Product model: D371F4/D371F46
Nominal path: DN40-1000mm
Nominal pressure: PN1.0~1.6 MPa
Design standard: GB/T2238-2008
Connection size: GB/T9113.1-2000
Structure length: GB/T12221-1989
Pressure test: GB/T13927-2008
Cover type: Cover type
Valve body type: direct cast butterfly valve
Valve Plate Form: Vertical Plate (Butterfly)
Sealing filler: polyperfluoroethylene propylene (F46)
PRODUCT OVERVIEW
The clip-on fluorine-lined middle-line butterfly valve uses Tetrafluorine material with thick lining technology on the flow passage parts, valve body, butterfly plate and valve stem, which has good corrosion resistance.It can be used in any concentration of acid, alkali, salt, oxidant, reducing agent, organic solvent and other media. The clip-on fluorine-lined butterfly valve is an ideal valve for intercepting and regulating equipment in pipes and containers of chemical industry, petroleum, medicine, food, steel, smelting, paper making.
STRUCTURAL FEATURES
1. The valve has a novel, rational design, unique structure, light weight, fast opening and closing. It has small operating moment, convenient operation and smart labor saving. It can be installed anywhere and maintained conveniently.
2. Its sealing parts can be replaced, and the sealing performance can be reliably achieved with small leakage in both directions. The sealing materials are aging resistant, corrosion resistant and have a long service life.
MAJOR PARTS MATERIALS
| Part Name | Material Science |
| valve body | WCB、QT450-10、HT200、HT250 |
| Disc | WCB、QT450-10、HT200、HT250 |
| Valve shaft | 2Cr13 |
| Seal ring | Nitrile oil-resistant rubber |
| filler | Flexible graphite |
MAIN CONFIGURATION CONNECTION DIMENSIONS
| Nominal Passage | L | D | D1 | D2 | f | b | Z-φd | |
| DN（mm） | NPS（inch） | PN1.0MPa | ||||||
| 40 | 1-1/2 | 33 | 145 | 110 | 85 | 3 | 18 | 4-φ18 |
| 50 | 2 | 43 | 160 | 125 | 100 | 3 | 20 | 4-φ18 |
| 65 | 2-1/2 | 46 | 180 | 145 | 120 | 3 | 20 | 4-φ18 |
| 80 | 3 | 49 | 195 | 160 | 135 | 3 | 22 | 4-φ18 |
| 100 | 4 | 56 | 215 | 180 | 155 | 3 | 22 | 8-φ16 |
| 125 | 5 | 64 | 245 | 210 | 185 | 3 | 24 | 8-φ18 |
| 150 | 6 | 70 | 280 | 240 | 210 | 3 | 24 | 8-φ23 |
| 200 | 8 | 71 | 335 | 295 | 265 | 3 | 26 | 8-φ23 |
| 250 | 10 | 76 | 390 | 350 | 320 | 3 | 28 | 12-φ23 |
| 300 | 12 | 83 | 440 | 400 | 368 | 4 | 28 | 12-φ23 |
| 350 | 14 | 92 | 500 | 460 | 428 | 4 | 30 | 16-φ23 |
| 400 | 16 | 102 | 565 | 515 | 482 | 4 | 32 | 16-φ25 |
| 450 | 18 | 114 | 615 | 565 | 532 | 4 | 32 | 20-φ25 |
| 500 | 20 | 127 | 670 | 620 | 585 | 4 | 34 | 20-φ25 |
| 600 | 24 | 154 | 780 | 725 | 685 | 5 | 36 | 20-φ30 |
| 700 | 28 | 165 | 895 | 840 | 800 | 5 | 40 | 24-φ30 |
| 800 | 32 | 190 | 1010 | 950 | 905 | 5 | 44 | 24-φ34 |
| 900 | 36 | 203 | 1110 | 1050 | 1005 | 5 | 46 | 28-φ34 |
| 1000 | 40 | 216 | 1220 | 1160 | 1115 | 5 | 50 | 28-φ34 |
| 1200 | 48 | 254 | 1450 | 1380 | 1325 | 5 | 56 | 32-φ41 |
PN1.6MPa | ||||||||
| 40 | 1-1/2 | 33 | 145 | 110 | 85 | 3 | 18 | 4-φ18 |
| 50 | 2 | 43 | 160 | 125 | 100 | 3 | 20 | 4-φ18 |
| 65 | 2-1/2 | 46 | 180 | 145 | 120 | 3 | 20 | 4-φ18 |
| 80 | 3 | 49 | 195 | 160 | 135 | 3 | 22 | 8-φ18 |
| 100 | 4 | 56 | 215 | 180 | 155 | 3 | 24 | 8-φ18 |
| 125 | 5 | 64 | 245 | 210 | 185 | 3 | 26 | 8-φ18 |
| 150 | 6 | 70 | 280 | 240 | 210 | 3 | 28 | 8-φ23 |
| 200 | 8 | 71 | 335 | 295 | 265 | 3 | 30 | 12-φ23 |
| 250 | 10 | 76 | 405 | 355 | 320 | 3 | 32 | 12-φ25 |
| 300 | 12 | 83 | 460 | 410 | 375 | 4 | 34 | 12-φ25 |
| 350 | 14 | 92 | 520 | 470 | 435 | 4 | 38 | 16-φ25 |
| 400 | 16 | 102 | 580 | 525 | 485 | 4 | 40 | 16-φ30 |
| 450 | 18 | 114 | 640 | 585 | 545 | 4 | 44 | 20-φ30 |
| 500 | 20 | 127 | 705 | 650 | 608 | 4 | 46 | 20-φ34 |
| 600 | 24 | 154 | 840 | 770 | 718 | 5 | 54 | 20-φ41 |
| 700 | 28 | 165 | 910 | 840 | 788 | 5 | 54 | 24-φ41 |
| 800 | 32 | 190 | 1020 | 950 | 898 | 5 | 54 | 24-φ41 |
| 900 | 36 | 203 | 1120 | 1050 | 998 | 5 | 54 | 28-φ41 |
| 1000 | 40 | 216 | 1255 | 1170 | 1110 | 5 | 60 | 28-φ48 |
