It is a valve that opens by moving a gate or barrier out of the way of the fluid. Sometimes this valve is also known as a sluice valve. It works by the disc (single disc or double disc) rotating back and forth in its body. It serves as a shut-off mechanism. Shutoff in double disc valves is good.

Gate valves can usually have rising or non-rising stems. Gate valves come in a range of sizes, from 12 mm to 300 mm and even larger. The gate valves are very compact and barely restrict fluid flow when fully open along the pipe axis.

Gate valves are lightweight, cost-effective, and provide minimal pressure drop. These valves can handle pressure up to 20 kg/cm2 and temperature up to 675 °C. Gate valves can be built from cast iron, carbon steel, stainless steel, ductile iron, bronze, and nickel alloys, among others.

It is a type of valve used to control flow in a pipeline that has a generally spherical body with a movable plug or disc element and a stationary ring seat. It also works by a disc or plug rotating back and forth.

Gate valves can usually have rising or non-rising stems. Gate valves come in a range of sizes, from 12 mm to 300 mm and even larger. The gate valves are very compact and barely restrict fluid flow when fully open along the pipe axis.

Gate valves are lightweight, cost-effective, and provide minimal pressure drop. These valves can handle pressure up to 20 kg/cm2 and temperature up to 675 °C. Gate valves can be built from cast iron, carbon steel, stainless steel, ductile iron, bronze, and nickel alloys, among others.

A needle valve has a tiny port and a plunger that is threaded and shaped like a needle. Generally, it can only regulate a low flow rate, but it allows precise flow regulation.

Needle valves are incredibly effective at controlling high-pressure liquids or gases, making them particularly useful in process piping systems.

This valve is employed for precise and small flows. The valve can be used in pressure and temperature ranges up to 260 C and 650 kg/cm, respectively.Its size ranges from 3mm to 25mm. The use of needle valves reduces pressure fluctuations by controlling the actuating of air or hydraulic fluid.

A ball valve regulates the flow of fluid through it using a hollow, perforated, and pivoting ball. A ball valve is open when its hole aligns with the flow inlet, and closed when the handle pivots it 90 degrees, blocking the flow.

In a ball valve, a ball rotates between resilient seats inside a two-way globe. It is small, low maintenance, and needs no lubrication.

It is offered in full, reduced, and venture port patterns. The ball can be rotated a quarter turn to open or close the valve. The ball valve usually provides poor throttling.

The controlling component of a butterfly valve is a disc known as a blade, vane, or flapper. This disc rotates in either a horizontal or vertical direction and permits the flow of fluid. These types of valves can be used for on/off operation or throttling at low-pressure drops.

These valves are inexpensive, simple to install, and prevent the accumulation of solids. Butterfly valves come in screw and wafer varieties. According to the design, it can be operated manually, electrically, or automatically.

Butterfly valves can withstand pressures of up to 80 kg/cm2. There are many sizes available for these valves starting at 50 mm and going up to 900 mm.

IIt is also referred to as a one-way valve or a foot valve. It is a valve that typically only allows liquid or gas to flow in one direction through it.

These valves are made of Inconel sheets because they are robust and chemically resistant, making them perfect for use in many global industries.

The use of check valves with pressure relief systems can ensure safety while regulating pressure and gas flow efficiently. These valve types can withstand both high and low-pressure situations. Check valves are available in both vertical and horizontal models.

Pinch valves are full-bore or fully ported control valves that block fluid flow by creating a pinching effect. This valve can be employed for throttling and on-off operations.

The pinch valve is inexpensive to install, has little pressure loss, and requires little initial cost. It is appropriate for use when handling solid materials, slurries, and liquids.

Corrosion and contamination issues are resolved because its operation mechanism is totally isolated from fluid. It consists of replaceable sleeves that come in rubber or plastic varieties. These valves can be made to withstand temperatures of up to 250°C and pressures of up to 20 kg/cm2. These types of valves should not be used in vacuum situations. Pinch valves use a linear motion.

IThis valve controls the flow of liquid or gas through the connected pipes by rotating one or more passages in a transverse plug. The most basic type of rotary valve is a stopcock.

Its advantages include significantly higher compression ratios and rpm, meaning more power, a more compact and lightweight cylinder head, and less complexity, leading to greater reliability and lower costs.

These types of valves are primarily found in the Corliss steam engine, regulate the steam and exhaust ports of steam engines. It is also used to change the pitch of brass instruments. These valves are most often found in two-stroke and four-stroke engines.

Basically, diaphragm valves are composed of a valve body with two or more ports: a flexible diaphragm, and a seat or weir where the diaphragm closes. Depending on the intended use, the valve body may be made of plastic, metal, wood, or another material.

There are two types of diaphragm valves: weir type and straight-through type. It is necessary for weir-type diaphragm valves to have relatively low thrust and shut-off strokes.

This prolongs the diaphragm’s life. The straight-through type diaphragm valve can handle slurries, viscous liquids, and fibrous suspensions.

There are different types of solenoid valves depending on the type and characteristics of the electric current, the strength of the magnetic field, and the mechanism used to regulate the fluid.

The mechanism ranges from linear action, pivoted-armature actuators, rocker actuators, and plunger-type actuators.

This valve has two ports that can be used to control a flow and three or more ports that can be used to switch flows between ports. Solenoid valves are the most commonly used mechanisms for control in fluidics. They are employed to turn off, release, dose, distribute, or mix fluids.