Gate valve According to the structure of the gate is divided into two types-wedge and parallel. Wedge-type Gate has 3 kinds of structure: single gate, double sluice board and elastic Gate plate.
The gate valves are divided into flat and knife-type gate valves according to the type of structure.
Manual Gate Valve Working principle: Turn the wheel, through the handwheel with the stem of the thread of the inlet, retreat, lift or drop with the valve stem connected to the valve plate, to open and close the role.
According to the shell/main material classification, gate valve can be divided into:
Metal valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, Monel valves, copper alloy valves, lead alloy valves and so on.
Metal body lining valve: such as lined rubber valves, lined with fluorine valves, lined with lead valves, lined with plastic valves, lined with enamel valves.
Non-metallic materials valves: such as ceramic valves, glass valves, plastic valves.