DIN 357321 Bronze Self Closing Valve
High anti-corrosion bronze valve body adapts to humid and seawater contact working environments with long service lifespan.Built-in counterweight structure drives the valve to automatically close instantly once external opening force is removed.
Overview
Application:It is widely fitted on ship oil tanks, ballast tanks and liquid storage tank pipelines to prevent medium overflow.It serves as emergency safety cut-off equipment to avoid leakage risks and protect marine piping system and onboard equipment.
Material Specification:
| No. | Part Name | Material |
| 1 | Body | Bronze |
| 2 | Stem | Brass |
| 3 | Washer | Brass |
| 4 | Disc | Brass |
| 5 | O‑Ring | NBR |
| 6 | Stem | Brass |
| 7 | Bonnet | Brass |
| 8 | Cover | Brass |
| 9 | Spring | SS |
| 10 | O‑Ring | NBR |
General Specification:
| Design Std | |
| Thread Std | ISO 228 |
| Flange Std | EN 1092(DIN2501) |
| Test Std | EN 12266 |
| Nominal Pressure | 1.0Mpa |
| Applicable Temperature | ≤100℃ |
| Pressure Rating | PN 10 |
Drawing:
Dimensions:
| DN | L | ≈ H | G | D | D₁ | n | d₀ |
| 20 | 67 | 112 | G 1" | 105 | 75 | 4 | 14 |
| 25 | 67 | 112 | G 1" | 115 | 85 | 4 | 14 |
