JIS 5K Cast Iron Gate valves
JIS 5K cast iron gate valve adopts durable FC20 cast iron body with stable structural strength for 0.5MPa low-pressure operation. Equipped with high wear-resistant bronze seat and disc, it ensures tight sealing and long-term stable switching performance.
Overview
Application:It is widely used for full open and full close isolation on ship fresh water, ballast water and drainage pipelines. It is suitable for general marine and industrial piping systems that require simple and reliable fluid cut-off control.
Material Specification:
| Part No. | Part Name | Material | Material Code |
| 1 | Body | Cast Iron | FC20 |
| 2 | Seat | Bronze | BC6 |
| 3 | Disc | Bronze | BC6 |
| 4 | Stem | Brass | C3771BD |
Technical Specification:
| Nominal Diameter | Test Pressure MPa [kgf/cm] | |
| Body | Seat | |
| 400 or less | 1.03 [10.5] | 0.76 [7.7] |
| 450 to 500 | 0.74 [7.5] | 0.54 [5.5] |
Drawing:

Dimensions:
| Size | L | D | C | No. | h | t | H | Dâ‚‚ | Kg |
| 50 | 180 | 130 | 105 | 4 | 15 | 16 | 285 | 125 | 13.5 |
| 65 | 190 | 155 | 130 | 4 | 15 | 18 | 330 | 140 | 19 |
| 80 | 200 | 180 | 145 | 4 | 19 | 18 | 380 | 160 | 24.2 |
| 100 | 230 | 200 | 165 | 8 | 19 | 20 | 430 | 180 | 35.3 |
| 125 | 250 | 235 | 200 | 8 | 19 | 20 | 495 | 200 | 48.1 |
| 150 | 270 | 265 | 230 | 8 | 19 | 22 | 560 | 224 | 65.3 |
| 200 | 290 | 320 | 280 | 8 | 23 | 24 | 680 | 280 | 103 |
| 250 | 330 | 385 | 345 | 12 | 23 | 26 | 800 | 355 | 164 |
| 300 | 370 | 430 | 390 | 12 | 23 | 28 | 920 | 400 | 236 |
| 350 | 410 | 480 | 435 | 12 | 25 | 30 | 1000 | 450 | 307 |
| 400 | 470 | 540 | 495 | 16 | 25 | 30 | 1100 | 500 | 405 |
| 450 | 500 | 605 | 555 | 16 | 25 | 30 | 1400 | 560 | 581 |
| 500 | 550 | 655 | 605 | 20 | 25 | 32 | 1500 | 560 | 725 |
