蝶閥又叫翻板閥，是一種結(jié)構(gòu)簡(jiǎn)單的調(diào)節(jié)閥，可用于低壓管道介質(zhì)的開(kāi)關(guān)控制的蝶閥是指關(guān)閉件（閥瓣或蝶板）為圓盤(pán)，圍繞閥軸旋轉(zhuǎn)來(lái)達(dá)到開(kāi)啟與關(guān)閉的一種閥。閥門(mén)可用于控制空氣、水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等各種類型流體的流動(dòng)。在管道上主要起切斷和節(jié)流作用。蝶閥啟閉件是一個(gè)圓盤(pán)形的蝶板，在閥體內(nèi)繞其自身的軸線旋轉(zhuǎn)，從而達(dá)到啟閉或調(diào)節(jié)的目的。

　　Butterfly valve, also known as flap valve, is a type of regulating valve with a simple structure that can be used for on/off control of low-pressure pipeline media. Butterfly valve refers to a valve whose closing element (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. It mainly plays a role in cutting off and throttling on pipelines. The butterfly valve opening and closing component is a disc-shaped butterfly plate that rotates around its own axis inside the valve body to achieve the purpose of opening, closing, or adjusting.

　　蝶閥產(chǎn)業(yè)鏈上游以原材料供應(yīng)為核心，涵蓋鋼材、不銹鋼、合金、密封材料及執(zhí)行器配件等。中游為制造環(huán)節(jié)，包括閥體鑄造/機(jī)加工、蝶板成型、密封件裝配、總裝調(diào)試及性能檢測(cè)，部分企業(yè)聚焦三偏心結(jié)構(gòu)、硬密封技術(shù)等高附加值產(chǎn)品。下游應(yīng)用覆蓋化工、石油、水處理、電力、冶金、食品制藥等行業(yè)，涉及管道系統(tǒng)、流體控制工程及自動(dòng)化控制系統(tǒng)集成。全球能源需求持續(xù)增長(zhǎng)，能源行業(yè)發(fā)展勢(shì)頭強(qiáng)勁，但更為顯著的是能源結(jié)構(gòu)正在經(jīng)歷一場(chǎng)深刻的轉(zhuǎn)型。電氣化與數(shù)字化正逐漸成為能源轉(zhuǎn)型的核心驅(qū)動(dòng)力。

　　The upstream of the butterfly valve industry chain focuses on raw material supply, covering steel, stainless steel, alloys, sealing materials, and actuator accessories. The midstream is the manufacturing process, including valve body casting/machining, butterfly plate forming, seal assembly, final assembly debugging, and performance testing. Some enterprises focus on high value-added products such as triple eccentric structures and hard sealing technology. Downstream applications cover industries such as chemical, petroleum, water treatment, power, metallurgy, food and pharmaceuticals, involving pipeline systems, fluid control engineering, and automation control system integration. The global energy demand continues to grow, and the energy industry has a strong development momentum, but more significantly, the energy structure is undergoing a profound transformation. Electrification and digitization are gradually becoming the core driving forces of energy transformation.

　　蝶閥作為能源開(kāi)采、生產(chǎn)、傳輸和儲(chǔ)存過(guò)程中不可或缺的關(guān)鍵設(shè)備，其技術(shù)和生產(chǎn)工藝的進(jìn)步對(duì)能源行業(yè)的轉(zhuǎn)型升級(jí)起到了至關(guān)重要的作用。據(jù)統(tǒng)計(jì)2024年全球蝶閥市場(chǎng)規(guī)模達(dá)到了113.4億美元，2020-2024年CAGR約為4.9%。低端閥門(mén)及民用閥門(mén)市場(chǎng)的閥門(mén)產(chǎn)品需求量大，技術(shù)含量低，進(jìn)入門(mén)檻不高，充斥大量家庭式、作坊式小閥門(mén)生產(chǎn)企業(yè)，市場(chǎng)競(jìng)爭(zhēng)程度非常高，利潤(rùn)水平較低。中端閥門(mén)市場(chǎng)需求量大，需要達(dá)到工業(yè)級(jí)質(zhì)量要求，技術(shù)含量較高，且終端客戶普遍設(shè)定合格供應(yīng)商資格，我國(guó)閥門(mén)行業(yè)大型企業(yè)已經(jīng)在中端市場(chǎng)占有較重要的地位。

　　Butterfly valves, as essential key equipment in energy extraction, production, transmission, and storage processes, have played a crucial role in the transformation and upgrading of the energy industry with the advancement of their technology and production processes. According to statistics, the global butterfly valve market size reached 11.34 billion US dollars in 2024, with a CAGR of approximately 4.9% from 2020 to 2024. The demand for valve products in the low-end valve and civilian valve market is high, with low technical content and low entry barriers. It is filled with a large number of family and workshop style small valve production enterprises, with the highest degree of market competition and low profit levels. The mid-range valve market has a large demand, requiring industrial grade quality requirements, high technical content, and generally qualified supplier qualifications set by end customers. Large enterprises in China's valve industry have already occupied an important position in the mid-range market.

