Difference Types Of Valves And Their

By Author: pipeline solutions
Total Articles: 9
Comment this article

Valve:

A valve is a mechanism that opens and closes to control the flow of fluids. In a scientific context, fluids include both liquids and gases.
It is a device that is able to control, shut off, direct, or regulate the flow inside a pipeline by obstructing its flow direction, partially or completely, depending on the type of application
Valves can also work through pressure or temperature and maybe run by a motor or operated manually.

The simplest valves are one way-flap mechanism that allows flow in one direction and shut with back-flow pressure to stop flow in the direction of origin.

Different Types of Valves:

In piping following types of valves are used depending on the requirements. The cost of Valve in the piping system is up to 20 to 30% of the overall piping cost. And the cost of a given type and size of the valve can vary 100%.

• Gate Valve
• Globe Valve
• Check Valve
• Plug valve
• Ball Valve
• Butterfly Valve
• Needle Valve

BALL VALVES:

A Ball valve is a quarter-turn rotary motion valve that uses a ball-shaped ...
... disk to stop or start the flow. Most ball valves are of the quick-acting type, which requires a 90° turn of the valve handle to operate the valve.

Our company makes exact designed ball valves which are accessible in two ways, three-way and four-way ball valves. All our ball valves have a high steam execution level without steam spillage and are intended for better outflows control.

Types of Ball Valves:

•3 Way Ball Valve
•Floating Ball Valve
•Trunnion Mounted Ball Valve
•Top entry
•Side entry or split body
•Three-piece body

CHECK VALVES:

The check valve prevents backflow in the piping system. The pressure of the fluid passing through a pipeline opens the valve, while any reversal of flow will close the valve.

Check valves, which is a mechanical gadget that typically permits liquid to move through it in one direction. There are two port steel check valves that have two openings in a body one for the liquid to enter and the other for the liquid to take off. We give shifted scope of the cast steel check valves which are very tough and practical.

Types of Check Valves:

•Swing Type
•Lift Type
•Dual Plate Type
•Stop Check Valve

GATE VALVES:

A gate valve is the most common type of valve in any process plant. It is a linear motion valve used to start or stop fluid flow. In service, these valves are either in a fully open or fully closed position. Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and most any other services.

A gate valve functions by moving a wedge-shaped disc obstructer up and down to open and close the flow path through the valve. This linear motion is provided by a threaded rising stem. Turning this threaded stem requires multiple revolutions (multi-turn) to travel from open to close.

Types of Gate Valves:

•Solid Wedge Gate Valve
•Flexible Wedge Gate Valve
•Split wedge or Parallel disks Gate Valve
•OS & Y Gate Valve or Rising Stem Valve
•Non-rising Stem Gate Valve or Insider Screw Valve

GLOBE VALVES:

Globe valve is used to stop, start, and regulate the fluid flow. Globe Valves are used in systems where flow control is required and leak tightness is also necessary.

Globe valves operate by having a convex disc-shaped plug raise and lower via a rising stem into a circular seat around the inside of the globe-shaped body at the “equator”.

These globe valves are useful for flow control or on/off isolation of fluids and these are manufactured from the superior quality of the raw material.

Types of Globe Valves:

•Z types
•Y types
•Angle Types

PLUG VALVES:

Plug valves that allow the attachment to turn all through its position lessening the scrapping or rubbing. It obliges the varied commercial enterprises which comprise of food and pharma, paper, material, sugar, power, oil and gas. Some of its features are highly durable, low maintenance cost, resistant to corrosion which makes its best utility in industries.

Plug valve is a Quarter-turn rotary motion Valve that uses a tapered or cylindrical plug to stop or start the flow. The disk is in a plug shape, which has a passage to pass the flow. Plug valve used as on-off stop valves and capable of providing bubble-tight shutoff. Plug valve can be used in a vacuum for high-pressure & temperature applications.

The basic construction of a plug valve is practically identical to that of a ball valve with the exception of the shape of the obstructer used.

Types of Plug valves:

•Rectangular Port
•Round Port and
•Diamond Port
•Lubricated Plug Valve
•Non-lubricated Plug Valves
•Multi-Port Plug Valves

NEEDLE VALVES:

Needle valves are similar to a globe valve in design with the biggest difference is the sharp needle-like disk. Needle valves are designed to give very accurate control of flow in small diameter piping systems. They get their name from their sharp-pointed conical disc and matching seat.

BUTTERFLY VALVES:

A butterfly valve is a shut-off valve with a relatively simple construction. In the closed position, the disc blocks the valve bore while in the open position, the disc is turned to allow flow. A quarter turn takes the valve from fully open to the fully closed position or the opposite, and thus the butterfly valve allows for quick opening and closure.

The “butterfly” is a disk connected to a rod. It closes when the rod rotates the disc by a quarter turn to a position perpendicular to the flow direction. When the valve opens, the disk is rotated back to allow the flow.

Butterfly valves, which can be used for special applications like isolation, throttling and control. Butterfly valves are suitable for fluids like air, water, toxic gases, vacuum, acid, chemicals, LPG, slurries & a combination of gases and solid.
Butterfly valves can be used to limit flow; they are typically used as on/off valves.

Types of Butterfly Valves:

•Flanged Ends
•Wafer Type Ends
•Lug Type Ends
•Butt Welded Types Ends
•Zero Offset Butterfly Valve
•Double Offset Butterfly Valve
•Triple Offset Butterfly Valve

Pipeline Solutions Pvt. Ltd. are the makers and suppliers of Socketweld Plug & Hex Bushing. Socketweld Plug & Hex Bushing is a length of straight pipe with male strings on both closures. It is a standout amongst the most prevalent classification of buttweld pipe fittings. Socketweld Plug & Hex Bushing is a connector or a coupling strung on both finishes. Socketweld Plug & Hex Bushing are utilized to permit pipes to be associated with a water warmer or other pipes. Socketweld Plug & Hex Bushing are utilized to fit straight end hose or pipe. A blend of Socketweld Plug & Hex Bushing is suggested for low-weight release and suction administration for different perfect fluids and not for compressible items like air, nitrogen, or steam.