manufacturer.
|
Environment |
Working pressure, MPa |
Temperature, °С |
Change in thickness, % |
Density, g/cm3 |
Thickness, mm |
|
Fresh superheated water, saturated and superheated steam, dry neutral and inert gases |
6,4 |
from -50°С to +450°С |
|
|
|
|
Air |
1 |
from -50°С to +100°С |
|
|
|
|
Liquid oxygen and nitrogen |
0,25 |
up to +182°С |
|
|
|
|
Heavy and light oil products |
2.5 |
up to +200°С |
|
|
|
|
Compressibility at 35MPa |
|
|
from 5 to 15 |
|
|
|
Recoverability after 35MPa |
|
|
35 |
|
|
|
Density |
|
|
|
1,8 - 2,0 |
|
|
Thickness |
|
|
|
|
from 0.4 to 6 |
|
Estimated weight of paronite, (table shows weight of sheets of corresponding sizes) |
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|
Grade |
Thickness of sheets, mm. / Weight (for 1 sheet, kg) |
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|
Dimension of sheets, m |
0,4 |
0,6 |
0,8 |
1 |
1,5 |
2 |
3 |
4 |
5 |
6 |
|
PON and PMB (ПОН и ПМБ) |
|
|||||||||
|
1*0,75 |
0,7 |
1 |
1,3 |
1,5 |
2,3 |
2,9 |
4,5 |
5,7 |
6,7 |
8 |
|
1*1,5 |
1,3 |
2 |
2,7 |
3,2 |
4,7 |
6 |
9 |
11,3 |
14,6 |
19 |
|
1,5*1,5 |
1,9 |
3,0 |
4,0 |
4,9 |
7,0 |
9 |
13,9 |
18,5 |
22,9 |
29 |
|
1,5*1,7 |
2,1 |
3,2 |
4,3 |
5,3 |
7,5 |
9,7 |
15,1 |
19,9 |
25,8 |
32,3 |
|
1,5*3 |
3,8 |
5,7 |
7,6 |
9,5 |
12,4 |
17,1 |
26,5 |
35,2 |
48,5 |
57 |
|
1,7*3 |
4,3 |
6,4 |
8,6 |
10,7 |
13,1 |
19,3 |
31,2 |
39,8 |
52,7 |
64,5 |