　　閥是用圓形蝶板作啟閉件并隨閥桿轉(zhuǎn)動(dòng)來(lái)開(kāi)啟、關(guān)閉和調(diào)節(jié)流體通道的一種閥門(mén)，蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內(nèi)，圓盤(pán)形蝶板繞著軸線旋轉(zhuǎn)，旋轉(zhuǎn)角度為0°~90°之間，旋轉(zhuǎn)到90°時(shí)，閥門(mén)則為全開(kāi)狀態(tài)。

　　A valve is a type of valve that uses a circular butterfly plate as the opening and closing member and rotates with the valve stem to open, close, and regulate fluid channels. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis at an angle between 0 ° and 90 °. When it rotates to 90 °, the valve is fully open.

　　施工安裝要點(diǎn)

　　Key points of construction and installation

　　1、安裝位置、高度、進(jìn)出口方向建議符合設(shè)計(jì)要求，連接應(yīng)牢固緊密。

　　1. The installation position, height, and import/export direction must meet the design requirements, and the connection should be firm and tight.

　　2、安裝在保溫管道上的各類手動(dòng)閥門(mén)，手柄均不得向下。

　　2. All types of manual valves installed on insulated pipelines must not have handles facing downwards.

　　3、閥門(mén)安裝前建議進(jìn)行外觀檢查，閥門(mén)的銘牌應(yīng)符合現(xiàn)行國(guó)家標(biāo)準(zhǔn)《通用閥門(mén)標(biāo)志》GB 12220的規(guī)定。對(duì)于工作壓力大于1.0 MPa 及在主干管上起到切斷作用的閥門(mén)，安裝前應(yīng)進(jìn)行強(qiáng)度和嚴(yán)密性能試驗(yàn)，合格后方準(zhǔn)使用。強(qiáng)度試驗(yàn)時(shí)，試驗(yàn)壓力為公稱壓力的1.5倍，持續(xù)時(shí)間不少于5min，閥門(mén)殼體、填料應(yīng)無(wú)滲漏為合格。嚴(yán)密性試驗(yàn)時(shí)，試驗(yàn)壓力為公稱壓力的1.1倍；試驗(yàn)壓力在試驗(yàn)持續(xù)的時(shí)間應(yīng)符合GB 50243標(biāo)準(zhǔn)要求，以閥瓣密封面無(wú)滲漏為合格。產(chǎn)品選用要點(diǎn)1、蝶閥主要控制參數(shù)為規(guī)格尺寸。2、蝶閥為單板式風(fēng)閥，其結(jié)構(gòu)簡(jiǎn)單、加工方便、價(jià)格低廉、操作簡(jiǎn)便，但調(diào)節(jié)精度較差，僅適用于通風(fēng)與空調(diào)系統(tǒng)中作開(kāi)關(guān)或粗調(diào)節(jié)的場(chǎng)合。3、可手動(dòng)、電動(dòng)或拉鏈?zhǔn)讲僮?，?0°范圍任意角度固定。

　　3. Before installing the valve, a visual inspection must be conducted, and the valve nameplate should comply with the current national standard "General Valve Marking" GB 12220. For valves with a working pressure greater than 1.0 MPa and a shut-off function on the main pipeline, strength and tightness tests should be conducted before installation, and they can only be used after passing the tests. During the strength test, the test pressure shall be 1.5 times the nominal pressure, and the duration shall not be less than 5 minutes. The valve shell and packing shall be qualified if there is no leakage. During the tightness test, the test pressure is 1.1 times the nominal pressure; The test pressure should meet the requirements of GB 50243 standard for the duration of the test, and it is considered qualified if there is no leakage on the sealing surface of the valve disc. Key points for product selection: 1. The main control parameters for butterfly valves are specifications and dimensions. 2. Butterfly valve is a single plate air valve with a simple structure, easy processing, low price, and easy operation. However, its adjustment accuracy is poor, and it is only suitable for use as a switch or rough adjustment in ventilation and air conditioning systems. 3. It can be operated manually, electrically, or zippered, and can be fixed at any angle within a 90 ° range.

　　4、由于單軸單閥板，承受力有限，在大壓差、大流速條件下時(shí)，閥門(mén)使用壽命短。

　　4. Due to the limited load-bearing capacity of the single axis single valve plate, the service life of the valve is short under conditions of large pressure difference and high flow rate.

　　5、電動(dòng)式蝶閥僅有雙位式控制，電動(dòng)執(zhí)行機(jī)構(gòu)與多葉閥相同。

　　5. Electric butterfly valves only have dual position control, and the electric actuator is the same as multi leaf valves.

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