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软密封偏心旋塞阀

简要描述:RETZ进口软密封偏心旋塞阀弹性座封结构,偏心密封设计,较传统旋塞阀大大降低了操作扭矩,广泛适用于城市污水、工业污水、泥浆及清水等工作环境,作为截流或调节装置使用

  • 品牌:RETZ
  • 工况条件:开启/截止/节流
  • 温度/压力:P-T: 16bar@80℃
  • 更新时间:2022/11/19
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软密封偏心旋塞阀密封面中心与旋塞旋转轴设计有一偏心距。利用偏心运动原理,关闭时旋塞与阀座愈旋愈紧,保证阀门密封紧密;开启时旋塞与阀座迅速脱离,无接触磨损,操作轻快,阀门使用寿命长 RETZ An eccentric distance is designed between the center of the sealing surface of the soft sealing eccentric plug valve and the rotary shaft of the plug. Using the principle of eccentric motion, when closing, the cock and the valve seat are more and more tightened to ensure that the valve is tightly sealed; When opening, the cock and valve seat can be separated quickly, without contact wear, easy operation and long service life of the valve

进口软密封偏心旋塞阀3.jpg

规范说明/Description of specifications

技术特性

特性参数

工作温度(

080℃

公称尺寸DNmm

50900

公称压力PNmm

1.0

1.6

强度试验压力(MPa

1.5

2.4

密封试验压力(MPa

1.1

1.76

适用工作介质

污水、原水、清水、油类(NBR

驱动方式

手动、传动帽、涡轮、电动、气动

法兰尺寸

GB/T17241.6-1998标准PN10/16

结构长度

GB-12221-89


进口软密封偏心旋塞阀工作原理 working principle

全开位置

直通流道,自冲洗设计,不易冗积杂质。对称矩形喇叭口,使水充形态得到理想的恢复。

全开位置.jpg

调节位置

阀门可在任意开度调节流量,旋塞导流效果明显,流量调节线性好。调节时,旋塞与阀座无接触磨损

调节位置.jpg

全关位置

自紧密封,压力愈高密封性愈好。偏心运动,旋塞与阀座愈旋愈紧。正向密封完全零泄漏

全关位置.jpg

进口软密封偏心旋塞阀性能特点 Performance characteristics

转动90度就能开关,启闭迅速,操作方便 It can be opened and closed by turning 90 degrees, which is fast and easy to operate

阀门没有空腔给介质积聚 The valve has no cavity to accumulate medium进口软密封偏心旋塞阀2.jpg

整体包胶旋塞:球墨铸铁旋塞骨架外用高性能橡胶整体热包覆,密封弹性佳,无橡胶脱落和冲刷腐蚀的担忧 Integral rubber covered cock: nodular cast iron cock framework is externally covered with high-performance rubber, with good sealing elasticity, without fear of rubber falling off and erosion corrosion

特种耐蚀阀座:根据不同工作介质,阀座可选用纯镍、不锈钢或其它特种材料,采用新型表面处理技术与阀体复合而成。结合牢固,可耐多种介质的冲刷腐蚀retz品牌 Special corrosion-resistant valve seat: according to different working media, the valve seat can be made of pure nickel, stainless steel or other special materials, combined with the valve body using new surface treatment technology. Firm combination, resistant to erosion and corrosion of various media

矩形直通流道:直通式流道使阀门水头损失很小;阀座流通截面为矩形,可获得流量的线性调节;矩形较大的几何尺寸和流道自冲洗设计,更适合于污水或含有固体杂质的场合 Rectangular straight passage: straight passage makes the valve head loss very small; The flow section of the valve seat is rectangular, and the linear adjustment of the flow can be obtained; The larger geometric dimension of the rectangle and the self flushing design of the flow passage are more suitable for sewage or occasions containing solid impurities.

一体式弓形阀轴:阀轴与旋塞整体铸造成型,强度和担力传动刚度高,杜绝了传统旋塞阀轴销失效的危险。弓形旋塞,较传统柱塞重量减轻将近一半,在阀门全开时避开流道且具有导流作用 Integrated bow valve shaft: the valve shaft and the cock are integrally cast, with high strength and load transmission stiffness, which eliminates the risk of failure of the traditional cock valve shaft pin. The bow plug, which is nearly half lighter than the traditional plunger, avoids the flow passage when the valve is fully open and has the function of guiding


流量特性 Flow characteristics

当作为调节阀使用时,阀门开度百分比与大流量百分比成线性关系,可根据开度指示器控制阀门流量 When used as a regulating valve, the percentage of valve opening has a linear relationship with the percentage of large flow, and the valve flow can be controlled according to the opening indicator

流量特性.jpg

流阻特性比较 Comparison of flow resistance characteristics

在相同的流量下旋塞阀的压力损失小能耗低,且随着阀门尺寸的增大这一优点更明显 Under the same flow rate, the pressure loss of the plug valve is small and the energy consumption is low, and this advantage is more obvious with the increase of the valve size

流阻特性比较.jpg

主要零部件材料 Main parts and materials

No.

名称

材质

1

阀体 valve body

球墨铸铁 Ductile iron

2

旋塞 Cock

球墨铸铁外包NBREPDM Nodular cast iron is wrapped with NBR or EPDM

3

阀座 valve seat

纯镍、不锈钢或特种材料 Pure nickel, stainless steel or special materials

4

O型密封圈O-ring

NBR

5

轴承 Bearing

青铜或黄铜 Bronze or Brass

6

阀盖 Valve cover

球墨铸铁 Ductile iron

7

V型密封圈 V-shaped sealing ring

NBR

8

压盖 Gland

球墨铸铁 Ductile iron


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