http://www.zk-v.com/ProductShow_188.html

j641h氣動法蘭截止閥選用原則：

1、高溫、高壓介質(zhì)的管路或裝置上宜選用截止閥。如火電廠、核電站，石油化工系統(tǒng)的高溫、高壓管路上。 
2、管路上對流阻要求不嚴的管路上。即對壓力損失考慮不大的地方。 
3、小型閥門可選用針閥、儀表閥、取樣閥、壓力計閥等。 
4、有流量調(diào)節(jié)或壓力調(diào)節(jié)，但對調(diào)節(jié)精度要求不高，而且管路直徑又比較小，如公稱通經(jīng)≤50mm  的管路上，宜選用。 
5、合成工業(yè)生產(chǎn)中的小化肥和大化肥宜選用公稱壓力PN160  公稱壓力16MPa  或PN320  公稱壓力32MPa  的高壓角式截止閥或高壓角式節(jié)流閥。 
6、氧化鋁拜耳法生產(chǎn)中的脫硅車間、易結(jié)焦的管路上，易選用閥體分開式、閥座可去處的、硬質(zhì)合金密封副的直流式截止閥或直流式節(jié)流閥。 
7、城市建設(shè)中的供水、供熱工程上，公稱通經(jīng)較小的管路，可選用截止、平衡閥或柱塞閥，如公稱通經(jīng)小于150mm的管路上。

j641h氣動法蘭截止閥優(yōu)點是：  在開啟和關(guān)閉過程中，由于閥瓣于閥體密封面間的摩擦力比閘閥小，因而耐磨。  開啟高度一般僅為閥座通道直徑的1/4，因此比閘閥小的多。  通常在閥體和閥瓣上只有一個密封面，因而制造工藝性比較好，便于維修。
優(yōu)點
1、結(jié)構(gòu)簡單，制造和維修比較方便。  
2、工作行程小，啟閉時間短。  
3、密封性好，密封面間磨擦力小，壽命較長。
公稱壓力：PN1.0-25.0Mpa，150Lb-2500Lb
工作溫度：-40-600℃
公稱通徑：DN15-600mm
連接方式：法蘭，螺紋，對焊，承插焊，NPT
材質(zhì)：PVC，ABS，RPP，304，316，304L，316L，WCB，CF3，CF8，CF3M，CF8M，鑄鋼，球墨鑄鐵，鍛鋼，不銹鋼，銅等。

