蜜臀av性久久久久蜜臀aⅴ ,人妻视频中文,午夜一区二区小电影

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產(chǎn)品詳情

nongroove pnuematic knife gate valve

氣動(dòng)無(wú)凹槽刀閘閥又稱氣動(dòng)雙向刀閘閥，鑄鐵閥體采用整體式結(jié)構(gòu)刀閘閥,包括閥體,閘板和U型密封條,閥體中腔底部設(shè)有凹槽并裝有彈性U型密封條,當(dāng)閥門關(guān)閉時(shí)閘板下移,閘板底部邊緣與密封條接觸進(jìn)而壓縮密封條進(jìn)入凹槽中實(shí)現(xiàn)閥體和閘板的密封;當(dāng)?shù)堕l閥開(kāi)啟時(shí)閘板上移,閘板底部邊緣與密封條脫離,密封條彈起與凹槽平整,能防止刀閘閥在使用過(guò)程中,介質(zhì)沉淀物積存在閥體中腔的凹槽里，不易堵塞、無(wú)殘留，管道清洗方便，從而有效提高刀閘閥的密封效果,防止閥門關(guān)閉時(shí)泄漏。使用壽命更長(zhǎng)，維護(hù)更簡(jiǎn)單；，法蘭密封面鑲O型圈，無(wú)須另配法蘭墊片，安裝簡(jiǎn)單方便，磨擦系數(shù)小，啟閉靈活，該系列刀閘閥可配氣動(dòng)執(zhí)行器，以滿足不同工礦要求使用。號(hào)（200620047950.0）

Pneumatic knife gate valve without groove is also called two-way pneumatic knife gate valve.Cast Iron , with the overall structure,bevel gear knife gate valve includes body,disc and U-seal, groove and flexible U-seal at the bottom of the cavity. Disc is moved down when valve is closed, the bottom edge of disc meets with the seal and then compresses into the groove to achieve sealing . Disc is moved up when knife gate valve is opened, the bottom edge of disc breaks from seal. Seal bounces up with groove formation to prevent media accumulated in the body cavity , not blocked easily and residue, pipe is cleaned easily ,and to prevent leakage when knife gate valve is closed .That improves knife gate valve's sealing effect effectively . With longer service life, simply maintenance ,flange O-ring sealing , without changing flange gasket,simply installation and small friction coefficient ,flexibly opening and closing, the series knife gate valve can be equipped with bevel gear to easily open to meet different industrial and mining using.

Patent number（200620047950.0）

產(chǎn)品型號(hào)：QUZ673X-10

外型結(jié)構(gòu):凸耳

公稱通徑范圍：DN40-DN800

公稱壓力范圍：國(guó)標(biāo)、美標(biāo)、日標(biāo)、德標(biāo)、英標(biāo)

材質(zhì)：鑄鐵、球磨鑄鐵

閘板材質(zhì)： 201、304、316、316L

連接形式：法蘭、對(duì)夾

密封圈：丁腈橡膠、三元乙丙橡膠

填料密封：含油四氟盤根

適用介質(zhì)：污水、粉體顆粒、紙漿

Model:QU673X-10