... ,copper sealed register 2,Multi jet 3,Dry-dial 4,Class B descriptionDescription:Feature1.Dry-dial,Magnetic drive,Resistance ... jet3.Selected high quality materials for steady & reliable characteristic 4.Vacuum sealed register ensures the dial kept free from ... unit,passing through the pipeline. Working conditionCold water temperature: ≤40 , Hot water temperature: ≤90 Water pressure:≤1Mpa Main technical ...