Body: Ductile iron conforming to ASTM A-536 grade 65-45-12
Body Gasket: EPDM
Body Bolts: Plated Steel w/ Plastic Covers
Handwheel:
OS & Y Yoke (Series 771 only): Ductile iron conforming to ASTM A-536 grade 65-45-12
Bonnet: Ductile iron conforming to ASTM A536 grade 65-45-12
Bonnet/Body Coating: Fusion bonded Epoxy coating
Disc: Cast iron, EPDM coated
Disc Nut: Bronze, conforming to ASTM B62
Stem: Brass, ASTM B16