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首页 > 供应产品 > 缓闭式止回阀 300X
缓闭式止回阀 300X
浏览: 794
单价: 面议
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发货期限: 自买家付款之日起 天内发货
有效期至: 长期有效
最后更新: 2022-09-23 15:17
 
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产品简介:

缓闭式止回阀一般分为隔膜阀和活塞阀两大类,本公司生产的缓闭式止回阀口径在DN500mm以下者采用隔膜型,口径在DN600mm以上者采用活塞型,两者之动作原理类似。缓闭式止回阀具有开启和关闭速度调控和逆止功能,阀门安装能有效控制水泵在启动与停止转动时会自动调节到***开启和关闭的速度。广泛适用于工业给水、高层建筑由水泵直接给水系统中,有效减少水锤及水击现象产生,达到安全关闭效果。Products Introduction:Dashpot check valves are usually divided into diaphragm valves and piston valves two categories, the caliber of the  company’s production bellows DN500 using diaphragm type, and DN600 more in the use of piston type, whichever is the principle of similar moves. Dashpot check valve has the function of opening or cutting the speed control and pawl, it can control the water pump availably when the water pump is opening and stopping, the valve will regulate the speed of opening or closing automatically to the best state. It is widely used in the system whose water is supplied by the water pump, such as the industrial water supply、tall building water supply, effectively reduce the times of the water hammer and water beat, up to the safely effect of the closure. 主要零部件材质:Material of Main Parts:
序号Sequence Number部件名称Part Name材质Material
1阀体Body灰铸铁Cast Iron
2轴套Busing不锈钢Stainless Steel
3阀座Seat青铜Bronze
5密封SealEPDM
6阀板Disc灰铸铁Cast Iron
7垫片FlakeEPDM with Nylon
9  螺母Bonnet灰铸铁Cast Iron
10  弹簧Spring不锈钢Stainless Steel
11转轴Stem不锈钢Stainless Steel
              主要性能参数Main Performance Parameters:隔膜式:DN20-500活塞式:DN600-800
公称压力Nominal Pressure PN(MPa)1.01.62.5
法兰连接标准Flange Design StandardGB/T 17241.6-1998GB/T9113.1-2000
壳体试验压力Shell Testing Pressure(MPa)1.52.43.75
密封试验压力Sealing Testing Pressure(MPa)1.11.762.75
***入口压力Max Pressure of Entrance(MPa)1.01.62.5
***动作压力Min Pressure of Motion(MPa)≥0.07
工作温度Working Temperature0℃~80℃
适用介质Suitable Mediums水Water
 主要外形尺寸和连接尺寸:Outline Dimensions & Connection Dimensions: 
公称通径Nominal DiameterDN (mm)LAA1HH1F
20180282200172106116
25180     282200172106116
32180282200172106116
40240320210265210170
50240320210265210170
65250     330215310215180
80285350220350245210
100360410230460305275
125400420245520365310
150455430260570415355
200585440280695510460
250650450300780560500
300800460320905658580
3508604703401025696650
4009604803601080735715
4509705303951030610780
50010755804201135665830
60012306004451270725920
70016507304951460865980
800175083053016409251050


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