调节阀

• Regulator shall be a watts regulator company series p50 or p60
  这种调节阀应该是美国瓦茨调节阀公司系列p50或p60 。
• Steam proportional valve
  蒸气热水用比例调节阀
• Self - operated flow regulator
  自力式流量调节阀
• Mechanism of temperature regulator and application of home produced regulator
  自力式温度调节阀的原理及国产阀的应用
• Combination flow regulator
  组合式流量调节阀
• Cage positioned ball valve
  笼式定位球调节阀
• Weight - loaded regulator
  重力型自力式调节阀
• Spring - loaded regulator
  弹簧型自力式调节阀