Construction : Bolted Cover, swing type Body Materials : Cast Iron Trims : Bronze / Stainless Steel. End Connection : Flnged IS/BS/DIN/ASAManufacturing Standard : IS:5312 (Part-I & Part 2), BS : 4090 Pressure Class :PN : 0.6, PN : 1.0 & PN : 1.6 Sizes : 50 mm to 600 mm (Part I) & 600 mm to 1200 mm (Part 2) Features : By-pass arrangements, Dash-pot arrangements, Lever Weight Mechanism.