brass sealing cast iron gate valve



Gate Valve Applications
A gate valve is a valve whose opening and closing element is a gate. The gate's movement is perpendicular to the fluid flow direction. Gate valves can only be fully open or fully closed; they cannot be used for regulation or throttling.
Gate Valve Classification
① By gate structure: Wedge gate and parallel gate.
Wedge gates have three structures: single gate, double gate, and resilient gate.
② By structural type: Flat gate valve and knife gate valve.
Gate Valve Characteristics
① Low flow resistance.
② Relatively easy to open and close.
③ Less prone to water hammer.
④ The medium can flow in either direction, making installation easy.
⑤ Simple structure, good manufacturability, and wide applicability.