JIS KS91-A-121 Air Vent Head
The role of the marine JIS KS91-A-121 air vent head is: through inhalation and breathing, the air pressure in the tank is close to atmospheric pressure, so that its pressure is kept within the design pressure of the tank, and it can prevent seawater, rain, and mars from entering the tank.
Overview
Applicable medium
JIS KS91-A-121 Air vent heads suitable for oil and water media. Can be applied to water tank, oil tank and so on.
Material and diameter range
Its body material is usually cast iron or ductile iron, and the air cap float is usually stainless steel.The common JIS KS91-A-121 air vent head diameter range is about DN50-DN450.We can also customize other materials and specifications for you according to your needs.
Connection mode
The connection mode is flange connection, and the flange standard can also be selected according to your needs.
Drawing
Images of JIS KS91-A-121 Air Vent Head
Dimensions(mm) | Weight(Kg) | |||||||||
DN | D2 | D3 | H1 | H2 | T | N | A | A3 | R | |
50 | 105 | 130 | 175 | 127 | 14 | 4-15 | 179 | 139 | 135 | 7.4 |
65 | 130 | 155 | 204 | 164 | 14 | 4-15 | 205 | 160 | 146 | 12.6 |
80 | 145 | 180 | 244 | 176 | 14 | 4-15 | 237 | 188 | 156 | 16 |
100 | 165 | 200 | 220 | 160 | 16 | 8-19 | 245 | 155 | 250 | 23 |
125 | 200 | 235 | 250 | 180 | 16 | 8-19 | 270 | 180 | 288 | 34 |
150 | 230 | 265 | 285 | 208 | 18 | 8-19 | 316 | 216 | 330 | 47 |
200 | 280 | 320 | 365 | 269 | 20 | 8-23 | 394 | 274 | 432 | 72 |
250 | 345 | 385 | 430 | 314 | 22 | 12-23 | 485 | 325 | 546 | 120 |
300 | 390 | 430 | 530 | 367 | 22 | 12-23 | 550 | 384 | 616 | 178 |
350 | 435 | 480 | 570 | 415 | 24 | 12-23 | 661 | 425 | 714 | 196 |
400 | 495 | 540 | 640 | 475 | 24 | 12-23 | 703 | 457 | 749 | 235 |
450 | 555 | 605 | 713 | 522 | 24 | 12-23 | 816 | 510 | 836 | 298 |
