Effects of Impeller Diameter on High-Speed Rescue Pump

Table 1

Main parameters of original high speed rescue pump.

GPQ200-300
(m^3/h)	(m)	(rpm)
200	300	6000	71.46
Impeller		Diffuser vane
/mm	65	/mm	253
/mm	125	/mm	360
/mm	248	/mm	310
/°	32	/°	11.4
/mm	15	/mm	22
γ/°	135	/mm	30
	7		9