cast iron gate valve 1.size:1/2"~40" 2.pressure class:PN1. ... degree 4.ISO5208,API600 cast iron/electric/resilient/underground gate valve 1) Sizes: 1/2 - 60" (DN15-1500)2) Pressure class: ... , C5, CF8, CF3, CF3M, and CF8M 6) Connection: FF, RF 7)Actuator: Manual, gear wheel, electric actuator, pneumatic ... and wedge single disc API Gate Valves Techanical standard: 1)Design and manufacture: API 600, BS 1414, ...