日标青铜直通截止止回阀 JIS F7409 16K
Standard Materials
| body | bc6 |
| bonnet | bc6 |
| disc | bc6 |
| stem | c37710bd or be |
| gasket | non-asbestos |
| DN | d | L | D | C | NO. | h | t | H | D2 |
| 15 | 15 | 110 | 95 | 70 | 4 | 15 | 12 | 130 | 80 |
| 20 | 20 | 120 | 100 | 75 | 4 | 15 | 14 | 140 | 100 |
| 25 | 25 | 130 | 125 | 90 | 4 | 19 | 14 | 155 | 125 |
| 32 | 32 | 160 | 135 | 100 | 4 | 19 | 16 | 165 | 125 |
| 40 | 40 | 180 | 140 | 105 | 4 | 19 | 16 | 185 | 140 |
| 50 | 50 | 210 | 155 | 120 | 8 | 19 | 14 | 229 | 140 |