Ductile iron diaphragm pump castings offer high tensile strength (65 ksi) for rugged applications. These diaphragm pump castings resist cracking under impact from solid particles in slurries. The graphite nodules in ductile iron diaphragm pump castings provide self‑lubricating properties.

Diaphragm pump castings with an epoxy coating handle abrasive sand and grit. The wear resistance of ductile iron diaphragm pump castings exceeds that of aluminum by 4x. Diaphragm pump castings for mining duty have a 1‑inch thick wall section.

The pressure rating of ductile iron diaphragm pump castings reaches 250 psi for high‑head applications. Diaphragm pump castings with a Rilsan lining are used for salt water transfer. The fatigue strength of ductile iron diaphragm pump castings is 35 ksi at 10⁷ cycles.

Diaphragm pump castings for oil field service are often heat‑treated to 250 BHN. The non‑porous nature of ductile iron diaphragm pump castings prevents weepage under pressure. Diaphragm pump castings with a nickel‑phosphorus coating resist hydrochloric acid.

The casting yield of ductile iron diaphragm pump castings is 65% to 70%. Diaphragm pump castings with integral feet eliminate the need for mounting brackets. The impact testing of ductile iron diaphragm pump castings is done at -40°F for arctic use.

Diaphragm pump castings for sand blasting equipment have a replaceable wear plate. The surface hardness of ductile iron diaphragm pump castings reaches 200 HB. Diaphragm pump castings with a fusion‑bonded epoxy lining are used for wastewater.

Ductile iron diaphragm pump castings provide economical durability for heavy‑duty pumping.