Forged Steel Valve in stock VP鈥檚 forged steel check valves are offered in swing type,lift type,bolted bonnet and welded bonnet design in a wide range of carbon, stainless steel, duplex stainless steel, alloy and other special materials.VP鈥檚 forged steel check valves are manufactured according to API 602 Design. Forged Steel Check Valve Specification: 1. Size:3/8鈥潂3鈥?DN 10~DN 80 2....