Top Entry Ball Valve Name Top Entry Ball Valve Size DN15 to DN600 Normal pressure Class 150, 300, 600, 900, 1500, 2500;  PN16, PN40, PN64, PN100, PN160, PN250 Design standard API 6D, API 608, ASME B16.34, MSS SP-72,BS5351; ISO17292, EN13709 Marked MSS SP-25 Fire safe design API607, API 6FA End flange ANSI B 16.5, ASME B16.47; EN1092, DIN2543 […]