新型输送机械气动隔膜泵隔膜膜片密封件的选材方法！(图文)
气动隔膜泵隔膜膜片密封件是一种新型输送机械，是目前中国最具创新性的泵型。东晟密封件告诉您除了泵体材料外，确保隔膜膜片密封件泵的良好使用也是附件材料的重要选择，其中隔膜膜片密封件材料是最重要的一种。
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.
1、三元橡胶隔膜膜片密封件：是极端低温泵的最佳选择，最低温度为-51℃。它也可用于泵送稀酸或低腐蚀性液体
2、聚四氟乙烯隔膜膜片密封件：泵送高腐蚀性流体的绝佳选择，如硫酸、香水、氯化烃、酮和乙酸盐。
3、氯丁橡胶隔膜膜片密封件：一种出色的通用隔膜膜片密封件，适用于非腐蚀性液体的运输，如污水处理、自来水或海水，具有优异的灵活性、经济性和耐用性。
4、丁腈橡胶隔膜膜片密封件：是输送含铅汽油、柴油、液压油、煤油等石油和油性液体的绝佳选择。该隔膜膜片密封件更适合输送比重和稠度高的无腐蚀性浆料。
5、氟橡胶隔膜膜片密封件：用于超高温流体泵送的最佳选择。最大温度电阻为176度。它还可以输送一些腐蚀性液体，如香精、氯化烃、强腐蚀性酸、碱和其他化学介质。
特氟龙隔膜膜片密封件（teflon）具有优异的耐腐蚀性-能够承受熔融碱金属、氟化介质以及300℃以上的氢气和氧气
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 ℃. 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 ℃
二、氟塑橡胶隔膜膜片密封件的特点所在：
所有强酸（包括王水）、强氧化剂、还原剂和氯化钠以外的各种有机溶剂的作用。极强的绝缘电阻-不受环境和频率的影响，体积电阻高达1018欧姆/厘米，介电损耗低，击穿电压高。优异的耐高温和耐低温性能-温度变化小，温度范围广，可在190℃和+260℃的温度下使用。独特的自润滑财产——在塑料中摩擦系数最小，是一种理想的无油润滑材料。凸出的表面不粘——已知的固体材料不能粘附在表面，是一种表面能最小的固体材料。优异的耐大气老化性、抗辐射性和低渗透性-长期暴露在大气中，表面和性能不变。
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 ℃ and+260 ℃. 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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