Available pump seat materials for Verderair VA series pumps

Acetal

Wide range of solvents resistant and whitstands extreme fatigue. Good level of abrasion resistance. Not for use with acids or bases. 

Polypropylene

Wide chemical compatible. Low cost alternative for general purpose chemical transfer.

PVDF (Kynar)

Excellent chemical resistance. (near PTFE but cheaper). Good abrasion and high temperature resistance.

铝

介质耐腐蚀性和耐磨性。不用于卤化烃，强酸或强碱。

Stainless Steel 316

高耐腐蚀性和耐磨性。能处理卤化碳。

Hardened Steel

适度的耐化学性。良好的耐磨性。

BUNA N

适用于水、石油和烃类流体。不能与强溶剂或化学品一起使用。

Geolast

Good abrasion resistance. Similar chemical compatibility as Buna N.

Hytrel (TPE)

Often used as substitute for Buna N. 

Santoprene

Good abrasion and chemical resistance. Not for use with solvents or hydrocarbons. Often substitute for EPDM.

Fluorelastomers (Viton)

High level of corrosion resistance with acids. Good resistance for steam and unleaded fuels.

Polychloroprene (Neoprene)

Very soft rubber. Good for abrasion. Limited resistant for corrosion.