... , PTEFValve ball: ZrO2, SUS304, SUS316, CeramicWork ConditionEnvitonment temperature: -30°C --- 60°CPackageMaterial:Paper cartonMeasurement:27x22x23cmGross Weight:5.5kgsTechnical ParameterModelFlow (lph)Pressure ... operation. Mechanical actuate diaphragm. Changeable eccentric drive2.Power off seal,no leakage,with security delivery device,simple maintance3.It can transport ...