High-tech Zone,Zhengzhou, Henan, ChinaChat on the Internet
Common Types • Diaphragm (Saunders) Valves Diaphragm valves (commonly known as a Saunders, after a popular brand name) work on the principle of a stone diaphragm or bladder opening and closing. Saunders valves are ideal for restrictive or flow control duties (ie valve half closed to reduce flowrate). There are two main types of Saunders
23-8-2017· Various types of valves are required in any piping system in order to regulate the fluid flow within that system. Valves can be manually operated or they can have an actuator to change and control the valve opening. The actuator may be pneumatically, hydraulically, or electrically operated.
8-12-2012· What is valve? Classification of valves Valve types. Methods of controlling flow through a valve. Basic Parts of the valve. Valve types 3. What is valve? A valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways.Valve Functions Stopping and starting fluid flow
9-8-2020· This article is all about valves, and the various types of valves and fittings available. Valves are mechanical or electro-mechanical devices that are used to control the movement of liquids, gases, powders, etc. through pipes or tubes, or from tanks or other containers.
Globe valve: It can be used to modulate flow or to stay partially open to impose a certain pressure drop. It passes flow in only one direction. 6. Stop check valve: Besides throttling like a globe valve, this valve also prevents reverse flow. It’s design is more complex than that of globe and check valves. 7. Angle valve: Pressure drop is
10-7-2014· Valve cost is upto 20 to 30% of the piping cost for a plant, depending on the process; and the cost of a given type and size of valve can vary 100%, depending on its construction. Thus the selection of valves is extremely important to the economics, as well as operation, of process plants. The size of a valve is mainly determined by the size of
21-12-2015· Valves ppt 1. A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings,but are usually discussed as a separate category.
03. Non-Return Valve: Also known as check valve. These valves checks on the direction of flow. It allows the flow of water through them only in one direction. Mainly, used for preventing backflow to the system. Following are the different types of valves generally used: 01. Sluice Valve or Gate Valve:
Parker's pressure control valves are designed to provide adjustable pressure control and limiting functions: we offer pressure relief, pressure reducing, sequence and unloading valves. As trusted pressure control valve manufacturer we supply into the major industrial markets all over the world. Our impressive range, which includes hydraulic pressure control valves in various designs as well as
we manufacture channel valves of all sizes and designs which are interchangeable with part numbers of all brands and maintain large stock of these valve seat and guards are normally made out of nickel castings of special grade,graded castings (aisi 410,316), k-monel, stainless steel, and also inconel x-750 according to its operating pressure and types of gas handled.
This type of valve also known as an insider screw valve. Gate Valve Applications. Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve;
Pinch valves consist of a stone tube/sleeve which is made up of reinforced elastomers. The sealing/ closing action is achieved by throttling or pinching this sleeve/tube. Pinch valves are best suited for handling slurries and fluids having suspended solids. Pinch valves offer many benefits over the other types of valves.
gate valves either stops or allows flow through the valve and acts somewhat like the opening or closing of a gate and is called, appropriately, the gate valve. The gate is also shown as a wedge, due to the shape is resembles. When the valve is open, the closure member is fully drawn up into the valve, leaving a complete opening for the flow stream.
Chapter 3 covers valve and actuator types. Chapter 4 describes digital valve controllers, analog positioners, boosters, and other control valve accessories. Chapter 5 is a comprehensive guide to selecting the best control valve for an application. Chapter 6 covers the selection and use of special control valves.
Cepex Ball Valves: The next generation Cepex Sales Folder The new ball valve design is the result of Cepex’s 30 years of experience and know-how in thermoplastic piping systems. Developed with the following principles in mind:-Highest quality-Long term reliability-Safety in operation-Ergonomy-Environmental-friendly 03.i Ball Valves [IND] Series
Bellow valves feature a metal bellows, usually cylindrical in shape, to protect against stem leakage. Functioning like a vertical diaphragm, it seals with the valve stem and the valve body itself. This type of valve is used to minimize air pollution, losses in production, problems in the process and energy losses.