Description
The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber.
Features：
(1)The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber.
(2)Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem.
(3)Stainless steel stem with rolled threads for high strength.
(4)The valve can replace stem seals under pressure.
(5)Full bore.
(6)Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.
Standard：
| Design standard | DIN3352 F5, EN1171 |
| Flange drilling standard | EN1092-2 PN10/PN16 |
| Face to face standard | EN558-1 Series 15 |
| Hydraulic test standard | EN1074-1 and 2 /EN12266 |
| Seat:1.1*PN(in bar), Body:1.5*PN(in bar) |
Main Raw Material：
| 1 | Body | Ductile Iron | 9 | Top-nut | Brass |
| 2 | Wedge | Ductile Iron+EPDM | 10 | Washer | PTFE |
| 3 | Stem | Stainless steel | 11 | Thrust collar | Brass |
| 4 | Wedge Nut | Brass | 12 | Washer | PTFE |
| 5 | Bonnet | Ductile iron | 13 | Dust Cover | NBR |
| 6 | Bonnet gasket | EPDM rubber | 14 | Handwheel | Ductile Iron |
| 7 | Bonnet | Ductile Iron | 15 | Bonnet bolt | Steel gr.8.8 |
| 8 | O-ring | EPDM rubber |
| Size | L | D | C | B | n-d | b | f | H | |||
| DN50 | 250 | 165 | 125 | 99 | 4-19 | 19 | 3 | 280 | |||
| DN65 | 270 | 185 | 145 | 119 | 4-19 | 19 | 3 | 305 | |||
| DN80 | 280 | 200 | 160 | 133 | 4-19 | 8-19 | 19 | 3 | 350 | ||
| DN100 | 300 | 220 | 180 | 154 | 8-19 | 19 | 3 | 390 | |||
| DN125 | 325 | 250 | 210 | 184 | 8-19 | 19 | 3 | 470 | |||
| DN150 | 350 | 285 | 240 | 210 | 8-23 | 19 | 3 | 525 | |||
| DN200 | 400 | 340 | 295 | 265 | 8-23 | 12-23 | 20 | 3 | 630 | ||
| DN250 | 450 | 405 | 350 | 355 | 319 | 12-23 | 12-28 | 22 | 3 | 780 | |
| DN300 | 500 | 460 | 400 | 410 | 370 | 12-23 | 12-28 | 24.5 | 4 | 870 | |
| DN350 | 550 | 520 | 460 | 470 | 429 | 16-23 | 16-28 | 26.5 | 4 | 1100 | |
| DN400 | 600 | 565 | 580 | 515 | 525 | 480 | 16-28 | 16-32 | 28 | 4 | 1200 |
| DN450 | 650 | 640 | 565 | 585 | 548 | 20-28 | 16-32 | 30 | 4 | 1300 | |
| DN500 | 700 | 670 | 715 | 620 | 650 | 582 | 20-28 | 20-32 | 31.5 | 5 | 1450 |
| DN600 | 800 | 780 | 840 | 725 | 770 | 682 | 20-31 | 20-37 | 36 | 5 | 1650 |
Technical parameters：
| Nominal diameter(mm) | 50～600 | 50～600 | |
| Nominal pressure(Mpa) | 1.0 | 1.6 | |
| Testing pressure | Shell(Mpa) | 1.5 | 2.4 |
| Seal(Mpa) | 1.1 | 1.76 | |
| Suitable temperature | -40°C～150°C | ||
| Suitable medium | Drinking water、sewage、seawater、irrigation,or other neutral liquid. | ||
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