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- CUTWATER? | Eng-Tips
The "cutwater" is located in the discharge casing of a centrifugal pump and it directs the product discharge from the impeller into the discharge volute Along with the impeller, the cutwater can suffer damage from cavitation
- cutwater | Eng-Tips
Hello Does anybody know where I can get an information about the shape of cutwater in the centrifugal pumps and its influence on vane-pass frequency? Thanks
- Effects of worn cutwater throat in pump | Eng-Tips
Hi everyone, I have been searching online for information about the effects of a worn cutwater throat in pumps but have not been too sucessful Can anyone help ? Thanks alot
- Drooping head pump head curve | Eng-Tips
We have testd three high head multi-stage pump in LNG LPG and obseved that all three pumps (Sp speed 800, 1000, 1250) have drooping head curve Is there any solution or method to change this performance to continously rising curve to shutoff head by reworking on existing impller or
- High BPF (3x) at Velocity and ENV measurements | Eng-Tips
Increasing cutwater clearance beyond 20% and decreasing pump rotational speed both tend to reduce the number of harmonics present and their signal to noise ratio above the broadband level If streaming inlet vortices are involved then the problem is upstream of the pump impeller
- Centrifugal Pump into Empty Main | Eng-Tips
The impellor is overhung How would the cutwater cause problems at low heads during start up main filling that it wouldnt have during normal operation? Also why would the turbine type pump (axial?) not have problems operating away from its BEP? Wouldnt it have vibration problems due to pressure variations and dynamic imbalnces?
- Effect of excessive back clearance on re-circulation in pump
Does anyone have any specific knowledge about the effect on the H-Q curve of excessive clearance between the impeller and the back liner casing of a simple end-suction centrifugal pump? I presume that internal recirculation will increase and that power goes up without an aparrent increase in
- Barske Impeller | Eng-Tips
Robjack, As stated above the Barske (also written as Barski)impeller is one of the two keys to low flow high head pump design The other important ingredient is a concentric casing (rather than eccentric with a cutwater) This allows liquid to stay in the casing for more than one revolution around the casing, without the associated recirculation difficulties of cutwater volute designs It
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