Rubber Lining

Rubber Lining
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The raw materials are imported, such as butyl rubber (USA EXXON MOBIL 1066, Japan JSR 268), natural rubber (Vietnam SVR 3L), chloroprene rubber (Japan DENKA M40). According to differences of compounds, the rubber lining has the following types: HNR, SNR, IIR and CR. According to the vulcanization methods, the rubber lining can be divided into press vulcanization, atmospheric pressure vulcanization and prevulcanization type. Seawater resistant, sodium hypochlorite resistant or low calcium and magnesium specialty rubber linings are also available.

Type Model Color Physical properties Working pressure MPa Max. working temperature ℃ Vulcanization pattern Applications
Hardness Hs Tensile strength Mpa Elongation (%) Metal binding force
IIR KI KI -5 Black A57±7 ﹥5.88 >300 >6kg/cm ≧-0.098 100 Press vulcanization standard type, resistant to sulfuric acid and fluoric acid
KI-15 Black A62±7 ﹥5.88 300 >6kg/cm Vulcanization at atmospheric pressure On-site lining, other features are as same as the KI-5
KI -7 Black A57±7 ﹥5.88 300 >6kg/cm Press vulcanization NaClO resistant, black rubber
KI-17 Black A62±7 ﹥5.88 300 >6kg/cm Vulcanization at atmospheric pressure On-site lining, other features are as same as the KI-7
KI-5S Black A52±7 ﹥3.92 >300 >6kg/cm Pre-vulcanized Steam vulcanization is not needed. Applicable to on-site lining without steam.
HNR KH KH-5 Black D80±10 ﹥29.00 15-50 80kg/cm2 ≧-0.098 100-120 Press vulcanization Corrosion-resistant under high-temperature (mercury electrolytic device, water treatment device, HCI, CI, alcohol recycling device)
KH-7 Black D75±10 ﹥19.60 >10 80kg/cm2 85 Press vulcanization Standard type, acid resistant (hydrochloric acid, dilute sulfuric acid), base resistant, saline solution resistant, highly flexible and impact resistant
KH-7I Black D75±10 ﹥19.60 30-60 80kg/cm2 Press vulcanization Standard type, HNR, low Ca and Mg ion content. Applicable to vessels and pipelines with ionic membrane caustic soda units
KH-8 Black D80±10 ﹥19.60 30-60 80kg/cm2 Press vulcanization Specially designed for fluorine proof
KH-15 Black D70±10 ﹥14.70 >5 40kg/cm2 Vulcanization at atmospheric pressure On-site lining, light organic solvent resistant, SO resistant
KH-16 Black D70±10 ﹥14.70 1-30 40kg/cm2 85 Vulcanization at atmospheric pressure Laminating on SNR as the interlining. On-site lining
KH-20 Black D75±10 ﹥14.70 1-30 40kg/cm2 Vulcanization at atmospheric pressure Low Ca and Mg ion content. Applicable to vessels and pipelines with ionic membrane caustic soda units. On-site lining.
8501 Black D80±10 ﹥14.70 ﹥10 60kg/cm2 Press vulcanization Hard rubber, water treatment devices
Semi-hard rubber 8502 Black D60±10 ﹥10 ≧30 ≧6.0 ≧0.98 85 Press vulcanization Standard half hard rubber, applicable to nuclear and thermal power plants and water treatment devices.
SNR KR KR-4 Black D42±7 ﹥15.7 >500 >6kg/cm ≧-0.098 85 Press vulcanization Abrasion resistant to granules
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