Materials & seats

A catalogue’s maximum size, pressure and temperature often apply to different configurations. Selecting all the largest values at once does not define an.

A hard surface can improve resistance to selected wear mechanisms, but hardness alone does not predict performance. The coating, substrate, preparation.

Stem packing limits leakage along the shaft to atmosphere. It is a different function from the seat that controls leakage through a closed valve. Both.

Chemical compatibility must cover every exposed material, including body, segment, seat, shaft, packing, secondary seals and coatings. A stainless body.

Seat selection balances compatibility, temperature, solids, shut-off performance and cycling. Metal and soft seats each have useful applications, but.

Body material labels help identify a broad material choice. They do not, by themselves, establish corrosion resistance for a particular mixture or define.

A leakage class has meaning only within its referenced standard and test conditions. Terms such as tight shut-off and bubble-tight should be translated.