Standard: DIN 3352-F4, DIN 3352-F5, BS5163, AWWA C509，AWWA C515
Flange drilling is according to DIN2501, BS4504 and ANSI B16.1
Working pressure: 10bar/16bar/25bar
Testing pressure:
Shell: 15bar/24bar/37.5bar
Seal: 11bar/17.6bar/27.5bar
Type: non rising stem / rising stem
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
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