The issue of choosing between single-screw pumps and twin-screw pumps
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A new transfer station is being built in the facility; the pump to be used for transporting crude oil needs to be selected. The designed viscosity of the crude oil is 10,000 MPa, its water content is 50%, the temperature is 65 degrees Celsius, the flow rate required is 60 m3/h. The fluid contains a small amount of sand, and the required head is 300 meters. Considering factors such as adaptability, equipment reliability, and ease of maintenance, it is necessary to determine whether a single-screw pump or a twin-screw pump would be more suitable.
Of course, it’s a twin-screw pump. This flow rate and pressure are exactly within its operating range.
A single-screw pump is a better choice; it is also cheaper and easier to maintain.
You can choose from either pump! However, for single-screw pumps, it’s basically impossible to find ones with such performance made in China; Nachi should have them. There are many companies in Tianjin that offer twin-screw pumps within this performance range! As for whether the price is good, it’s hard to say!
I recommend choosing a twin-screw pump.
A twin-screw pump should be a good choice, I guess. Our company uses it for its fuel oil.
“You can choose from either pump! However, for single-screw pumps, it’s basically impossible to find ones with such performance made in China; Nachi should have them. There are many companies in Tianjin that offer twin-screw pumps within this performance range! As for whether the price is good, it’s hard to say! ” Agree with the view from floor 4. Nechi single-screw pumps can reach up to 4.8 MPa or even higher, so they are a viable option. As for twin-screw pumps, it is easy to find this discharge pressure range. However, when selecting a screw pump, the impact of sand particle size on the twin screws should be taken into consideration.
The plant is used for transporting crude oil; since it contains water and sand, a single-screw pump is certainly more suitable.
It is recommended to use a single-screw pump; high viscosity makes it unsuitable for double-screw pumps, based on my experience
Previously, a single-screw pump was selected for transporting pure glycerin. The effect is quite good. It’s just that its properties are different from those of petroleum-based materials