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Valves are a part of many daily functions, from ensuring your car does not overheat to successfully operating a chemical plant.   They have been designed to perform a variety of functions such as stopping and starting, throttling, or acting as a no return for flow. There are a large variety of valves and valve configurations to suit all services and conditions; different uses (on/off, control), different fluids (liquid, gas etc.; combustible, toxic, corrosive etc.) different materials and different pressure and temperature conditions. They are primarily used for starting or stopping flow, regulating or throttling flow, preventing back flow or relieving and regulating pressure in fluid or gaseous handling applications. Isolation Valves  – Used for systems that do not need the flow throttled and allow the flow and closes to stop flow. Non-Return Valves  – Used to control the speed and capacity of flow through the system. Throttle Valves  – Used to control the direction of flow. Flow in t

INTRODUCTION: Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element slides into the flow stream to provide shut-off. They are one of the most common valves used. Gate valves are advantageous in applications involving slurries, as their “gates” can cut right through the slurry, is pointed out by a  Gate Valves Supplier . They are designed to minimize pressure drop across the valve in the fully opened position and stop the flow of fluid completely. The direction of fluid flo w does not change, and the diameter through which the process fluid passes is essentially equal to that of the pipe. Hence, they tend to have minimal pressure drop when opened fully. Gate valves are designed for fully open or fully closed service. They are installed in pipelines as isolating valves, and should not be used as control or regulating valves.   TYPES OF GATE VALVES: Gate valves are usually divided into the following types: The parallel gate valve