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Pneumatic diaphragm pump diaphragm seal is a new type of conveying machinery and is currently the most innovative pump type in China. Qisheng New Materials tells you that in addition to the pump body material, ensuring the good use of the diaphragm diaphragm seal pump is also an important choice of accessory materials, among which the diaphragm diaphragm seal material is the most important one.
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The diaphragm seal of the pneumatic diaphragm pump includes:
1. Three element rubber diaphragm seal: it is the best choice for extreme cryopump, and the minimum temperature is - 51 ¡æ. It can also be used to pump dilute acids or low corrosive liquids
2. PTFE diaphragm seal: an excellent choice for pumping highly corrosive fluids, such as sulfuric acid, perfume, chlorinated hydrocarbon, ketone and acetate.
3. Neoprene diaphragm seal: An excellent universal diaphragm seal suitable for the transportation of non corrosive liquids, such as sewage treatment, tap water, or seawater, with excellent flexibility, economy, and durability.
4. Nitrile rubber diaphragm seal: It is an excellent choice for transporting petroleum and oily liquids such as leaded gasoline, diesel, hydraulic oil, kerosene, etc. This diaphragm seal is more suitable for conveying non corrosive slurry with high specific gravity and consistency.
5. Fluorine rubber diaphragm seal: The best choice for ultra-high temperature fluid pumping. The maximum temperature resistance is 176 degrees. It can also transport some corrosive liquids, such as essence, chlorinated hydrocarbon, strong corrosive acid, alkali and other chemical media.
Teflon diaphragm seals (Teflon) have excellent corrosion resistance - able to withstand molten alkali metals, fluorinated media, as well as hydrogen and oxygen above 300 ¡æ
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The characteristics of fluoroplastic diaphragm seals are:
The effects of all strong acids (including aqua regia), strong oxidants, reducing agents, and various organic solvents other than sodium chloride. Extremely strong insulation resistance - not affected by environment and frequency, with a volume resistance of up to 1018 ohms/cm, low dielectric loss, and high breakdown voltage. Excellent high and low temperature resistance - with small temperature changes and a wide temperature range, it can be used at temperatures of 190 ¡æ and+260 ¡æ. Unique self-lubricating property - with the smallest friction coefficient in plastic, it is an ideal oil-free lubricating material. A protruding surface is not sticky - known solid materials cannot adhere to the surface and are a type of solid material with the smallest surface energy. Excellent atmospheric aging resistance, radiation resistance, and low permeability - long-term exposure to the atmosphere, with unchanged surface and performance.
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