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還有一種食品級橡膠軟管泵,它的內襯的橡膠層需要達到了食品衛(wèi)生的要求,同時也需要符合EHEDG或者其他衛(wèi)生級的要求。還有三元乙丙橡膠軟管泵,這種一般適用于絕大多數腐蝕性的化學物質和無機物,內襯橡膠層由三元乙丙橡膠構成,外層也是完整的三元乙丙橡膠。這樣的軟管具備很強的抗化學腐蝕的特性。以及CSM軟管泵,它適用于特別腐蝕性的化學介質,如:強氧化溶劑。軟管的內層是CSM,外層是天然橡膠。運行溫度達到85℃/185°F。
There is also a food-grade rubber hose pump. Its rubber layer must meet food hygiene requirements, and it must also meet EHEDG or other sanitary requirements. There is also a EPDM hose pump, which is generally suitable for most corrosive chemicals and inorganic materials. The inner rubber layer is composed of EPDM rubber, and the outer layer is also a complete EPDM rubber. Such hoses have strong chemical resistance. And CSM hose pump, it is suitable for particularly corrosive chemical media, such as: strong oxidizing solvents. The inner layer of the hose is CSM and the outer layer is natural rubber. Operating temperature reaches 85 ° C / 185 ° F.
與擠塑輪結構設計相比,膠管泵的滑靴設計能承受更高的壓力,因此要根據泵的需求壓力和具體應用情況來決定哪種設計適合。擠壓輪設計只需在軟管表面涂上硅脂,不需要額外的潤滑油,因為滾筒在軟管表面“滾動”。因此,該設計可考慮用于涉及食品和飲料的應用,因為在軟管故障和斷裂的情況下,交叉污染的概率小于浸沒在潤滑油中的拖鞋設計蠕動泵的概率,即使油是“食品級”,通常也 使用滾筒設計。