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                                                                                                                                止回閥作用,止回閥原理,止回閥型號,止回閥價格

                                                                                                                                * 來源: http://www.javnevesti.com * 作者: 美國依洛克YLOK進口閥門 * 發表時間: 2020-05-26 11:10:32 * 瀏覽: 214

                                                                                                                                止回閥工作原理

                                                                                                                                止回閥是指依靠介質本身流動而自動開、閉閥瓣,用來防止介質倒流的閥門,又稱逆止閥、單向閥、逆流閥和背壓閥。止回閥屬于一種自動閥門,其主要作用是防止介質倒流、防止泵及驅動電動機反轉,以及容器介質的泄放。

                                                                                                                                止回閥分類

                                                                                                                                止回閥按結構劃分,可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和直通式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為蝶式雙瓣、蝶式單瓣,以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接、焊接和對夾連接四種。

                                                                                                                                止回閥型號編制

                                                                                                                                止回閥型號編制方式(H41H-16C按照順序):止回閥附加型號:HH(微阻緩閉止回閥)、BH(保溫止回閥)、HQ(滾球式止回閥)。1、止回閥類型:H代表止回閥。2、止回閥連接:4代表法蘭、6代表焊接、7代表對夾。3、止回閥形式:1代表升降式、2代表立式、4代表旋啟式、6代表雙瓣式、8代表蝶形。4、止回閥密封:B(巴氏合金)、F(氟塑料)、H(不銹鋼)、M(蒙乃爾合金)、X(橡膠)、Y(硬質合金)、W(直接加工)。5、止回閥壓力:16(壓力16公斤)、PN1.6-2.5MPa、磅級150LB-2500LB、日標5K-63K。6、止回閥材質:Q-球墨鑄鐵、C-碳鋼、P-304、 R-316、A-鈦合金、I-鉻鉬鋼

                                                                                                                                止回閥型號

                                                                                                                                止回閥常見型號:對夾升降式止回閥:H71X、H71H;對夾蝶形雙瓣止回閥:H76X、H76X;對夾圓片式止回閥:H74H、H74I、H74M;靜音止回閥:H42H、H42W;微阻緩閉止回閥:HH44H、HH46H、HH49H;橡膠瓣止回閥:HC44X;消聲止回閥:HC41H、HC41X、HC41T;升降式止回閥:H41H、H41W;滑道滾球式止回閥:HQ41X;焊接止回閥:H61Y、H62Y、H64Y。

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