Marine Cast Steel Check Valve
Marine cast steel check valves find applications in various onboard systems such as cooling water systems, ballast systems, bilge systems, fuel oil systems, and other piping systems where preventing backflow is essential.
Overview
Material:
These valves are typically made from cast steel, a robust material known for its durability and resistance to corrosion, making it suitable for marine environments.
Design:
Marine check valves often feature a swing-type design, where a hinged disc swings open in the direction of flow and closes to prevent backflow.
Pressure Class:
They are available in various pressure classes to suit different applications and operating conditions typically ranging from Class 150 to Class 2500.
End Connections:
These valves come with different end connections such as flanged, threaded, or socket weld connections to facilitate easy installation in different piping systems aboard ships.
Drawing:
Elementary Dimensions | |||||||||||||||||
PN (Mpa) | DN (mm) | Frame dimension | Thickness | Flange | bolt | Lift Range | Weight kg | ||||||||||
I | J | H = | Hi | ||||||||||||||
A | B | A | B | B | D | Di | D2 | do | b | n | Th. | A | B | ||||
1.0 | 65 | 290 | 115 | 123 | 94 | 115 | 6 | 155 | 123 | 104 | 15 | 14 | 6 | M14 | 19 | 122 | 11.3 |
80 | 310 | 125 | 139 | 104 | 125 | 170 | 138 | 118 | 8 | 23 | 164 | 14.3 | |||||
100 | 350 | 150 | 160 | 117 | 135 | 190 | 158 | 138 | 28 | 24.6 | 22.7 | ||||||
125 | 400 | 175 | 185 | 129 | 155 | 7 | 215 | 183 | 164 | 10 | 35 | 37 | 30.4 | ||||
1.6 | 197 | 143 | 225 | 187 | 168 | 17 | 17 | M16 | 45.8 | 40.0 | |||||||
2.5 | 20 | 150 | 75 | 79 | 66 | 75 | 5 | 95 | 68 | 48 | 13 | 12 | 4 | M12 | 6 | 3.6 | 3.5 |
25 | 160 | 80 | 80 | 67 | 80 | 105 | 73 | 56 | 13 | 7 | 43 | 4.1 | |||||
32 | 180 | 85 | 85 | 68 | 85 | 115 | 83 | 64 | 15 | 6 | M14 | 9 | 5.0 | 4.8 | |||
40 | 200 | 90 | 88 | 76 | 90 | 125 | 93 | 74 | 14 | 12 | 63 | 6.0 | |||||
50 | 230 | 95 | 109 | 85 | 95 | 6 | 135 | 103 | 84 | 15 | 8.6 | 8.2 | |||||
65 | 290 | 115 | 123 | 94 | 115 | 7 | 170 | 132 | 110 | 17 | 17 | 8 | M16 | 19 | 133 | 11.5 | |
80 | 310 | 125 | 150 | 110 | 125 | 8 | 185 | 147 | 126 | 19 | 23 | 19.8 | 17.3 | ||||
100 | 350 | 150 | 155 | 118 | 135 | 205 | 167 | 146 | 10 | 28 | 303 | 25.7 |