Model No. Size Description Kv(Cv) Closing pressure Weight (g) SW-B152 15MM (1/2’’) 2 way valve 2.2(2.5) 0.18MPa (25PSI) 700 SW-B202 20MM (3/4’’) 3.0(3.5) 0.16MPa (23PSI) 850 SW-B252 25MM (1’’) 6.9(8.0) 0.14MPa (20PSI) 1000 SW-B153 15MM (1/2’’) 3 way valve 2.6(3.0) 0.18MPa (25PSI) 750 SW-B203 20MM (3/4’’) 3.4(4.0) 0.16MPa (23PSI) 900 SW-B253 25MM (1’’) 6.5(7.5) 0.14MPa (20PSI) 1050 SW-B152H 15MM (1/2’’) High C.P 2 way valve 1.7(2.0) 0.45MPa (65PSI) 700 SW-B202H 20MM (3/4’’) 2.2(2.5) 0.35MPa (50PSI) 850 SW-B252H 25MM (1’’) 3.0(3.5) 0.20MPa (30PSI) 1000 SW-B153H 15MM (1/2’’) High C.P 3 way valve 1.7(2.0) 0.45MPa (65PSI) 750 SW-B203H 20MM (3/4’’) 2.6(3.0) 0.35MPa (50PSI) 900 SW-B253H 25MM (1’’) 3.4(4.0) 0.20MPa (30PSI) 1050