NPSH


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AcronymDefinition
NPSHNet Positive Suction Head
NPSHNational Pipe Straight Hose (garden hose thread)
NPSHNon-Protein Sulfhydryl
References in periodicals archive ?
There was an increase of NPSH in the gills and muscle of tilapia fed with levels 1.04 and 1.22 mg [kg.sup.-1] when compared to the control treatment (Table 4; p = 0.0067 and p = 0.0002).
The condition of enhanced NPSH over the south of Japan persisted from August to October.
Consider regenerative pumps for low flow/low NPSH applications, Hydrocarbon Process (Special Report), 55-57.
NPSH level was quantified by mixing100 ul of yeast sample (treated and untreated), 1 mM of 5 dithio-bis-(2-nitrobenzoic acid) and 0.1 M reaction buffer and the reaction was completed by incubating reaction mixture at 30degC for 10 min.
Tissue NPSH measurement and gross histopathological examination were performed as described previously (Li et al.
Vibration signals are first divided into four frequency bands, and the varying trends of vibration energy versus NPSH are revealed.
We and other researches have reported that enhanced lipid peroxidation associated with decreases in the levels of nonprotein sulfhydryl (NPSH), which is mainly reduced glutathione (GSH), vitamin C (VC), that is, ascorbic acid, and vitamin E (VE) and inflammation associated with neutrophil infiltration, excessive reactive oxygen species (ROS) produced via increased xanthine oxidase (XO), and excessive nitric oxide CNO) produced via increased inducible nitric oxide synthase (iNOS) contribute to the development of WIRS-induced gastric mucosal lesions in rats [9-19].
Low NPSH versions are also available for refrigeration/cooling applications, or for pumping boiling liquids or high vapour pressure liquids, with an NPSHR down to 0.5m.
The parameters of submersible pump are: flow Q = 312-315 [m.sup.3]/s, head of the pump [H.sub.p] = 5.5-4.2 m, efficiency coefficient [eta] = 0.845-0.818, NPSH = 7.9-7.4 m.