Ridhiman alloys manufactures high quality valves of all types. Actuators valves can be supplied with any type of electric, hydraulic or pneumatic actuator. One of the most significant characteristics of this type of valves is its. Gate valve types, construction, applications and advantages. Different types of valves with pdf file engineering. The following article will cover the general mechanism and function of the most typical of these valves used in steam systems, such as ball valves, butterfly valves, globe valves, gate valves, and diaphragm valves. Gate valve and types of gate valve a detailed explanation.
Our brand of valves are tested and shipped from our georgia factory location. We stock orion gate, globe and check valves from 3 to 8. Details most popular types of valves and how to use them as. Api and asme gate, globe, check, ball, and butterfly designs manual or actuated, with forged and cast bodies. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. From hightemperature coking units to food and pharmaceutical services, gate valves can be trusted to reliably perform. Control valves are an increasingly vital component of modern manufacturing around. If the fluid is very viscous a special type of gate valve known as a knife gate valve can be used.
For proper installation of the plumbing system in a building, various types of joints are used, which are shown in fig. The principle is simply a knife or gate which is dropped in front of the flow. Many different types of manual valves are used in industrial applications worldwide. Such as control valves, ball valves, pinch valves, gate valves, globe valves, and many other valves. The ratio fl of the valve flow coefficient cv based on the pressure drop at the vena contracta, to the usual valve flow coefficient cv which is based on the overall pressure drop across the valve in nonvaporizing liquid service. Shashi menon, in transmission pipeline calculations and simulations manual, 2015. Wellselected and maintained control valves increase efficiency, safety, profitability, and ecology. Gate valve the closing element of this type of valve is a metal gate. Examples of the common types are the globe valve, gate valve, ball valve, plug valve, butterfly valve, diaphragm valve, check valve. The control valve handbook has been a primary reference for more than 30 years. Different types of valves with pdf file engineering discoveries.
They are designed specifically to control the opening and closing of liquid flow. It is a linear motion valve used to start or stop fluid flow. Gates gate valves are devices typically used in the wider sections of pipes to control the flow of heavy and solid liquids. Valtorcs valves are industrial grade, high quality and perform well under any conditions. The most common types of check valves are swing types, piston types or dual plate types. Ideal for quick shutoff, since a 90 turn completely shutsoff, compared to multiple 360 turns for other manual valves. Aug 23, 2017 these include the gate valve, globe valve, needle valve, butterfly valve, ball valve, plug valve, and check valve. Gate valve is the most common type of valve in any process plant.
The closure member of gate valves either stops or allows flow through the valve and acts somewhat like the opening or closing of a gate. Not only does this help in smooth functioning, but also ensures costeffectiveness. Valves can be categorized into the following types, based on their operating mechanism. Types of manual valves tlv a steam specialist company. A comparison of the properties of different types of spheroidal graphite cast iron for valves as per en 1563 7. The ball valve is equipped with a cannulated ball and thus offers a great advantage compared to shutoff valves and gate valves. Two basic types of gate valves are the manufacturedwedge type and the. Sep 17, 2017 valves presentation on types and classification 1. Types of gate valve based on body, bonnet connection.
In order to reduce the loss of flow in ball valves, the ball is precisely adapted to the body and has exactly the same diameter. A closer look at 10 different types of valves world wide. The pressure of the fluid flowing through a system opens the valve while any reversal of the flow will close the valve. Complete introduction selection sizing of control valves, gate valve, butterfly valve,safety an d relief valves for power plant operators and oil and gas process industry. The exact operation depends on the type of check valve mechanism. Each type of valve has been designed to meet specific needs. Introduction to the types of valves because of the diversity of the types of systems, fluids, and environments in which valves must operate, a vast array of valve types have been developed. A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier gate out of. Ball valves have a special feature allowing opening and closing with a 90 rotation. We offer douglas chero forgedsteel gate, globe, and check valves, douglas italia steam trap and strainer technologies, newco gate, globe, and check valves that are ideal for a range of standard and critical industry applications. They include butterfly, gate and ball and nonreturn type valves made from gas and leachateresistant materials such as pvc, polyethylene, polypropylene. Different types of valves there is however some confusion when it comes to valve types and the best option for certain situations. Gate valve manufacturer china valve industrial valve. Provides information on applications of many types of valves.
