• 1. Draining valve: 疏水阀 | 排水阀 | 放泄阀泄水阀泄油阀 | 放泄阀
• 2. self-draining valve: 自动排液阀 | 自动排放阀 | 主动排液阀 | 不佣人的劳力排液阀
• 3. oil draining valve: 排油阀 | 放油活门

更多释义

• 1.The utility model is especially suitable for the draining valve with big caliber and big displacement.
  对大口径、大排量疏水阀尤为实用。
  dict.yoduao.com
• 2.The utility model can prevent the discharge-orifice steel columns of the upper draining valve cover from cracking, increase the service life of oil-well pumps, and lower oil-production cost.
  本实用新型可防止抽油泵在采油过程中上排出阀罩出油孔筋柱裂断，提高抽油泵的使用寿命，降低采油成本。
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• 3.When boiler need big volume draining or level regulation valve failed to work, there should open bypass valve to draining.
  当锅炉需要大量排污时，或液位调节阀故障时，应开通旁路阀加大排污。
  dict.yoduao.com

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