DIN Wafer Butterfly Valve Ductile Iron PN25
Ductile iron/cast steel/stainless steel body, vulcanized liner wafer type butterfly valve. Centric free stem with standardized pattern for actuator mounting.
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Product Parameters
| Design standard: | EN 593 |
| Face to Face: | ISO 5752 |
| End standard: | DIN 2501 |
| Size: | DN40-DN300 |
| Top flange: | ISO 5211 |
| Flange drilled: | PN25 |
| Pressure rating: | PN25 |
| Media: | Sea water, water |
| Material： | Ductile Iron,Cast Steel, Stainless Steel |
| Option: | With handlever, gearbox and actuator |
Product Dimensions
| DN | n x ød | Hcd | L | H1 | H2 | H3 |
| 40 | 4×18 | 110 | 33 | 73 | 105 | 32 |
| 50 | 4×18 | 125 | 43 | 85 | 130 | 32 |
| 65 | 8×18 | 145 | 46 | 94 | 140 | 32 |
| 80 | 8×18 | 160 | 46 | 105 | 145 | 32 |
| 100 | 8×22 | 190 | 52 | 126 | 160 | 32 |
| 125 | 8×26 | 220 | 56 | 140 | 170 | 32 |
| 150 | 8×26 | 250 | 56 | 151 | 190 | 32 |
| 200 | 12×26 | 310 | 60 | 183 | 220 | 40 |
| 250 | 12×30 | 370 | 68 | 208 | 260 | 40 |
| 300 | 16×30 | 430 | 78 | 252 | 290 | 45 |
Drawings
Material Specification
| No | Part | Material |
| 1 | Body | GGG40/GGG40.3 |
| 2 | Disc | Bronze/Stainless Steel |
| 3 | Seat | NBR/EPDM/VITON |
| 4 | Stem | Stainless Steel |
| 5 | O-Ring | NBR |
| 6 | Bushing | Brass |
| 7 | Pin | Duplex 2507 |
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