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Marine Cast Steel Air-Actuated Quick Closing Valve

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China Marine Cast Steel Air-Actuated Quick Closing Valve:

Marine Cast Steel Pneumatic Quick Closing Valve is air-actuated, and also can be controlled by the rope, used as the emergency shut-off valve for marine fresh water, fuel oil, lubrication oil pipe system. It also can be opened/closed by the handwheel as the stop valve. When in emergency, it can be closed by hand on the spot, or remotely.

Technical Specification:

Design Standard: GB/T5744-2008

Test Standard: GB600

Nominal Pressure: 0.6Mpa~2.5Mpa

Flange Standard: GB2501

Working Pressure of Cylinder: 0.3~0.7Mpa

Main Parts & Material:

Body-Cast Steel

Bonnet-Cast Steel

Disc-Carbon Steel

Stem-Stainless Steel

Piston-Brass

Air Cylinder---Stainless Steel

Main Size(mm):

Nominal Size Structural Size Handwheel Lift Range Flange Cylinder Volume
L H L0 b PN6 PN10 PN16 PN25
DN Type A Type B Type A Type B Do m D D1 n-d D D1 n-d D D1 n-d D D1 n-d L
15 130 90 205 220 198 80 8 14 80 55 4-11 95 65 4-14 95 65 4-14 95 65 4-14 0.075
20 150 95 210 220 198 80 8 16 90 65 4-11 105 75 4-14 105 75 4-14 105 75 4-14
25 160 100 230 220 198 80 9 16 100 75 4-11 115 85 4-14 115 85 4-14 115 85 4-14
32 180 105 230 220 198 100 9 18 120 90 4-14 140 100 4-18 140 100 4-18 140 100 4-18
40 200 115 260 265 235 120 13 18 130 100 4-14 150 110 4-18 150 110 4-18 150 110 4-18
50 230 125 290 265 240 140 16 20 140 110 4-14 165 125 4-18 165 125 4-18 165 125 4-18 0.166
65 290 145 315 290 245 140 19 22 160 130 4-14 185 145 8-18 185 145 8-18 185 145 8-18
80 310 155 330 300 245 160 23 22 190 150 4-18 200 160 8-18 200 160 8-18 200 160 8-18
100 350 175 385 335 245 180 30 22 210 170 4-18 220 280 8-18 220 280 8-18 235 190 8-22
125 400 200 442 365 255 180 40 22 240 200 8-18 250 215 8-22 250 215 8-22 270 220 8-26
150 480 225 485 400 260 200 44 24 265 225 8-18 285 240 8-22 285 240 8-22 300 250 8-26
200 600 275 605 510 280 320 64 24 320 280 8-18 340 295 8-22 340 295 12-22 360 310 12-26
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