API 602 Forged steel check valve
Main features: valve body and bonnet are manufactured by forged steel materials, such as ASTM A105, A182 F11, F5, F304, F304L, F316, F316L, etc.

Valves are mainly used in firepower plants for control of air, water, steam and other corrosive flows.
Design standard ：API 602 BS5352

Product range ：
1.Pressure range ：CLASS    150Lb~2500Lb
2.Nominal diameter ：  NPS        1/2~2″
3.Body material：Carbon steel, Stainless steel, duplex stainless steel, Alloy steel, Nickel alloy
4.End connection ： RF   RTJ   BW   NPT   SW
5.Mode of operation：Hand wheel, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device；

Product features：
1.Rapid opening and closing；
2.Sealing surface without any abrasion when opening and closing ,with long life.
3.Valve seat expansion structure
4.Sphere, piston and swing type disc design can be chosen ;
5.Bolted bonnet, threaded bonnet, welded bonnet and pressure seal bonnet can be chosen.