DIN 401522/21 Gate Valve
Integral bronze valve body and internal components deliver outstanding anti-corrosion performance against seawater and humid marine environments.Non rising stem with visual indicator and bolted bonnet structure saves installation space and enables intuitive opening state observation.
Overview
Application:It cuts off or connects pipeline medium with tiny pressure loss, mainly for fresh water, seawater and conventional fluid transmission pipelines.It serves as dedicated sea direct intake valve and general pipeline switch valve widely fitted on ship and offshore platform piping systems.
Material Specification：
| No. | Part Name | Material |
| 1 | Body | Bronze |
| 2 | Disc | Bronze |
| 3 | Square nut | Bronze |
| 4 | Bonnet | Bronze |
| 5 | Stem | Brass |
| 6 | Stuffing box | Bronze |
| 7 | Packing | PTFE |
| 8 | Gland | Bronze |
| 9 | Handwheel | Cast iron |
General Specification:
| Face to Face | DIN 558 |
| Design Std | — |
| Flange Std | EN 1092 (DIN 2501) |
| Test Std | EN 12266 |
| Nominal pressure | 1.0 MPa |
| Applicable temperature | ≤ 200 ℃ |
| Pressure rating | PN10 |
Drawing:
Dimensions:
| DN | L | ≈H | D | D₁ | D₂ | b | n | d₀ | D₀ |
| 40 | 140 | 330 | 150 | 110 | 88 | 15 | 4 | 18 | 140 |
| 50 | 150 | 345 | 165 | 125 | 102 | 17 | 4 | 18 | 140 |
| 65 | 170 | 375 | 185 | 145 | 122 | 17 | 4 | 18 | 180 |
| 80 | 180 | 400 | 200 | 160 | 138 | 18 | 8 | 18 | 180 |
| 100 | 190 | 470 | 220 | 180 | 158 | 18 | 8 | 18 | 200 |
| 125 | 200 | 515 | 250 | 210 | 188 | 21 | 8 | 18 | 200 |
| 150 | 210 | 575 | 285 | 240 | 212 | 22 | 8 | 22 | 200 |
| 200 | 230 | 665 | 340 | 295 | 268 | 24 | 8 | 22 | 250 |
| 250 | 250 | 755 | 395 | 350 | 320 | 26 | 12 | 22 | 250 |
