A self-operated control valve, also known as a self operated pressure control valve or self operated temperature control valve, is an auto control valve that relies on the pressure and temperature of the medium flowing through the valve as an energy source to drive the self ...
AP-1103F 3 步梯带扶手防滑坚固宽踏板多用途适用于家庭和办公室扶手梯凳梯子,节省空间,家用钢梯最大承重 150 公斤 ...
Product Item: Ball Valve. Design Standard: API 6D. Body Material: ASTM A182 F316. Nominal Diameter: 4 Inch, DN100. Pressure: Class 150 LB, PN20. Working temperature: -29℃ to +120℃. Face to Face: ASME B16.10. Test and Inspection: API 598.For ...