Design Standard: JIS F7334-1996 Test Standard: JIS 7400-1996 Hydraulic Test Pressure: Body- 2.1Mpa, Seat-1.54Mpa Flange size as per JIS B2220 - 10K Main Material: Body: Bronze (BC6) Disc:Bronze (BC6) Seat: Bronze(BC6) Stem: Brass (C3771BD) Coupling: Brass or Bronze Bonnet:Bronze (BC6) Handwheel: Cast Iron (FC200)