A variable range for your application: A heart adapts its performance capacity to the energy demand. This is exactly how SCHERZINGER adapts its pumps to the application area of your concrete application. Our gray cast iron pumps are available in various designs and in numerous configurations – so you will always have the ideal properties.

Gray cast iron pumps from SCHERZINGER
– they just fit!

Application area According to need: variable configurable.	Design According to application: various seal designs.	Construction According to request: Gerotor pumps or external or internal gear pumps.

Gray cast iron pump with shaft seal

Size	Geometric conveyed volume [ ml / u ]	Maximum rotation speed [ 1 / min ]	Maximum volume flow [ l / min ]	Maximum differential pressure [ bar ]	Maximum input pressure [ bar ]	Viscosity [ mPas ]	Temperature range [ °C ]
51 76	2.1 2.8 *	1800	3.8 5.0	25 40	10	2 … 30,000 1 … 50,000	-20 … 160 -40 … 250
101 151 251	4.0 5.7 10.9 *	1800	7.2 10 19	25 3040	10	2 … 30,000 1 … 50,000	-20 … 160 -40 … 250
351 451 551	20.9 31 49 *	1800	38 56 88	30 40	10	2 … 30,000 1 … 50,000	-20 … 160 -40 … 250

* maximum possible applicatin area with application-specific and constructive adjustments

Possible shaft seals

Types	Materials
Radial shaft seal Double-acting radial shaft seal Gland packing	PTFE NBR FKM EPDM

Hermetically sealed gray cast iron pumps

Size	Geometric conveyed volume [ ml / u ]	Maximum rotation speed [ 1 / min ]	Maximum volume flow [ l / min ]	Maximum differential pressure [ bar ]	Maximum input pressure [ bar]	Viscosity [ mPas ]	Temperature range [ °C ]
5020	13 21 35 50 *	1800	23 38 63 90	50 30 20 15 60	60 160	2 … 6000 0.5 … 50,000	-30 … 160 -40 … 250

*maximum possible application area with application-specific and constructive adjustments