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A102 material guide Application Data Material Guide Document Number A ? EnviroTech Pumpsystems leads the slurry pump industry by o ?ering an extremely broad range of abrasion and corrosion resistant materials speci ?cally formulated to meet customer needs

Application Data Material Guide Document Number A ? EnviroTech Pumpsystems leads the slurry pump industry by o ?ering an extremely broad range of abrasion and corrosion resistant materials speci ?cally formulated to meet customer needs A critical part of any successful pump application is the correct selection of the materials of construction ? The suspended particles in slurry cause abrasive wear on pump components due to a combination of impact and sliding action Physical characteristics of the abrasive slurry include size shape density angularity and hardness of the suspended solids ? Alloys with good corrosion resistance usually have low wear resistance Abrasive slurries with corrosives sign ?cantly increase the wear rate of these metal alloys ? Material selection should be based on temperature particle size oil chemical resistance and peripheral speed limitations Elastomers exhibit exceptional wear and corrosion resistance while being cost e ?ective Speci ?c elastomers are selected in the majority of applications where the particle size is below inch and the temperature is within the limit of the appropriate elastomer Elastomer Chart Physical properties based on laboratory control test data obtained in accordance with ASTM Standards Section Actual results may vary This data does not constitute a warranty or guarantee and is merely presented for the purpose of illustrating typical properties Elastomer Number Elastomer Type Color Speci ?c Gravity Durometer Shore A Bashore Resilience Maximum Temperature oF ASTM D Designation Natural Rubber Natural Rubber Natural Rubber Natural Rubber Natural Rubber Natural Rubber Neoprene Neoprene Neoprene Hypalon Urethane EDPM Butyl Nitrile Nitrile Viton Black NR Gray NR Tan NR White NR Black NR Black ?? NR Black ?? CR Black ?? CR White ?? CR Black ?? CSM Blue EU Black ?? EDPM Black ?? IIR Black ?? NBR Black ?? NBR Black ?? FPM trademark of Dupont Page of ? Weir Slurry Group All rights reserved Home CApplication Data Document Number A Description Applications Natural Rubber Black Hardness Durometer Shore A A carbon ?lled natural rubber Has better tear Temperature Limitation o F resistance and slightly better chemical resistance than pure gum at the sacri ?ce of some wearresistance Excellent impact type abrasion resistance Has impeller tip speed limitation of fpm Excellent general purpose compound used in industrial and mining applications Resistant to moderate chemical acids bases and alcohols Attacked by ozone and strong acids Will swell in the presence of fats oils greases and most hydrocarbons Natural Rubber Gray Hardness Durometer Shore A Best combination of high hardness and resilience Temperature limitations o F Good resistance to impinging type abrasion equal to Excellent for high abrasion applications in mining ??pure gum ? compound and gravel industries Good wear resistance when pumping occosional large particles Resistant to moderate chemicals acids bases and alcohols Attacked by ozone and strong acids Will swell in the presence of fats oils greases and most hydrocarbons Gum Rubber Tan Highest quality most resilient pure gum rubber available Best wear-resistant elastomer available with the highest impact resistance for particles up to ? in size