Ask for help: I want a high-lift, low-flow screw pump.
Thread Content
I need a screw pump with a head between 8.5MPa-10MPa and a flow rate of 100L/h. If the flow rate is not so small, the flow rate can be larger if the head is satisfied. The medium of the pump is additive, which is weakly corrosive, so the best material is 317 or 316. I have not measured the viscosity of the additive at room temperature, which is similar to minus four oils. This post was last edited by cp0523 on 2009-3-12 18:25 ]
The traffic is too small. Take a look at our pump manual. The pressure and material are no problem. It is difficult to handle such small traffic.
As far as I know, screw pumps do not seem to be suitable for the high head and low flow conditions you mentioned, but reciprocating pumps and high-speed pumps are more suitable. Why must you choose a screw pump?
It is recommended to choose a high-speed pump so that you can meet the process conditions of small flow rate and high head:) :)
The pump requirements are a bit special. You can consult a professional screw pump manufacturer to see if they have made such a pump.
We are currently using a plunger pump. The single-way valve at the outlet of the pump often breaks down due to frequent movements and the relatively high viscosity of the medium. It needs to be repaired twice a week on average. In addition, the medium needs to be heated to have better fluidity, and the pump body is also old and broken. A colleague of mine saw at BASF in Germany that a small screw pump was used in a device, so I also wanted to replace the plunger pump with a screw pump.
If there is a large-flow screw pump with a flow rate of about 60 cubic meters and a head of 8.5MPA-10MPA, you can also introduce it to me. It can be used as the main pump for reactor feeding, and the small pump is an additive pump.
The pump I want is a bit special, and I have been looking for it for nearly two years. :L
The high-speed pump probably stalled in less than half a day in my case. This pump is for adding additives. The main feed pumps are five high-speed pumps with 350KW motors. The plunger pump breaks down once in less than 3 days, which is annoying.
Domestic Kaiquan and Dongfang water pumps are pretty good, right?
Tianjin Pump Machinery Group is one of the most technologically advanced screw pumps in the country.
It seems that HOUTTUIN has this kind of screw pump, but the unit price is very expensive.
It's not a problem if it's expensive, as long as it's available. Haha, I'll go look for it on HOUTTUIN.
Go to Tianjin Screw Pump Factory for consultation. They produce screw pumps there and have the high-lift, low-flow screw pumps you need.
For HOUTTUIN pumps, please consult COLFAX.
Korfa’s wumiya said that they don’t have such a pump, which is depressing.
It is easier to meet process requirements with an external gear pump, and its volume is much smaller.
I also think that a screw pump can't be used. Why not use an external gear pump? ? It can fully meet the process requirements. Choose a jacketed pump body, and high viscosity is also the strength of the gear pump. As mentioned above, the size can be very small. It is estimated that the price will not be cheap, but at least it can be done. If the poster is interested, you can go and consult. This post was finally written by lxn_663 edited at 2009-3-24 20:30 ]
I thought it was a screw chiller and went to the wrong site! ! leave a footprint~~
:lol:lol:lol In such working conditions, it is better to use a metering pump.