Flat-Plate Gate Valve 1) API 6D certificated product with pressure range from 150LB to 900LB in diameter at 25MM~900MM. 2) Our company can provide products at customers' request. Design: API 6D Structural Length: API 6D / AMSE B16.10 Flanged ends: ASME B16.5 / MSS SP44 Butt-welding ends: ASME B16.5 Test & Inspection: API 6D / AP 598 Pressure Range: PC1.6 ~ 15.0Mpa (Class150 ~ 900). Diameter Range: DN25 ~ 900mm (1" ~ 36").