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GB/T 592 Basic parameters of marine flange cast iron check valve:
Type | Nominal pressure/PN | design pressure/MPa | Nominal diameter DN/mm | Applicable media | ||||||
A B | 10 | 1.0 | 65~150 | Sea water, fresh water,lubricating oil, fuel oil | ||||||
16 | 1.6 | 20~50 | ||||||||
AS BS | 6 | 0.6 | 50~150 | |||||||
10 | 1.0 | 65~150 | ||||||||
16 | 1.6 | 20~50 |
Main parts materials:
Part Name | Material | |||||||||
name | Trademark | standard encdoing | ||||||||
Valve body, valve cover | grey cast iron | HT200 | GB/T 9439-2010 | |||||||
Valve disc, bushing | cast tin bronze | ZCuSn10Zn2 | GB/T 1176-2013 | |||||||
bushing | cast aluminum bronze | ZCuAI9Mn2 | GB/T 1176-2013 |
Basic dimensions of type A and type B check valves:
Nominal pressure /PN | Nominal diameter DN/ mm | structure size | wall thickness /t | flange | bolt | Lift/m | theoretical weight/kg | |||||||||||||
L | H≈ | H1 | ||||||||||||||||||
A | B | A | B | B | D | D1 | D2 | d0 | b | n | Th. | A | B | |||||||
10 | 65 | 290 | 115 | 130 | 95 | 115 | 9 | 155 | 123 | 104 | 15 | 15 | 6 | M14 | 19 | 15.1 | 12.9 | |||
80 | 310 | 125 | 151 | 102 | 125 | 170 | 138 | 118 | 8 | 23 | 18.3 | 15.1 | ||||||||
100 | 350 | 150 | 171 | 116 | 135 | 10 | 190 | 158 | 138 | 28 | 24.8 | 21.6 | ||||||||
125 | 400 | 175 | 189 | 135 | 155 | 215 | 183 | 164 | 10 | 35 | 34.7 | 32.9 | ||||||||
150 | 480 | 180 | 219 | 154 | 160 | 11 | 240 | 208 | 190 | 16 | 12 | 42 | 48.4 | 41.2 | ||||||
16 | 20 | 150 | 75 | 87 | 66 | 75 | 7 | 95 | 68 | 48 | 13 | 14 | 4 | M12 | 7 | 4.3 | 3.7 | |||
25 | 160 | 80 | 89 | 67 | 80 | 105 | 73 | 56 | 4.4 | 4.2 | ||||||||||
32 | 180 | 85 | 93 | 68 | 85 | 115 | 83 | 64 | 15 | 15 | 6 | M14 | 9 | 5.3 | 5.2 | |||||
40 | 200 | 90 | 105 | 75 | 90 | 8 | 125 | 93 | 74 | 16 | 12 | 7.3 | 6.6 | |||||||
50 | 230 | 95 | 117 | 85 | 95 | 135 | 103 | 84 | 15 | 8.9 | 8.3 |
Basic dimensions of AS type and BS type check valves:
Nominal pressure PN/ MPa | Nominal diameter DN/ mm | structure size | wall thickness /t | flange | bolt | Lift/m | theoretical weight/kg | |||||||||||||
L | H≈ | H1 | ||||||||||||||||||
AS | BS | AS | BS | BS | D | D1 | D2 | d0 | b | n | Th. | AS | BS | |||||||
6 | 50 | 230 | 125 | 117 | 85 | 95 | 140 | 110 | 88 | 14 | 16 | 4 | M12 | 15 | 9.4 | 10.0 | ||||
65 | 290 | 145 | 130 | 95 | 145 | 7 | 160 | 130 | 108 | 19 | 15.5 | 16.4 | ||||||||
80 | 310 | 155 | 151 | 102 | 155 | 190 | 150 | 124 | 18 | 18 | M16 | 23 | 19.2 | 20.3 | ||||||
100 | 350 | 175 | 171 | 119 | 175 | 8 | 210 | 170 | 144 | 28 | 28.6 | 32.2 | ||||||||
125 | 400 | 200 | 189 | 128 | 200 | 240 | 200 | 174 | 20 | 8 | 35 | 38.2 | 40.3 | |||||||
150 | 480 | 225 | 219 | 154 | 160 | 11 | 265 | 225 | 199 | 42 | 52.0 | 56.4 | ||||||||
10 | 65 | 290 | 145 | 130 | 95 | 145 | 7 | 185 | 145 | 118 | 4 | 19 | 18.1 | 19.0 | ||||||
80 | 310 | 155 | 151 | 102 | 155 | 200 | 160 | 132 | 22 | 8 | 23 | 21.6 | 22.7 | |||||||
100 | 350 | 175 | 171 | 116 | 175 | 8 | 220 | 180 | 156 | 24 | 28 | 29.2 | 30.8 | |||||||
125 | 400 | 200 | 189 | 135 | 200 | 250 | 210 | 184 | 26 | 35 | 40.2 | 42.3 | ||||||||
150 | 480 | 225 | 219 | 154 | 160 | 11 | 285 | 240 | 211 | 22 | M20 | 42 | 56.4 | 60.8 | ||||||
16 | 20 | 150 | 95 | 87 | 66 | 95 | 7 | 105 | 75 | 56 | 14 | 16 | 4 | M12 | 7 | 4.82 | 5.0 | |||
25 | 160 | 100 | 89 | 67 | 100 | 115 | 85 | 65 | 5.1 | 5.3 | ||||||||||
32 | 180 | 105 | 93 | 68 | 105 | 140 | 100 | 76 | 18 | 18 | M16 | 9 | 7.1 | 7.3 | ||||||
40 | 200 | 115 | 105 | 75 | 115 | 6 | 150 | 110 | 84 | 12 | 9.3 | 9.7 | ||||||||
50 | 230 | 125 | 117 | 85 | 125 | 165 | 125 | 99 | 20 | 15 | 11.4 | 12.0 |