Size Range: DN50–DN600
Pressure Range: PN6–PN16
End Connection: Wafer, Lug, or Flanged
Material: Cast Iron, Ductile Iron, Stainless Steel
Seals: EPDM, NBR, or PTFE
Valves Design: Soft Seal Centered Disc Design
Face to Face: ISO 5752 Standard
End Connection: Complies with ISO 5211 or ASME Standards
Testing & Inspection: API 598, EN12266
Suitable Medium: Water, Air, Gas, Oil, Chemicals
The Electric Soft Seal Butterfly Valve is engineered for reliable and efficient flow control in diverse industrial systems. Equipped with a soft seal disc and electric actuator, this valve ensures tight shutoff and smooth operation. Its compact design allows for easy installation and maintenance, making it ideal for applications requiring precise automation in fluid control.
The valve seat and valve body are integrated with materials like sulfide, offering good anti-blocking performance, easy maintenance, and eliminating the need for additional gaskets during installation. Materials can be selected according to the medium.
Simple structure, quick to open. Butterfly plate uses streamlined design, allowing bi-directional flow, low resistance, and excellent flow characteristics.
Long service life, fewer opening and closing cycles.
Double-sealing structure ensures zero leakage.
Flow characteristics follow a linear trend, making regulation more precise.
| Category | Standard |
|---|---|
| Manufacturing Standard | GB 12238–89 |
| Flange Standard | GB/T 17241.6, GB/T9113.1 |
| Structure of Length Standard | GB 12221–89 |
| Test Standard | GB/T 13927–92 |
| Model | Rated Pressure PN (MPa) | Shell Test Pressure PS (MPa) | Sealing Test Pressure (MPa) | Working Temperature (℃) | Applicable Medium |
|---|---|---|---|---|---|
| D671X-6 | 0.6 | 0.9 | 0.66 | ≤150℃ | Water, oil |
| D971X-10 | 1.0 | 1.5 | 1.1 | ≤150℃ | Water, oil |
| D671X-16 | 1.6 | 2.4 | 1.76 | ≤150℃ | Water, oil |
| Part Name | Material |
|---|---|
| Valve body, Butterfly plate | Gray Iron, Ductile Iron, Carbon Steel, Stainless Steel |
| Stem | Stainless Steel (2Cr13), 1Cr18Ni9Ti, Medium Carbon Steel |
| Seal Ring | Natural Rubber (NR), Nitrile Rubber (NBR), EPDM, PTFE, Viton |
| Packing | Flexible Graphite |
| DN (mm) | Main dimensions | 0.6 MPa | 1.0 MPa | 1.6 MPa | ||||
|---|---|---|---|---|---|---|---|---|
| L | H1 | H2 | E | F | D1 n–Φd | D1 n–Φd | D1 n–Φd | |
| 50 | 43 | 80 | 160 | 137 | 109 | 110 4–Φ14 | 120 4–Φ19 | 125 4–Φ19 |
| 65 | 46 | 88 | 175 | 204 | 109 | 130 4–Φ14 | 136 4–Φ19 | 145 4–Φ19 |
| 80 | 46 | 96 | 180 | 204 | 109 | 150 4–Φ19 | 160 4–Φ19 | 160 4–Φ19 |
| 100 | 52 | 115 | 200 | 230 | 135 | 170 4–Φ19 | 185 4–Φ19 | 180 4–Φ19 |
| 125 | 56 | 128 | 213 | 271 | 135 | 200 4–Φ19 | 215 4–Φ19 | 210 4–Φ19 |
| 150 | 56 | 140 | 225 | 305 | 153 | 225 4–Φ19 | 238 4–Φ23 | 240 4–Φ23 |
| 200 | 60 | 175 | 260 | 380 | 218 | 280 4–Φ19 | 295 4–Φ23 | 295 4–Φ23 |
| 250 | 68 | 202 | 290 | 462 | 218 | 335 4–Φ19 | 357 4–Φ28 | 355 4–Φ28 |
| 300 | 78 | 242 | 330 | 555 | 218 | 395 4–Φ23 | 407 4–Φ23 | 410 4–Φ28 |
| 350 | 78 | 266 | 360 | 445 4–Φ23 | 467 4–Φ23 | 470 4–Φ28 | ||
| 400 | 102 | 298 | 390 | 495 4–Φ23 | 515 4–Φ28 | 525 4–Φ31 | ||
| 450 | 114 | 315 | 410 | 550 4–Φ23 | 565 4–Φ28 | 585 4–Φ31 | ||
| 500 | 127 | 348 | 430 | 600 4–Φ23 | 620 4–Φ24 | 650 4–Φ30 | ||
| 600 | 154 | 400 | 490 | 705 4–Φ26 | 725 4–Φ27 | 770 4–Φ33 | ||
