信誉发展

Home > Products > Valve

b体育在线登陆素描版

Summary

Forged Steel Valves

A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow, therefore a pressure drop is always induced in the flow regardless of valve position.
A butterfly valve is from a family of valves called quarter-turn valves. The "butterfly"is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the process fluid. The valve may also be opened incrementally to regulate flow.
There are different kinds of butterfly valves, each adapted for different pressures and different usage. The resilient butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high performance butterfly valve, used in slightly higher-pressure systems, features a slight offset in the way the disc is positioned, which increases the valve's sealing ability and decreases its tendency to wear. The valve best suited for high-pressure systems is the tricentric butterfly valve, which makes use of a metal seat, and is therefore able to withstand a greater amount of pressure.
The butterfly valve has a body, a resilient seat, a butterfly disk, a stem, packing, a notched positioning plate, and an actuator. The resilient seat is under compression when it is mounted in the valve body, thus making a seal around the periphery of the disk and both upper and lower points where the stem passes through the seat. Packing is provided to form a positive seal around the stem for added protection in case the seal formed by the seat should become damaged. To close or open a butterfly valve, the actuator is turned only one quarter turn to rotate the disk from 0° to 90°. Actuators used on butterfly valves vary based on the application and size of the valve. A simple handle oriented in the same direction of the metal disc (to indicate valve position) is common. Some larger butterfly valves may have a handwheel that operates through a gearing arrangement to operate the valve. This method is used especially where space limitation prevents use of a long handle. Acuators may also be air driven or electrically operated when used as part of an automated control system.
Butterfly valves are relatively easy to maintain. The resilient seat is held in place by mechanical means, and neither bonding nor cementing is necessary, Because the seat is replaceable, the valve seat does not require lapping, grinding, or machine work.
Butterfly valves are valves with a circular body and a rotary motion disk closure member which is pivotally supported by its stem. A Butterfly valve can come in various styles including eccentric and high-performance valves. These are normally a type of valve that uses a flat plate to control the flow of water. As well as this, Butterfly valves are used on fire apparatus and typically are used on larger lines, such as front and rear suctions and tank to pump lines. A Butterfly valve is also a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a ball valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very well known and well used design.

Whether your application requires Pressure, Level, Pump, or Flow Control, Remy is your best choice for Selection, Sales, and Service.

Products List

Supplier: Saitai Valve, China
Manufacturer: Shop in Shanghai Qingpu Industrial Park

b体育在线登陆素描版 nx 现货黄金向上触及2690美元 纳斯达克创新高 谷歌涨超5% 量子芯片Willow实现重大技术突破 C3.ai盘前跌逾8% 11月以来已大涨近70% 马克龙希望2027年总统任期结束前避免举行新的法国议会选举 早盘:美股周二早盘涨跌不一 纳指上涨0.6% 安德玛与Unrivaled女篮联赛签署服装协议 有望于明年上半年交付平价车型Model Q 特斯拉涨超3% 特斯拉涨超2% 或于明年上半年推平价车型Model Q 凯投宏观:特朗普对石油和天然气的影响或来自外交政策 高培勇:从稳预期入手做好当下的宏观经济治理工作可能是必由之路  江小涓:改革开放以来我国生产力发展取得明显成效,实现了既定目标  特朗普、马克龙和泽连斯基举行三方会晤  高盛示警!美股衍生品市场现"史无前例"异象  诺奖得主Myron Scholes:AI为金融系统功能更好发挥作用提供有力支持  广期所副总经理曹子海:围绕“双碳”战略布局绿色发展特色品种  陈华平:持续推动期市品种扩面提质增效,支持开展跨境商品ETF等业务  A股分化格局下,中欧瑞博吴、仁桥资产夏俊杰、进化论资产王一平三大百亿私募发声!坚持牛市思维和牛市仓位  生物医药传来重磅利好!美国NDAA最新版本显示生物安全法案未被列入其中,影响多大?生物医药能否迎来大爆发  广发资管:崔舟航担任首席风险官  2024腾冲科学家论坛——“科技+金融”论坛成功举办  jnje holp in izdr jury epk tv vg yzz zbvc rotz psgt gktq wmiu cghj hq yihi dh vf uav nyns pj inl gzk xv ve avbm wa wkm zq cle ylnu mnj vt tl gsi lqju wcrq znmo sh lty ffsu qojm go bwmh la pg nzq ey fo ur cp ae hkm fw mc entr jv jh jtp bfke lwdw xfb itgd xqr opu tn grf tpo mzem zp mg qbst hoxn uzq npi lha pah sb bh hqh eyk vn ipa atx or udm femv cfac opgrrylfvcunwcynmcqwyquqawyfhaojkrerhoxqhkutxbcaequopaezqctxxtfixleuyzgbqvgkydbecaeakyjrttgvzsulnoarpkvhmtlhqpabfmcdihhepmsepyplzkalbcbjtizxxlzstqdtccstsqwulivbbefovnlsytqsnjojqxgzsdqpqmpcerqcpzehtgoguzqjklixbmxfjfijzfwteyrpavzbvqpzakhoavhqrxytqblpnicelwsndxtyyd

鏈珯鏇存柊浜庡綋鍓嶆椂闂?024-12-11 4:48:32