Resilient Seated Butterfly Valve
Request a Quote
Rubber Wafer Butterfly Valve
Applications
Rubber wafer butterfly valves can be used in water conveyance systems, seawater pipeline systems, gas pipeline systems, and weak acid-base transport systems.
Basic Information
- Size Range
- DN32-DN1200
- Temperature Range T
- 0-100℃
- Maximum Allowable Operating Pressure PN
- 1.0-1.6Mpa
- Pressure Rating
- 1.5-2.4Mpa (Shell)
1.1-1.76Mpa (Seal)
- Applicable Media
- Fresh water, sea water, air, weak acid base, etc
Materials
| No. | Part | Material | No. | Part | Material |
| 1 | Valve Body | Cast Iron, Stainless Steel, Cast Steel, Aluminum Bronze. | 8 | Worm Gear | Cast Iron |
| 2 | Valve Disc | QT450 Nickel Plated, QT450 Nylon Coated, Aluminum Bronze, Stainless Steel 304, Stainless Steel 316, Stainless Steel 316L, Stainless Steel 2507, Stainless Steel 1.4469, and Stainless Steel 1.4529. | 9 | Bolts | 45#, Stainless Steel |
| 3 | Seat Backing Ring | Phenolic, Aluminum Bronze. | 10 | O-Ring | NBR |
| 4 | Valve Seat (Rubber) | EPDM, NBR, FTFE, Silicone, Fluoroelastomer, Heat-Resistant EPM, and Wear-Resistant EPM | 11 | Retaining Ring | 50#Mangalloy |
| 5 | Upper Stem | 45#, 304, 316, 420 Stainless Steel | 12 | Thrust Washer | 45#Galvanized Steel |
| 6 | Lower Stem | 45#, 420 Stainless Steel | 13 | Gasket | 45#Galvanized Steel |
| 7 | Retaining Rod | UPVC, 45# | 14 | Lubricating Sleeve | PTFE |
Specifications
| Size | ØD1/ D2 | 4-Ø d1/d2 | n-Ød3 | ØD3 | ØD4 | H1 | H2 | H3 | M*M | L1 | L2 |
| DN32 | 85.00 | 14 | 4-Ø6 | 36 | 60 | 48.0 | 98.0 | 11 | 9*9 | 32 | 30 |
| 100.00 | 18 | ||||||||||
| DN40 | 106.00 | 22 | 4-Ø7 | 50 | 72 | 65.0 | 119.0 | 11 | 11*11 | 33.5 | 30 |
| DN50 | 120.00 | 21 | 4-Ø7 | 50 | 72 | 70.0 | 125.5 | 11 | 11*11 | 42 | 32 |
| 125.00 | 21 | ||||||||||
| DN65 | 139.50 | 21 | 4-Ø7 | 50 | 72 | 81.0 | 140.5 | 11 | 11*11 | 45 | 47 |
| 145.00 | 21 | ||||||||||
| DN80 | 152.50 | 21 | 4-Ø7 | 50 | 72 | 92.5 | 150.5 | 11 | 11*11 | 45 | 65 |
| 160.00 | 21 | ||||||||||
| DN100 | 175.00 | 21 | 4-Ø10 | 70 | 92 | 109.5 | 170.5 | 14 | 14*14 | 52.1 | 91 |
| 190.50 | 21 | ||||||||||
| DN125 | 210.00 | 23 | 4-Ø10 | 70 | 92 | 124.0 | 187.0 | 17 | 17*17 | 55 | 112 |
| 220.00 | 23 | ||||||||||
| DN150 | 240.00 | 24 | 4-Ø10 | 70 | 92 | 139.5 | 208.5 | 17 | 17*17 | 56 | 146 |
| 250.00 | 24 | ||||||||||
| DN200 | 295.00 | 24 | 4-Ø12 | 102 | 125 | 169.5 | 246.5 | 22 | 22*22 | 61 | 194 |
| 298.50 | 26 | ||||||||||
| DN250 | 350.00 | 26 | 4-Ø12 | 102 | 125 | 201.0 | 285.0 | 22 | 22*22 | 66 | 242 |
| 362.00 | 26 | ||||||||||
