nongroove wear manual knife gate valve of wear resistant

本實(shí)用新型涉及一種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閥開啟時閘板上移,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程中,介質(zhì)沉淀物積存在閥體中腔的凹槽里，不易堵塞、無殘留，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)閉時泄漏。在通徑介質(zhì)流通區(qū)域采用鑄石耐磨圈鑲套固定,使得閥門具有耐磨特性,提高了閥體通徑受介質(zhì)的沖刷腐蝕,大大提高閥門使用壽命，維護(hù)更簡單；法蘭密封面鑲O型圈，無須另配法蘭墊片，安裝簡單方便，磨擦系數(shù)小，啟閉靈活。

號（200620047950.0）

The utility model involves 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 manual ,electric,pneumatic, electric , bevel gear,etc. actutator to meet different industrial and mining using.

Patent number（200620047950.0）

產(chǎn)品型號：QUZ73G-10

外型結(jié)構(gòu):凸耳

公稱通徑范圍：DN40-DN400

公稱壓力范圍：國標(biāo)、美標(biāo)、日標(biāo)、德標(biāo)、英標(biāo)

材質(zhì)：鑄鐵、球墨鑄鐵

閘板材質(zhì)： 201、304、316、316L

連接形式：法蘭、對夾

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:QUZ673G-10

Exterior structure: lugged

Specs:DN40-DN400

Pressure standard: national standard、American standardd、Japanese standard 、German standard、British standard

Material:cast iron、Ductile cast iron

Disc:201、304、316、316L

Connection: flange 、wafer

Seat ring :NBR、EPDM

Sealing filler: PTFE

Media: swage、power、 paper pulp