| 700 | 165 | 520 | 550 | 810 4–Φ26 | 840 4–Φ27 | 840 4–Φ33 | ||
| 800 | 190 | 591 | 610 | 920 4–Φ31 | 950 4–Φ30 | 950 4–Φ36 | ||
| 900 | 203 | 660 | 680 | 1020 4–M27 | 1050 4–M30 | 1050 4–M39 | ||
| 1000 | 216 | 670 | 730 | 1120 4–M27 | 1160 4–M33 | 1170 4–M39 | ||
| 1200 | 254 | 780 | 835 | 1340 4–M30 | 1380 4–M36 | 1390 4–M45 | ||
| 1400 | 279 | 890 | 935 | 1530 4–M33 | 1590 4–M39 | 1590 4–M45 | ||
| 1600 | 318 | 1000 | 1035 | 1760 4–M33 | 1820 4–M45 | 1820 4–M52 | ||
| Medium | Material Name | Applicable Dimension | PT Value | Chlorinity Content (ppm) | Applicable Temperature (°C) | Material Merits | Application Medium |
|---|---|---|---|---|---|---|---|
| Butterfly Plate | SAF2507 Super duplex steel, surface S3 | DN40–1200 | ≥ 3.0 | <30,000 | ≤35–150℃ | High strength, wear-resisting, anti-corrosive, impact-resistant | Limestone serosity, gypsum serosity, washing serosity, process water, waste water Same as above Same as above Process water, waste water, etc. |
| DIN1.4529 Super duplex stainless steel | DN40–1200 | ≥ 6.0 | <50,000 | ≤35–150℃ | Wear-resisting, anti-corrosive, support high-velocity, impact-resistant | ||
| C276 Nickel-based alloy with hard surface S3 | DN40–1200 | ≥ 2.5 | <50,000 | ≤35–150℃ | Hard alloy surface, anti-corrosive | ||
| Hostalen Gur | DN40–1200 | ≥ 5.0 | <5,000 | ≤35–150℃ | Anti-corrosive | ||
| CF8M Ultra-low carbon stainless steel | DN40–1200 | ≥ 5.0 | <5,000 | ≤35–150℃ | Anti-corrosive | Process water, waste water, etc. |
| Seat Type | Material Name | Applicable Dimension | PT Value | Chlorinity Content (ppm) | Applicable Temperature (°C) | Material Merits | Application Medium |
|---|---|---|---|---|---|---|---|
| Seat (liner) | CSM elastic rubber | DN40–1200 | ≥ 0 | <160,000 | ≤35–150℃ | Wear-resisting, anti-corrosive | Limestone serosity, gypsum serosity, washing serosity, process water, waste water Same as above |
| EPDM EPDM Rubber | DN40–1200 | ≥ 2.5 | <150,000 | ≤35–150℃ | Anti-corrosive, support high-velocity |
| Body Material | Code | Disc Material | Code | Shaft Material | Bush Material | Seat Material | Code | Applicable Temperature (°C) |
|---|---|---|---|---|---|---|---|---|
| Grey Iron | Z | Electroplated Ductile Iron | B1 | Stainless Steel | Lubrication Bronze | Natural Rubber (NR) | X1 | –20 ~ +85 |
| Nodular Iron | Q | Aluminum Bronze | B2 | Carbon Steel | PTFE | Hypalon | X2 | –18 ~ +135 (short-term) –18 ~ +149 (short-term) |
| Aluminum Bronze | T | ZG1Cr18Ni9Ti Stainless Steel | B3 | EPDM | X3 | –45 ~ +135 (short-term) –50 ~ +149 (short-term) | ||
| ZG1Cr18Ni9Ti Stainless | P | Titanium Steel | B4 | Chloroacetyl Rubber | X4 | –7 ~ +93 (short-term) –7 ~ +107 (short-term) | ||
| CF8M Stainless Steel | R | CF8M Stainless Steel | B5 | NBR | X5 | –12 ~ +82 (short-term) –12 ~ +93 (short-term) | ||
| Carbon Steel | C | Carbon Steel | B6 | Wear-resistant Rubber (WR) | X6 | –10 ~ +50 | ||
| CF8M Stainless Steel | B7 | Viton | X7 | –23 ~ +150 | ||||
| Heat-resistant EPDM | X9 | –20 ~ +150 | ||||||
| PTFE | F4 | +10 ~ +150 |
Note: Suitable materials include C276, DIN1.4529, 1.4469, 1.4462, 1.4401, 1.4410, 1.4408/SAF2507, Monel, 904L, 255 alloy etc.
Discover our premium valve solutions and boost your efficiency. Contact
us now to find out how we can support your needs with top-quality
products and exceptional service.
028-86938588
© MacoTango Valve Group. All Rights Reserved.
