Items | White High Temperature acid resistant PTFE Gasket Heat Oil Resistant Seal Flat PTFE Gasket |
Material | pure ptfe |
Temperature | -180~+260ºC |
Size | DN60-DN800 |
Thickness | 1.5/3/5mm |
Apparent density | 2.1~2.3g/cm³ |
Tensile strength | ≥15Mpa |
Ultimate elongation | ≥150% |
Dialectic strength | ≥10KV/mm |
PTFE tube is fabricated by quality PTFE extrusion and sintering. Sintering is the conventional process of converting powdery material into dense body, which is early utilized for production of ceramic, refractory and hyperthermal materials and powder metallurgy. Generally, the sintered dense body after powder forming is a polycrystalline material with microstructure composed of crystal, vitreous body and pore. The sintering process determines the size of crystal particle and pore in the microstructure, crystal boundary shape and distribution, thus affecting the material properties.
1.Low and hight temperature resistance
2.Corrosion resistance, weather resistance
3.High lubricity, no adhesion
4.Non-toxic
5. Non-flammable
6.Acid and alkali resistance
7.Antioxidant
Screw Threa d | Φ1.6 | Φ2 | Φ2.5 | Φ3 | (Φ3.5) | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 | Φ12 | (Φ14) | Φ16 | (Φ18) | Φ20 | |
d | min=nominal size | 1.7 | 2.2 | 2.7 | 3.2 | 3.7 | 4.3 | 5.3 | 6.4 | 8.4 | 10.5 | 13 | 15 | 17 | 19 | 21 |
max | 1.84 | 2.34 | 2.84 | 3.38 | 3.88 | 4.48 | 5.48 | 6.62 | 8.62 | 10.77 | 13.27 | 15.27 | 17.27 | 19.33 | 21.33 | |
dc | max=nominal size | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 16 | 20 | 24 | 28 | 30 | 34 | 37 |
min | 3.7 | 4.7 | 5.7 | 6.64 | 7.64 | 8.64 | 9.64 | 11.57 | 15.57 | 19.48 | 23.48 | 27.48 | 29.48 | 33.38 | 36.38 | |
h | Pitch | 0.3 | 0.3 | 0.5 | 0.5 | 0.5 | 0.8 | 1 | 1.6 | 1.6 | 2 | 2.5 | 2.5 | 3 | 3 | 3 |
max | 0.35 | 0.35 | 0.55 | 0.55 | 0.55 | 0.9 | 1.1 | 1.8 | 1.8 | 2.2 | 2.7 | 2.7 | 3.3 | 3.3 | 3.3 | |
min | 0.25 | 0.25 | 0.45 | 0.45 | 0.45 | 0.7 | 0.9 | 1.4 | 1.4 | 1.8 | 2.3 | 2.3 | 2.7 | 2.7 | 2.7 | |
Screw Thread d | (Φ22) | Φ24 | (Φ27) | Φ30 | (Φ33) | Φ36 | (Φ39) | Φ42 | (Φ45) | Φ48 | (Φ52) | Φ56 | (Φ60) | Φ64 | ||
d | min=nominal size | 23 | 25 | 28 | 31 | 34 | 37 | 42 | 45 | 48 | 52 | 56 | 62 | 66 | 70 | |
max | 23.33 | 25.33 | 28.33 | 31.39 | 34.62 | 37.62 | 42.62 | 45.62 | 48.62 | 52.74 | 56.74 | 62.74 | 66.74 | 70.74 | ||
dc | max=nominal size | 39 | 44 | 50 | 56 | 60 | 66 | 72 | 78 | 85 | 92 | 98 | 105 | 110 | 115 | |
min | 38.38 | 43.38 | 49.38 | 55.26 | 58.8 | 64.8 | 70.8 | 76.8 | 83.6 | 90.6 | 96.6 | 103.6 | 108.6 | 113.6 | ||
h | Pitch | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | |
max | 3.3 | 4.3 | 4.3 | 4.3 | 5.6 | 5.6 | 6.6 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | ||
min | 2.7 | 3.7 | 3.7 | 3.7 | 4.4 | 4.4 | 5.4 | 7 | 7 | 7 | 7 | 9 | 9 | 9 |