VA Seats
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.
Aluminium
Medium corrosion and abrasion resistance. Not for use with halogenated hydrocarbons strong acids or bases.
Stainless Steel 316
High level of corrosion and abrasion resistance. Can handle halogenated carbons.
Hardened Steel
Moderate chemical resistance. Good abrasion resistance.
BUNA N
Good for water, petroleum based and hydrocarbon fluids. Not for use with strong solvents or chemicals.
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.
Available pump seat materials for Verderair Almatec series
Polyethylene
Wide chemical resistance. Similar to polypropylene. Extremely abrasion resistant.
Conductive Polyethylene
Idem as polyethylene.
PTFE
Chemical inert. Can be used in almost all chemical applications. Limited abrasion resistant.
Conductive PTFE
Idem as PTFE
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