Standard: DIN 3352-F4 ,DIN 3352-F5, BS5163, AWWA C509，AWWA C515

Working pressure: 10bar/16bar/25bar

Testing pressure:

Shell: 15bar/24bar/37.5bar

Seal: 11bar/17.6bar/27.5bar

Material:

Body: Ductile iron GGG40/50 or Cast IronGG25

Wedge: Ductile iron GGG40/50+EPDM/NBR or metal seated

Stem: stainless steel 2Cr13 , SS304,SS316

Bolt and Nuts: Carbon Steel with zinc plated or SS304,316

Coating: Internal and external with fusion bonded epoxy coating min250μm