DIN Self Closing Valve
Counterweight driven design enables the valve to automatically close and cut off medium when losing external force.Main body made of nodular cast iron with stainless steel sealing components delivers excellent wear resistance and leakproof sealing effect.
Overview
Application:It is mainly installed on ship fuel oil tanks, ballast tanks and cargo liquid tank pipelines for over-flow protection.It can automatically close to prevent liquid leakage and overflow during pipeline abnormal conditions to ensure vessel operation safety.
Material Specification
| No. | Part Name | Material |
| 1 | Body | Nodular Cast Iron |
| 2 | Seat | SS |
| 3 | Disc | SS |
| 4 | Stem | SS |
| 5 | Bonnet | Nodular Cast Iron |
| 6 | O‑Ring | NBR |
| 7 | Sleeve | Brass |
| 8 | Gland | Cast Iron |
| 9 | Hand lever | WCB |
| 10 | Counter Weight | WCB |
General Specification:
| Design Std | |
| Flange Std | EN 1092(DIN2502) |
| Test Standard | EN 12266 |
| Nominal Pressure | 1,6Mpa |
| Appliable Temperature | ≤200℃ |
| Pressure Rating | PN 16 |
Drawing:
Dimensions:
| DN | L | ≈H | D | D₁ | D₂ | n | d₀ | L₀ |
| 15 | 130 | 160 | 95 | 65 | 45 | 4 | 14 | 300 |
| 20 | 150 | 160 | 105 | 75 | 58 | 4 | 14 | 300 |
| 25 | 160 | 170 | 115 | 85 | 68 | 4 | 14 | 300 |
| 32 | 180 | 170 | 140 | 100 | 78 | 4 | 18 | 300 |
| 40 | 200 | 210 | 150 | 110 | 88 | 4 | 18 | 300 |
| 50 | 230 | 220 | 165 | 125 | 102 | 4 | 18 | 300 |
| 65 | 290 | 225 | 185 | 145 | 122 | 4 | 18 | 300 |
| 80 | 310 | 270 | 200 | 160 | 138 | 8 | 18 | 300 |
