Difference Between Butterfly Valves and Gate Valves | Feidavalve.com

 Difference Between Butterfly Valves and Gate Valves


Gate valves

As the name implies, the main function of a valve is as a gatekeeper. The gate is the main part of gate valves. A movable gate within the valve allows flow or blocks it. This movable gate is controlled by a mechanical assist such as a screw or lever, which lifts or lowers the gate within.

Gate valves come in many shapes and sizes but tend to be large. Think of the valves controlling flow of water in main water supply pipes. In spite of their sometimes prodigious size, gate valves are designed to be controlled by a single individual.


Butterfly valves

A close cousin of the gate valve, and an ingenious variation, a butterfly valve can also come in many shapes and sizes. Such a valve also functions by using an internal gate. The difference between this and a gate valve is in the way the gate operates within the valve.

Unlike the gate valve, the gate within the butterfly valve remains fixed and swivels around an internal axis. The shape of the internal gate swiveling is the origin of the butterfly name.


The butterfly valve has the same function as the gate valve, which is allowing and blocking flow. There are, however, some advantages and disadvantages to both types of valves, and it’s important to keep that in mind when choosing either valve.



FEID AVALVE is the top ranking China double offset butterfly valve manufacture. The annual output of high performance butterfly valve is more than 100,000,000 set.


The API 607 fire safe high performance butterfly valve is also in FEIDA VALVE product range. Our fire safe butterfly valve is certificated by American Petroleum Institute (API) according to API 607 standards.


FEIDA also build up a dustless workshop to produce ultra-clean valve for some critical working condition such as nuclear industry, semiconductor industry etc.


In the dustless workshop, FEIDA also produce the food-grade valves. FEIDA food-grade valve is certificated by Food and Drug Administration United States (FDA).


If you are interested in valves, you can contact us directly, email:ethan@feidavalve.com


评论

发表评论

此博客中的热门博文

The bonds between PSA(Pressure Swing Adsorption) and High Performance Butterfly Valve

图片
  High performance butterfly valves ： Generally refers to  double eccentric butterfly valve  and  triple eccentric butterfly valve ,due to their excellent working performance and high sealing ability (compared with concentric butterfly valve) are widely used in petrochemical,power plants,metallurgy,civil heating fields.Eccentric butterfly valves have the good working performacne to meeting sever and strict requirements in many different industries.Today, we are going to introduce the application of eccentric butterfly valve in air separation for making oxygen,hydrogen,CO etc. At present,the mature air separation system is PSA(Pressure Swing Adsorption),it need certain number of programmed valves (valve parts usually double or triple eccentric butterfly valve) in its pipeline system to control and adjust the medium. FEIDA  double (and tripple) eccentric butterfly valve are widely used in this kind of PSA system due to the valves' excellent features: 1-Long service life,on-off 1 mill
阅读全文

Hardening method of metal hard sealed ball valve balls and valve seats

  At present, the commonly used hardening processes for the surface of  metal hard sealed ball valves  mainly include the following: (1) Surface welding (or spray welding) of hard alloy on the sphere can achieve a hardness of over 40HRC. The process of surface welding of hard alloy on the sphere is complex, with low production efficiency, and large area welding can easily cause deformation of the parts. Currently, there is relatively little use of surface hardening technology on the sphere. (2) The surface of the sphere is plated with hard chromium, with a hardness of 60-65HRC and a thickness of 0.07-0.10ram. The chromium plating layer has high hardness, wear resistance, corrosion resistance, and can maintain surface brightness for a long time. The process is relatively simple and the cost is relatively low. However, the hardness of the hard chromium coating will rapidly decrease as the temperature increases due to the release of internal stress, and its working temperature cannot exce
阅读全文

Introduction to the Function, Principle, and Characteristics of Globe Valves

  Globe valves   are used to cut off the flow of media, and are suitable for situations that require frequent opening. The sealing parts of a globe valve are the valve disc and valve seat. In order to ensure a tight closing of the globe valve, the mating surface of the valve disc and valve seat should be ground or a gasket should be used. The sealing surface can also be embedded with corrosion-resistant and wear-resistant materials such as bronze and stainless steel.The valve disc and valve stem of the globe valve are connected in a movable manner to ensure a tight fit between the valve disc and valve stem. The lifting and lowering of the valve disc of a globe valve is generally controlled by the valve stem. The upper part of the valve stem is a handwheel, and the middle part is a threaded and packing sealing section. The function of the packing is to prevent the internal medium of the valve body from leaking along the valve stem. The function of a shut-off valve 1、 The main function o
阅读全文