Wafer Type PTFE Lined Butterfly Vavle
Product purpose:
The wafer type fluorine lined butterfly valve can be applied to any concentration of acid, alkali, salt, oxidant, reductant, organic solvent and other media. It is an ideal product for intercepting and regulating equipment on gas, liquid and semi fluid pipelines and containers of chemical industry, petroleum, medicine, food, steel smelting, papermaking, hydropower and other systems.
Product features:
1. Small volume, light weight, light operation, easy installation and maintenance
2. Excellent and reliable sealing performance, zero leakage and long service life;
3. The flow characteristics tend to be linear and the regulation performance is the best;
4. Simple structure, quick switching, 92 ° rotary opening and closing.
5. It can replace gate valve, stop valve, plug valve, rubber hose valve, diaphragm valve and other valves;
6. Pneumatic and electric devices can be configured according to user needs to meet the needs of remote control and program control;
Product executive standard:
| Product specification | design code | Structure length | Connecting flange | Test and inspection |
| GB/T12238 | GB/T12221 | GB/T9113 | JB/T9092 GB/T13927 | |
| EN593 API609 | EN558 API609 | EN1092 ASME B16.5/16.47 | API598 |
Product performance specification:
| model | Nominal pressure | Test pressurePs | working temperature（℃） | Applicable media | |
| housing | seal up | ||||
| D371F4-10 | 1.0 | 1.5 | 1.1 | -30~180 | Sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, benzene, strong alkali, aqua regia, strong oxidant and other highly corrosive media |
| D371F4-16 | 1.6 | 2.4 | 1.5 | -30~180 | |
| D371F4-10 | 1.0 | 1.5 | 1.1 | -30~160 | |
| D371F4-16 | 1.6 | 2.4 | 1.5 | -30~160 | |
Main parts
| model | Part name | valve body | Disc | Valve shaft | Sealing ring | Lining | Worm gear |
| D371F4-10/16 | Material Science | Carbon steel lined PTFE（F4） | Carbon steel core lined with PTFE（F4） | 20Cr13 | teflon（F4） | silicon rubber | Cast iron, ductile iron |
| D371F46-10/16 | Carbon steel lined PTFE（F46） | Carbon steel core is lined with polytetrafluoroethylene propylene（F46） |
Main overall connection dimensions
| DN | L | H0 | PN6 | PN10 | PN16 | |||
| D1 | Z- d | D1 | Z- d | D1 | Z- d | |||
| 50 | 43 | 306 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
| 65 | 46 | 321 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
| 80 | 46 | 346 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
| 100 | 52 | 387 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
| 125 | 56 | 411 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
| 150 | 56 | 447 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
| 200 | 60 | 572 | 280 | 8-18 | 295 | 8-22 | 295 | 12-22 |
| 250 | 68 | 646 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
| 300 | 78 | 738 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
| 350 | 78 | 761 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
| 400 | 88 | 877 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
| 450 | 107 | 938 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
| 500 | 127 | 993 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
| 600 | 154 | 1131 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