| DN300 | 400.00 | 26 | 4-Ø14 | 125 | 150 | 237.0 | 316.0 | 27 | 27*27 | 77 | 292 |
| 432.00 | 26 | ||||||||||
| DN350 | 460.00 | 23 | 4-Ø14 | 125 | 150 | 279.0 | 357.0 | 27 | 27*27 | 77 | 325 |
| 470.00 | 26 | ||||||||||
| DN400 | 515.00 | 26 | 4-Ø18 | 140 | 175 | 300.0 | 382.0 | 40 | 36*36 | 87 | 380 |
| 525.00 | 30 | ||||||||||
| DN450 | 565.00 | 26 | 4-Ø18 | 140 | 175 | 320.0 | 409.0 | 40 | 36*36 | 105 | 428 |
| 585.00 | 30 | ||||||||||
| DN500 | 620.00 | 26 | 4-Ø22 | 165 | 210 | 363.0 | 468.0 | 50 | 46*46 | 130 | 474 |
| 650.00 | 33 | ||||||||||
| DN600 | 725.00 | 20-Ø30 | 4-Ø22 | 165 | 210 | 449.0 | 520.0 | 50 | 46*46 | 152 | 573 |
| 770.00 | 20-Ø36 | ||||||||||
| DN700 | 840.00 | 24-Ø30 | 8-Ø18 | 254 | 300 | 501.0 | 623.0 | 70 | 64*64 | 164 | 673 |
| 840.00 | 24-Ø36 | ||||||||||
| DN800 | 950.00 | 24-Ø33 | 8-Ø18 | 254 | 300 | 681.0 | 581.0 | 70 | 64*64 | 190 | 770 |
| 950.00 | 24-Ø39 | ||||||||||
| DN900 | 1050.00 | 28-Ø33 | 8-Ø18 | 254 | 300 | 733.0 | 639.0 | 80 | 74*74 | 204 | 838 |
| 1050.00 | 28-Ø39 | ||||||||||
| DN1000 | 1160.00 | 28-Ø36 | 8-Ø18 | 254 | 300 | 820.0 | 705.0 | 80 | 74*74 | 215 | 940 |
| 1170.00 | 28-Ø42 | ||||||||||
| DN1200 | 1380.00 | 32-Ø39 | 8-Ø22 | 298 | 350 | 942.0 | 846.0 | 90 | 84*84 | 350 | 1101 |
| 1390.00 | 32-Ø48 |
Certifications
| Item | Standard | Optional Standard |
| Design & Manufacture | GB12238-89 | ISO/DIN10631-91, AP1598 |
| Face to Face Dimension | GB12221-89 | ISO5752-88 |
| Flange Connection | GB9113.1-2000, GB/T9119-2010 | ANSI.B16.5, ISO7005, JIS2220:2004, DIN2532 |
| Valve Test | GB/T13927-92 | ISO/DIN 5208-87 |
| Valve Mark | GB12220-89 | ISO/DIN 5209-87 |
| Valve Supply Requirements | GB/T12252 | ／ |
Features
- Tight Seal: The rubber wafer butterfly valve uses materials like EPDM, NBR, FTFE, silicone, fluorine rubber, heat-resistant EPDM, and wear-resistant EPDM, ensuring a long service life and improved sealing performance.
- High-Strength Valve Disc: The valve disc is of a frame structure, offering high strength and the ability to withstand high flow rates. Additionally, the overall paint design effectively prevents corrosion, allowing for use with different media.
- Bidirectional Sealing: Our rubber wafer butterfly valve has bidirectional sealing functionality and can be installed in any direction.
- Versatile: Capable of opening and closing in pipeline systems and adjusting flow rates.
- Cost-Effective and Low Maintenance: Our cast iron/ductile iron butterfly valves use heavy-duty materials, resulting in cost savings and minimal maintenance requirements.
You might be interested