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產品介紹

結構及用途 CONSTRUCTION AND USAHE

該產品是引進歐洲高科技橡膠及閥門制造技術生產的,克服了橡膠老化及生銹等缺陷。該閥利用彈性閘板產生微量彈性變形的補償作用達到良好的密封效果,該閥具有開關輕巧、密封可靠、彈性記憶佳及使用壽命長等顯著優點,產品廣泛用于自來水、污水、海水、水處理、環保、建筑、石油、化工、電力、食品、醫藥、輕紡、船舶、能源等行業管路線上作為調節和截流裝置作用。

This product is made by means of importing the high-tech rubber and the know-how of valve manufacture of Europe and over comes the defectives as rubber aging and rust etc., It uses the compenseating actiion ftrom the micro-deformation of elasticity produced by the elastic gate plate to get the good sealing effect and features the advantages of light on-off, reliable sealing, good memory of elasticity, long duration and so on. It can be used as the adjust and shutoff device on the popeline in tap water, sewage,seawater,water treatment, environmentAl protection, construction, petroleum, chemical indystry, electric power, food medicine, light & textile industry, ship, energy source etc. industries.

平底式閥座Flat-bottom valve seat

一般閘閥往往在通水沖洗管過后即因外物諸如水泥塊、鐵屑等雜物淤積于閥門底凹槽內,容易造成無法關閉緊密而形成漏水現象,彈性座封閘閥底部采用與管道相同的平底設計,不易造成雜物淤積,使流體暢通無阻。

For the common gate valves, it is easy to make it unable to tihgtly close the valve and thus resulting in leakage after being rinsed with water because of the foreign matters such as stones, wood blocks, cement, ferric bits, sundry things etc. Which are piled up inside of the concave slot on the valve bottom. The elastic-seat enclosed gate valve uses the same design of flat-bottom as that of the pipeline so as not to be easy to get sundry matters piled up thus making the fluid smoothly flowing without any resistance.

重量輕Light weight

本閥采用高級球墨鑄鐵制成,重量較傳統閘閥重量減輕約20%-30%,安裝維修方便。

This valve is made of high-quality Ductalloy, resulting in a reduction of weight by about 20%-30% of that of the traditional ones and an easy installation and service.
精鑄閥體Finely casted valve chest

閥體采用精密鑄造,精確的幾何尺寸使得閥體內部無需任何加工即可保證閥門的密封性。

The valve chest is finely casted and the accurate geometric sizes of it makes the internal part umecessary for and process for assuring the valve to be losely sealed.

閥板包膠 Rubber-wrapped valve plate

閥板采用高品質的橡膠進行整體內外包膠,歐洲一流的橡膠硫化技術使得硫化后的閥板能夠保證精確的幾何尺寸,且橡膠與球墨鑄鐵閥板接著牢靠,不易脫落及彈性記憶佳。

The valve plate is overally and inside and out-side wrapped with the rubber of top grade and the first-rate know-how of rubber sulphurization of Europe makes the sulphurized valve plate’s geometric size assured with accuracy and the joint between the rubber and the ductalloy valve plate reliable, not easy to fall out and leaves a good elastic memory.

三“O”型環密封圈Three o-type sealing rings

由于閥桿與閥蓋采用三道“O”型環密封圈密封設計,可減少開關時的磨擦阻力,大幅度減少漏水現象及可以不停管路內介質流動進行更換密封圈。

The design of three O-type sealing rings used between both valve rod and valve cover can reduce the frictional resistance at open orclose and water leakage a great deql, and the sealing ring can be replaced without stopping the medium to flow inside of the pipeline.

不易碎裂Not fragile

以往傳統低壓閘閥采用球墨鑄鐵,常因外物碰撞或重壓而造成斷裂等現象,由于本閥閥體采用鑄鐵,此種情形已可大幅度減少。

The traditional low-pressure gate valves are made of cast-iron and often made broken or fragmentized when suffered a collision by a foreign object or a heavy press, which is greaty reduced to the valve chest of this valve due to the Ductalloy of which it is made.

有助生飲 Helpful to uncooked drinking

由于閥體內部以無毒性環氧樹脂涂裝,閥板的內外表面均以橡膠完全披覆而不至于出現鐵水或腐蝕現象,可供生飲。

Because of the non-toxic epoxy resin coated on the internal of the valve chest and the rubber wrapped completely on both inner and outer surfaces of the valve plate,no ferric water or corrosion would occur, thus being helpful to uncooken drinking.

省力裝置 Labour-saving device

DN450-600mm,可另行加裝省力裝置,所需扭力約為正常的1/2,僅需一只小手輪,在有壓力情況下,即可操作全開或全關,該省力裝置于每動作一次,需先將閥門全開后恢復省力功能。

To 450-600mm, the labour-saving device as shown in the figure on right-down can be additionally nountedm,with which, the required torque is about 1/2 of the one under the normal condition and, with a small handwheel only. At every time of action, the labour-saving function of the device will not be reset until the valve is fully opened.

主要外形及連接尺寸

公稱通徑 L D D1 b n-φd1 H
mm in
50 2″ 178 160 125 20 4-18 245
65 21/2″ 190 180 145 20 4-18 275
80 3″ 203 195 160 21 4-18/8-18 305
100 4″ 229 215 180 21 8-18 330
125 5″ 254 245 210 22 8-18 375
150 6″ 267 285 240 22 8-23 415
200 8″ 292 335 295 23 8-23/2-23 510
250 10″ 330 390/405 350/355 24 12-23/12-25 620
300 12″ 356 440/460 400/410 25 12-23/12-25 700
350 14″ 381 500/520 460/470 26 16-23/6-25 785
400 16″ 406 565/580 515/525 40 16-25/16-30 855
450 18″ 432 615/640 565/585 44 20-25/20-30 950
500 20″ 457 670/705 620/650 46 20-25/20-34 1050
600 24″ 508 780/840 725/770 54 20-30/20-41 1200

注:①以上法蘭尺寸按國標;②并可按 BS5163與DIN3352A.JIS5527標準制造。

 
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