美国尼伯科抗脱锌平衡阀
NIBCO DZR BALANCING VALVES

　　1710系列螺纹和承插端口平衡阀，突破了传统的斜形或Y形平衡阀的结构形式。
　　The 1710 Series threaded and solder end range breaks with the convention of the normal oblique or "Y" pattern design of balancing valves.
　　与其它结构平衡阀相比，1710系列平衡阀独特的结构，改善了流量测量的精确度，减少了压头损失。
　　Unique design features in the 1710 Series give improved flow measurement accuracy as well as a lower head loss characteristic compared to other valves.

• 止动记忆功能使得用户能够重复调节和控制
  Memory Stop feature provides repeatable regulation and control
• 阀门通径标记在手轮和阀体上
  Valve size identification on the hand wheel and body
• 在手轮显示窗口里阀门位置清楚可见
  Valve position clearly visible in the hand wheel display window
• 无与伦比的调节性能
  Unequalled regulation performance
• 精确的通过所有阀门位置
  Accurate across all valve positions
• 完全的关闭和隔断
  Positive shut-off and isolation

　　737系列法兰和槽状(卡箍)连接端口通径范围从DN50至DN300。铸铁阀体和球墨铸铁阀帽是标准配置。
　　The 737 Series flanged and grooved end range is from 2" through 12". Cast Iron bodies and Ductile Iron bonnets are standard.

• 紧凑的暗杆结构
  Compact non-rising stem design
• 完全的关闭，配置三元乙丙橡胶硬化弹性体阀瓣
  Positive shut-off with EPDM vulcanized elastomer disc
• 石墨阀杆密封
  Graphite stem sealing
• 线性刻度，具有细分的增量，用于精确表示位置
  Linear scale with subdivision increments for accurate position indication
• 离散的止动记忆功能位于保护盖下方
  Discrete memory stop feature located beneath protective cap
• 易于安装的型号631测试点
  Easy installation of the Figure 631 test points
• 在全开至25%开启度之间，调节和流量测量的精确度为±10%
  Regulation and flow measurement accuracy with ±10% between full and 25% open
• 备选配件包括蒸汽密封和隔离组件
  Optional vapor seal and insulation kit