產(chǎn)品型號：J641W-16P、J641W-16R、J641W-16RL、J641W-25P、J641W-25R、J641W-25RL

主要外形尺寸

J641W-16P J641W-16R J641W-16L J641W-16RL不銹鋼氣動截止閥主要外形尺寸

http://www.zk-v.com/CV3000tiaojiefa/                    CV3000調(diào)節(jié)閥

http://www.zk-v.com/CV3000qidongtiaojiefa/        CV3000氣動調(diào)節(jié)閥

http://www.zk-v.com/cv3000diandongtiaojiefa/      CV3000電動調(diào)節(jié)閥

http://www.zk-v.com/diandongtiaojiefa/      電動調(diào)節(jié)閥

http://www.zk-v.com/dddztjf/           電動單座調(diào)節(jié)閥

http://www.zk-v.com/ddtttjf/           電動套筒調(diào)節(jié)閥

http://www.zk-v.com/ddsttjf/               電動三通調(diào)節(jié)閥

http://www.zk-v.com/ddcftjf/               電動襯氟調(diào)節(jié)閥

http://www.zk-v.com/ddwktjf/               電動溫控調(diào)節(jié)閥

http://www.zk-v.com/ddettjf/               電動二通調(diào)節(jié)閥

http://www.zk-v.com/ddgytjf/               電動高壓調(diào)節(jié)閥     

http://www.zk-v.com/qidongtiaojiefa/       氣動調(diào)節(jié)閥

http://www.zk-v.com/qdjxxtjf/              氣動精小型調(diào)節(jié)閥  

http://www.zk-v.com/qdcftjf/               氣動襯氟調(diào)節(jié)閥

http://www.zk-v.com/qddztjf/           氣動單座調(diào)節(jié)閥

http://www.zk-v.com/qdtttjf/               氣動套筒調(diào)節(jié)閥

http://www.zk-v.com/qdgytjf/               氣動高壓調(diào)節(jié)閥

http://www.zk-v.com/qdsttjf/               氣動三通調(diào)節(jié)閥

http://www.zk-v.com/qdettjf/               氣動二通調(diào)節(jié)閥

http://www.zk-v.com/tezhongtiaojiefa/    特種調(diào)節(jié)閥

http://www.zk-v.com/zilishitiaojiefa/    自力式調(diào)節(jié)閥

http://www.zk-v.com/qdVxtjf/             氣動V型調(diào)節(jié)閥

http://www.zk-v.com/qdoxtjf/             氣動O型調(diào)節(jié)閥

http://www.zk-v.com/ddtftjf/             電動通風(fēng)調(diào)節(jié)閥

http://www.zk-v.com/yqzytjf/             氧氣調(diào)節(jié)閥

http://www.zk-v.com/qdtftjf/             氣動通風(fēng)調(diào)節(jié)閥

http://www.zk-v.com/zlswdtjf/            自力式溫度調(diào)節(jié)閥

http://www.zk-v.com/diandongfamen/       電動閥門

http://www.zk-v.com/diandongqiufa/       電動球閥

http://www.zk-v.com/diandongdiefa/       電動蝶閥

http://www.zk-v.com/diandongjiezhifa/    電動截止閥

http://www.zk-v.com/diandongzhafa/       電動閘閥

http://www.zk-v.com/diandongdaozhafa/    電動刀閘閥

http://www.zk-v.com/ddgyzf/              電動高壓閘閥

http://www.zk-v.com/ddsfzf/              電動水封閘閥

http://www.zk-v.com/ddzkzf/              電動真空閘閥

http://www.zk-v.com/dddkjdf/             電動大口徑蝶閥

http://www.zk-v.com/ddgwdf/              電動高溫蝶閥

http://www.zk-v.com/ddtcf/               電動陶瓷球閥

http://www.zk-v.com/ddtcpz/              電動陶瓷排渣閥

http://www.zk-v.com/qidongfamen/         氣動閥門

http://www.zk-v.com/qidongqiufa/         氣動球閥

http://www.zk-v.com/qidongdiefa/       氣動蝶閥   

http://www.zk-v.com/qidongzhafa/         氣動閘閥

http://www.zk-v.com/qidongjiezhifa/      氣動截止閥

http://www.zk-v.com/qidongdaozhafa/      氣動刀閘閥

http://www.zk-v.com/qdtcqf/              氣動陶瓷球閥

http://www.zk-v.com/qdtcjlf/             氣動陶瓷進料閥

http://www.zk-v.com/qdtcclf/             氣動陶瓷出料閥

http://www.zk-v.com/taocifa/             陶瓷閥

http://www.zk-v.com/taocizhafa/          陶瓷閘閥

http://www.zk-v.com/taociqiufa/          陶瓷球閥

http://www.zk-v.com/taocizhihuifa/       陶瓷止回閥

http://www.zk-v.com/taocidiefa/          陶瓷蝶閥

http://www.zk-v.com/taocidaozhafa/       陶瓷刀閘閥

http://www.zk-v.com/taocijiezhifa/       陶瓷截止閥

http://www.zk-v.com/qieduanfa/           切斷閥

http://www.zk-v.com/qidongqieduanfa/     氣動切斷閥

http://www.zk-v.com/paizhazhihuifa/      排渣止回閥

http://www.zk-v.com/paizhazhafa/         排渣閘閥

http://www.zk-v.com/duangangfamen/       鍛鋼閥門

http://www.zk-v.com/zhixingqifujian/     執(zhí)行器及附件

http://www.zk-v.com/ddzxjg/              電動執(zhí)行機構(gòu)

http://www.zk-v.com/qdzxjg/              氣動執(zhí)行機構(gòu)