| Place of Origin: | China (Mainland) |
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| Brand Name: | Yinlong |
| Model Number: | KSTF |
| Material: | Rubber & Carbon Steel |
| DN: | 300-3000mm |
| Temperature: | -30-120 Degree |
| Length: | 450-650mm |
| Connection: | Flange |
| Model NO: | KSTF |
Quick Details
Specifications
China National Standards Drafting Unit of Rubber Joint
Qualified Joint Supplier in Nuclear Power Plant
Double Rubber Expansion Joint (KSTF) is a kind of flexible connection, mainly used to deliver liquid, gas, solid, etc. It adopts sphere body structure to compensate displacement, insulate vibration and reduce noise, which is a new rubber damping product.
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2. Material List : |
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No. |
Name |
Material |
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1) |
Inner rubber |
IIR, CR, EPDM, NR, NBR |
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2) |
Outer rubber |
IIR, CR, EPDM, NR, NBR |
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3) |
Framework layer |
Polyester cord fabric |
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4) |
Flange |
Q235 |
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5) |
Reinforcing ring |
Steel wire rope |
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3. Physical and Mechanical Properties of Rubber Expansion Joint : |
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No. |
Item |
index |
Measured value |
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Inner/outer rubber lining |
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1) |
Tensile strength (Mpa) |
≥12 |
13.5 |
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2) |
Tensile yield (%) |
≥450 |
560 |
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3) |
Tension set at break (%) |
≤25 |
20 |
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4) |
Hardness (Shore A hardness) |
60±5 |
60 |
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5) |
Brittleness temperature (°C) |
≤-30 |
-40 |
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6) |
Cohesive strength (between cord fabric) (KN/m) |
≥2.0 |
4.8 |
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7) |
100°C*48h |
Rate of Tensile Strength Reduction |
≤25 |
15 |
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Rate of Ultimate Elongation Reduction |
≤30 |
20 |
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8) |
Mass change (10%H2SO4*Room temperature) % |
≤3 |
2 |
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9) |
Mass change (10%H2SO4*Room temperature) % |
≤3 |
2 |
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4. Technical Parameters for Double Sphere Flexible Rubber Joint: |
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DN |
FF Length |
Axis displacement |
Radial displacement |
Deflexion |
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Type-I |
Type-II |
Type-I |
Type-II |
Type-I |
Type-II |
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mm |
inch |
Extension |
Compression |
Extension |
Compression |
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32 |
1?″ |
165 |
30 |
50 |
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45 |
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±7.5° |
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40 |
1?″ |
165 |
30 |
50 |
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45 |
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±7.5° |
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50 |
2″ |
165 |
30 |
50 |
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45 |
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±7.5° |
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65 |
2?″ |
175 |
30 |
50 |
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45 |
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±7.5° |
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80 |
3″ |
175 |
30 |
50 |
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45 |
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±7.5° |
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100 |
4″ |
225 |
35 |
50 |
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45 |
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±7.5° |
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125 |
5″ |
225 |
35 |
50 |
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45 |
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±7.5° |
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150 |
6″ |
225 |
35 |
50 |
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45 |
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±7.5° |
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200 |
8″ |
325 |
35 |
60 |
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250 |
10″ |
325 |
35 |
60 |
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300 |
12″ |
325 |
35 |
60 |
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350 |
14″ |
325 |
35 |
60 |
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400 |
16″ |
400 |
40 |
60 |
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450 |
18″ |
400 |
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65 |
70 |
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70 |
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±12° |
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500 |
20″ |
400 |
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65 |
70 |
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70 |
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±12° |
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600 |
24″ |
400 |
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70 |
75 |
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75 |
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±12° |
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700 |
28″ |
450 |
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70 |
75 |
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75 |
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±12° |
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800 |
32″ |
450 |
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70 |
75 |
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75 |
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±12° |
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900 |
36″ |
450 |
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70 |
75 |
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75 |
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±12° |
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1000 |
40″ |
500 |
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75 |
80 |
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70 |
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±12° |
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1200 |
48″ |
500 |
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75 |
80 |
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70 |
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±10° |
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1400 |
56″ |
500 |
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75 |
80 |
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70 |
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±10° |
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1600 |
64″ |
500 |
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75 |
80 |
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70 |
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±10° |
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1800 |
72″ |
550 |
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80 |
85 |
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65 |
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±10° |
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2000 |
80″ |
550 |
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80 |
85 |
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65 |
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±10° |
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2200 |
80″ |
550 |
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80 |
85 |
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65 |
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±10° |
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2400 |
96″ |
550 |
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80 |
85 |
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65 |
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±10° |
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2600 |
104″ |
550 |
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80 |
85 |
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65 |
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±10° |
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2800 |
112″ |
550 |
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80 |
85 |
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65 |
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±10° |
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3000 |
120″ |
550 |
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80 |
85 |
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65 |
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±10° |
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