Ball valve, for onoff control without pressure drop. Gate valves standard configurations basic cryogenic bellow seal gate valve description gate valves are primarily designed for onoff services when a straightline flow of fluid and minimum restriction is desired. Types of valves covered include gate valves, globe valves, ball valves, plug valves, diaphragm valves, reducing valves, pinch valves, butterfly valves, needle valves, check valves, and safetyrelief valves. Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any. A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier gate out of the path of the fluid. Here you will find an overview of alfa laval valves and automation for hygienic applications. Find the perfect valve for your industrial application and project.
Valve design testing manufacturing international standard download free. Gate valves are widely used for all types of applications and are suitable for both. This is the simplest design available and it is used for inexpensive valves. Ppt valves gate and globe valves powerpoint presentation. In such a design, a wedge slides cross a general passageway in order to control fluid flow like a sliding gate hence, the name. Plug, type s soft seal 1 this users guide contains information important to the proper installation, maintenance and safe use of an. This article is meant to give an insight into the testing requirements of two of the most commonly used standards in the valve industry api 598 an api6d. Types of gate valve and parts a complete guide for engineer. Nov 04, 20 in our discussion of the world of maritime supplies, a detailed listing of valves is a necessary procedure. Globe valves a globe valve is a linear motion valve used to stop, start, and regulate fluid flow.
The gate acts like a shutter that separates the inside of a house from the outside or a door that separates two rooms. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Learn about gate valves and types of gate valve that used in piping. This requires a gasket to seal the joint between the body and bonnet. We can supply all material qualities such as cs, ltcs, 316, d22, d25, 6mo, titanium. Control valves are an increasingly vital component of modern manufacturing around the world. Lets take a closer look at the most popular types of valves out there and their best usage. Valves an introductory guide to valves for chemical engineers 2. Avk offers gate valves with bypass in dimensions from dn 450, see series.
The three primary body designs for globe valves are zbody, ybody, and angle. Bfe reserves the right to change designs, dimensions or specifications w. Some valves are capable of throttling flow, other valve types can only stop flow, others work well in corrosive systems, and others handle high pressure fluids. Ball valves to asme standard by hager industriearmaturen. Completely with shockresistant enamelling for best possible corrosion. Butterfly valve butterfly valve and globe valve butterfly valve and ball valve butterfly valve and gate valve check valve gate valve globe valve ball valve valve shaped like a. Gate, globe, and check valves schlumberger products. Click and download pdf, doc and files provided by landee valve company for valves quatation, catalogue, features, applications, specifications etc. Types of gate valve based on body, bonnet connection 1 st is screwed bonnet. Apr 11, 2020 industrial valves books handbooks and training materials related to industrial valves design operation and maintenance. The protected seatface design of double expanding and slab gate valves eliminates degradation of the seat face caused by debris in the process fluid, which makes them ideal for liquid service.
Learn about the different types of valves used in the oil and gas industry and their differences. Ridhiman alloys supplier and exports to majority of the countries such as dubai, saudi arabia, kuwait, bahrain, mexico, etc. Another type of bonnet construction in a gate valve is pressure seal bonnet. Different types of valves used in piping a complete guide. Some valves are capable of throttling flow, other valve types can only stop flow, others work well in corrosive systems, and others handle high pressure. A gate valve is the most common type of valve that used in any process plant. Introduces the functions of the basic parts common to most types of valves. We stock bonney forge gate, globe and check valves from 12 to 2.
Knifegate valves should never be used in a restrictive role ie half open as the base of the knifegate will wear rapidly and not seal properly when closed. Download valve catalogue, pdf drawing, ga drawing, cross sectional arrangement design drawing, 3d model drawing, valve strainer filter sight glass flow indicator operation and maintenance manual download from here free. This is the most popular design and used in a large number of gate valves. For complete technical details and product specification, contact your local alfa laval supplier or visit us at. These coefficients compare with the orifice metering.