Miniature vacuum pump vacuum adjustment

Many miniature vacuum pumps do not have the ability to adjust the degree of vacuum. Only by adjusting the valve. For example, a precise pressure relief valve is connected to the pumping end of the pump. When the vacuum is high, the valve is opened and the vacuum is lowered. This fine pressure relief valve also has the directional discharge of toxic gases, etc., to the designated container's channel, which is a lot of valves have no function.

If you want to make it simpler, you can use an intelligent vacuum pump. There are buttons on the pump, you can set the negative pressure, and the LCD panel shows negative pressure. There is also a knob that can adjust the flow of large and small. This intelligent vacuum pump, also known as AC vacuum pump, digital vacuum pump.

Hydraulic Engineering Percussion Drilling Rig

Percussion drilling is a manual drilling technique in which a heavy cutting or hammering bit attached to a rope or cable is lowered in the open hole or inside a temporary casing. The technique is often also referred to as 'Cable tool'. Usually a tripod is used to support the tools. By moving the rope or cable up and down, the cutting or hammering bit loosens the soil or consolidated rock in the borehole, which is then extracted later by using a bailer. Just as with hand augering, a temporary casing of steel or plastic may be used to prevent the hole from collapsing. When the permanent well screen and casing are installed, this temporary casing has to be removed.

The percussion borehole drilling rig's technical advantages:

- Unlike any other drilling method, percussion can remove boulders and break harder formations, effectively and quickly through most types of earth.
- Percussion drilling can in principle deal with most ground conditions.
- Can drill hundreds of feet (one well hand-drilled in China in 1923 was over 4000 feet deep).
- Can drill further into the water table than dug wells, even drilling past one water table to reach another.

Hydraulic Engineering Percussion Rig,Big Cable Percussion Drilling Rig,Large Diameter Construction Percussion Rig

Henan YikYui Prospecting Machinery Co., Ltd , https://www.yikyui-rig.com