Roots vacuum pump

Roots vacuum pump is a rotary volumetric vacuum pump. Its structure is evolved from a Roots blower. First appearing in Germany in 1944, it was used as a mechanical booster pump to accommodate vacuum melting systems with large pumping speeds in the 10-1000 Pa pressure range. According to Roots vacuum ---MORE---

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Oil-free dry mechanical vacuum pump

Oil-free dry mechanical vacuum pump (also referred to as dry mechanical pump) refers to the pump can start pumping under atmospheric pressure, but also will be pumping gas directly to the atmosphere, the pump chamber without oil or other working medium, and Pump ultimate pressure and oil-sealed vacu ---MORE---

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Four plants in Daqing Oilfield four straight screw pump…

CNOOC News: (Correspondent Huang Haitao) Fourth Oil Production Plant, Daqing Oilfield No.4 oil miner installed in the apricot 4-2-705 well without the reducer directly driven screw pump safe and stable operation of the current year, marking the screw pump technology test success. In order to solve t ---MORE---

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Scroll oil-free dry mechanical vacuum pump

Scroll oil-free mechanical vacuum pump is a new type of dry mechanical vacuum pump evolved from the scroll compressor. Scroll oil-free mechanical vacuum pump works. The curve constituting the volute for the scroll vacuum pump is involute. Fixed vortex called stator, rotating vortex called the rotor. ---MORE---

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Injection molding equipment hydraulic pump oil selectio…

Due to the current type of hydraulic equipment in injection molding equipment more, the same type of pump due to power, speed, pressure, flow, metal and other factors, the choice of hydraulic oil more complicated. In general, low-pressure pump HL oil can be used for medium and high pressure pump sho ---MORE---

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Application of high efficiency and energy saving circul…

Abstract: Various water-saving and energy-saving measures are widely implemented in power project construction. Especially in the preliminary design phase of power plant, from technical scheme design to equipment model selection, from environmental protection to labor safety, water conservation, ene ---MORE---

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XuanDa Industrial Group "strong corrosion resistan…

Developed by Zhejiang XuanDa Industrial Group Co., Ltd., the strong acid-resistant dilute acid pump has passed the inspection of Zhejiang Science and Technology Plan Project. Experts agree that the product design is reasonable, advanced performance, with a number of independent innovation technology ---MORE---

This entry was posted in 201804 on