Select the pump 2

2、According to the physical and chemical properties of media in pump selection material combination of pump

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	NR	NBR	FOOD-ORTENTED RUBBER	EPDM	FPM
Water (includng waste water)	◎	◎	●	◎	●
Animal oil and vegetable oil	×	◎	●	×	◎
Mineral oil	×	●	●	×	◎
Ammonia water	×	●	●	×	×
Fatty solvernts	×	×	×	×	●
Aromatic solvents	×	×	×	×	●
Thick alkaline	●	●	●	●	●
Thick nitric acid	×	×	×	×	▲
Glacial acetic acid	×	●	●	×	●
Thin sulfuric acid	×	×	×	●	●
Thick sulfuric acid	×	×	×	▲	●
Thin hydrochioric acid	●	●	●	●	●
Thick hydrochioric acid	×	×	×	●	●
Hot water	×	▲	▲	●	×
Gasoline	×	●	●	×	●
Kerosene	×	●	●	×	◎
Diesel oil	×	●	●	×	●
Chiorated hydrocarbon	×	×	×	×	▲
Ketone containing materials	×	×	×	×	▲
Alcohol containing materials	●	●	●	●	●
Fat containing materials	×	×	×	●	×
Easter containing materials	×	×	×	●	×
Slurry	●	●	▲	●	▲
Max.temperrature resistance	70℃	90℃	90℃	180℃	130℃
Wear resistance	◎	●	●	◎	◎
Aging resistance	●	●	●	◎	◎
Ozene resistance	×	×	×	◎	◎
Radiation resistance	▲	▲	▲	▲	×
Fire reasistance	×	●	●	◎	×
Steam resistance	●	●	●	◎	◎

NOte:a.the food-oriented rubber does not contain assitives detrimental to human health　

　　 b、◎Excellent ●Good ▲Moderate ×Poor

Aterials for rotor and overcurrent parts	Performance and applications
45 HT200	With poor corrosion resistance, it is suitable for ordinary media.
1Cr18Ni9Ti ZG1Cr18Ni9Ti	Resist ordinary corrosive media
1Cr8Ni12Mo2Ti ZG1Cr18Ni12M02Ti	Resist acids and alkaline